Purification and characterization of antimicrobial peptide fractions of Junipers seravschanica
Publication date: Available online 21 February 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Khamis Al-Dhafri, Chai Lay Ching, Saiful Anuar KarsaniAbstractThe emergence of antibiotic resistance among bacteria leads to the urge of finding an alternative solution. Therefore, antimicrobial peptides (AMPs) have emerged as a promisingly new group of therapeutic agents for managing infectious diseases. This research was designed to explore the potency of antimicrobial peptides from Omani Juniperus seravschanica plant and their mode of action. The isolated AMPs showed to have inhibitory activity towards pathog...
Source: Biocatalysis and Agricultural Biotechnology - February 22, 2020 Category: Biotechnology Source Type: research

Bioadsorption and enzymatic biodecolorization of effluents from ethanol production plants
Publication date: Available online 22 February 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Zhila Ziaei-Rad, Mojdeh Nickpour, Mehrdad Adl, Mohammad PazoukiAbstractDistillery effluent must be handled in compliance with the demands and obligations of Environmental Quality Standards (EQS). As Iranian bioethanol plants often face the problem of high color content, therefore, an efficient decolorization process is required to determine the quality of effluent so as to meet demanded standards. The existing color in effluent is identified as Melanoidins, which is adsorbed by fungal mycelia or biodegraded. In ...
Source: Biocatalysis and Agricultural Biotechnology - February 22, 2020 Category: Biotechnology Source Type: research

Termiticidal activity of chitinase enzyme of Bacillus licheniformis, a symbiont isolated from the gut of Globitermes sulphureus worker
Publication date: Available online 19 February 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Nurul Akmar Hussin, Abdul Hafiz Ab MajidAbstractChitinase is a digestive enzyme that breaks down glycosidic bonds in chitin. Chitin is a biopolymer that can be found in the exoskeleton of insects, fungi, yeast, and algae, and in the internal structures of other vertebrates. Bacillus licheniformis strain USMW10IK was isolated from the guts of Globitermes sulphureus workers. The production of chitinase was highest during the stationary phase (72–96 h of incubation) with the enzyme activity was 0.0057 U/mL ...
Source: Biocatalysis and Agricultural Biotechnology - February 20, 2020 Category: Biotechnology Source Type: research

Biocatalytic reduction of 5-hydroxymethylfurfural to 2,5-furandimethanol using coconut (Cocos nucifera L.) water
Publication date: Available online 20 February 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Ananda S. Amarasekara, Cristian D. Gutierrez Reyes, Rocio Garcia ObregonAbstractThe hexose dehydration product and important renewable feedstock 5-hydroxymethylfurfural can be biocatalytically reduced to 2,5-furandimethanol in 96% yield using coconut (Cocos nucifera L.) water as the biocatalyst at room temperature. The dimer of 5-hydroxymethylfurfural 5,5'-[oxybis(methylene)]bis[2-furaldehyde] can also be reduced to the corresponding diol 5,5'-[oxybis(methylene)]bis-[2-furanmethanol] using coconut (Cocos nucifer...
Source: Biocatalysis and Agricultural Biotechnology - February 20, 2020 Category: Biotechnology Source Type: research

Development of regression model for bacteriocin production from local isolate of Lactobacillus acidophilus MS1 using Box-Behnken design
Publication date: Available online 18 February 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Mahwish Salman, Muhammad Shahid, Tanzila Sahar, Shazia Naheed, Mahmood-ur-Rahman, Muhammad Arif, Munawar Iqbal, Arif NazirAbstractBacteriocins are antimicrobial peptides synthesized by lactic acid bacteria. These are well known for their anti-bacterial activity in fermented foods and extend the shelf-life and safety of food items. The optimum bacteriocin production was predicted from Lactobacillus acidophilus MS1 using Box-Behnken experimental design. The maximum bacteriocin activity titre of 2600AU/mL was obser...
Source: Biocatalysis and Agricultural Biotechnology - February 20, 2020 Category: Biotechnology Source Type: research

Biocatalytic reduction of prochiral ketones to enantiopure alcohols by novel yeast isolates from unique biodiversity
Publication date: Available online 19 February 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Nitish Kumar Verma, Sachin Kumar, Sandal Deep Basotra, Ankita Jain, Mansi Vij, G.S. Prasad, Mani Shankar BhattacharyyaAbstractEnantiopure alcohols are the key building blocks required for the synthesis of a variety of pharmaceuticals, agrochemicals, flavour, aroma compounds and other fine chemicals. Preparation of these synthons using biocatalysis (enzyme/whole cells) is attaining high priority due to several benefits such as high enantio-, regio- and stereoselectivity, environment friendliness as well as better...
Source: Biocatalysis and Agricultural Biotechnology - February 20, 2020 Category: Biotechnology Source Type: research

Survey and isolation of marine cyanobacteria from eastern coast of India as a biodiesel feedstock
Publication date: Available online 17 February 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): V.S. Uma, DineshBabu Gnanasekaran, Uma Lakshmanan, Prabaharan DharmarAbstractNative microalgae were collected and isolated from various coastal habitats of Eastern coast of India and were scrutinized in a biodiesel viewpoint. 55 unialgal marine cyanobacteria were obtained by rapid isolation method developed for the present work. The isolates represented 8 genera and 10 species. To identify the promising candidate for biodiesel, all the isolated microalgae were studied for its total lipid content. The study has i...
Source: Biocatalysis and Agricultural Biotechnology - February 19, 2020 Category: Biotechnology Source Type: research

Construction of a specific, rapid and high-throughput cascade catalytic method for measurements of plasma uric acid by using uricase and trivalent peroxidase-mimicking DNAzyme
In this study, we report a facile and cost-effective system for selective measurement of uric acid (UA) using a cascade mechanism composed of Uricase and peroxidase-mimicking trivalent DNAzyme. A three G-quadruplex-hemin complex was engaged as the peroxidase-mimicking DNAzyme. In this cascade catalysis system, UA was oxidized by uricase to produce hydrogen peroxide, which was also acted as a substrate for the oxidation of 3, 3′, 5, 5′ tetramethylbenzidine (TMB) by a peroxidase-mimicking trivalent DNAzyme. TMB oxidation showed a straight relationship with UA concentration. The cascade catalysis system displayed ...
Source: Biocatalysis and Agricultural Biotechnology - February 19, 2020 Category: Biotechnology Source Type: research

Exploring Pongamia seed cake hydrolysate as a medium for microbial lipid production by Aspergillus ochraceus
Publication date: Available online 15 February 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Harshitha Madhusoodan Jathanna, Chandrayan Vaman Rao, Louella Concepta GoveasAbstractBiofuels and their production is the need of the hour considering the current fuel crisis. In this regard, ways of mitigating biodiesel production costs is being actively researched upon. With the same intention, in the present work, an investigation was carried out to test the capability of utilizing the hydrolysates of de-oiled Pongamia seed cake, a byproduct of biodiesel, for microbial lipid production using Aspergillus ochra...
Source: Biocatalysis and Agricultural Biotechnology - February 17, 2020 Category: Biotechnology Source Type: research

Optimal production of 7,10-epoxy-octadeca-7,9-dienoic acid from 7,10-dihydroxy-8(E)-octadecenoic acid by heat treatment
In this report, we optimized reaction conditions for the efficient production of 7,10-EODA from DOD by heat treatment. Under optimal conditions tested, the maximum production yield of 7,10-EODA was 80% with incubation in hexane for at least 48 h at 85 °C or above. (Source: Biocatalysis and Agricultural Biotechnology)
Source: Biocatalysis and Agricultural Biotechnology - February 16, 2020 Category: Biotechnology Source Type: research

Potential insecticidal activity of Sarocladium strictum, an endophyte of Cynanchum acutum, against Spodoptera littoralis, a polyphagous insect pest
Publication date: March 2020Source: Biocatalysis and Agricultural Biotechnology, Volume 24Author(s): Ashraf S.A. El-Sayed, Ahmed H. Moustafa, Hussein A. Hussein, Aly A. El-Sheikh, Samah N. El-Shafey, Nahla A.M. Fathy, Gamal A. EnanAbstractSpodoptera littoralis has been recognized as the major destructive cause of various economic crops in Egypt. Chemical insecticides have been frequently used, however, the development of insecticidal resistance is the current challenge, thus searching for novel ecofriendly biocontrol agents is the prospective challenge. Fungal endophytes of plants have been recognized as a repertoire for b...
Source: Biocatalysis and Agricultural Biotechnology - February 16, 2020 Category: Biotechnology Source Type: research

Bioprocess for hydrolysis of galacto-oligosaccharides in soy molasses and tofu whey by recombinant Pseudomonas chlororaphis
Publication date: Available online 14 February 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Daniel K.Y. Solaiman, Richard D. Ashby, Nicole V. CrockerAbstractThe main objective of the study was to develop a bioprocess to hydrolyse galacto-oligosaccharides (GOs) using genetically engineered Pseudomonas chlororaphis which could produce biopolymers and biosurfactants. To this end, alpha-galactosidase genes were expressed in P. chlororaphis transformants either via a plasmid vector (i.e., strain [dAG]) or integrated into the chromosome (i.e., strain [chr::AG]). Pseudomonas secretion signals for protein were...
Source: Biocatalysis and Agricultural Biotechnology - February 14, 2020 Category: Biotechnology Source Type: research

The impact of nitrogen concentrations on production and quality of food and feed supplements from three cyanobacteria and potential application in biotechnology
Publication date: March 2020Source: Biocatalysis and Agricultural Biotechnology, Volume 24Author(s): Ahmed Issa, Esmat Ali, R. Abdel-Basset, M.F. Awad, A.M. Ebied, S.A. HassanAbstractPrimary metabolites (carbohydrates, proteins and amino acids) as well as growth and total dry mass displayed species and nitrogen dose dependency. Secondary metabolites, namely, phycobilins (contents and fractions) and lipids (contents and fractions) were also variably altered in the studied organisms. Three strains of cyanobacteria were isolated, purified and identified using the morphological approach and confirmed using 16S r- RNA. Namely, ...
Source: Biocatalysis and Agricultural Biotechnology - February 13, 2020 Category: Biotechnology Source Type: research

l-arginine amidinohydrolase by a new streptomyces isolate: Screening and statistical optimized production using response surface methodology
Publication date: Available online 9 February 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Mohamed Abdelraof, Mostafa M. Abo Elsoud, Mohsen Helmy Selim, Amany Ahmed Hassabo AnisAbstractl-arginine amidinohydrolase has been reported as a powerful anticancer agent due to its mediating l-arginine starvation. The aim of this study was to screen a pool of 30 actinomycetes belonging to the species Streptomyces in order to select the potent argininolytic one. Streptomyces strains isolated from soil were firstly functional screened based on their argininolytic capacities by a qualitative assay based on a pH ind...
Source: Biocatalysis and Agricultural Biotechnology - February 11, 2020 Category: Biotechnology Source Type: research

Application of enzyme cocktails from Indonesian isolates to corncob (Zea mays) waste saccharification
Publication date: Available online 9 February 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): One Asmarani, Artati Dian Pertiwi, Ni Nyoman Tri PuspaningsihAbstractHigh contents of cellulose and hemicellulose of corncob waste makes it suitable as a raw material for sugar saccharification that can be used as sugar source for bioethanol fermentation. However, the presence of lignin inhibits the complete sugar conversion, necessitating pretreatment of the corncob material. Therefore, our study aimed to introduce a new pretreatment method for corncob to minimize lignin contents, hydrolyze it using an enzyme co...
Source: Biocatalysis and Agricultural Biotechnology - February 11, 2020 Category: Biotechnology Source Type: research

Metabolite profiling of Artemisia carvifolia Buch transgenic plants and estimation of their anticancer and antidiabetic potential
Publication date: Available online 10 February 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Erum Dilshad, Hammad Ismail, Mubarak Ali Khan, Rosa Maria Cusido, Bushra MirzaAbstractDiabetes and cancer are common diseases worldwide with terrific effect on human health. In the present study, a high valued medicinal plant Artemisia carvifolia Buch was subjected for evaluation of anticancer and antidiabetic potential. Previously produced rolB and rolC gene transgenic plants of A. carvifolia were also compared with the wild type plant for a differential count of cytotoxicity and antidiabetic activity. Lowest I...
Source: Biocatalysis and Agricultural Biotechnology - February 11, 2020 Category: Biotechnology Source Type: research

Antimicrobial activity of biosurfactants produced by actinomycetes isolated from rhizosphere of Sidoarjo mud region
Publication date: Available online 9 February 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Achmad Arifiyanto, Tini Surtiningsih, Ni'matuzahroh, Fatimah, Dyah Agustina, Nur Hidayatul AlamiAbstractA unique location with a unique environment attracted many researchers to explore bacteria as an isolate collection especially for actinomycetes group because of the potential of their antimicrobial metabolites. Information on antimicrobial activity by Streptomyces from the Sidoarjo mud area is limited. Biosurfactant was also one of the metabolites produced by the group of actinomycetes. Biosurfactant screening...
Source: Biocatalysis and Agricultural Biotechnology - February 10, 2020 Category: Biotechnology Source Type: research

Nanoemulsion of Capsicum fruit extract as an eco-friendly antimicrobial agent for production of medical bandages
Publication date: January 2020Source: Biocatalysis and Agricultural Biotechnology, Volume 23Author(s): Mehrez E. El-Naggar, Rana A. Soliman, Osama M. Morsy, Mohamed S. Abdel-AzizAbstractThe utilization of natural resources for cotton fabrics treatments is very necessitous in order to reduce the chemicals that are used and also have a very great harm to humans and the environment. The literature studies describe the utilization of pepper horns in many different applications such as drugs and agricultural fields, etc.,. However, there is no information about the utilization of pepper horn extracts in its nanoemulsion form to...
Source: Biocatalysis and Agricultural Biotechnology - February 8, 2020 Category: Biotechnology Source Type: research

Eco-physiological responses of desert and riverain legume plant species to extreme environmental stress
Publication date: Available online 7 February 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Zainab G. Ahmed, Usama Radwan, Magdi A. El-SayedAbstractDrought and heat events frequency and severity are expected to increase in the near future as responses to global warming, influencing crops productivity and human diet as result in the increasing soil aridity and area affected by drought. It is becoming increasingly important to find new crop plants or genotypes of crops that have adaptation strategies to water loss at extreme arid conditions. It was hypothesized that growth and development of plants are af...
Source: Biocatalysis and Agricultural Biotechnology - February 8, 2020 Category: Biotechnology Source Type: research

The production of β-mannanase from Kitasatospora sp. strain using submerged fermentation: Purification, characterization and its potential in mannooligosaccharides production
This study aimed to purify, characterize and evaluate the potential of this strain in the production of mannooligosaccharides using mannan polymer. The enzyme was produced by submerged fermentation of a medium contains locus bean gum as a carbon source. The crude mannanase was subjected to polyethylene glycol precipitation and ion exchange chromatography. The completion of the purification process was confirmed by SDS-PAGE and purified of enzyme characterization were investigated, analysis hydrolysis product was conducted by TLC. The enzymes exhibited the activity of 37.0 U/mL. A purification factor of 1.4-fold was achieve...
Source: Biocatalysis and Agricultural Biotechnology - February 8, 2020 Category: Biotechnology Source Type: research

Optimization of enzymatic hydrolysis for acid pretreated date seeds into fermentable sugars
Publication date: Available online 7 February 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Hekma Salem Hasan Ba Hamid, Ku Syahidah Ku IsmailAbstractOne of the issues in the Middle East is that tons of date palm fruit waste are discarded by the date processing industries daily. Open burning to dispose agricultural residues can create environmental problems. To mitigate this issue, it is desirable to evaluate the potentials of the date palm wastes, such as date seeds, to be converted into value-added products. Date seeds were found to contain 27.34% lignin, 20.63% cellulose and 13.49% hemicellulose which...
Source: Biocatalysis and Agricultural Biotechnology - February 8, 2020 Category: Biotechnology Source Type: research

Potential insecticidal activity of Sarocladium strictum, an endophyte of Cynancum acutum, against Spodoptera littoralis, a polyphagous insect pest
Publication date: Available online 8 February 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Ashraf S.A. El-Sayed, Ahmed H. Moustafa, Hussein A. Hussein, Aly A. El-Sheikh, Samah N. El-Shafey, Nahla A.M. Fathy, Gamal A. EnanAbstractSpodoptera littoralis has been recognized as the major destructive cause of various economic crops in Egypt. Chemical insecticides have been frequently used, however, the development of insecticidal resistance is the current challenge, thus searching for novel ecofriendly biocontrol agents is the prospective challenge. Fungal endophytes of plants have been recognized as a reper...
Source: Biocatalysis and Agricultural Biotechnology - February 8, 2020 Category: Biotechnology Source Type: research

Antioxidant capacity and phytochemical characterization of Spathodea campanulata growing in different climatic zones in Brazil
This study reveals that the flowers and leaves of S. campanulata present substances with antioxidant potential, as noted in the antioxidant tests and phytochemical screening. Thus, Spathodea campanulata can be considered a good source of antioxidants independent of the occurrence of the individual in different climatic regions of Brazil.Graphical abstract (Source: Biocatalysis and Agricultural Biotechnology)
Source: Biocatalysis and Agricultural Biotechnology - February 8, 2020 Category: Biotechnology Source Type: research

Bioconversion of agricultural waste hydrolysate from lignocellulolytic mold into biosurfactant by Achromobacter sp. BP(1)5
This study aims to utilize lignocellulose waste from rice straw and corn cobs for biosurfactant production by Achromobacter sp. BP(1)5. Rice straw and corn cobs were hydrolyzed using Penicillium citrinum H9 4% (v/v) for 6 days. Sugar content was analyed using the Somogyi-Nelson method with UV–Visible spectrophotometer. Biosurfactants were produced in synthetic mineral water by adding hydrolysate sugar from rice straw and corn cobs for 7 days and evaluated through measurement of surface tension and emulsification activity. Achromobacter's biosurfactant crude extracts were characterized by critical micelle concentratio...
Source: Biocatalysis and Agricultural Biotechnology - February 8, 2020 Category: Biotechnology Source Type: research

Substitution of commercial feed with phytase-fermented rice bran and turmeric flour to increase EPA, DHA, and protein depositions in broiler meat
Publication date: Available online 8 February 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Muhammad A. Al-Arif, S.H. Warsito, Muhamad Amin, Mirni LamidAbstractRice bran is a potential ingredient for broiler chicken feed due to chea and high unsaturated oil content. However, the inclusion of rice bran also has anti-nutritional factors in the form of phytic acid. Thus, this study aimed to investigate the effect of commercial feed substitution with phytase-fermented rice bran and turmeric flour toward eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), crude protein, and crude fat deposition in broil...
Source: Biocatalysis and Agricultural Biotechnology - February 8, 2020 Category: Biotechnology Source Type: research

The impact of nitrogen concentrations on production and quality of food and feedd supplements from three cyanobacteria and potential application in biotechnology
Publication date: Available online 6 February 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Ahmed Issa, E.F. Ali, R. Abdel-Basset, M.F. Awad, A.M. Ebied, S.A. HassanAbstractPrimary metabolites (carbohydrates, proteins and amino acids) as well as growth and total dry mass displayed species and nitrogen dose dependency. Secondary metabolites, namely, phycobilins (contents and fractions) and lipids (contents and fractions) were also variably altered in the studied organisms. Three strains of cyanobacteria were isolated, purified and identified using the morphological approach and confirmed using 16S r- RNA...
Source: Biocatalysis and Agricultural Biotechnology - February 8, 2020 Category: Biotechnology Source Type: research

Combination treatment of MCF-7 spheroids by Pseudomonas aeruginosa HI1 levan and cisplatin
This study aimed to evaluate the cytotoxicity of levan as a natural biopolymer alone and in combination with cisplatin. Consequently, honey isolate NRCA, Pseudomonas aeruginosa, recorded promising levansucrase activity and levan yield. Crude levan (CL) was dialyzed to dialyze levan (DL). Crude levan showed cytotoxicity effect by 69.5%, 74% on MCF-7 at 500 and 1000 μg/ml, respectively while it has a safe effect on normal cells. Dialyzed levan increased cancer cell viability. Combination treatment of CL and cisplatin significantly reduced the IC50 of cisplatin (9.4 μM) to 5.8 μM and 3.8 μM when combined w...
Source: Biocatalysis and Agricultural Biotechnology - February 8, 2020 Category: Biotechnology Source Type: research

Enhanced textile wastewater treatment by a novel biofilm carrier with adsorbed nutrients
Publication date: Available online 5 February 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Jéssica Mulinari, Cristiano José de Andrade, Heloísa de Lima Brandão, Adriano da Silva, Selene Maria de Arruda Guelli Ulson de Souza, Antônio Augusto Ulson de SouzaAbstractThis work aimed to enhance the biodegradation of synthetic textile wastewater using pyrolyzed sludge from an effluent treatment plant of a textile industry as biofilm carrier. The control carrier was compared to a carrier supplemented with nutrients (potassium, phosphorus, nitrogen, calcium, and sulfur) that we...
Source: Biocatalysis and Agricultural Biotechnology - February 7, 2020 Category: Biotechnology Source Type: research

Mycosynthesis of anticancer drug taxol by Aspergillus oryzae, an endophyte of Tarenna asiatica, characterization, and its activity against a human lung cancer cell line
In this study, a different endophytic fungus was obtained from a particular medicinal plant, Tarenna asiatica, and was selected for Taxol production. Among 28 screened fungi, only six fungal species produced Taxol in the modified liquid medium. The novel Taxol-producing endophytic fungi were identified through morphological and molecular identification using DNA sequencing and phylogenetic tree construction as Aspergillus oryzae. The structure of Taxol obtained from A. oryzae was identified with the appropriate control using an ultraviolet–visible (UV–Vis) spectrophotometer (235 nm), thin layer chromatography...
Source: Biocatalysis and Agricultural Biotechnology - February 5, 2020 Category: Biotechnology Source Type: research

Physicochemical factors modulate regeneration and Agrobacterium-mediated genetic transformation of recalcitrant indica rice cultivars - ASD16 and IR64
Publication date: Available online 4 February 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Sathish Sundararajan, Venkatesh Rajendran, Safia Nayeem, Sathishkumar RamalingamAbstractA comprehensive study of various components of rice tissue culture media and physical parameters was carried out to characterize the factors affecting in vitro plantlet regeneration from two recalcitrant indica rice cultivars, ASD16 and IR64. The choice and concentrations of carbon sources, light/dark incubation, gelling agents, amino acid supplementation and hormone combinations in the regeneration medium is greatly influence...
Source: Biocatalysis and Agricultural Biotechnology - February 5, 2020 Category: Biotechnology Source Type: research

Statistical modelling and optimization of protease production by an autochthonous Bacillus aryabhattaiAb15-ES: A response surface methodology approach
In this study, response surface methodology (RSM) was employed for the optimization of bioprocess parameters for enhanced extracellular protease production by a native Bacillus aryabhattai Ab15-ES. Preliminary screening of various nutritional parameters by one factor at-a-time approach revealed that maltose and beef extract were the best carbon and nitrogen sources, respectively, that considerably influenced the enzyme production. The quadratic model of RSM for protease production was significant (p 
Source: Biocatalysis and Agricultural Biotechnology - February 5, 2020 Category: Biotechnology Source Type: research

Mechanisms of acid-resistant Rhodopseudomonas palustris strains to ameliorate acidic stress and promote plant growth
This study aimed to investigate the mechanisms that acid-resistant purple nonsulfur bacteria (PNSB) use to resist acidic stress; Rhodopseudomonas palustris strains TLS06, VNW02, VNW64 and VNS89 released plant growth promoting substances (PGPS) including the plant nutrients NH4+ and PO43-. All tested PNSB strains produced siderophores to solubilize PO43- from Al–P and Fe–P, either as individual or combined P sources. Siderophores were produced under both aerobic dark and microaerobic light incubating conditions. A strong positive relationship was indicated between released siderophores and released P with correl...
Source: Biocatalysis and Agricultural Biotechnology - February 2, 2020 Category: Biotechnology Source Type: research

The combined effect of formic acid and Nisin on potato spoilage
Publication date: Available online 1 February 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Ya'u Sabo Ajingi, Songsirin Ruengvisesh, Pongsak Khunrae, Triwit Rattanarojpong, Nujarin JongrujaAbstractThis research has been conducted to investigate the efficacy of formic acid in combination with Nisin against Bacillus subtilis on a potato. To our knowledge, no investigation has evaluated the antimicrobial effectiveness of formic acid in combination with Nisin against Bacillus subtilis in the prevention of potato spoilage, including color changes. Nisin and formic acid inhibited the spoilage organism at 0.01...
Source: Biocatalysis and Agricultural Biotechnology - February 2, 2020 Category: Biotechnology Source Type: research

Composition, thermal behavior and antioxidant activity of pracaxi (Pentaclethra macroloba) seed oil obtained by supercritical CO2
This study evaluated the supercritical carbon dioxide (SC–CO2) extraction of pracaxi seed oil (PSO) at different conditions of pressure (200–300 bar) and temperature (40–60 °C). The PSO was assessed for its fatty acids and triacylglycerols (TAG) compositions, total phenolic content and antioxidant activity, as well as the oxidative stability and thermal behavior. SC-CO2 extractions provided oil yields (Ye) from 12 to 42 g/100 g, which represented up to 79% of the Ye obtained with hexane (Soxhlet). The pressure was the only significant variable (p 
Source: Biocatalysis and Agricultural Biotechnology - February 2, 2020 Category: Biotechnology Source Type: research

Rubber seed oil extraction: Effects of solvent polarity, extraction time and solid-solvent ratio on its yield and quality
Publication date: Available online 1 February 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Chiazor Faustina Jisieike, Eriola BetikuAbstractTwo solvents (isopropanol and n-hexane) with different polarity were employed in oil extraction from rubber seed with the aim of determining their effects on its yield and properties. The solvent extraction process deployed through Soxhlet technique was modeled and vital parameters affecting the characteristics of the rubber seed oil (RSO) were identified and optimized by D-Optimal design. Physical and chemical characteristics of the RSO were examined. The fatty aci...
Source: Biocatalysis and Agricultural Biotechnology - February 2, 2020 Category: Biotechnology Source Type: research

Medicinal plants: Treasure trove for green synthesis of metallic nanoparticles and their biomedical applications
Publication date: Available online 30 January 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Harish Chandra, Pragati Kumari, Elza Bontempi, Saurabh YadavAbstractThe cornerstone of nanoscience and nanotechnology are nanoparticles which have immense power and functional ability in diverse fields. Nanoparticles are synthesized by physical, chemical methos but limitations are due to its toxicity. We have discussed few green synthesis routes which are eco friendly and less toxic methods, including alage, microorganisms, plants etc.. Expoiting the potential of medicinal plants, is one of the green synthesis ro...
Source: Biocatalysis and Agricultural Biotechnology - February 1, 2020 Category: Biotechnology Source Type: research

Green route for the synthesis of zinc oxide nanoparticles from Melia azedarach leaf extract and evaluation of their antioxidant and antibacterial activities
Publication date: Available online 31 January 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Kayal Vizhi Dhandapani, Devipriya Anbumani, Arumugam Dhanesh Gandhi, Purandaradas Annamalai, Bala Sundaram Muthuvenkatachalam, Purusothaman Kavitha, Babujanarthanam RanganathanAbstractZinc oxide nanoparticles (ZnO NPs) were synthesized using Melia azedarach leaf extract with zinc nitrate as initiating material. Synthesized nanoparticles shows the Ultra Violet – Visible (UV–Vis) Spectroscopy absorption peak at 372 nm which is one of the distinct features of ZnO NPs. Fourier Transform Infrared (FTIR) ...
Source: Biocatalysis and Agricultural Biotechnology - February 1, 2020 Category: Biotechnology Source Type: research

Pistacia vera L. genotypes; a potential rival for UCB-1 rootstock for cultivating under salt stress conditions
In conclusion, the studied rootstocks can be ordered based on their tolerance to salinity as the following: UCB-1 = Akbari > Ahmad-Aghaee > Italiyayi > Ghazvini > Badami. (Source: Biocatalysis and Agricultural Biotechnology)
Source: Biocatalysis and Agricultural Biotechnology - January 29, 2020 Category: Biotechnology Source Type: research

Evaluation on biodiesel cold flow properties, oxidative stability and enhancement strategies: A review
Publication date: Available online 28 January 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Chee Bing Sia, Jibrail Kansedo, Yie Hua Tan, Keat Teong LeeAbstractPoor cold flow properties of biodiesel especially those that are composed mainly of saturated fatty acids is one of the major drawbacks faced by most biodiesel manufacturers. During winter or cold weather, the biodiesel tend to solidify which clogs fuel lines, filters and injectors that lead to engine operability problems. As it limits biodiesel marketability, it is desirable to improve these properties. Literatures have shown that there are numer...
Source: Biocatalysis and Agricultural Biotechnology - January 29, 2020 Category: Biotechnology Source Type: research

Maximization of xylanase production by Aureobasidium pullulans using a by-product of rice grain milling as xylan source
In conclusion, this study allowed the sustainable use of a by-product of rice grain milling, which could also contribute to reduce the costs of submerged cultivation. (Source: Biocatalysis and Agricultural Biotechnology)
Source: Biocatalysis and Agricultural Biotechnology - January 26, 2020 Category: Biotechnology Source Type: research

Separation and partial purification of collagenolytic protease from peacock bass (Cichla ocellaris) using different protocol: Precipitation and partitioning approaches
Publication date: Available online 24 January 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Vagne de Melo Oliveira, Márcia Nieves Carneiro da Cunha, Caio Rodrigo Dias Assis, Juanize Matias da Silva Batista, Thiago Pajeú Nascimento, Juliana Ferreira Santos, Carolina de Albuquerque Lima, Daniela de Araújo Viana Marques, Ranilson de Souza Bezerra, Ana Lúcia Figueiredo PortoAbstractThis comparative study provides a useful protocol for the separation and partial purification of collagenolytic proteases obtained from peacock bass, by using precipitation and partitioning. In the pre...
Source: Biocatalysis and Agricultural Biotechnology - January 26, 2020 Category: Biotechnology Source Type: research

Assessment of chemical changes and skin penetration of green Arabica coffee beans biotransformed by Aspergillus oryzae
Publication date: Available online 25 January 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Filipe Soares Bertges, Maria da Penha Henriques do Amaral, Mirian Pereira Rodarte, Maria José Vieira Fonseca, Orlando Vieira Sousa, Fernanda Maria Pinto Vilela, Maria Silvana AlvesAbstractGreen coffee beans (GCB) (Coffea arabica L.) contain phenolic compounds with proven antioxidant capacity. GCB fermentation by Aspergillus oryzae was focused on the biotransformation of phenolic compounds into smaller molecules targeting a greater skin penetration. GCB was fermented under solid state for 24, 36, and 48 h...
Source: Biocatalysis and Agricultural Biotechnology - January 26, 2020 Category: Biotechnology Source Type: research

Changes in rice bran bioactives, their bioactivity, bioaccessibility and bioavailability with solid-state fermentation by Rhizopus oryzae
This study has been carried out to examine the effect of SSF by Rhizopus oryzae on the bioactive content, bioactivity, bioaccessibility and bioavailability of 4 different varieties of rice bran. In vitro digestion with dialysis was carried out to assess the bioavailability and bioaccessibility of rice bran bioactives. Methanolic extracts and digested fractions of fermented and unfermented rice brans were analyzed for total phenolic (TPC), flavonoid (TF), carotenoid (TC), and total anthocyanin content (TAC). Additionally, antioxidant activity, anti-inflammatory property and the anti-diabetic property was also evaluated. The...
Source: Biocatalysis and Agricultural Biotechnology - January 24, 2020 Category: Biotechnology Source Type: research

In silico and in vitro comparison of nicotinamide adenine dinucleotide phosphate dependent xylose reductase rossmaan fold in Debaryomycetaceae yeast family
This study explore the in silico and in vitro comparative analysis of cofactor NADP binding mechanism in rossmann fold of isolated M. caribbica and other xylose fermenting Debaryomycetaceae family yeast. The rossmaan fold analysis of M. caribbica and Debaryomycetaceae family of yeast revealed, xylose fermenting organisms Scheffersomyces stipitis, Debaryomyces hansenii, Debaryomyces nepalensis, Candida parapsilosis, Candida maltose has divergence structure of rosmann fold. Whereas M. caribbica and Calamus tenuis has unique structure of rossmann fold. Also, the identified rossmann fold of Debaryomycetaceae family yeast and i...
Source: Biocatalysis and Agricultural Biotechnology - January 23, 2020 Category: Biotechnology Source Type: research

Supplementation of fermented coffee-peel flour to increase high-density lipoprotein (HDL) cholesterol, docosahexaenoic acids (DHA) and eicosapentaenoic acids (EPA) deposition in tilapia fillet
This study aimed at investigating the effect of fermented coffee-peel (Coffea sp.) flour supplementation on the total cholesterol, low-density lipoprotein cholesterol (LDL-c), triglycerides, high-density lipoprotein cholesterol (HDL-c), docosahexaenoic acids (DHA), and eicosapentaenoic acids (EPA) contents in tilapia (Oreochromis niloticus) fillet. Five treatments with four replicates of each were assigned to a completely randomized design (CRD). The treatments were doses of fermented coffee-peel flour added to the commercial feed: P0 (100% commercial feed), P1 (100% commercial feed + 6% fermented coffee-peel flo...
Source: Biocatalysis and Agricultural Biotechnology - January 21, 2020 Category: Biotechnology Source Type: research

Addition of electron shuttling compounds and different pH conditions for hydrogen production by a heat-treated sludge
Publication date: Available online 21 January 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Yair A. Del Angel-Acosta, Luis H. Alvarez, Refugio Bernardo Garcia-Reyes, María Teresa Garza-González, Julián Carrillo-ReyesAbstractIn the present work, the effect of anthraquinone-2-sulfonate (AQS) and its reduced form anthrahydroxyquinone-2-sulfonate (AH2QS), and different pH values were evaluated during a dark fermentation process using heat-treated anaerobic granular sludge for hydrogen production. The highest maximum hydrogen production (1.99 mmol) was obtained by adding the reduced el...
Source: Biocatalysis and Agricultural Biotechnology - January 21, 2020 Category: Biotechnology Source Type: research

Effect of microwave heating on lipid composition, oxidative stability, color value, chemical properties, and antioxidant activity of gurum (Citrulluslanatus var. Colocynthoide) seed oil
Publication date: Available online 18 January 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Emad Karrar, Sujitraj Sheth, Wei Wei, Xingguo WangAbstractGurum (Citrulluslanatus var. Colocynthoide) seeds were treated with microwave power of 800 W for 6 min at a frequency of 2450 MHz where the inner temperature of the seeds reached 146 °C. The oil was extracted with a screw press to investigate the impact on lipid composition, oxidative stability, color value, chemical properties, and antioxidant activity of gurum seed oil. The yield of oil extraction increased from 27.6% to 35.4%. Peroxide val...
Source: Biocatalysis and Agricultural Biotechnology - January 20, 2020 Category: Biotechnology Source Type: research

Bioactive glycolipid biosurfactant from seaweed Sargassum myriocystum associated bacteria Streptomyces sp. SNJASM6
Publication date: Available online 17 January 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Anand Javee, Ramamoorthy Karuppan, Nagaraj SubramaniAbstractA potent biosurfactant (Bs) from Streptomyces sp. SNJASM6 was isolated from the seaweed Sargassum myriocystum J. Agardh. The Streptomyces sp. culture was optimized with a key ingredient for the yield of Bs production. The emulsification index in surfactants, oils, hydrocarbons were estimated by using Tween 20 (62.52 ± 0.41), Coconut oil (63.52 ± 0.19) and Xylene (62.38 ± 0.31) respectively. Subsequently, the starch and ye...
Source: Biocatalysis and Agricultural Biotechnology - January 18, 2020 Category: Biotechnology Source Type: research

Extracellular hydrolytic enzyme activities of indigenous actinomycetes on pretreated bagasse using choline acetate ionic liquid
In this study hydrolytic activities of cellulase and xylanase which produce extra-cellularly by isolated actinomycetes under the presence of ChOAc were investigated. ChOAc/biomass ratio (g/g) were set up between 0.0-3.0 for pretreatment followed by hydrolysis using cellulase and xylanase that excreted when actinomycetes were grown up in pretreated bagasse successively. Act-7 was used as inoculum in saccharification, and the optimum of ChOAc/biomass ratio was as identified to be 1, which achieved high saccharification with a yield of reducing sugar 74.58%. Since the cellulase activities reduced to around 30–70% while ...
Source: Biocatalysis and Agricultural Biotechnology - January 18, 2020 Category: Biotechnology Source Type: research

Nutritional requirements for mycelial growth of three Lentinus species from the Philippines
Publication date: Available online 18 January 2020Source: Biocatalysis and Agricultural BiotechnologyAuthor(s): Rich Milton R. Dulay, Esperanza C. Cabrera, Sofronio P. Kalaw, Renato G. Reyes, Ching T. HouAbstractLentinus (Family Polyporaceae) is one of the most common fungal groups of wild edible mushrooms found in the Philippines. In our intention to determine the nutritional requirements, this paper highlights the effect of different carbon sources, nitrogen sources, carbon to nitrogen ratios, mineral salts, organic acids, phytohormones, and vitamins on the mycelia growth of Lentinus swartzii, Lentinus strigosus, and Len...
Source: Biocatalysis and Agricultural Biotechnology - January 18, 2020 Category: Biotechnology Source Type: research