The application of ohmic heating for inulin extraction from the wet-milled and dry-milled powders of Jerusalem artichoke (Helianthus tuberosus L.) tuber
In this study, ohmic heating was applied for inulin extraction from the Jerusalem artichoke tuber (JAT). Raw materials for extraction were prepared by two different schemes comprising milling the blanched JAT slices and water mixture (wet milling) and grinding the dried JAT to be powder before mixing water (dry milling). Also, the inulin extracts were evaporated using a rotary evaporator and then spray-dried to be inulin powder. The main objectives were (1) to investigate the effects of applying ohmic heating on the extraction yield and quality of inulin extracts in comparison with conventional method and (2) to determine ...
Source: Innovative Food Science and Emerging Technologies - June 2, 2018 Category: Food Science Source Type: research
Efficient fructose production from plant extracts by immobilized inulinases from Kluyveromyces marxianus and Helianthus tuberosus.
Abstract
The enzymatic hydrolysis of poly- and oligosaccharides from plants seems like an advantageous approach for sugars production. Two inulinases producing fructose from plant oligosaccharides were isolated from yeast Kluyveromyces marxianus and plant Helianthus tuberosus. Both enzymes were immobilized on polymeric carriers by using the static adsorption approach. We could save 80.4% of the initial catalytic activity of plant inulinase immobilized on KU-2 cation-exchange resin and 75.5% of yeast enzyme activity adsorbed on AV-17-2P anion-exchange resin. After immobilization, the Km values increased 1.5...
Source: International Journal of Biological Macromolecules - April 23, 2018 Category: Biochemistry Authors: Holyavka MG, Kayumov AR, Baydamshina DR, Koroleva VA, Trizna EY, Trushin MV, Artyukhov VG Tags: Int J Biol Macromol Source Type: research
Continuously Monocropped Jerusalem Artichoke Changed Soil Bacterial Community Composition and Ammonia-Oxidizing and Denitrifying Bacteria Abundances
Xingang Zhou, Zhilin Wang, Huiting Jia, Li Li, Fengzhi Wu (Source: Frontiers in Microbiology)
Source: Frontiers in Microbiology - April 10, 2018 Category: Microbiology Source Type: research
A comparison of fast and reactive pyrolysis with insitu derivatisation of fructose, inulin and Jerusalem artichoke (Helianthus tuberosus).
Abstract
Reactive pyrolysis is a technique that provides mechanistic information by performing pyrolysis of the substrate in a sealed glass capsule at elevated temperature and pressure for relatively long time. This technique has already shown great potential for the analysis of biomass, favouring the formation of only the most thermostable compounds. In this work, both fast and reactive pyrolysis with on-line gas chromatography-mass spectrometry analysis (Py-GC/MS) are used to study fructose, inulin and Jerusalem artichoke tubers (Heliantus tuberosus). Interesting differences were found between the two sy...
Source: Analytica Chimica Acta - March 16, 2018 Category: Chemistry Authors: Mattonai M, Ribechini E Tags: Anal Chim Acta Source Type: research
Sugar yield and composition of tubers from Jerusalem Artichoke (Helianthus tuberosus) irrigated with saline waters
Biotechnology and Bioengineering,Volume 115, Issue 6, Page 1475-1484, June 2018. (Source: Biotechnology and Bioengineering)
Source: Biotechnology and Bioengineering - March 15, 2018 Category: Biomedical Science Authors: Samarthya Bhagia
,
Jorge F. S. Ferreira
,
Ninad Kothari
,
Angelica Nunez
,
Xuan Liu
,
Nildo da Silva Dias
,
Donald L. Suarez
,
Rajeev Kumar
,
Charles E. Wyman Source Type: research
Sugar yield and composition of tubers from Jerusalem Artichoke (Helianthus tuberosus) irrigated with saline waters
Biotechnology and Bioengineering, EarlyView. (Source: Biotechnology and Bioengineering)
Source: Biotechnology and Bioengineering - March 15, 2018 Category: Biomedical Science Source Type: research
Sugar Yield and Composition of Tubers from Jerusalem Artichoke (Helianthus tuberosus) Irrigated with Saline Waters
This article is protected by copyright. All rights reserved (Source: Biotechnology and Bioengineering)
Source: Biotechnology and Bioengineering - February 24, 2018 Category: Biomedical Science Authors: Samarthya Bhagia, Jorge F.S. Ferreira, Ninad Kothari, Angelica Nunez, Xuan Liu, Nildo Dias, Donald L. Suarez, Rajeev Kumar, Charles E. Wyman Tags: Article Source Type: research
Vulnerability of photosynthesis and photosystem I in Jerusalem artichoke (Helianthus tuberosus L.) exposed to waterlogging
In conclusion, Jerusalem artichoke is a waterlogging sensitive species in terms of photosynthesis and PSI vulnerability. Consistently, tuber yield was tremendously reduced by waterlogging, confirming waterlogging sensitivity of Jerusalem artichoke. (Source: Plant Physiology and Biochemistry)
Source: Plant Physiology and Biochemistry - February 18, 2018 Category: Biochemistry Source Type: research
Effect of soil salinity on fructan content and polymerization degree in the sprouting tubers of Jerusalem artichoke (Helianthus tuberosus L.)
Publication date: April 2018 Source:Plant Physiology and Biochemistry, Volume 125 Author(s): Rui Luo, Xiaoyang Song, Ziwei Li, Aiqin Zhang, Xiufeng Yan, Qiuying Pang In addition to their role as reserve carbohydrates, fructans have been recognized as compounds that are protective against adverse environments. The aim of this study was to identify changes in the content and the degree of polymerization (DP) of fructan in sprouting tubers of Jerusalem artichoke under salt stress. Fructan was extracted from tubers at 1, 3, 5, and 7 days after planting in sandy loam soil irrigated with NaCl solution. Fructan accumulati...
Source: Plant Physiology and Biochemistry - February 3, 2018 Category: Biochemistry Source Type: research
Microbial production of mannitol by Lactobacillus brevis 3 ‐A5 from concentrated extract of Jerusalem artichoke tubers
Biotechnology and Applied Biochemistry, EarlyView. (Source: Biotechnology and Applied Biochemistry)
Source: Biotechnology and Applied Biochemistry - December 26, 2017 Category: Biochemistry Source Type: research
Characterization of endophytic bacteria and their response to plant growth promotion in Helianthus tuberosus L
Publication date: Available online 16 December 2017 Source:Biocatalysis and Agricultural Biotechnology Author(s): Sumolnat Khamwan, Sophon Boonlue, Nuntavun riddech, Sanun Jogloy, Wiyada Mongkolthanaruk The endophytic bacteria isolated from the leaves, stems, tubers and roots of Helianthus tuberosus L. (Jerusalem artichoke) were studied and characterized. The isolated endophytes were clustered by amplified ribosomal DNA restriction analysis (ARDRA) technique and identified by 16S rRNA sequencing to demonstrate bacteria diversity, mainly in Bacillus, Pseudomonas, Stenotrophomonas, Microbacterium, Curtobacterium. The ...
Source: Biocatalysis and Agricultural Biotechnology - December 17, 2017 Category: Biotechnology Source Type: research
Direct fermentation of Jerusalem artichoke tuber powder for production of l-lactic acid and d-lactic acid by metabolically engineered Kluyveromyces marxianus
Publication date: Available online 5 December 2017 Source:Journal of Biotechnology Author(s): Jung-Hoon Bae, Hyun-Jin Kim, Mi-Jin Kim, Bong Hyun Sung, Jae-Heung Jeon, Hyun-Soon Kim, Yong-Su Jin, Dae-Hyuk Kweon, Jung-Hoon Sohn An efficient production system for optically pure l- and d-lactic acid (LA) from Jerusalem artichoke tuber powder (JAP) was developed by metabolic engineering of Kluyveromyces marxianus. To construct LA-producing strains, the ethanol fermentation pathway of K. marxianus was redirected to LA production by disruption of KmPDC1 and expression of l- and d-lactate dehydrogenase (LDH) genes deriv...
Source: Journal of Biotechnology - December 6, 2017 Category: Biotechnology Source Type: research
Inulin from Jerusalem artichoke tubers alleviates hyperlipidemia and increases abundance of bifidobacteria in the intestines of hyperlipidemic mice
Publication date: January 2018 Source:Journal of Functional Foods, Volume 40 Author(s): Qiuhong Yu, Jianjing Zhao, Zhikun Xu, Yongwen Chen, Tianyun Shao, Xiaohua Long, Zhaopu Liu, Xiumei Gao, Zed Rengel, Jianfeng Shi, Jing Zhou Hyperlipidemia is currently rising at an alarming rate in human populations around the world, and new innovative ways of alleviating hyperlipidemia are needed. The effects of Jerusalem artichoke inulin on hyperlipidemia and the intestinal microflora in mice fed high-fat diet (HFD) were investigated. Inulin-treated HFD-fed hyperlipidemic mice had decreased serum lipid hepatic triglycerid...
Source: Journal of Functional Foods - November 11, 2017 Category: Nutrition Source Type: research
Antioxidant and α-glucosidase inhibitory ingredients identified from Jerusalem artichoke flowers.
In this study, we report the first detailed phytochemical study on JA flowers, which yielded 21 compounds. Compound 4 was identified as a major water-soluble yellow pigment of JA flowers. In addition, the methanol extract of JA flowers and the isolates were evaluated for their antioxidant and α-glucosidase inhibitory activities. Among the tested compounds, compound 13 showed the strongest ABTS(+) free radical scavenging activity with SC50 value of 2.30 ± 0.13 μg/mL, and compound 6 showed most potent α-glucosidase inhibitory activity with inhibition rate of 60.0% ± 10.3% at a concentration of 250 μg/mL. Results ...
Source: Natural Product Research - November 9, 2017 Category: Biochemistry Authors: Wang YM, Zhao JQ, Yang JL, Idong PT, Mei LJ, Tao YD, Shi YP Tags: Nat Prod Res Source Type: research
