Filtered By:
Drug: Acetic Acid
Management: Economy
This page shows you your search results in order of date.
Order by Relevance | Date
Total 17 results found since Jan 2013.
Enhanced production of acetic acid through bioprocess optimization employing response surface methodology and artificial neural network
In this study, acetic acid bacteria (AAB) are isolated from fruit waste and cow dung on the basis of acetic acid production potential. The AAB were identified based on halo-zones produced in the Glucose-Yeast extract-Calcium carbonate (GYC media) agar plates. In the current study, maximum acetic acid yield is reported to be 4.88 g/100ml from the bacterial strain isolated from apple waste. With the help of RSM (Response surface methodology) tool, glucose and ethanol concentration and incubation period, as independent variable showed the significant effect of glucose concentration and incubation period and their interaction ...
Source: Bioresource Technology - March 20, 2023 Category: Biotechnology Authors: Apoorva Upadhyay Andrey A Kovalev Elena A Zhuravleva Nidhi Pareek Vivekanand Vivekanand Source Type: research
Novel chromatographic purification of succinic acid from whey fermentation broth by anionic exchange resins
This study addresses this issue through a novel chromatographic separation using three distinct anionic resins: Amberlite IRA958 Cl (strong base anion exchange resin), Amberlite HPR 900 OH (strong base anion exchange resin) and Amberlyst A21 (week base anion exchange resin). The influence of process variables such as flow rate (0.18 BV/h, 0.42 BV/h and 0.84 BV/h), eluent concentration (1%, 5% and 10% HCl) and temperature (20, 30 and 40 °C) were investigated. The results indicated SA separation efficiency of 76.1%, 69.3% and 81.2% for Amberlyst A21, Amberlite HPR 900 OH and Amberlite IRA958 Cl, respectively. As the regener...
Source: Bioprocess and Biosystems Engineering - November 9, 2022 Category: Biomedical Engineering Authors: Philip Isaac Omwene Zehra Bet ül Öcal Meltem Ya ğcıoğlu Ahmet Karag ündüz B ülent Keskinler Source Type: research
Towards food circular economy: hydrothermal treatment of mixed vegetable and fruit wastes to obtain fermentable sugars and bioactive compounds
Environ Sci Pollut Res Int. 2022 Aug 12. doi: 10.1007/s11356-022-22486-y. Online ahead of print.ABSTRACTDue to processing activity, fruits and vegetables generate notable amounts of wastes at the processing, retail, and consumption level. Following the European goals for reducing food wastes and achieving a circular economy of resources, these biowastes should be valorized. In this work, hydrothermal hydrolysis at different conditions (temperatures, times, waste/water ratio, pH values) were tested to treat for first time; biowastes composed of mixed overripe fruits or vegetables to maximize the extraction of fermentable su...
Source: Environmental Science and Pollution Research International - August 12, 2022 Category: Environmental Health Authors: Marta S ánchez Amanda Laca Adriana Laca Mario D íaz Source Type: research
A redox-based strategy to enhance propionic and butyric acid production during anaerobic fermentation
This study investigated the selective production of volatile fatty acids (VFAs) during anaerobic mixed-culture fermentation. The experiment used chicken manure (CM) as a potential substrate to produce high added-value propionic acid and butyric acid under an alkaline environment. The conversion of CM into selective VFAs depends highly on operational conditions such as pH and redox balance. Therefore, the current experiment is designed to employ amino acid addition and develop a redox balance control method to control the final VFA profile. This study showed that 0.2-5.0% valine and threonine addition successfully enhanced ...
Source: Bioresource Technology - July 25, 2022 Category: Biotechnology Authors: Boyang Chen Parveen Fatemeh Rupani Samet Azman Raf Dewil Lise Appels Source Type: research
Reclassification of seven honey bee symbiont strains as < em > Bombella apis < /em >
Int J Syst Evol Microbiol. 2021 Sep;71(9). doi: 10.1099/ijsem.0.004950.ABSTRACTHoney bees are important pollinators of many major crops and add billions of dollars annually to the US economy through their services. Recent declines in the health of the honey bee have startled researchers and lay people alike as honey bees are agriculture's most important pollinator. One factor that may influence colony health is the microbial community. Although honey bee worker guts have a characteristic community of bee-specific microbes, the honey bee queen digestive tracts are colonized predominantly by a single acetic acid bacterium te...
Source: International Journal of Systematic and Evolutionary Microbiology - September 21, 2021 Category: Microbiology Authors: Eric A Smith Kirk E Anderson Vanessa Corby-Harris Quinn S McFrederick Audrey J Parish Danny W Rice Irene L G Newton Source Type: research
Cultivation of edible filamentous fungus Aspergillus oryzae on volatile fatty acids derived from anaerobic digestion of food waste and cow manure
In this study, the effect of pH, concentration/distribution of VFAs, nutrient supplementation, and type of waste on Aspergillus oryzae cultivation on synthetic VFAs, and actual VFAs derived from AD of food waste and cow manure were investigated. The optimal pH for A. oryzae growth on VFAs were 6 and 7 with maximum acetic acid consumption rates of 0.09 g/L.h. The fungus could thrive on high concentrations of acetic (up to 9 g/L) yielding 0.29 g dry biomass/gVFAsfed. In mixed VFAs cultures, A. oryzae primarily consumed caproic and acetic acids reaching a biomass yield of 0.26 g dry biomass/gVFAsfed (containing up to 41% prot...
Source: Bioresource Technology - June 22, 2021 Category: Biotechnology Authors: Clarisse Uwineza Amir Mahboubi Amelia Atmowidjojo Alya Ramadhani Steven Wainaina Ria Millati Rachma Wikandari Claes Niklasson Mohammad J Taherzadeh Source Type: research
Bioconversion of food waste to volatile fatty acids: Impact of microbial community, pH and retention time
This study aimed to investigate the influence of inoculum (three different sludge taken from anaerobic digestors), pH (5 & 10) and retention time on production of total volatile fatty acids (VFAs), VFA composition as well as the microbial community during anaerobic digestion of food waste. The highest VFA production was ∼22000 ± 1036 mg COD/L and 12927 ± 1029 mg COD/L on day 15 using the inoculum acclimated to food waste at pH 10 and pH 5, respectively. Acetic acid was the dominant VFA in the batch reactors with initial alkaline conditions, whereas both propionic and acetic acids were the dominant products in the a...
Source: Chemosphere - March 4, 2021 Category: Chemistry Authors: Kasra Khatami Merve Atasoy Maximilian Ludtke Christian Baresel Özge Eyice Zeynep Cetecioglu Source Type: research
