Enzymes with high specificity and catalytic efficiency play a crucial role in the fermentation process. The activities of five key enzymes, i.e., protease, AK, F 420 , α-glucanase, and CoA-T, were measured on day 3, 6, and 9 to compare the catalytic efficiency of Fe 3 O 4 (0.2413), MOF-808(0.5), and Fe 3 O 4 @MOF-808 1.5 (0.5) ( Fig. 7 ).
Jan 8, 2021 · Therefore, the study presented here proposed a strategy for enhancing the ethanol production from anaerobic fermentation of organic wastes via stimulating ATP synthase of ethanol-producing Fe (III)-reducing bacteria with magnetite.
Aug 3, 2022 · The high relative abundance of Lactobacillus, Olsenella, and Bifidobacterium played positive role in achieving ethanol, butyrate, and lactate production among various metabolic pathways. The results revealed the pH value together with OLR was the valid parameter to affect product formation and composition during FVW fermentation.
Mar 1, 2024 · A novel anaerobic fermentation paradigm with yeast inoculation was proposed to achieve abundant MCFAs productions from FW using in-situ produced ethanol.
Aug 21, 2023 · Polyaluminum chloride (PAC) is used widely and increasingly in wastewater treatment plants, resulting in its inevitably high production in sludge. Previous studies have indicated that the production of short-chain fatty acids (SCFAs) is inhibited by the existence of PAC in sludge anaerobic fermentation, so it is necessary to study how to promote sludge anaerobic fermentation under low
Apr 1, 2020 · Conversely, the gap in the energy recovery between the single-phase AcoD systems and two-phase AcoD systems in which the aciodgenic digesters were operated at the ethanol-type fermentation pH (4.07) further increased (Fig. 6 B), suggesting that the DIET-based syntrophic metabolism established led to a high-efficiency energy recovery.
Oct 1, 2022 · High-efficiency co-digestion of FW and mature leachate was achieved using an EGSB reactor. A high OLR up to 23.6 g COD/L/d and COD removal around 80% were obtained, giving a methane production of 5.87 ± 0.45 L/L/d. The COD-to-methane conversion rate was ranging from 74% to 87%.
Anaerobic fermentation is the widely investigated strategy for H 2 production and other value added products that has successfully integrated with photosynthetic processes towards diverse high value bio-based products. Overall, different stochastic models proposed worked out in tandem focuses a holistic biorefinery approach that carries
Nov 1, 2022 · High treatment capacity for food waste (FW) is required due to the huge amount generated worldwide. Conversion of FW to volatile fatty acids (VFAs) via anaerobic fermentation is a promising technology; however, inhibition of VFAs production could easily occur at high loadings.
Sep 19, 2017 · Conventional acetone-butanol-ethanol (ABE) fermentation coupled with gas stripping is conducted under strict anaerobic conditions. In this work, a fed-batch ABE fermentation integrated with gas stripping (FAFIGS) system using a non-strict anaerobic butanol-producing symbiotic system, TSH06, was investigated for the efficient production of butanol. To save energy and keep a high gas-stripping
Fermentation is another anaerobic (non-oxygen-requiring) pathway for breaking down glucose, one that's performed by many types of organisms and cells. In fermentation, the only energy extraction pathway is glycolysis, with one or two extra reactions tacked on at the end. Fermentation and cellular respiration begin the same way, with glycolysis.
Mar 1, 2022 · Enriching suitable fermentative products by optimizing operation conditions could effectively improve the efficiency of anaerobic digestion. In the present study, pH (5.0–6.0) and hydraulic retention time (HRT) (2 h-12 h) were regulated for volatile fatty acids (VFAs) production during glucose fermentation in acidogenic continuous stirred tank reactor (CSTR).
Jun 4, 2024 · While yeast fermentation offers significant advantages such as high efficiency, scalability, and cost-effectiveness, it also presents challenges like susceptibility to contamination, the need for
Aug 30, 2018 · Impact of osmotic and ethanol stresses are exacerbated when performing very high gravity (VHG) fermentation using media containing sugar concentration higher than 250 g L −1 sugar in order to
Mar 7, 2022 · This study demonstrated that Fe 3 O 4 simultaneously improves the total production and formation rate of medium-chain fatty acids (MCFAs) and long-chain alcohols (LCAs) from waste activated sludge (WAS) in anaerobic fermentation.