Aug 17, 2023 · Fed-batch fermentation of L. casei led to a 69.24% increase in LA production and 11% increase in yield . In LA production from food waste by L. pentous, fed-batch mode further increased LA concentration from 106.7 g/L to 157.0 g/L, although the overall productivity decreased from 3.09 g/(L·h) to 2.0 g/(L·h) . Feeding strategies might have
5 days ago · The VFAs fermentation liquid obtained through ammonia distillation possessed high product purity and high COD/N ratio, which could be regarded as an excellent carbon source for denitrification. Consequently, the combination of AnMBR process and alkaline fermentation could promote robust production of VFAs from actual organic waste.
Feb 1, 2022 · Highlights. •. VFA production from different solid and liquid wastes are reviewed. •. Influential parameters for VFAs production are evaluated. •. Economical approaches are discussed for VFA production on scaleup. •. VFAs applications to produce various consumers' products are presented. Abstract.
Sep 12, 2022 · Recently, hydrogen gas is becoming the most prominent alternative fuel due to its clean and environment-friendly nature. It only delivers water as a waste product during the operation instead of emitting harmful greenhouse gases. It has a high heating value (142 MJ/kg), over 2.75 times that of other hydrocarbon-based petroleum fuels. Presently, the primary method of producing hydrogen is the
Jun 1, 2021 · Another advantage of the production of lactic acid by fermentation is the possibility of using agro-industrial residues, such as eucalyptus enzymatic hydrolysate [8], orange peel waste hydrolysate
Composting or aerobic fermentation is an effective way to treat agricultural waste and produce organic fertilizer. Improving the application rate of organic fertilizer in soil needs time to reduce dependence on chemical fertilizers.
Jun 15, 2021 · As a result of continuous VFA separation, hydrogen yields increased from 17.3 mL H 2 /g VS fermenter to 33.68 mL H 2 /g VS fermenter. Methane yields also increased from 28.94 mL CH 4 /g VS fermenter to 43.94 mL CH 4 /g VS fermenter. This represents a total increase in bio-energy yields of 77.1%.
Jan 1, 2018 · The commercial production of ethanol involves several steps: feedstock preparation, pretreatment, inoculum development, fermentation, and downstream processing. The following sections describe the unit processes involved in ethanol production, with a general process flow diagram presented in Fig. 5.4.
Oct 14, 2020 · It has now passed more than forty years since solid-state fermentation (SSF) research developments have gained importance for the scientific community. After so many years, numerous processes and equipment for SSF were studied and designed focusing on the production of different commercially relevant bioproducts such as enzymes, fermented food, such as Chinese daqu and koji, organic acids
Sep 8, 2020 · Source-sorted organic portion of municipal solid waste (bio-waste) can be fermented to lactic acid, a platform chemical widely used in the production of biodegradable polymers, green solvents, and chemicals. In the present study, fermentation of bio-waste using lactic acid producing bacterium (LAB) Lactobacillus delbrueckii was investigated. Results showed that adding 10% (v/v) of L
Aug 9, 2019 · Solid-state fermentation (SSF) is, by definition, a technology carried out in absence or near absence of free water. Therefore, it allows the use of solid materials as substrates for further biotransformation. SSF has gained attention in the last years being reported as a promising eco-technology that allows obtaining bioproducts of industrial interest using solid biomass (wastes and by
Jun 5, 2021 · Organic acids, e.g, citric acid, fumaric acid, lactic acid, malic acid, pyruvic acid and succinic acid, have important role in the food industry and are potential raw materials for the sustainable chemical industry. Their fermentative production based on renewable raw materials requires innovatively designed downstream processing to maintain low environmental impact and resource efficiency
Aug 25, 2023 · Upon substituting fermentative media with L-alanine increased hydrogen production was found, whereas the absence of germinant in fermenter showed decreased hydrogen production rate. 3.5. By products vs treatment efficiency. Maximization of biohydrogen production through dark fermentation becomes big challenge for pilot scale production of hydrogen.
Jan 31, 2024 · About the assay of higher H 2 production, in this experimental condition a gCaCO 3.the g −1 CHO ratio of 0.45 was obtained, which enabled operational pH stability that conditioned the predominance of metabolic pathways for hydrogen production so that considering the co-fermentation of citrus waste is recommended to maintain the pH in the
Aug 2, 2022 · It was noticed that the production was increased by 6.0% in the seeds which was inoculated by A. chroococcum as compared to the other samples. The inoculated plant also shows increment in weight of wet root by 18%, weight of dry roots by 31%, weight of wet plant as a whole by 13%, number of leafs and branches by 27% and the weight of dry plant
