2004/10/15/ · Growth of lactic acid bacteria generates acidic fermentation end products that accumulate in the extracellular environment. to achieve an initial inoculum of ∼1 × 10 8 cells/ml (0.1 OD 600 unit = ∼1 × 10 8 cells/ml for bacteria). Filter-sterilized Allcoholase II L400 (amyloglucosidase) was added to the different media at 0.06% (wt) of ...

2022/1/1/ · Technical theory of acidogenic fermentation of organic wastes for production of volatile fatty acids. The most common VFAs are acetic acid, propionic acid, and butyric acid, which result from the major metabolic pathways in acidogenic fermentation. Taking food waste acidogenic fermentation as an example, the major

2021/2/13/ · Volatile fatty acids (VFAs) are key platform chemicals used in a multitude of industries including chemicals, pharmaceuticals, food and agriculture. The current route for VFA production is petrochemical based. VFAs can be biologically produced using organic wastes as substrate, therefore directly contributing to a sustainable economy. This

2022/7/30/ · The use of shrimp waste fermentation products gives optimal results at the rate of 1.5% (R3) in the ration against feed consumption and protein consumption, the weight of eggs optimal results at

1995/5/1/ · Production of recombinant proteins in batch fermentations is described, as are variations of fermentation systems that enable continuous growth and protein production in high-cell-density, fed-batch cultures and that permit labeling of recombinant proteins with heavy atom derivatives such as selenomethionine or with stable isotopes

2024/2/20/ · Furthermore, in practice, the content of alcohols and acids is not solely determined by the components of food waste. For instance, Feng et al. (2018) found that the primary component in the food waste fermentation broth is lactic acid when the pH ranges from 3.2 to 4.5. However, when the pH is between 4.7 and 6.0, the fermentation process

2007/8/1/ · Research conducted on assessing optimal fermentation type of domestic wastewater added with molasses for the production of hydrogen in continuously-flow acidogenic reactor revealed that propionic

2015/1/1/ · The fermentation temperature is usually 28–33°C, and the pH optimal for growth and glutamic acid production is 7.0–8.0. Continuous feeding of liquid ammonium

shrimp waste fermentation products gives optimal results at the rate of 1.5% (R3) in the ration against feed consumption and protein consumption, the weight of eggs optimal results at the level of 2.0 % (R4), and the balance of protein efficiency and against the colour of the yolk optimal results at the level of 1.0% (R2). Conclusions: The use

2023/4/1/ · Yen and Brune [88] found that the optimal C/N ratio for co-digestion of algal sludge and wastepaper was within the range of 20–25. Zhang et al. [89] observed that the C/N ratio of 15.8 was optimal when co-digesting food waste with cattle manure under mesophilic conditions. The C/N ratio represents an indicator of organic waste input into a

2021/10/1/ · During food waste fermentation, the addition of biogas slurry promoted the production of lactic acid because it increased the pH values, maintained low OPR, prompted microbial diversity, and enriched functional microorganisms. A proper dose of industrial biogas slurry can increase the lactic acid yield to 0.42 g/g VS added. This result provides

Optimal Fermentation of Artemisia annua Residues and Its AAR increased the Haugh unit and decreased the feed-to-egg ratio. Collectively, it is concluded that ... great waste of the active ...

2021/9/3/ · Abstract The hydrothermolysis variables temperature (150–210 °C) and time (10–20 min) were assessed to improve hydrolysis efficiency of brewery spent grain (BSG) for renewable energy generation. The intensification of the pretreatment was expressed by the severity variation (2.8–4.5) and the process was optimized with methane production of

2023/8/29/ · 4 Economic Implications of Bioethanol Recovery and Dehydration Techniques. The selection of bioethanol dehydration is influenced by the capacity of the fermentation unit. Batch extractive distillation, pervaporation, or adsorption are suitable for producing low volumes of bioethanol.

The PHBV content in the sludge reached 65.5%, with 47.8% (mol-C based) of HV unit content, and the corresponding polyhydroxyalkanoates yield per litre of acclimated sludge was 1.44 g/L. This was the first optimal PHBV biosynthesis reported by using activated sludge as the microbe and sludge fermentation liquid as the carbon source.