BACKGROUND The production of bioethanol from lignocellulose hydrolysates requires a robust, D-xylose-fermenting and inhibitor-tolerant microorganism as catalyst. The purpose of the present work was to develop such a strain from a prime industrial yeast strain, Ethanol Red, used for bioethanol production. RESULTS An expression cassette containing 13 genes including Clostridium phytofermentans ...

Abstract The pretreatment of lignocellulosic material performed to improve substrate’s susceptibility enzymatic hydrolysis is usually accompanied by reactions leading the synthesis compounds that inhibit metabolic activity microorganisms. Their toxicity main obstacle successful bioconversion hydrolysates. identification these inhibitors and choice optimal detoxication method are crucial for imp...

Abstract Purpose Use of spent coffee grounds (SCG) in horticulture has deleterious effects on plant health and yields, suggesting that processing SCG is necessary prior to field application. To this end, two products an based biorefinery were investigated: primary chars from the hydrothermal carbonisation (HTC) enzymatic protein hydrolysates. Methods Primary produced under various HTC regimes r...

Sea products are valuable resources of natural substances such as lipids, polysaccharides, enzymes, vitamins, and proteins. In this issue, a variety of fish proteases (trypsin, alcalase, etc.) have been characterized and sometimes purified. Many of these enzymes display potentially interesting new biochemical properties for industrial applications. Their potential adequacy for biotechnological ...

The microbiological, rheological, and sensory properties of set-type yoghurt were investigated in the presence camel cow casein hydrolysates produced by action trypsin enzymes. significantly decreased fermentation coagulation time production. rate pH decrease was (p < 0.05) higher samples treated with hydrolysate comparison control samples. Compared control, cell growth culture increased sup...

PĘksa A., Miedzianka J. (2014): Amino acid composition of enzymatically hydrolysed potato protein preparations. Czech J. Food Sci., 32: 265–272. We determine the effects of the technology of obtaining potato protein preparation and of different variants of enzymatic hydrolysis on the chemical and amino acid compositions of the hydrolysates obtained. Potato protein concentrates obtained through ...

BACKGROUND The main objective of this experiment was optimal use of none edible protein source to increase nutritional value of production with high biological function, including antioxidant activity. METHODS Sheep visceral (stomach and intestine) was used as substrate. Response surface methodology (RSM) was used to optimize hydrolysis conditions for preparing protein hydrolysate from the sh...

Growth rate is dependent upon adequate provision of amino acids especially in newly-hatched fish which experience very high growth rate. The replacement of a fraction of protein content by partially hydrolyzed (pre-digested) proteins was carried out and the digestive capacities and performances of larval/juvenile spotted wolffish (Anarhichas minor) were measured. The goal of this study was to v...