[Effect of temperature on the activity of enzymes hydrolyzing non-starch polysaccharides].
The temperature optimum and thermal stability of endo-beta-glucanase, beta-glucanase, pentosanase and cellobiase from the enzymic preparations used in the brewing industry to treat high amounts of unmalted barley--citorosemin Px, citorosemin P10x, amylosubtilin G10x and brew-n-zyme--were measured.  In order to determine the termerature optimum the enzyme activity was assayed under standard conditions.  It was found that the temperature optimum for endo-beta-glucanase of all preparations was 50 degrees, for beta-glucanase and pentosanase--40 degrees, for cellobiase--70 degrees C.  The thermal stability of endo-beta-glucanase from amylosubtilin G10x and brew-n-zyme in the aqueous solution was higher than that from ditorosemin Px and P10x.  The thermal stability of the latter preparations noticeably increased in the presence of substrates.
D005285:Fermentation; D005959:Glucosidases; D006868:Hydrolysis; D011134:Polysaccharides; D013696:Temperature
D011134:Polysaccharides; D005959:Glucosidases
Vliianie temperatury na aktivnost' fermentov, gidrolizuiushchikh nekrakhmal'nye polisakharidy