منابع مشابه
Standardization of different levels of lactose hydrolysis in the preparation of lactose hydrolyzed yoghurt
Yoghurt is a unique fermented dairy product, consumed throughout the world and the trend ofconsumption is increasing due to its unique health benefits. Yoghurt mix is often supplemented with MSNF(milk solids-non-fat), it may contain as much as 5.7% unhydrolysed lactose. Lactose can be hydrolysed withan enzyme lactase. Deficiency of lactase in lactose-intolerant persons leads to gastrointestinal...
متن کاملHydrolysis of lactose by immobilized microorganisms.
Cells of Lactobacillus bulgaricus, Escherichia coli, and Kluyveromyces (Saccharomyces) lactis immobilized in polyacrylamide gel beads retained 27 to 61% of the beta-galactosidase activity of intact cells. Optimum temperature and pH and thermostability of these microbial beta-galactosidases were negligibly affected by the immobilization. Km values of beta-galactosidase in immobilized cells of L....
متن کاملPectin hydrolysis by certain salt-tolerant yeasts.
During the brine fermentation of cucumbers for pickles, Bell et al. (1950) have reported finding a fungal-type polygalacturonase-like enzyme which splits the polymer linkage of pectic substances. They definitely established this enzyme with the softening type of spoilage of salt-stock pickles brined under commercial conditions. With the identity of the softening agent known, an inquiry into its...
متن کاملMechanism of the Fermentation of Lactose by Yeasts
There are two fundamental theories concerning the fermentation of disaccharides. One presupposes an “indirect” and the other a “direct” fermentation. A theory proposed by Fischer (l-3) was that no compound sugar is fermented directly as such, but that the compound sugar is cleaved by appropriate hydrolytic enzymes into its monose constituents, the latter actually being fermented as such. Briefl...
متن کاملRapid method for detection of urea hydrolysis by yeasts.
A method is described for the rapid detection of urea hydrolysis by yeasts, using the Berthelot color reaction. The results could be determined within 30 to 50 min with this method, compared with 8 to 72 h usually required with Christensen urea agar.
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ژورنال
عنوان ژورنال: Journal of Medical Microbiology
سال: 1977
ISSN: 0022-2615,1473-5644
DOI: 10.1099/00222615-10-3-373