ACTIVATION OF SOY BEAN LIPOXIDASE

The reaction mechanism of soy bean lipoxidase.

Based on their observations that the lipoxidase-catalyzed oxidation of linoleate, like autoxidation, gave primarily conjugated diene peroxides (1,2) and caused a coupled oxidation of some easily oxidizable substances, such as carotenoids (3) and antioxidants (4), Bergstrom and Holman proposed a reaction mechanism for lipoxidase catalysis. They suggested (4) that lipoxidase could cause initiatio...

The development of soy sauce from organic soy bean

Soy sauce with a high salt liquid-state fermentation process was prepared by using organic soy beans as raw material. Beidahuang organic soy bean was selected among different raw materials. Here, the best technique was determined. Firstly, the organic soy beans were soaked for 7 hours under 121°C , steamed for 15 min and mixed with the fried wheat (5:5, w/w). After inoculated with Aspergillus o...

The Activation Energy of Urea Hydrolysis Catalyzed by Soy Bean Urease

The rate of most chemical reactions increases exponentially with temperature in accordance with the Arrhenius equation. The older literature on enzyme-catalyzed reactions (for references cf. Haldane (1930), Tauber (1937)) indicates that these do not. conform, since the activation energy decreases with rise in temperature instead of being invariant. More recent studies do not confirm this genera...

Separations of soy bean inositide fractions of low partition coefficient.

The inositol-containing phosphatides of soy beans have been the subject of a number of investigations (l-7) since 1939 when Klenk and Sakai (8) first reported the presence of inositol in soy bean phosphatides. Previous work at the Northern Regional Research Laboratory (3) has shown that the alcohol-insoluble portion of soy bean phosphatides can be separated into two inositol-containing fraction...

The Reversibility of the Action of Urease of Soy Bean.