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Enhanced calcium absorption in the small intestine by a phytate-removed deamidated soybean globulin preparation
Hitomi Kumagai1, Atsushi Koizumi, Akihiro Suda
1Department of Agricultural and Biological Chemistry, Nihon University, 1866 Kameino, Fujisawa-shi, Kanagawa 252-8510, Japan. kumagai@brs.nihon-u.ac.jp
Abstract:
Soybean globulins were deamidated after removing phytate using ion-exchange resins, and then hydrolyzed by digestive enzymes. The phytate-removed deamidated soybean globulins (PrDS) retained high calcium-binding ability even after the hydrolysis by digestive enzymes. PrDS and its hydrolysates enhanced calcium absorption from the small intestine when injected into the small intestine together with a calcium solution.
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