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Effect of Rice Hemicelluloses on Pancreatic Lipase Activity In Vitro
Author(s) -
NORMAND FLOYD L.,
ORY ROBERT L.
Publication year - 1984
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1984.tb13252.x
Subject(s) - lipase , hemicellulose , hydrolysis , chemistry , sodium cholate , food science , biochemistry , triacylglycerol lipase , chromatography , enzyme
The influence of rice bran water‐soluble hemicellulose on hydrolysis of fat by pancreatic lipase with and without bile salts was examined in vitro. Bile salts are required for emulsification of the oil. Three of the major salts found in human bile (sodium cholate, glycocholate, and taurocholate) were tested for emulsifying properties with and without rice hemicellulose. The lipase activity decreased with increased addition of hemicellulose to the bile salt‐enzyme reaction mixture. The results suggest that rice hemicellulose affects lipase activity indirectly by rendering the bile salts less available for emulsification of the oil and subsequent hydrolysis by the lipase.