Phyticacid (myoinositolhexa-phosphoricacid,IP6)is the major phosphorus storage compound of most seeds and cereal grains ,it may account for more than70%of the total phosphorus. Phytic acid has a strong ability to chelate multivalent metal ions, specially zinc, calcium and iron. The binding can result in very insoluble salts with poor bioavailability of minerals (Rhou&Erdman, 1995). Besides its well-known negative properties IP6, by complexing iron, may bring about a favorable reduction in the formation of hydroxyl radicals in the colon (Graf & Eaton, 1993), also positive eect against carcinogenesis have been shown with in vitro cell culture systems, mice, rats and guinea pigs, but the mechanism of action is not understood (Harland & Morris,1995).
Because of the numerous health bene®ts of dietary ®ber, the consumption of brans from various cereal grains is increasing. The phytic acid is associated with brans;some branscancontainover5%phyticacid.As a consequence, greater consumption of phytic acid has resulted from increased consumption of high ®bre
Phyticacid (myoinositolhexa-phosphoricacid,IP6)is the major phosphorus storage compound of most seeds and cereal grains ,it may account for more than70%of the total phosphorus. Phytic acid has a strong ability to chelate multivalent metal ions, specially zinc, calcium and iron. The binding can result in very insoluble salts with poor bioavailability of minerals (Rhou&Erdman, 1995). Besides its well-known negative properties IP6, by complexing iron, may bring about a favorable reduction in the formation of hydroxyl radicals in the colon (Graf & Eaton, 1993), also positive eect against carcinogenesis have been shown with in vitro cell culture systems, mice, rats and guinea pigs, but the mechanism of action is not understood (Harland & Morris,1995).Because of the numerous health bene®ts of dietary ®ber, the consumption of brans from various cereal grains is increasing. The phytic acid is associated with brans;some branscancontainover5%phyticacid.As a consequence, greater consumption of phytic acid has resulted from increased consumption of high ®bre
การแปล กรุณารอสักครู่..