遊離型ビタミンに対する食事中のB群ビタミンの相対利用率

概要

論文の詳細を見る
The relative availability of B-group vitamins to free vitamins in a test diet consumed by Japanese college women students was determined. The subjects, 6 female Japanese college students, consumed the test diet with or without a B-group vitamin mixture for 4 consecutive days, and the B-group vitamin level in a 24-h urine sample was measured for each. The urinary excretion rates for the B-group vitamin in the test diet and the B-group vitamin mixture were calculated from the B-group vitamin intake and the urinary B-group vitamin levels. The ratio of the urinary excretion rate for each B-group vitamin in the test diet to that for the B-group vitamin mixture was determined as the relative availability. The relative availability of vitamin Bi was 67±20% (mean value ±SD and n-6), vitamin B2 was 64±16%, vitamin B6 was 73±5%, niacin was 67±19%, and pantothenic acid was 69+11% when the subjects consumed the test diet. This method can be used to simply determine the relative availability of B-group vitamins in food.
社団法人日本家政学会の論文
2008-06-15