- 著者
-
福渡 努
柴田 克己
- 出版者
- 一般社団法人 日本家政学会
- 雑誌
- 日本家政学会誌 (ISSN:09135227)
- 巻号頁・発行日
- vol.60, no.1, pp.57-63, 2009 (Released:2011-05-25)
- 参考文献数
- 16
- 被引用文献数
-
3
The relative availability of water-soluble vitamins to free vitamins in a white bread diet consumed by Japanese male and female subjects was determined. The subjects, 9 female Japanese college students in experiment 1, and 7 male Japanese and 5 female Japanese college students in experiment 2, consumed the test diet with or without a water-soluble vitamin mixture for five consecutive days, and the water-soluble vitamin levels in a 24-h urine sample were measured. The ratio of the urinary excretion rate for each water-soluble vitamin in the test diet to that in the water-soluble vitamin mixture was determined as the relative availability. The relative availability of each vitamin was as follows: B1, 55%; B2, 50%; vitamin B6, 85%; niacin, 60%; pantothenic acid, 70%; folate, 50%; biotin, 85%; and C, 95%.