The Vitamin B_6 Content in Milk of Japanese Women

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  • ISA Yasuka
    The United Graduate School of Agricultural Science, Gifu University
  • KAITOU Akiko
    Department of Food Science, Faculty of Agriculture, Gifu University
  • HAYAKAWA Takashi
    Department of Food Science, Faculty of Agriculture, Gifu University
  • SASAKI Shouko
    Department of Food Science and Nutrition. Showa Women's University
  • SHINZAWA Kayo
    Department of Food Science and Nutrition. Showa Women's University
  • SUZUKI Kumiko
    Department of Food Science and Nutrition. Showa Women's University
  • TOTANI Masayuki
    Graduate School of Life Science, Showa Women's University
  • TSUGE Haruhito
    Department of Food Science, Faculty of Agriculture, Gifu Universit

Bibliographic Information

Other Title
  • 日本人の母乳中ビタミンB_6含量
  • ニホンジン ノ ボニュウ チュウ ビタミン B6 ガンリョウ

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Abstract

The recommended dietary allowance (RDA) of vitamin B_6 (B_6) for Japanese was formulated for the first time in the 6^<th> revised National Reference Intake in Japan. The RDA of infant is O.1mg/day in the 6^<th>revision. Milk intake of infant was calculated to be 850 ml/day in the 5^<th> revised RDA, however it was set at 750 ml/day based on investigation in the 6^<th> revised RDA. The B_6 intake of infant deeply depended on the content of B_6 in breast milk. Thus we determined the B_6 contents in breast milk of Japanese women. Milk samples were collected from 25 healthy nursing women whose infants were 2 - 5 ages in month. Total B_6 content in milk was quantified by HPLC. The average content of B_6 was 0.25 mg/l breast milk. This value was not different from those of other studies and the datum in 6^<th> revised RDA.

Journal

  • VITAMINS

    VITAMINS 78 (9), 437-440, 2004

    THE VITAMIN SOCIETY OF JAPAN

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