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ID 17777
Eprint ID
17777
フルテキストURL
Thumnail 86_453.pdf 1.21 MB
タイトル(別表記)
Studies on the causes of folic acid deficiency Part 2. Folic acid contents of various foods and loss of food folate by boiling
著者
原 功一 岡山大学医学部第2内科
抄録
Folic acid contents of various foods (147 items) were estimated by the microbioassay using Lactobacillus casei as the test organism. Folic acid were abundant in vegetables, fruits, fishes and the liver of animals. Nineteen foods were examined for loss of folic acid during boiling. Leaching out into the water was also examined. 20-70% of free folate was destroyed after 5 minutes and 20-90% after 15 minutes. Destruction of total folate was less than that of free folate i.e., 30% after 5 minutes and 40-60% after 15 minutes. Pteroylglutamic acid was not destroyed by boiling for 15 minutes. So the folate destroyed during boiling was considered to be other forms of folate except pteroylglutamic acid. Folic acid contents of two hospital diet in Okayayma city was estimated. Mean daily folic acid amount in the diet of hospital A was 205μg of free folate and 839.8μg of total folate. In the diet of hospital B, 305.5μg of free folate and 738.1μg total folate were present. These amounts were much more than those reported in USA and England. As to the reason why megaloblastic anemia is rare and folic acid defi ciency is so mild in Japan, abundant folic acid intake from diets, uniformity of dietary habits i.e. boiled rice as basic food, were discussed.
発行日
1974-10-30
出版物タイトル
岡山医学会雑誌
出版物タイトル(別表記)
Journal of Okayama Medical Association
86巻
9-10号
出版者
岡山医学会
出版者(別表記)
Okayama Medical Association
開始ページ
453
終了ページ
464
ISSN
0030-1558
NCID
AN00032489
資料タイプ
学術雑誌論文
オフィシャル URL
https://www.jstage.jst.go.jp/article/joma1947/86/9-10/86_9-10_453/_article/-char/ja/
関連URL
http://www.okayama-u.ac.jp/user/oma/
言語
Japanese
著作権者
岡山医学会
論文のバージョン
publisher
査読
有り
Eprints Journal Name
joma