Increased Conversion Ratio of Tryptophan to Niacin in Severe Food Restriction
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概要
- 論文の詳細を見る
The effect of food restriction on the conversion ratio of tryptophan to niacin was investigated, because it is known that the conversion ratio is influenced by nutritional factors. A 20% casein diet was fed to rats ad libitum (control), 1/2 the food of the control. 1/4 the food of the control, or starved for 9 days, and urine samples were collected to measure the urinary excretion of such tryptophan metabolites as kynurenic acid, xanthurenic acid, and nicotinamide. The conversion ratio in the 1/2, 1/4, or starving group increased at day 1 of the experiment, but returned to the original value from day 2. Only in the starving group did the conversion ratio extremely increase from day 6 to day 9, being about 5-times higher than that of the original value on day 9. The possible mechanism by which the conversion ratio increased during food restriction is discussed.
- 社団法人日本農芸化学会の論文
- 1998-03-23
著者
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SHIBATA Katsumi
Department of Food Science and Nutrition, School of Human Cultures, The University of Shiga Prefectu
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Shibata Katsumi
Department Of Food Science And Nutrition School Of Human Cultures The University Of Shiga Prefecture
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Kondo Takako
Department of Human Health Science, Faculty of Human Sciences, Osaka International University for Wo
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Kondo Takako
Department Of Anatomy School Of Medicine Fujita-gakuen Health University
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MIKI Atsuyo
Department of Human Health Science, Faculty of Human Sciences, Osaka International University for Wo
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Miki Atsuyo
Department Of Human Health Science Faculty Of Human Sciences Osaka International University For Wome
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Shibata Katsumi
Department Of Human Health Science Faculty Of Human Sciences Osaka International University For Wome
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Kondo Takako
Department Of Human Health Science Faculty Of Human Sciences Osaka International University For Wome
関連論文
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