The Japanese Journal of Nutrition and Dietetics
Online ISSN : 1883-7921
Print ISSN : 0021-5147
ISSN-L : 0021-5147
Volume 21, Issue 5
Displaying 1-4 of 4 articles from this issue
  • [in Japanese]
    1963 Volume 21 Issue 5 Pages 123-142
    Published: 1963
    Released on J-STAGE: October 29, 2010
    JOURNAL FREE ACCESS
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  • S. Innami, T. Tezuka, M. Imagawa, K. Saito
    1963 Volume 21 Issue 5 Pages 143-147
    Published: 1963
    Released on J-STAGE: October 29, 2010
    JOURNAL FREE ACCESS
    It was previously reported that in both riboflavin supplemental and suboptimal, the most amounts of riboflavin in feces and the largest body weight gain were found in the sucrose plus D-sorbitol diet group than in the sucrose group and in the dextrin group.
    However, as thiamine supplementation was limited in previous experiment, a remarkable increase of body weight in the sorbitol supplemented group would riot only be due to the effect of riboflavin synthesized in intestine, but also to the effect of thiamine synthesized by intestinal bacteria.
    So, in the present investigation, thiamine was supplied sufficiently to removing the effect of synthesized thiamine.
    Moreover, to confirm the mechanism of vitamin sparing action proposed by Morgan et al., the tail cup method designed to prevent the coprophagy by Barnes et al. was examined.
    Growing rats of approximately 70 grams body weight were divided into two groups. One was riboflavin supplemented group, and the other was riboflavin deficient group.
    Each group was divided into three groups. The first was control, the second and the third were supplemented with D-sorbitol. The third was set up polyvinyl tail cup.
    As shown in Fig. 2 and Table 3, a remarkable increase of body weight was obtained by supplementing D-sorbitol to riboflavin deficient sucrose diet.
    From the results of these experiments, it was confirmed that D-sorbitol has the riboflavin sparing action in rats. However, tail cup method has not proved ideal. The cups were often taken out from the tail and the tail was easily injured, and also the cups must have been frequently set up and taken out. So, it is very unwieldy and impractical.
    It appeared that, in the tail cups group, feed intakes and body weight gains may have been decreased by those cause.
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  • Influence of Vibration upon Protein Metabolism
    Yoshitada Tadokoro
    1963 Volume 21 Issue 5 Pages 148-151
    Published: 1963
    Released on J-STAGE: October 29, 2010
    JOURNAL FREE ACCESS
    Influence of vibration (frequency 23-26/sec., breadth 1-2mm) continued for six hours every day upon protein metabolism of white rats was inspected for six weeks.
    Though the protein availability of the rats exposed to the vibration was slightly inferior and their nitrogen balance showed more positive compared with the results of the rats in normal environment, the growth of the former was retarded nearly by 8 per cent in contrast to the latter.
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  • The Essential Amino Acid Intake and the Protein score Calculated from the National Nutrition Survey of Japan in 1959 to 1961
    Nobuo Matsuno
    1963 Volume 21 Issue 5 Pages 152-154
    Published: 1963
    Released on J-STAGE: October 29, 2010
    JOURNAL FREE ACCESS
    To find out the Protein score of protein ingested by Japanese people, the essential amino acid intakes was calculated from the data of National Nutrition Survey of Japan in 1959 to 1961, with some of the data of amino acid composition of Japanese foods, recently reported.
    According to the result, the limiting amino acids were tryptophan and total of sulfur containing amino acid, and the first limiting amino acid was tryptophan. And the Protein score was 77.6, 77.8, 77.8, respectively.
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