VITAMINS

Online ISSN : 2424-080X
Print ISSN : 0006-386X

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Volume 53, Issue 2

Displaying 1-28 of 28 articles from this issue

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Enzymatic Processes for the Production of Amino Acids

Hideaki YAMADA

Article type: Article
1979 Volume 53 Issue 2 Pages 41-53
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_41

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Effect of Thermostable Antithiamine Factors on Rats Administered with Thiamine

Fumiko HAYAKAWA, Kiku MURATA

Article type: Article
1979 Volume 53 Issue 2 Pages 55-62
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_55

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It has been known that caffeic acid and other o-diphenol compounds accelerate in vitro the decomposition of thiamine at pH 7〜7.5. The rat feeding experiments were carried out to find the activities in vivo of these thermostable antithiamine factors. The basal diet was consisted of thiamine free casein 20%, sugar 69.6%, salad oil 5.0%, salt mixture 4.0%, vitamin mixture 1.0%, choline chloride 0.1%, and DL-methionine 0.3%. The amount of thiamine administered to each rat was 40μg/day, which was given orally with the vitamin solution. The test group was given additional caffeic acid 10 times moles of thiamine or the same amount of tannic acid, or 40〜400 μg of pyrithiamine together with the basal diet. Control and test groups were pair-fed for 34〜68 days. The body weight, urinary thiamine (on the 33rd or 26th day), liver thiamine, erythrocyte transketolase activity, and thiamine pyrophosphate effect were measured for control and test groups. The results indicated that there was no significant difference in these data between the control group and the test groups of caffeic acid and tannic acid, in contrast with the difference between the control and the pyrithiamine group.

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Effect of Ascorbate 2-Sulfate Administration on Ascorbate 2-Sulfate Sulfohydrolase Activity in Guinea Pig Liver

Choten INAGAKI, Chigusa NISHIMURA, Emiko SUZUKI, Nobuhiko ARAKAWA

Article type: Article
1979 Volume 53 Issue 2 Pages 63-68
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_63

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The effect of ascorbate 2-sulfate (AsS) administration on AsS sulfohydrolase activity in guinea pig liver was studied. Guinea pigs fed on ascorbic acid (AsS) deficient diet were derived into six experimental groups - no AsA, 10mg AsS, 0.5mg AsA, 0.5mg AsA+10mg AsS, 2.0mg AsA and 2.0mg AsA +10mg AsS. After the feeding test for 14 days, the appearance of the generally accepted symptoms of scurvy was observed in the no AsA supplemented group and the 10 mg AsS supplemented group, indicating that AsS had no antiscorbutic activity in guinea pig. Also, no increase in the activities of AsS sulfohydrolase and arylsulfatase from guinea pig liver was observed in AsS administration.

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Determination of Tocopherols in Human Milk by High Performance Liquid Chromatography

Shunichi MAISAWA

Article type: Article
1979 Volume 53 Issue 2 Pages 69-75
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_69

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Contents of individual tocopherols (Toc) in human milk were analysed by high performance liquid chromatography (HPLC). HPLC method is more simple and accurate as compared with other conventional methods for the determination of Toc in human milk. The mean contents of α-, β-, γ-, and δ-Toc in human milk shown from 12 mothers were as follows: In the colostra, 1,050.4, 19.1, 123.8, 16.7μg/100ml. In the transitional milk, 389.0, 8.3, 60.4, 9.5μg/100ml. In the mature milk, 317.7, 8.2, 73.0, 12.2μg/100ml; markedly high concentration of α-Toc was found in colostrum as compared with transitional and mature milk. The value of δ-Toc was about 2% of the total Toc in human milk. The contents of Toc were analysed daily from the 2nd day to the 8th day after parturition and the highest concentration of Toc was noted in the milk of the 2nd day.

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...

Article type: Article
1979 Volume 53 Issue 2 Pages 77-78
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_77

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese]

Article type: Article
1979 Volume 53 Issue 2 Pages 78-
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_78_1

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese]

Article type: Article
1979 Volume 53 Issue 2 Pages 78-
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_78_2

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese]

Article type: Article
1979 Volume 53 Issue 2 Pages 78-79
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_78_3

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1979 Volume 53 Issue 2 Pages 79-
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_79

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese]

Article type: Article
1979 Volume 53 Issue 2 Pages 80-81
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_80

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1979 Volume 53 Issue 2 Pages 81-
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_81

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese]

Article type: Article
1979 Volume 53 Issue 2 Pages 83-84
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_83

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese]

Article type: Article
1979 Volume 53 Issue 2 Pages 84-85
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_84

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese]

Article type: Article
1979 Volume 53 Issue 2 Pages 85-
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_85_1

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1979 Volume 53 Issue 2 Pages 85-86
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_85_2

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese]

Article type: Article
1979 Volume 53 Issue 2 Pages 86-87
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_86

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese]

Article type: Article
1979 Volume 53 Issue 2 Pages 87-
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_87_1

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese]

Article type: Article
1979 Volume 53 Issue 2 Pages 87-88
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_87_2

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese]

Article type: Article
1979 Volume 53 Issue 2 Pages 88-89
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_88

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese]

Article type: Article
1979 Volume 53 Issue 2 Pages 89-
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_89

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1979 Volume 53 Issue 2 Pages 91-
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_91_1

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...

Article type: Article
1979 Volume 53 Issue 2 Pages 91-92
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_91_2

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[title in Japanese]

[in Japanese], George A. Feigen, Ronald Grant

Article type: Article
1979 Volume 53 Issue 2 Pages 92-
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_92

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[title in Japanese]

[in Japanese]

Article type: Article
1979 Volume 53 Issue 2 Pages 93-95
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_93

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[title in Japanese]

[in Japanese]

Article type: Article
1979 Volume 53 Issue 2 Pages 95-97
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_95

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1979 Volume 53 Issue 2 Pages 97-98
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_97

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[title in Japanese]

[in Japanese]

Article type: Article
1979 Volume 53 Issue 2 Pages 99-100
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_99

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Pharmacokinetics, volume editor. H., Schonfeld : Antibiotics and Chemotherapy,Vol.25, XII^+ 320p., 58 fig., 70 tab., Basel, New York, Karger, 1978

[in Japanese]

Article type: Article
1979 Volume 53 Issue 2 Pages 101-102
Published: February 25, 1979
Released on J-STAGE: March 07, 2018

DOIhttps://doi.org/10.20632/vso.53.2_101

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