VITAMINS

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

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Volume 16

Displaying 101-150 of 657 articles from this issue

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EFFECT OF THE OVER-DOSE OF EDIBLE PIGMENTS ON THE RIBOFLAVIN CONTENT IN THE INTERNAL ORGANS OF RATS

Kazuo HOTTA, Isao ISHIGURO, Kazue MAEDA

Article type: Article
1959 Volume 16 Pages 140-144
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_140

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Riboflavin has an important relation to liver tumors in rats fed on amino-azo dyes. Eight kinds of water soluble azo-dyes were selected out of the edible pigments on the market. After they were administrated in large amount to rats, the conversion of the amount of riboflavin in several organs were observed. It was found that the amount of riboflavin in the liver and brain showed a remarkable decrease and that in the muscle and spleen only a slight decrease, while hardly any change was recognized in the kidney and heart.

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TEST FOR VITAMIN A ANTIOXIDANT : (III) THE OXIDATION OF VITAMIN A BY FATS OF HIGH PEROXIDE NUMBERS (2)

Masahiko HIDA

Article type: Article
1959 Volume 16 Pages 144-148
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_144

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Any effective antioxidant for vitamin A prevents its oxidation even at the lowest level of the antioxidant to fats and oils containing vitamin A. 10,000 I.U. of vitamin A in each 1g of fish-liver oil (peroxide number about 180) is kept at the room temperature with addition of an antioxidant at 0.1-0.005% to the oil. The blank samples without antioxidant are also kept at the same condition with and without replacement of the air with carbon dioxide. After 2 or 3 days the blank with carbon dioxide shows only 2-4% loss of vitamin A, the blank without carbon dioxide gives nearly 50% destruction of vitamin A and the samples with antioxidant are led to medium destruction between the two blanks. Index of the antioxidant at the given dilution is shown as : Vitamin A of sample with antioxidant-vitamin A of blank. Vitamin A of blank with CO_2 -vitamin A of blank.

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[title in Japanese]

[in Japanese]

Article type: Article
1959 Volume 16 Pages 148-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_148_1

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[title in Japanese]

[in Japanese]

Article type: Article
1959 Volume 16 Pages 148-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_148_2

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THE OXIDATION PRODUCT OF VITAMIN A ACETATE BY METHYL LINOLEATE OF HIGH PEROXIDE NUMBER : (I) ISOLATION OF 2,4-DINITROPHENYLHYDRAZONE OF THE OXIDATION PRODUCT

Masahiko HIDA

Article type: Article
1959 Volume 16 Pages 149-152
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_149

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Exposure of vitamin A acetate in ethyl acetate solution with irradiated methyl linoleate to air quickly destroyed vitamin A. The absorption maximum at 325mμ disappeared and a new maximum at 280 mμ was shown. The unsaponifiable fraction from the reaction mixture is also characterized by the same absorption maximum and separated into several zones on alumina chromatography. The eluate from the top zone shows 280 mμ absorption and the oily substance is turned into 2,4-dinitrophenylhydrazone of mp 146-147℃. Epoxy-β- cyclocitral is the most probable oxidation product assumed from its analytical data.

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[title in Japanese]

[in Japanese]

Article type: Article
1959 Volume 16 Pages 152-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_152_1

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[title in Japanese]

[in Japanese]

Article type: Article
1959 Volume 16 Pages 152-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_152_2

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STUDIES ON THE MUTUAL STABILITIES AMONG VITAMINS IN PHARMACEUTICAL PREPARATIONS : (I) THE STABILITIES BETWEEN THIAMINE SALTS AND ASCORBIC ACID IN GRANULARS AND TABLETS

Isamu UTUMI, Nobuyuki KATO, Masayoshi SAMEJIMA

Article type: Article
1959 Volume 16 Pages 153-155
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_153

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Granulars and multi-vitamin tablets of thiamine and ascorbic acid were prepared using thiamine hydrochloride, thiamine mononitrate and thiamine dicetylsulfate. Granulars were stored at 37℃, 85% relative humidity for about 30 days and tablets were stored at room temperature for about six months, and their stabilities were compared. The stabilities of both thiamine and ascorbic acid were found to be independent of the kinds of thiamine salts, but the preparations used thiamine dicetylsulfate showed the highest stability for both thiamine and ascorbic acid.

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[title in Japanese]

[in Japanese]

Article type: Article
1959 Volume 16 Pages 155-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_155_1

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[title in Japanese]

[in Japanese]

Article type: Article
1959 Volume 16 Pages 155-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_155_2

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ON THE FORMATION OF THIOCHROME FROM THIAMINE WITH PHOSPHOMOLYBDIC ACID

Masao YOSHIMURA, Masao YANO, Koichi TAZOE, Fujio MURAKAMI

Article type: Article
1959 Volume 16 Pages 156-159
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_156

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It was found that thiochrome was produced by the addition of phosphomolybdic acid followed by NaOH to thiamine solution. The finding led to the investigation on the optimum condition for this reaction. Maximum quantity of thiochrome was obtained by the reaction of 5 ml of thiamine solution with 10 mg of phosphomolybdic acid at pH 8 at 60℃ for 5 minutes. The yield of thiochrome compares with that with any of potassium ferricyanide or cyanogen bromide.

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[title in Japanese]

[in Japanese]

Article type: Article
1959 Volume 16 Pages 159-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_159_1

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[title in Japanese]

[in Japanese]

Article type: Article
1959 Volume 16 Pages 159-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_159_2

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[title in Japanese]

[in Japanese]

Article type: Article
1959 Volume 16 Pages 159-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_159_3

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STUDIES ON THE BACTERIAL SYNTHESIS AND DESTRUCTION OF THIAMINE : (III) DESTRUCTION AND PHOSPHORYLATION WITH CELL FREE PREPARATION OBTAINED FROM ESCHERICHIA COLI

Juichi OGATA

Article type: Article
1959 Volume 16 Pages 160-164
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_160

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It was found that thiamine was phosphorylated with cell free extract of Escherichia coli. The recovery of total thiamine added was slightly decreased but the existence of thiaminase could not be confirmed in it. On the other hand, thiaminase activity was found in the precipitate fraction with 0.6 saturation of ammonium sulfate of cell free extract of Staphylococcus.

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[title in Japanese]

[in Japanese]

Article type: Article
1959 Volume 16 Pages 164-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_164_1

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[title in Japanese]

[in Japanese]

Article type: Article
1959 Volume 16 Pages 164-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_164_2

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[title in Japanese]

[in Japanese]

Article type: Article
1959 Volume 16 Pages 164-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_164_3

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[title in Japanese]

[in Japanese]

Article type: Article
1959 Volume 16 Pages 164-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_164_4

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[title in Japanese]

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

Article type: Article
1959 Volume 16 Pages 165-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_165_1

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[title in Japanese]

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

Article type: Article
1959 Volume 16 Pages 165-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_165_2

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[title in Japanese]

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

Article type: Article
1959 Volume 16 Pages 165-166
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_165_3

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1959 Volume 16 Pages 166-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_166_1

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1959 Volume 16 Pages 166-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_166_2

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[title in Japanese]

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Article type: Article
1959 Volume 16 Pages 166-167
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_166_3

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Article type: Article
1959 Volume 16 Pages 167-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_167_1

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Article type: Article
1959 Volume 16 Pages 167-168
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_167_2

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[title in Japanese]

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Article type: Article
1959 Volume 16 Pages 168-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_168_1

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[title in Japanese]

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

Article type: Article
1959 Volume 16 Pages 168-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_168_2

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[title in Japanese]

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Article type: Article
1959 Volume 16 Pages 168-169
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_168_3

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Article type: Article
1959 Volume 16 Pages 169-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_169_1

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[title in Japanese]

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Article type: Article
1959 Volume 16 Pages 169-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_169_2

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Article type: Article
1959 Volume 16 Pages 169-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_169_3

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Article type: Article
1959 Volume 16 Pages 169-170
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_169_4

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Article type: Article
1959 Volume 16 Pages 170-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_170_1

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Article type: Article
1959 Volume 16 Pages 170-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_170_2

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[title in Japanese]

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Article type: Article
1959 Volume 16 Pages 170-171
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_170_3

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Article type: Article
1959 Volume 16 Pages 171-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_171_1

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Article type: Article
1959 Volume 16 Pages 171-172
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_171_2

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Article type: Article
1959 Volume 16 Pages 172-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_172_1

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Article type: Article
1959 Volume 16 Pages 172-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_172_2

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Article type: Article
1959 Volume 16 Pages 172-173
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_172_3

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Article type: Article
1959 Volume 16 Pages 173-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_173_1

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Article type: Article
1959 Volume 16 Pages 173-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_173_2

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[title in Japanese]

[in Japanese]

Article type: Article
1959 Volume 16 Pages 173-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_173_3

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[title in Japanese]

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Article type: Article
1959 Volume 16 Pages 173-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_173_4

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[title in Japanese]

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Article type: Article
1959 Volume 16 Pages 174-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_174_1

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[title in Japanese]

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Article type: Article
1959 Volume 16 Pages 174-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_174_2

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[title in Japanese]

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Article type: Article
1959 Volume 16 Pages 174-
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_174_3

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[title in Japanese]

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Article type: Article
1959 Volume 16 Pages 174-175
Published: 1959
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.16.0_174_4

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