VITAMINS

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

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Volume 9

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1955Volume 9 Pages 367-368
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_367_3

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1955Volume 9 Pages 368-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_368_1

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[title in Japanese]

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

Article type: Article
1955Volume 9 Pages 368-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_368_2

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[title in Japanese]

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

Article type: Article
1955Volume 9 Pages 368-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_368_3

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[title in Japanese]

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

Article type: Article
1955Volume 9 Pages 368-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_368_4

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[title in Japanese]

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

Article type: Article
1955Volume 9 Pages 368-369
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_368_5

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1955Volume 9 Pages 369-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_369_1

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[title in Japanese]

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

Article type: Article
1955Volume 9 Pages 369-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_369_2

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[title in Japanese]

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

Article type: Article
1955Volume 9 Pages 369-370
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_369_3

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1955Volume 9 Pages 370-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_370_1

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1955Volume 9 Pages 370-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_370_2

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1955Volume 9 Pages 370-371
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_370_3

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[title in Japanese]

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

Article type: Article
1955Volume 9 Pages 371-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_371_1

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1955Volume 9 Pages 371-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_371_2

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1955Volume 9 Pages 371-372
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_371_3

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 372-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_372_1

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 372-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_372_2

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 372-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_372_3

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 372-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_372_4

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 373-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_373_1

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1955Volume 9 Pages 373-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_373_2

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1955Volume 9 Pages 373-374
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_373_3

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1955Volume 9 Pages 374-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_374_1

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1955Volume 9 Pages 374-375
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_374_2

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1955Volume 9 Pages 375-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_375_1

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1955Volume 9 Pages 375-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_375_2

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1955Volume 9 Pages 375-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_375_3

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 376-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_376_1

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 376-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_376_2

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 376-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_376_3

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 376-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_376_4

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 376-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_376_5

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 377-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_377_1

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 377-378
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_377_2

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 378-379
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_378

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 379-380
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_379

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 380-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_380_1

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 380-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_380_2

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 380-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_380_3

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STUDIES ON RICKET

Tamotsu SANO

Article type: Article
1955Volume 9 Pages 381-387
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_381

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DETERMINATION OF CAROTENE IN FECES

Tsuyuko KAWAGUCHI

Article type: Article
1955Volume 9 Pages 388-390
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_388

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For determining carotene in feces, the use of alumina is not appropriate, because the carotene fraction contains non-carotene pigment which causes too high carotene values. Calcium hydroxide is adequate. The suitable procedure for this purpose was described. Saponification is not necessary for determining carotene alone.

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 390-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_390_1

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 390-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_390_2

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FLUOROMETRIC ANALYSIS OF VITAMINS (III) : FLUORESCENCE SPECTRA OF THIOCHROME AND OTHER SIMILAR FLUORESCENT SUBSTANCES

Kunio YAGI, Toshikazu TABATA, Etsu KOTAKI, Takeo ARAKAWA

Article type: Article
1955Volume 9 Pages 391-392
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_391

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The fluorospectra of thiochrome, harmin hydrochloride, phenyl-α-naphthylamine and quinine sulphate were measured by using the fluorospectrophotometer devised by the authors, and the peaks of the spectra were found in 430〜435mμ, 425mμ, 430mμ and 455mμ respectively. Phenyl-α-naphthylamine will be used for a standard fluorescent substance for the measurement of thiochrome.

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 392-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_392

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THE CRYSTALLOGRAPHIC STUDY OF RIBOFLAVIN

Hachiro SAKATE

Article type: Article
1955Volume 9 Pages 393-399
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_393

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Crystals of riboflavin (natural, synthetic riboflavin and araboflavin) recrystallized from redistilled water are hexahedral and plate-shaped, and the interfacial angles of each pinecold and base are 90°. All these three are rhombic and optically negative. Natural and synthetic riboflavin are the same in respect to the fundamental optical constant. Araboflavin belongs to the same crystal system, but differs slightly in the fundamental optical constant.

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ON THE PHYSICOCHEMICAL DETERMINATION OF VITAMIN D

Katsutoshi MIWA

Article type: Article
1955Volume 9 Pages 399-403
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_399

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The physicochemical methods for determination of vitamin D which have so far been reported, can scarecely be applied to fish liver oils, possessing very low vitamin D potency. The author investigated the method of Fujita, Nagase and Aoyama (1954), using a some-what larger chromatographic column (15×6cm). The recoveries were found to be 99%, error interval being 7%. The vitamin D potency of pollack liver oil (about 3,000 I.U./g) was determined within the confidence limits of 13.2%.

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STUDIES ON THE RIBOFLAVIN PRODUCTION BY EREMOTHECIUM ASHBYII (XXXVII) : NITROGEN SOURCES FOR INDUSTRIAL PRODUCTION OF RIBOFLAVIN

Kyubei MINOURA

Article type: Article
1955Volume 9 Pages 403-406
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_403

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The effects of sardine, viscera of fish, fish meal and soy bean cake as nitrogen sources for the industrial production of riboflavin by Eremothecium ashbyii were investigated. 1) Extract of sardine meal with 2% caustic soda or hydrolysate of the substance with 2% hydrochloric acid was more suitable when supplemented with corn steep liquor than peptone alone for the production of riboflavin by the fungi. 2) The growth promoting effect of viscera of mackerel was so powerful that no additional growth factor was required. 3) Hydrolysate of soy bean cake with diluted hydrochloric acid was suitable for the growth of the fungi, but did not exert and effect on the production of riboflavin.

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STUDIES ON THE RIBOFLAVIN PRODUCTION BY EREMOTHECIUM ASHBYII (XXXVIII) : EFFECT OF THE PH OF THE MEDIUM

Kyubei MINOURA

Article type: Article
1955Volume 9 Pages 407-408
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_407

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This paper deals with the effect of regulating the pH of culture medium for Eremothecium ashbyii on its growth and riboflavin production. In the glucose-ammonium sulphate medium supplemented with corn steep liquor (pH 5.4 the riboflavin production and the growth of the fungi were about 30 per cent greater when the pH of the medium was adjusted to 7.0 at the middle stage of cultivation than when it was not adjusted. In the glucose-peptone medium, the amount of riboflavin produced in the case of adjusting pH to 6.0 during cultivation increased about 20% in comparison with that in the case of not adjusting pH.

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STUDIES ON THE RIBOFLAVIN PRODUCTION BY EREMOTHECIUM ASHBYII (XXXIX) : APPLICATION OF A NEW STRAIN OF FUNGI, TOLERABLE OF HIGH OSMOTIC PRESSURE

Kyubei MINOURA

Article type: Article
1955Volume 9 Pages 409-414
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_409

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It has been reported that embryo of cereals, especially of rice, wheat and barley are suitable raw materials for the production of riboflavin by Eremothecium ashbyii. It is, however, necessary to remove the excess of inorganic substances in the embryo by steeping in water, since the embryo contains so much inorganic substances as they inhibit the growth of the fungus owing to the high osmotic pressure. But, by this treatment the nutrient substances in embryo are also lost. An attempt was therefore made to omit the steeping process by creating a new strain of the fungi, tolerable of high osmotic pressure. This was succeeded by cultivation on embryo extract agar supplemented with 5% salt. It was however verified that the new strain had a lower ability of synthesizing riboflavin.

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