VITAMINS

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

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Volume 9

Displaying 301-350 of 418 articles from this issue

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STUDIES ON THE RIBOFLAVIN PRODUCTION BY EREMOTHECIUM ASHBYII (XL) : TRIALS TO PREVENT CONTAMINATION DURING CULTIVATION

Kyubei MINOURA

Article type: Article
1955Volume 9 Pages 414-418
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_414

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Experiments for preventing contamination were conducted with several antiseptics or antibiotics in order to complete safely the submerged culture or Eremothecium ashbyii for industrial production of riboflavin. The results obtained are as follows : 1) Bacillus subtilis group, frequently found as contaminants, was suppressed by the addition of 20 ppm of 2-(5-nitro)-furfural semicarbazone plus 5 ppm of 2-(5-nitro)-furylacrylyl amide, but some or the heat sensitive bacteria among putrifactive organisms grew under the same condition. Citrinin was found not to be used because of its marked inhibitory effect on Eremothecium ashb ii. 2) The tests for the effects of fungi, producing antifungal substances showed that the filtrates from fungal cultures inhibited rather the growth of Er. ashbyii than acted on contaminants.

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STUDIES ON THE RIBOFLAVIN PRODUCTION BY EREMOTHECIUM ASHBYII (XLI) : EFFECTS OF GROWTH INHIBITORS ON THE RIBOFLAVIN FORMATION

Kyubei MINOURA, Tadaaki YANAZAWA

Article type: Article
1955Volume 9 Pages 419-423
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_419

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It is well known that growth factors added to the culture medium cause a decrease in the amount of riboflavin produced accompanied with the increase in the growth of Eremothecium ashbyii. An attempt was made to increase the amount of ribofla in production by addition of inhibitors to the medium during incubation or in inoculum ; namely, NaF, CH_2ICOOH, KCN, urethane, malonic acid, methylene blue, p-benzoquinone, hydroquinone, 4-nitroquin-oline-N-oxide, sulfamine, sulfathiazole, penicillin, streptomycin, terramycin, and chromin. No satisfactory result could not be obtained by all the above agents.

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 423-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_423_1

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 423-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_423_2

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BIOSYNTHESIS OF RIBOFLAVIN BY INTESTINAL BACTERIA AND ITS SOURCES (I) : ON CARBON SOURCES

Kazuo HOTTA, Munetaka MORISHITA, Takeo MASUKAWA, Yoshiko AOYAMA, Huzio ...

Article type: Article
1955Volume 9 Pages 424-426
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_424

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This paper deals with the role of carbohydrate in the biosynthesis of riboflavin by intestinal bacteria. The experiments were carried out by means of the shaking culture of Escherichia coli communior in Anderson's medium. The results obtained were as follows : 1) Riboflavin formation was highest when glucose was added to the basal medium, while the addition of ribose did not produce so much the vitamin as expected, and polysaccharides such as starch or glycogen were less effective. 2) Ratio of FMN to total riboflavin was almost constant in all cases, but the ratio of FAD was comparatively high when glycogen or starch was used.

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 426-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_426_1

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 426-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_426_2

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 426-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_426_3

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DETECTION OF VITAMINS BY PAPER CHROMATOGRAPHY

Satoru KUWADA

Article type: Article
1955Volume 9 Pages 427-433
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_427

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 433-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_433_1

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 433-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_433_2

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 433-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_433_3

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[title in Japanese]

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

Article type: Article
1955Volume 9 Pages 434-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_434_1

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[title in Japanese]

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Article type: Article
1955Volume 9 Pages 434-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_434_2

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Article type: Article
1955Volume 9 Pages 434-435
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_434_3

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[title in Japanese]

[in Japanese], [in Japanese]

Article type: Article
1955Volume 9 Pages 435-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_435_1

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 435-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_435_2

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[title in Japanese]

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

Article type: Article
1955Volume 9 Pages 435-436
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_435_3

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[title in Japanese]

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Article type: Article
1955Volume 9 Pages 436-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_436_1

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[title in Japanese]

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Article type: Article
1955Volume 9 Pages 436-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_436_2

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Article type: Article
1955Volume 9 Pages 437-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_437_1

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[title in Japanese]

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Article type: Article
1955Volume 9 Pages 437-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_437_2

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[title in Japanese]

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Article type: Article
1955Volume 9 Pages 437-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_437_3

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[title in Japanese]

[in Japanese]

Article type: Article
1955Volume 9 Pages 437-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_437_4

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Article type: Article
1955Volume 9 Pages 438-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_438_1

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Article type: Article
1955Volume 9 Pages 438-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_438_2

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Article type: Article
1955Volume 9 Pages 438-439
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_438_3

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Article type: Article
1955Volume 9 Pages 439-
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DOIhttps://doi.org/10.20632/vso.9.0_439_1

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Article type: Article
1955Volume 9 Pages 439-440
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DOIhttps://doi.org/10.20632/vso.9.0_439_2

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Article type: Article
1955Volume 9 Pages 440-
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DOIhttps://doi.org/10.20632/vso.9.0_440_1

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Article type: Article
1955Volume 9 Pages 440-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_440_2

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Article type: Article
1955Volume 9 Pages 440-
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DOIhttps://doi.org/10.20632/vso.9.0_440_3

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Article type: Article
1955Volume 9 Pages 440-441
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_440_4

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Article type: Article
1955Volume 9 Pages 441-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_441_1

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Article type: Article
1955Volume 9 Pages 441-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_441_2

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[title in Japanese]

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

Article type: Article
1955Volume 9 Pages 442-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_442_1

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Article type: Article
1955Volume 9 Pages 442-
Published: 1955
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DOIhttps://doi.org/10.20632/vso.9.0_442_2

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1955Volume 9 Pages 442-
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Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_442_3

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Article type: Article
1955Volume 9 Pages 442-
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DOIhttps://doi.org/10.20632/vso.9.0_442_4

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1955Volume 9 Pages 442-443
Published: 1955
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DOIhttps://doi.org/10.20632/vso.9.0_442_5

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1955Volume 9 Pages 443-
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DOIhttps://doi.org/10.20632/vso.9.0_443_1

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1955Volume 9 Pages 443-444
Published: 1955
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DOIhttps://doi.org/10.20632/vso.9.0_443_2

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1955Volume 9 Pages 444-
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DOIhttps://doi.org/10.20632/vso.9.0_444_1

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Article type: Article
1955Volume 9 Pages 444-445
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_444_2

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Article type: Article
1955Volume 9 Pages 445-
Published: 1955
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DOIhttps://doi.org/10.20632/vso.9.0_445_1

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Article type: Article
1955Volume 9 Pages 445-
Published: 1955
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DOIhttps://doi.org/10.20632/vso.9.0_445_2

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Article type: Article
1955Volume 9 Pages 445-446
Published: 1955
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DOIhttps://doi.org/10.20632/vso.9.0_445_3

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Article type: Article
1955Volume 9 Pages 446-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_446_1

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[title in Japanese]

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Article type: Article
1955Volume 9 Pages 446-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_446_2

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[title in Japanese]

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Article type: Article
1955Volume 9 Pages 446-
Published: 1955
Released on J-STAGE: December 22, 2017

DOIhttps://doi.org/10.20632/vso.9.0_446_3

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