書誌事項
- タイトル別名
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- Studies on Comenic Acid and 5-Oxymaltol Accumulations by Microorganism isolated from Soil
- ドジョウ サイキン ニ ヨル コメンサン , 5-オキシマルトール ノ チクセキ ニ ツイテ
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抄録
During the course of an investigation of the accumulation of maltol (3-hydroxy-2-methyl-γ-pyrone) by microorganisms, it was found that one strain No. 189, screened out from soil, accumulated two γ-pyrone compounds in the culture medium.<br> The present investigation was undertaken to clarify the progress of fermentation with the strain and to identify the two γ-pyrone compounds. No. 189 strain was gram-negative and motile by means of polar flagella (lophotrichous). The strain produced water-soluble yellow pigment and 2-keto gluconic acid in the culture medium. On the basis of these data, it seemed reasonable to assume that No. 189 strain was belonging to Pseudomonas.<br> The culture medium used contained 5% of sucrose, 1% of peptone, 0.1% of K2HPO4, 0.05% of MgSO4 and 0.1% of yeast extract. Incubation was carried out for 15 days at 37°C using 500-ml shaking flask. In this fermentation, as 2-ketogluconic acid was produced, the organism could not grow after 7 days, but the two γ-pyrone compounds were accumulated 855μg/ml as kojic acid after 15 days.<br> In view of the fact that the two crystallized γ-pyrone compounds had identical IR absorption spectra and UV absorption spectra with authentic comenic acid and 5-oxymaltol, we concluded that one is comenic acid and the other is 5-oxymaltol.
収録刊行物
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- 日本農芸化学会誌
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日本農芸化学会誌 42 (3), 103-108, 1968
公益社団法人 日本農芸化学会
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詳細情報 詳細情報について
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- CRID
- 1390001204534557056
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- NII論文ID
- 130001222111
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- NII書誌ID
- AN00196191
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- COI
- 1:CAS:528:DyaF1cXktVSru7g%3D
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- ISSN
- 18836844
- 00021407
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- NDL書誌ID
- 8399773
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- 抄録ライセンスフラグ
- 使用不可