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柿及小柿の葉のビタミンCについて
http://hdl.handle.net/10091/4297
http://hdl.handle.net/10091/42977647a8fd-a037-4832-8a59-5f9d166c0e90
名前 / ファイル | ライセンス | アクション |
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||
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公開日 | 2010-02-12 | |||||||||
タイトル | ||||||||||
タイトル | 柿及小柿の葉のビタミンCについて | |||||||||
タイトル | ||||||||||
タイトル | Studies on Vitamine C (I-ascorbic acid) in the Leaves of Kaki (Japanese Persimmon) | |||||||||
言語 | ||||||||||
言語 | jpn | |||||||||
資源タイプ | ||||||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||||||
タイプ | departmental bulletin paper | |||||||||
著者 |
平林, 貴邦
× 平林, 貴邦
× 高野, 悦子
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出版者 | ||||||||||
出版者 | 信州大学教養部 | |||||||||
引用 | ||||||||||
内容記述 | 信州大学教養部紀要. 第二部, 自然科学 3: 15-21(1969) | |||||||||
書誌情報 |
信州大学教養部紀要. 第二部, 自然科学 巻 3, p. 15-21, 発行日 1969-02-28 |
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抄録 | ||||||||||
内容記述 | It has been said that the juice from the leaves of Kaki (japanese persimmon) boiled with water contains a large amount of vitamine C (l-ascorbic acid). But the measurement of vitamine C in the leaves of Kaki has not been carried out and the results have not been found in literatures. The present paper dealed with the contents of vitamine C in the leaves of Kaki by the indophenol method using 2,6-dichlorophenol indophenol-Na and the hydrazine method using 2,4-dinitrophenyl hydrazine. Mixture of 2 g. of the sample and 100 ml. of 2.5% HPO₃ was strongly homogenized for 2 min. in mixer and filtered by glass-filter (17G₂). Vitamine C in the filtrate was measured by the indophenol method, and it in the filtrate diluted with 9 volumes of 5% HPO₃ was done by the hydrazine method. From the experiment, it was made sure that the leaves of Kaki contained a large amount of vitamine C (500-1100 mg. per 100 g. of leaves) and the content was varied according to the variation of seasons ; the maximum content was about 1100 mg. or more per 100 g. of leaves in July and August. The contents of vitamine C in the leaves dried by various methods (natural drying, ultra-red ray heating and freezing vacuum drying) were also measured. | |||||||||
資源タイプ(コンテンツの種類) | ||||||||||
内容記述 | Article | |||||||||
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収録物識別子タイプ | ISSN | |||||||||
収録物識別子 | 0583-0613 | |||||||||
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収録物識別子タイプ | NCID | |||||||||
収録物識別子 | AN0012116X | |||||||||
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出版タイプ | VoR | |||||||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |