5齢期の家蚕消化液における低分子抗菌性物質の定量
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- 飯塚 敏彦
- 北海道大学農学部
書誌事項
- タイトル別名
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- Quantitative analysis of several low molecular antibacterial substances in the digestive juice of 5th-instar silkworm larvae.
- 5レイキ ノ カサン ショウカエキ ニ オケル テイ ブンシ コウキンセイ ブ
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説明
Caffeic acid (CA), protocatechuic acid (PA) and p-hydroxybenzoic acid (HA) which are low molecular antibacterial substances had been identified in the digestive juice of silkworm larvae by Koike et al. (1979). Quantity of CA which is the main antibacterial substance among the three substances is considered to play a significant role in the antibacterial activity of silkworms.<br>In this experiment, the content of CA in samples from 3 days old 5th-instar larvae and 5 days old larvae was found to be 250ppm and 440ppm, respectively. In larvae immediately after molting and in 7 days old ones, however, CA content was only 0.6 and 1.3ppm, respectively. In spite of the small quantities of CA, actual antibacterial activity was much higher than in the samples from 3 days old and 5 days old larvae. This finding suggests that low molecular antibacterial substances did not play an important role in these samples.
収録刊行物
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- 日本蚕糸学雑誌
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日本蚕糸学雑誌 54 (6), 449-452, 1985
社団法人 日本蚕糸学会
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詳細情報 詳細情報について
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- CRID
- 1390001204529678464
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- NII論文ID
- 130004030810
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- NII書誌ID
- AN00190300
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- ISSN
- 1884796X
- 00372455
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- NDL書誌ID
- 3060003
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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
- IRDB
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可