Purification and Identification of Flavonoids from the Yellow Green Cocoon Shell (Sasamayu) of the Silkworm, Bombyx mori(Biochemistry & Molecular Biology)
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概要
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Three quercetin glycosides, quercetin 5-O-β-D-glucoside, quercetin 7-O-β-D-glucoside, and quercetin 4'-O-β-D-glucoside, and two kaempferol glycosides, kaempferol 5-O-β-D-glucoside and kaempferol 7-O-β-D-glucoside, along with their aglycones, quercetin and kaempferol, were isolated from an ethanolic extract of Sasamayu cocoon shells. The chemical structures were characterized by chemical and spectroscopic methods including UV spectrometry and HPLC-ESI-MS. The five flavonol glycosides of the shell are different structurally from those of the leaves of mulberry (Morus alba). It was suggested that potent antioxidative activity in the cocoon is mainly due to flavonoid compounds since free radical scavenging activity was found in the cocoon flavonoids identified here.
- 社団法人日本農芸化学会の論文
- 2002-06-23
著者
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YAMAZAKI Masayoshi
National Institute for Materials Science
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Yamazaki Masayoshi
National Research Institute For Metals
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Yamazaki Masayoshi
Silk Science Research Institute
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KURIOKA Akira
Silk Science Research Institute
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Kurioka A
Silk Sci. Res. Inst. Tokyo Jpn
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