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KMID : 1007520200290101343
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Food Science and Biotechnology
2020 Volume.29 No. 10 p.1343 ~ p.1353
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New caryophyllene-type sesquiterpene and flavonol tetraglycoside with sixteen known compounds from sword bean (Canavalia gladiata)
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An Hyun-Jeong
Kim Eun-Hee
Lee Hyoung-Jae
Cho Jeong-Yong
Moon Jae-Hak
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Abstract
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Eighteen compounds including new caryophyllene-type sesquiterpene and flavonol tetraglycoside were purified and isolated from sword beans (Canavalia gladiata). Two new compounds, (Z,1R,7S,9S)-7-hydroxy-11,11-dimethyl-8-methylenebicyclo[7.2.0]undec-4-ene-4-carboxylic acid (2) and kaempferol-7-O-α-L-dirhamnopyranosyl(1?→?2;1?→?6)-O-β-D-glucopyranosyl(1?→?2)-O-α-L-rhamnopyranoside (9), were identified. Other known compounds including methyl gallate (1), (2S,3S,4E,8E)-2-aminooctadeca-4,8-diene-1,3-diol 1-O-β-D-glucopyranoside (3), (2S,3S,4E,8Z)-2-aminooctadeca-4,8-diene-1,3-diol 1-O-β-D-glucopyranoside (4), lupeol (5), trilinolein (6), 1,6-di-O-galloyl β-D-glucopyranoside (7), N-(2-methoxybenzoyl)homoserine (8), dihydrophaseic acid (10), dillenetin (11), kaempferol-7-O-[2-O-β-D-glucopyranosyl-6-O-α-L-rhamnopyranosyl]-α-L-rhamnopyranoside (12), canavalioside (13), kaempferol-3-O-[2-O-β-D-glucopyranosyl-6-O-α-L-rhamnopyranosyl]-β-D-glucopyranoside (14), kaempferol-3-O-(2,6-O-α-L-dirhamnopyranosyl)-β-D-glucopyranoside (15), kaempferol-3-O-rutinoside (16), gladiatoside A1 (17), and gladiatoside B1 (18) were identified. The chemical structures of these compounds were determined by ESI?MS and NMR analyses.
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KEYWORD
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Canavalia galidata, Sword bean, Flavonoid tetraglycoside, Sesquiterpenoic acid, Cerebioside
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