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[Study on Chemical Constituents of Peanut Hull]
Objective:
To investigate the chemical constituents of peanut hull.
Methods:
Several chromatography methods such as silica gel and Sephadex LH-20 combined with recrystallization were applied to isolate the compounds. Based on spectrum technologies (MS,1H-NMR and 13C-NMR) and physico-chemical methods, structures of isolated compounds were identified.
Results:
Twelve compounds were isolated and elucidated as luteolin (1), diosmetin (2), 5,7,3',4'-tetrahydroxy-8-prenyflavone (3),5,7,3'-trihydroxy-4'- methoxy-8-prenylflavone(4), eriodicrtyol (5), racemoflavone (6), hydnocarpin (7), 5,7-dihydroxy chromone (8), 5-hydroxy-chromone- 7-O-β-D-glucoside (9), ferulic acid (10), β-sitosterol (11) and daucosterol(12).
Conclusion:
Except compounds 1, 5 and 8, all compounds are obtained from peanut hull for the first time.
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