FOOD SCIENCE ›› 2010, Vol. 31 ›› Issue (7): 114-116.doi: 10.7506/spkx1002-6300-201007025

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Analysis of Saponins from Carica papaya Pulp

HU Chang-ying,PAN Hui-fang   

  1. Department of Food Science and Engineering, Jinan University, Guangzhou 510632, China
  • Received:2009-07-17 Revised:2010-02-26 Online:2010-04-01 Published:2010-12-29
  • Contact: HU Chang-ying E-mail:hucy0000@sina.com

Abstract:

Objectives: To investigate bioactive compounds from Carica papaya pulp. Methods: Chemical components in Carica papaya pulp was extracted using 85% ethanol and purified by marcoporous resin adsorption followed by ODS and MCI column chromatography. The structures of these compounds were elucidated through NMR spectroscopic analysis. Results: Three compounds were isolated from Carica papaya pulp and their chemical structures were identified as 2β, 3β-dihydroxy-ursolic acid (Ⅰ); 3-O-glycoside-sterol (II); diosgenin-3-O- β-D-glucopyranosyl(1 → 3)- β-D-glucopyranosyl(1 → 4)-[α-Lrhamnopyranosyl(1 → 2)]- β -D-glucopyranoside (III), respectively. Conclusion: To the best of our knowledge, this paper is the first one that reports compounds I - III obtained from Carica papaya pulp.

Key words: Carica papaya, isolation, ursolic acid, glycoside-sterol, steroidal saponin

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