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Supercritical fluid extraction of glycosylated flavonoids from Passiflora leaves

✍ Scribed by Maria de Lourdes L. Moraes; Janete H. Y. Vilegas; Fernando M. Lanças

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
109 KB
Volume
8
Category
Article
ISSN
0958-0344

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✦ Synopsis

This work describes the extraction of glycosylated flavonoids from 'passion fruit' leaves (Passiflora edulis; Passifloraceae), using carbon dioxide in the supercritical state modified with chloroform, ethyl acetate or shortchain alcohols. Carbon dioxide modified with 10% methanol was shown to be the best extraction fluid, considering both the yield of the flavonoid extracts and the temperature conditions. The supercritical fluid extracts were compared to those obtained by using a conventional extraction method for Passiflora flavonoids, indicating the advantages of supercritical fluid extraction as an alternative method for the analysis of flavonoids from other 'passion fruit' species (P. alata and P. incarnata).

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