| Literature DB >> 15993639 |
Maria Inês Soares Melecchi1, Valéria Flores Péres, Cláudio Dariva, Claudia Alcaraz Zini, Fernanda Contieri Abad, Migdália Miranda Martinez, Elina Bastos Caramão.
Abstract
The influence of several experimental parameters on the ultrasonic extraction of Hibiscus tiliaceus L. flowers were investigated: extraction time, solvent polarity, sample amount, solvent volume and sample particle size. It was concluded that the most influential variables were extraction time and solvent polarity. The optimized procedure employed 5 g of ground flowers, 150 mL of methanol and 140 min of extraction. The extracts were fractionated using preparative silica columns and the resulting fractions were analyzed by GC/MS. Some saturated hydrocarbons, fatty acids, fatty acid methyl esters, phytosterols, and vitamin E were identified in the plant extracts.Entities:
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Year: 2005 PMID： 15993639 DOI： 10.1016/j.ultsonch.2005.02.003
Source DB: PubMed Journal: Ultrason Sonochem ISSN： 1350-4177 Impact factor: 7.491