Optimization of the sonication extraction method of Hibiscus tiliaceus L. flowers

被引：56
|
作者：
Melecchi, MIS
Péres, VF
Dariva, C
Zini, CA
Abad, FC
Martinez, MM
Caramao, EB
机构：
[1] Univ Fed Rio Grande Sul, Inst Chem, BR-91501960 Porto Alegre, RS, Brazil
[2] Univ Havana, Havana, Cuba
来源：
ULTRASONICS SONOCHEMISTRY | 2006年 / 13卷 / 03期
关键词：
sonication; Hibiscus tiliaceus L; GC/MS;
D O I：
10.1016/j.ultsonch.2005.02.003
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
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. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：242 / 250
页数：9
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