Effect of different extraction processes on the recovery of extracts from achyrocline satureioides DC: An evaluation of antioxidant activity

被引：13
|
作者：
Pereira, Camila G. [1 ]
Gualtieri, Isabela P. [2 ]
Meireles, M. Angela A. [2 ]
机构：
[1] Univ Fed Rio Grande do Norte, Dept Chem Engn, BR-59072970 Natal, RN, Brazil
[2] Univ Estadual Campinas, FEA Coll Food Eng, DEA, LASEFI, Campinas, SP, Brazil
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 2008年 / 43卷 / 06期
基金：
巴西圣保罗研究基金会;
关键词：
achyrocline satureioides; antioxidant activity; centrifugation; hydrodistillation; low pressure solvent extraction; quercetin; Soxhlet; supercritical fluid extraction; ultrasound extraction;
D O I：
10.1080/01496390801955562
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In the present work, the global yield, composition, and antioxidant activities of the extracts from Achyrocline satureioides obtained by different separation techniques were evaluated. Centrifugation, hydrodistillation, low pressure solvent extraction (LPSE), Soxhlet, supercritical fluid extraction, and ultrasound processes were used. The total phenolic compounds and quercetin present in the extracts were quantified. The antioxidant activity of the extracts was evaluated by the coupled reaction of -carotene/linolenic acid. Higher global yields were obtained by LPSE and Soxhlet. The analysis indicated the presence of flavonoids in all extracts. The antioxidant activities of the extracts were larger than that of the reference substance, -carotene.
引用
收藏
页码：1549 / 1563
页数：15
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