期刊
FOOD CHEMISTRY
卷 108, 期 3, 页码 1023-1026出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2007.11.059
关键词
porphyriditan cruentum; phaeodactylum tricornutum; chlorella vulgaris; antioxidant activity; beta-carotene-linoleate model system
The antioxidant activity of the microalgal ethanolic extracts of Porphyridium cruentum, Phaeodactylum tricornutum and Chlorella vulgaris was determined by means of the beta-carotene-linoleate model system. The results show that the activity of C vulgaris extract was higher than those obtained for the other microalgal extracts tested and for the synthetics BHA (butylated hydroxyanisole), and BHT (butylated hydroxytoluene). In addition, the major constituents present in the ethanolic extracts of the three microalgae species were analyzed by means of GC and GC-mass spectrometry. The results showed that the tested microalgae may be an important source of natural antioxidants, as an alternative to higher plants or the production by chemical synthesis. (C) 2007 Elsevier Ltd. All rights reserved.
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