Antibacterial and antioxidant bioassay of three kinds of algae

›› 2014, Vol. 26 ›› Issue (2): 0-384387.

• 植物保护 •

Antibacterial and antioxidant bioassay of three kinds of algae

QIAN Zhuoquan;YIN Haozhen;HUANG Xiaolin;LIN Shaozhen;NAN Haihan;*

1 School of Life Sciences， Wenzhou Medical College， Wenzhou 325035， China; 2Zhejiang Mariculture Research Institute， Wenzhou 325000， China

Received:1900-01-01 Revised:1900-01-01 Online:2014-03-25 Published:2014-07-09

Abstract

Abstract:

The antibacterial activity of extracts of Sargassum thunbergii， Sargassum fusiforme and Laminaria japonica against Colon bacillus， Staphylococcus aureus and Pseudomonas aeruginosa was tested by drugsensitive disk diffusion method. Antioxidant activities of these extracts were analyzed by DPPH free radical scavenging test. The extracts of three kinds of algae showed significant antibacterial activities against S. aureus. Nbutanol extracted from S. thunbergii had the highest antibacterial effects. DPPH tests revealed the extracts of S. thunbergii were more significantly antioxidant than extracts of other algae. And the antioxidant activity of the ethyl acetate extract of S. thunbergii was stronger than those of petroleum ether and nbutanol extracts of S. thunbergii．

Key words: algae, antibacterial activity, DPPH, antioxidant bioassay

QIAN Zhuoquan;YIN Haozhen;HUANG Xiaolin;LIN Shaozhen;NAN Haihan;*. Antibacterial and antioxidant bioassay of three kinds of algae[J]. , 2014, 26(2): 0-384387.

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Antibacterial and antioxidant bioassay of three kinds of algae

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