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Study on the Antimicrobial Activity of Liposoluble Compounds from Sargassum pallidum (tvrn) Ag against Food Spoilage Bacteria

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【Author】 LIN Xiong-ping1*, CHEN Xiao-qing2, PENG Biao1, CHEN Hui-bin3, ZHOU Feng-fang1 1.Department of Biological Engineering, Ningde Normal University, Ningde, Fujian 352100, China; 2.Department of Biology Science & Technology, Zhangzhou Normal College, Zhangzhou, Fujian 363000, China; 3.Biology Department, Xiamen Ocean Vocational College, Xiamen, Fujian 361012, China

【摘要】 [Objective] To study the antimicrobial activity of liposoluble compounds from Sargassum pallidum (tvrn) Ag against food spoilage bacteria. [Method] Using the circle agar disc diffusion method, the antimicrobial activity of liposoluble compounds and fractions isolated by column chromatography from S. pallidum was assayed against food spoilage bacteria. [Result] The inhibition zone of S. pallidum crude grease against Escherichia coli and Pseudomonas stutzeri was 1.0 and 1.5 mm. Bacillus subtilis and Staphylococcus aureus were not sensitive to crude grease. Benzene fraction had no antimicrobial activities against Escherichia coli and Pseudomonas stutzeri, and its inhibition zone against Staphylococcus aureus and Bacillus subtilis was both 1.0 mm. Petroleum ether fraction had no antimicrobial activity against 4 food spoilage bacteria. Ethanol fraction showed strong antimicrobial activities against four food spoilage bacteria and the inhibition zone against Bacillus subtilis, Escherichia coli, Staphylococcus aureus and Pseudomonas stutzeri could reach 3.0, 4.5, 4.0, and 2.5 mm. In addition, the blank control group had no antimicrobial activities. [Conclusion] Ethanol fraction of S. pallidum showed strong antimicrobial activities against four food spoilage bacteria. The antimicrobial activities of liposoluble compounds were attributed to their strongly polar lipids.

【基金】 Supported by the Class B Science and Technology Research Project of Education Department of Fujian Province (JB10187);Science and Technology Plan Project of Ningde City of Fujian Province (20100033);Project to Serve Haixi of Ningde Normal University (2010H305);Ningde Normal University Sponsored Special Project (2009203)
  • 【分类号】R155.5
  • 【下载频次】29
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