Antibacterial Property of Marine Streptomlyces sp. LY-1

doi:10.7506/spkx1002-6300-200923071

FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (23): 314-317.doi: 10.7506/spkx1002-6300-200923071

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Antibacterial Property of Marine Streptomlyces sp. LY-1

LIU Shu1，FANG Yao-wei1，XU Wei-feng2，LU Ming-sheng1，WANG Shu-jun1，CHEN Li1

1. School of Marine Science and Technology, Jiangsu Key Laboratory of Marine Biotechnology, Huaihai Insititute of Technology,
Lianyungang 222005, China；2. Jiangsu Agro-product Quality Test Center, Nanjing 210036, China

Received:2009-05-14 Revised:2009-08-20 Online:2009-12-01 Published:2010-12-29
Contact: LIU Shu E-mail:jdliushu@yahoo.com.cn

Abstract

Abstract:

Marine Streptomyces sp.LY-1 solated from marine samples collected in the intel tidal zone of Lianyungang, was found to produce antibacterial substance which exhibited significant inhibitory effects on 5 Gram-positive bacteria and 6 Gramnegative bacteria. The results of stability studies of the antibacterial substance showed that it had very good stability at pH1 and pH12 under 121 ℃ or under ultraviolet treatment. Sensibility and inhibition effect of antibacterial substance produced by strain LY-1 to Bacillus cereus and Escherichia coli were studied. The results showed that Bacillus cereus and Escherichia coli were very sensitive to antibacterial substance. Antibacterial substance could strongly inhibit their growth-breeding. The potential use of substance produced by strain LY-1 in bio-control, marine products, food and medical application was predicted.

Key words: Marine Streptomyces sp. LY-1, fermentation product, antibacterial activity

CLC Number:

Q939.13

LIU Shu1，FANG Yao-wei1，XU Wei-feng2，LU Ming-sheng1，WANG Shu-jun1，CHEN Li1. Antibacterial Property of Marine Streptomlyces sp. LY-1[J]. FOOD SCIENCE, 2009, 30(23): 314-317.

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Antibacterial Property of Marine Streptomlyces sp. LY-1

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