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Study on Antibacterial Activity of Arnebia euchroma (Royle) Johnst and Isatis indigotica Fort Extracts in Vitro

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【Author】 HU Yong-jin1, QIAO Jin-ling2, ZHU Ren-jun1*, GE Chang-rong2 1.College of Food Science and Technology, Yunnan Agricultural University, Kunming, Yunnan 650201, China; 2. College of Animal Science and Technology,Yunnan Agricultural University, Kunming, Yunnan 650201, China

【摘要】 [Objective] The research aimed to study the effects of Arnebia euchroma (Royle) Johnst and Isatis indigotica Fort extracts with different concentration on the bacteriostasis and minimal inhibitory concentrations (MIC) of 6 strains food-borne microorganism and pathogenic bacteria (Escherichia coli, Salmonella typhimurium, Staphyloccocus aureus, Listeria monocytogenes, Streptococcus faecalis, Bacillus anthra). [Method] The filter paper dispersion method was used. [Result] The results showed that Arnebia euchroma (Royle) Johnst extracts had a strong inhibition on S. faecalis, L. monocytogenes, B. anthracis and S. aureus, and their minimal inhibitory concentrations(MIC) were 0.03, 0.03, 0.08 and 0.11 mg/ml, respectively. While Arnebia euchroma (Royle) Johnst extracts had a weak inhibition on S. typhimurium and E. coli. Isatis indigotica Fort extracts had a strong inhibition on S. aureus, L. monocytogenes, S. typhimurium and B. anthracis, and their MIC were 0.08, 0.20, 0.19 and 0.56 mg/ml respectively. While Isatis indigotica Fort extracts had a weak inhibition on the S. faecalis and E. coli with MIC of 1.08 and 1.16 mg/ml respectively. [Conclusion] The study can provide reference for developing and applying Arnebia euchroma (Royle) Johnst and Isatis indigotica Fort extracts as functional natural preservative.

  • 【分类号】TQ461
  • 【被引频次】1
  • 【下载频次】51
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