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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국미생물학회 The Journal of Microbiology The Journal of Microbiology Vol. 43 No.3
발행연도
수록면
272 - 276 (5page)

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초록· 키워드

Bacillus subtilis ATCC 6633 was grown in BHIB medium supplemented with Mn²⁺ for 96 h at 37°C in a shaker incubator. After removing the microbial biomass, a lipopeptide biosurfactant was extracted from the supernatant. Its structure was established by chemical and spectroscopy methods. The structure was confirmed by physical properties, such as Hydrophile-Lipophile Balance (HLB), surface activity and erythrocyte hemolytic capacity. The critical micelle concentration (cmc) and erythrocyte hemolytic capacity of the biosurfactant were compared to those of surfactants such as SDS, BC (benzalkonium chloride), TTAB (tetradecyltrimethylammonium bromide) and HTAB (hexadecyltrimethylammonium bromide). The maximum hemolytic effect for all surfactants mentioned was observed at concentrations above cmc. The maximum hemolytic effect of synthetic surfactants was more than that of the biosurfactant produced by B. subtilis ATCC 6633. Therefore, biosurfactant would be considered a suitable surface-active agent due to low toxicity to the membrane.
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목차

  1. Materials and Methods
  2. Results and Discussion
  3. Acknowledgement
  4. References

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UCI(KEPA) : I410-ECN-0101-2013-475-001662502