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Information Journal Paper

Title

INVESTIGATION OF BIOSURFACTANT PRODUCTION BY BACILLUS PUMILUS 1529 AND BACILLUS SUBTILIS WPI

Pages

  97-110

Abstract

 Introduction: BIO SURFACTANTs are unique amphipathic molecules with extensive application in removing organic and metal contaminants. The purpose of this study was to investigate production of BIO SURFACTANT and determine optimal conditions to produce BIO SURFACTANT by BACILLUS pumilus 1529 and BACILLUS subtilis WPI.Materials and methods: In this study, effect of carbon source, temperature and incubation time on biosurfactant production was evaluated. Hemolytic activity, emulsification activity, oil spreading, drop collapse, cell hydrophobicity and measurement of surface tension were used to detect BIO SURFACTANT production. Then, according to the results, the optimal conditions for BIO SURFACTANT production by and BACILLUS subtilis WPI was determined.Results: In this study, both bacteria were able to produce BIO SURFACTANT at an acceptable level. Glucose, kerosene, sugarcane MOLASSES and PHENANTHRENE used as a sole carbon source and energy for the mentioned bacteria. BACILLUS subtilis WPI produced maximum BIO SURFACTANT in the medium containing kerosene and reduced surface tension of the medium to 33.1 mN/m after 156 hours of the cultivation at 37°C. Also, the highest surface tension reduction by BACILLUS pumilus 1529 occurred in the medium containing sugarcane MOLASSES and reduce the surface tension of culture medium after 156 hours at 37°C from 50.4 to 28.83 mN/m.Discussion and conclusion: BACILLUS pumilus 1529 and BACILLUS subtilis WPI had high potential in production of BIO SURFACTANT and degradation of petroleum hydrocarbons and PHENANTHRENE. Therefore, it could be said that these bacteria had a great potential for applications in bioremediation and other environmental process.

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    APA: Copy

    KHAJAVI SHOJAEI, SHILA, MOEZI, ABDOLAMIR, & ENAYATIZAMIR, NAEIMEH. (2016). INVESTIGATION OF BIOSURFACTANT PRODUCTION BY BACILLUS PUMILUS 1529 AND BACILLUS SUBTILIS WPI. BIOLOGICAL JOURNAL OF MICROORGANISM, 5(17), 97-110. SID. https://sid.ir/paper/237313/en

    Vancouver: Copy

    KHAJAVI SHOJAEI SHILA, MOEZI ABDOLAMIR, ENAYATIZAMIR NAEIMEH. INVESTIGATION OF BIOSURFACTANT PRODUCTION BY BACILLUS PUMILUS 1529 AND BACILLUS SUBTILIS WPI. BIOLOGICAL JOURNAL OF MICROORGANISM[Internet]. 2016;5(17):97-110. Available from: https://sid.ir/paper/237313/en

    IEEE: Copy

    SHILA KHAJAVI SHOJAEI, ABDOLAMIR MOEZI, and NAEIMEH ENAYATIZAMIR, “INVESTIGATION OF BIOSURFACTANT PRODUCTION BY BACILLUS PUMILUS 1529 AND BACILLUS SUBTILIS WPI,” BIOLOGICAL JOURNAL OF MICROORGANISM, vol. 5, no. 17, pp. 97–110, 2016, [Online]. Available: https://sid.ir/paper/237313/en

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