کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6969219 | 1453017 | 2018 | 27 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improvement of biosurfactant production by Wickerhamomyces anomalus CCMA 0358 and its potential application in bioremediation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
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چکیده انگلیسی
In this work, biosurfactant production by Wickerhamomyces anomalus CCMA 0358 was increased through the development of an optimized culture medium using response surface methodology. The optimized culture medium contained yeast extract (4.64â¯g/L), ammonium sulfate (4.22â¯g/L), glucose (1.39â¯g/L) and olive oil (10â¯g/L). Biosurfactant production using this medium was validated both in flasks and bioreactor, and the surface tension was reduced from 49.0â¯mN/m up to 31.4â¯mN/m and 29.3â¯mN/m, respectively. In both cases, the highest biosurfactant production was achieved after 24â¯h of growth. W. anomalus CCMA 0358 demonstrated to be a fast biosurfactant producer (24â¯h) as compared to other yeast strains previously reported (144-240â¯h). The produced biosurfactant remained stable at high temperature (121â¯Â°C), NaCl concentrations as high as 300â¯g/L, and pH values between 6 and 12. The crude biosurfactant allowed the recovery of 20% of crude oil from contaminated sand, being a promising candidate for application in bioremediation or in the petroleum industry.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 346, 15 March 2018, Pages 152-158
Journal: Journal of Hazardous Materials - Volume 346, 15 March 2018, Pages 152-158
نویسندگان
Karla S. Teixeira Souza, Eduardo J. Gudiña, Rosane F. Schwan, LÃgia R. Rodrigues, Disney R. Dias, José A. Teixeira,