کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
679488 1459945 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Rhamnolipid and surfactin production from olive oil mill waste as sole carbon source
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Rhamnolipid and surfactin production from olive oil mill waste as sole carbon source
چکیده انگلیسی


• Olive mill waste constitutes a difficult by-product to dispose or reuse.
• Olive mill waste can have added value as a substrate for biosurfactant production.
• P. aeruginosa and B. subtilis can utilise olive mill waste as sole carbon source.
• The process achieves recycling of agricultural waste into high added value products.

Olive mill waste (OMW) creates a major environmental problem due to the difficulty of further waste processing. In this work we present an approach to give OMW added value by using it for the production of biosurfactants. Two bacterial species, Pseudomonas aeruginosa and Bacillus subtilis, were grown with OMW as the sole carbon source. Glycerol and waste frying oil were used as comparative carbon sources. B. subtilis produced surfactin (a lipopeptide) at a maximum concentration of 3.12 mg/L with 2% w/v of OMW in the medium, dropping to 0.57 mg/L with 10% w/v of OMW. In contrast, P. aeruginosa produced 8.78 mg/L of rhamnolipid with 2% w/v OMW increasing to 191.46 mg/L with 10% w/v OMW. The use of solvent-extracted OMW reduced the biosurfactant production by 70.8% and 88.3% for B. subtilis and P. aeruginosa respectively. These results confirm that OMW is a potential substrate for biosurfactant production.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 198, December 2015, Pages 231–236
نویسندگان
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