کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
640029 1456960 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mixed reverse micellar extraction and effect of surfactant chain length on extraction efficiency
ترجمه فارسی عنوان
استخراج مخلوط معکوس میکسل و اثر طول زنجیره سورفکتانت بر راندمان استخراج
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
چکیده انگلیسی
This study investigated the effect of surfactant chain length on mixed reverse micellar extraction of cellulase. The mixed reverse micelle systems were formed by biosurfactant rhamnolipid and a nonionic surfactant tween (tween-20, tween-40, tween-60, or tween-80). Electron spin resonance (ESR) method was used in order to find the suitable chain length of tween and the best ratio of rhamnolipid/tween mixture. The key parameters such as pH and temperature in forward and backward extraction were studied, and the results showed that mixed reverse micelle with different surfactant chain length had different pH sensitivities. Rhamnolipid/tween-80 system was more sensitive to pH than other systems, and rhamnolipid/tween-20 system was the least sensitive to pH among four systems. The experimental results also showed that chain length had limited sensitivity to temperature. Rotation correlation time of cellulase solutions (original and extraction) were investigated, which proved the superiority of longer chain length system (rhamnolipid/tween-80 system).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Separation and Purification Technology - Volume 160, 29 February 2016, Pages 117-122
نویسندگان
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