کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4406408 1618678 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Isolation and characterization of biosurfactant production under extreme environmental conditions by alkali-halo-thermophilic bacteria from Saudi Arabia
ترجمه فارسی عنوان
جداسازی و مشخص کردن تولید بیوسورفکتانت در شرایط محیطی شدید باکتری های قلیایی-هالو-ترموفیلیک از عربستان سعودی
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست بوم شناسی
چکیده انگلیسی

Twenty three morphologically distinct microbial colonies were isolated from soil and sea water samples, which were collected from Jeddah region, Saudi Arabia for screening of the most potent biosurfactant strains. The isolated bacteria were selected by using different methods as drop collapse test, oil displacement test, blue agar test, blood hemolysis test, emulsification activity and surface tension. The results showed that the ability of Virgibacillus salarius to grow and reduce surface tension under a wide range of pH, salinities and temperatures gives bacteria isolate an advantage in many applications such as pharmaceutical, cosmetics, food industries and bioremediation in marine environment. The biosurfactant production by V. salarius decreased surface tension and emulsifying activity (30 mN/m and 80%, respectively). In addition to reducing the production cost of biosurfactants by tested several plant-derived oils such as jatropha oil, castor oils, jojoba oil, canola oil and cottonseed oil. In this respect the feasibility to reusing old frying oil of sunflower for production rhamnolipids and sophorolipids, their use that lead to solve many ecological and industrial problems.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Saudi Journal of Biological Sciences - Volume 22, Issue 4, July 2015, Pages 466–475
نویسندگان
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