کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
681045 1459998 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Biobutanol production from rice straw by a non acetone producing Clostridium sporogenes BE01
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Biobutanol production from rice straw by a non acetone producing Clostridium sporogenes BE01
چکیده انگلیسی

Biobutanol from lignocellulosic biomass has gained much attention due to several advantages over bioethanol. Though microbial production of butanol through ABE fermentation is an established technology, the use of lignocellulosic biomass as feedstock presents several challenges. In the present study, biobutanol production from enzymatic hydrolysate of acid pretreated rice straw was evaluated using Clostridium sporogenes BE01. This strain gave a butanol yield of 3.43 g/l and a total solvent yield of 5.32 g/l in rice straw hydrolysate supplemented with calcium carbonate and yeast extract. Hydrolysate was analyzed for the level of inhibitors such as acetic acid, formic acid and furfurals which affect the growth of the organism and in turn ABE fermentation. Methods for preconditioning the hydrolysate to remove toxic end products were done so as to improve the fermentation efficiency. Conditions of ABE fermentation were fine tuned resulting in an enhanced biobutanol reaching 5.52 g/l.


► Clostridium sporogenes – a novel non acetone forming butanol producer isolated.
► Biobutanol produced using a lignocellulosic biomass hydrolysate derived medium.
► Anionic resin successfully removed fermentation inhibitors from hydrolysate.
► A maximum butanol production of 5.52 g/l in rice straw hydrolysate attained.
► One of the highest butanol production by C. sporogenes reported in any medium.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 145, October 2013, Pages 182–187
نویسندگان
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