کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7081656 | 1460000 | 2013 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Butyric acid from anaerobic fermentation of lignocellulosic biomass hydrolysates by Clostridium tyrobutyricum strain RPT-4213
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
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چکیده انگلیسی
A novel Clostridium tyrobutyricum strain RPT-4213 was found producing butyrate under strict anaerobic conditions. This strain produced 9.47 g Lâ1 butyric acid from MRS media (0.48 g/g glucose). RPT-4213 was also used to ferment dilute acid pretreated hydrolysates including wheat straw (WSH), corn fiber (CFH), corn stover (CSH), rice hull (RHH), and switchgrass (SGH). Results indicated that 50% WSH with a Clostridia medium (Ct) produced the most butyric acid (8.06 g Lâ1, 0.46 g/g glucose), followed by 50% SGH with Ct (6.01 g Lâ1, 0.44 g/g glucose), however, 50% CSH Ct showed growth inhibition. RPT-4213 was then used in pH-controlled bioreactor fermentations using 60% WSH and SGH, with a dilute (0.5Ã) Ct medium, resulting 9.87 g Lâ1 butyric acid in WSH (yield 0.44 g/g) and 7.05 g Lâ1 butyric acid in SGH (yield 0.42 g/g). The titer and productivity could be improved through process engineering.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 143, September 2013, Pages 322-329
Journal: Bioresource Technology - Volume 143, September 2013, Pages 322-329
نویسندگان
Siqing Liu, Kenneth M. Bischoff, Timothy D. Leathers, Nasib Qureshi, Joseph O. Rich, Stephen R. Hughes,