کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7721014 | 1497511 | 2013 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Production of biohydrogen from sugars and lignocellulosic biomass using Thermoanaerobacter GHL15
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Production of biohydrogen from sugars and lignocellulosic biomass using Thermoanaerobacter GHL15 Production of biohydrogen from sugars and lignocellulosic biomass using Thermoanaerobacter GHL15](/preview/png/7721014.png)
چکیده انگلیسی
The effect of culture parameters on hydrogen production using strain GHL15 in batch culture was investigated. The strain belongs to the genus Thermoanaerobacter with 98.9% similarity to Thermoanaerobacter yonseiensis and 98.5% to Thermoanaerobacter keratinophilus with a temperature optimum of 65-70 °C and a pH optimum of 6-7. The strain metabolizes various pentoses, hexoses, and disaccharides to acetate, ethanol, hydrogen, and carbon dioxide. However substrate inhibition was observed above 10 mM glucose concentration. Maximum hydrogen yields on glucose were 3.1 mol H2 molâ1 glucose at very low partial pressure of hydrogen. Hydrogen production from various lignocellulosic biomass hydrolysates was investigated in batch culture. Various pretreatment methods were examined including acid, base, and enzymatic (Celluclast® and Novozyme 188) hydrolysis. Maximum hydrogen production (5.8-6.0 mmol H2 gâ1 dw) was observed from Whatman paper (cellulose) hydrolysates although less hydrogen was produced by hydrolysates from other examined lignocellulosic materials (maximally 4.83 mmol H2 gâ1 dw of grass hydrolysate). The hydrogen yields from all lignocellulosic hydrolysates were improved by acid and alkaline pretreatments, with maximum yields on grass, 7.6 mmol H2 gâ1 dw.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 38, Issue 34, 13 November 2013, Pages 14467-14475
Journal: International Journal of Hydrogen Energy - Volume 38, Issue 34, 13 November 2013, Pages 14467-14475
نویسندگان
Hronn Brynjarsdottir, Sean M. Scully, Johann Orlygsson,