کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5148277 | 1497365 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Glycerol and mixture of carbon sources conversion to hydrogen by Clostridium beijerinckii DSM791 and effects of various heavy metals on hydrogenase activity
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Hydrogen is a carbon-neutral energy feedstock which is produced during fermentation of various carbon sources. The genomes of clostridia encode mainly [Fe-Fe]-hydrogenases. Clostridium beijerinckii DSM791 performed anaerobic fermentation of glycerol in batch culture at pH 7.5 and pH 5.5 and produced H2. At pH 7.5, the glycerol consumption rate was 3.7Â g/g cell mass/h, which was higher than that at pH 5.5. H2 production reached 5Â mmol/h/g cell mass at pH 7.5. The specific hydrogenase activity was â¼1.4 fold higher if cells were grown on glycerol compared to cells grown on glucose. Single (Fe2+, Fe3+, Ni2+) or mixed supply of metals (Fe2+ and Ni2+) increased the specific hydrogenase activity by â¼50%. These results suggest that C. beijerinckii DSM791 could be used as a potential H2 producer. It may help to further enhance H2 production using different industrial or agricultural wastes where glycerol and other carbon sources are present.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 12, 23 March 2017, Pages 7875-7882
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 12, 23 March 2017, Pages 7875-7882
نویسندگان
Karen Trchounian, Nicolai Müller, Bernhard Schink, Armen Trchounian,