کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7705655 | 1497300 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of substrate concentration on the competition between Clostridium and Lactobacillus during biohydrogen production
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of substrate concentration on the competition between Clostridium and Lactobacillus during biohydrogen production Effect of substrate concentration on the competition between Clostridium and Lactobacillus during biohydrogen production](/preview/png/7705655.png)
چکیده انگلیسی
To evaluate the effect of substrate concentration on competition between hydrogen producing bacteria and lactic acid bacteria during hydrogen fermentation, a series of batch tests was conducted using galactose or glucose as a carbon source. Clostridium butyricum, Lactobacillus casei, and mixture of the two species were used for inoculum, respectively. The batch tests based on single species revealed that C. butyricum utilized galactose faster than L. casei, regardless of substrate concentration (0.2-5.7Â g/L), while L. casei utilized glucose faster than C. butyricum at low levels of glucose (<1Â g/L). These trends were also observed in the batch test based on a mixture of the two species. L. casei outcompeted C. butyricum only when glucose was provided at low concentration. Taken together, the results suggest that failure of biohydrogen production can occur at low glucose concentration via outcompeting of lactic acid bacteria over hydrogen producing bacteria.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 43, Issue 25, 21 June 2018, Pages 11460-11469
Journal: International Journal of Hydrogen Energy - Volume 43, Issue 25, 21 June 2018, Pages 11460-11469
نویسندگان
Jeong-Hoon Park, Do-Hyung Kim, Sang-Hyoun Kim, Jeong-Jun Yoon, Hee-Deung Park,