کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6689884 | 501893 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Regulation of hydrogen photoproduction in Rhodobacter sphaeroides batch culture by external oxidizers and reducers
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Regulation of hydrogen photoproduction in Rhodobacter sphaeroides batch culture by external oxidizers and reducers Regulation of hydrogen photoproduction in Rhodobacter sphaeroides batch culture by external oxidizers and reducers](/preview/png/6689884.png)
چکیده انگلیسی
Photo-fermentative production of hydrogen (H2) by purple bacterium Rhodobacter sphaeroides MDC6521 from Armenian mineral springs and its regulation by external reducers and oxidizers have been investigated. Reducers such as dl-dithiothreitol (DTT) and dithionite suppress bacterial growth but enhance H2 yield of R. sphaeroides, whereas oxidizer ferricyanide inhibits both processes. The effect of DTT on DCCD-inhibited FoF1-ATPase activity of R. sphaeroides membrane vesicles has been analyzed too. DTT increases the DCCD-inhibited ATPase activity. Thus, more negative values of Eh by addition of DTT might regulate FoF1-ATPase activity. The participation of the ATPase in redox sensing under photo-fermentative H2 production is suggested. This enzyme might be a target, having a significant role in these processes of purple bacteria.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Energy - Volume 131, 15 October 2014, Pages 20-25
Journal: Applied Energy - Volume 131, 15 October 2014, Pages 20-25
نویسندگان
Lilit Gabrielyan, Harutyun Sargsyan, Lilit Hakobyan, Armen Trchounian,