کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5745566 | 1618666 | 2017 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Differences between flocculating yeast and regular industrial yeast in transcription and metabolite profiling during ethanol fermentation
ترجمه فارسی عنوان
تفاوت بین مخمر فلوکالیتی و مخمر معمولی صنعتی در رونویسی و پروفایل های متابولیتی در طول فرآوری اتانول
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کلمات کلیدی
تخمیر اتانول، بیان ژن، اتریشی اورشلیم، تجزیه و تحلیل متابولیک، مخمر فلوکولایتی،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
بوم شناسی
چکیده انگلیسی
Objectives: To improve ethanolic fermentation performance of self-flocculating yeast, difference between a flocculating yeast strain and a regular industrial yeast strain was analyzed by transcriptional and metabolic approaches. Results: The number of down-regulated (industrial yeast YIC10 vs. flocculating yeast GIM2.71) and up-regulated genes were 4503 and 228, respectively. It is the economic regulation for YIC10 that non-essential genes were down-regulated, and cells put more “energy” into growth and ethanol production. Hexose transport and phosphorylation were not the limiting-steps in ethanol fermentation for GIM2.71 compared to YIC10, whereas the reaction of 1,3-disphosphoglycerate to 3-phosphoglycerate, the decarboxylation of pyruvate to acetaldehyde and its subsequent reduction to ethanol were the most limiting steps. GIM2.71 had stronger stress response than non-flocculating yeast and much more carbohydrate was distributed to other bypass, such as glycerol, acetate and trehalose synthesis. Conclusions: Differences between flocculating yeast and regular industrial yeast in transcription and metabolite profiling will provide clues for improving the fermentation performance of GIM2.71.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Saudi Journal of Biological Sciences - Volume 24, Issue 3, March 2017, Pages 459-465
Journal: Saudi Journal of Biological Sciences - Volume 24, Issue 3, March 2017, Pages 459-465
نویسندگان
Li Lili, Wang Xiaoning, Jiao Xudong, Qin Song,