Differences between flocculating yeast and regular industrial yeast in transcription and metabolite profiling during ethanol fermentation
Joint Authors
Lili, Li
Xiaoning, Wang
Xudong, Jiao
Song, Qin
Source
Saudi Journal of Biological Sciences
Issue
Vol. 24, Issue 3 (31 Mar. 2017), pp.459-465, 7 p.
Publisher
Publication Date
2017-03-31
Country of Publication
Saudi Arabia
No. of Pages
7
Main Subjects
Topics
Abstract EN
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.
American Psychological Association (APA)
Lili, Li& Xiaoning, Wang& Xudong, Jiao& Song, Qin. 2017. Differences between flocculating yeast and regular industrial yeast in transcription and metabolite profiling during ethanol fermentation. Saudi Journal of Biological Sciences،Vol. 24, no. 3, pp.459-465.
https://search.emarefa.net/detail/BIM-761726
Modern Language Association (MLA)
Lili, Li…[et al.]. Differences between flocculating yeast and regular industrial yeast in transcription and metabolite profiling during ethanol fermentation. Saudi Journal of Biological Sciences Vol. 24, no. 3 (Mar. 2017), pp.459-465.
https://search.emarefa.net/detail/BIM-761726
American Medical Association (AMA)
Lili, Li& Xiaoning, Wang& Xudong, Jiao& Song, Qin. Differences between flocculating yeast and regular industrial yeast in transcription and metabolite profiling during ethanol fermentation. Saudi Journal of Biological Sciences. 2017. Vol. 24, no. 3, pp.459-465.
https://search.emarefa.net/detail/BIM-761726
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 464-465
Record ID
BIM-761726