نتایج جستجو برای: zymomonas mobilis
تعداد نتایج: 850 فیلتر نتایج به سال:
Bioethanol fuel has the advantage of being more environmentally friendly than petroleum. is made from organic materials containing glucose. Baking rice contains 83.19% (w/w) carbohydrates and 29.70% amylose which can be converted into bioethanol through hydrolysis fermentation stages. This type research an experimental research, initial stage carried out to obtain reducing sugars using crude Ba...
BACKGROUND During the pretreatment of biomass feedstocks and subsequent conditioning prior to saccharification, many toxic compounds are produced or introduced which inhibit microbial growth and in many cases, production of ethanol. An understanding of the toxic effects of compounds found in hydrolysate is critical to improving sugar utilization and ethanol yields in the fermentation process. I...
BACKGROUND Zymomonas mobilis ZM4 is a capable ethanologenic bacterium with high ethanol productivity and ethanol tolerance. Previous studies indicated that several stress-related proteins and changes in the ZM4 membrane lipid composition may contribute to ethanol tolerance. However, the molecular mechanisms of its ethanol stress response have not been elucidated fully. METHODOLOGY/PRINCIPAL F...
BACKGROUND The need for discovery of alternative, renewable, environmentally friendly energy sources and the development of cost-efficient, "clean" methods for their conversion into higher fuels becomes imperative. Ethanol, whose significance as fuel has dramatically increased in the last decade, can be produced from hexoses and pentoses through microbial fermentation. Importantly, plant biomas...
BACKGROUND Acetic acid is a predominant by-product of lignocellulosic biofuel process, which inhibits microbial biocatalysts. Development of bacterial strains that are tolerant to acetic acid is challenging due to poor understanding of the underlying molecular mechanisms. RESULTS In this study, we generated and characterized two acetic acid-tolerant strains of Zymomonas mobilis using N-methyl...
Performing oxidative phosphorylation is the primary role of respiratory chain both in bacteria and eukaryotes. Yet, the branched respiratory chains of prokaryotes contain alternative, low energy-coupling electron pathways, which serve for functions other than oxidative ATP generation (like those of respiratory protection, adaptation to low-oxygen media, redox balancing, etc.), some of which are...
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