bioethanol made from lignocelluloses biomass resources, provides unique environmental, economic and strategic benefits, when compared to gasoline as automobile fuel. to be able to substitute gasoline by bioethanol, one should over come many obstacles, including the production of furfural and hydroxyl-methyl furfural, which are produced when cellulosic materials are treated in the presence of ac...

background and objectives: probiotic yeasts are used in production of functional foods and pharmaceutical products. they play an important role in promoting and maintaining human health. until now, little work has been published on improving the survival of saccharomyces in stimulated gastrointestinal condition. material and methods: in this study the exposure of the yeast in the capsulate and ...

introduction: the purpose of this study was formulation and preparation of a proper culture medium for saccharomyces cerevisiae var. boulardii with molasses and animal serum. methods: a fully-crossed factorial design contain 5%, 10% and 20% of molasses (m) with 0, 1% and 5% animal serum (s) was used in this study. the ph of all culture medias were adjusted to 5.6 with acetic acid. the seed was ...

there is a great call for using microbial bio-decaffeination approach to remove caffeinefrom caffeinated products and industrial wastes. we aimed in this study to screen strainsof yeasts which exhibit high caffeine tolerance and to investigate the bio-degradation ofcaffeine under growth conditions. sixteen yeast strains were isolated from the cultivatedtea soils collected from sites of northern...

Nowadays, in the beer sector, there is a wide range of products, which differ for technologies adopted, raw materials used, and microorganisms involved fermentation processes. The quality directly related to activity yeasts that, addition production alcohol, synthesize various compounds that contribute definition compositional organoleptic characteristics. microbrewing phenomenon (craft revolut...

BACKGROUND The evolutionarily conserved Ccr4-Not and Bur1/2 kinase complexes are functionally related in Saccharomyces cerevisiae. In this study, we further explore the relationship between the subunits Not4p and Bur2p. METHODOLOGY/PRINCIPAL FINDINGS First, we investigated the presence of post-translational modifications on the Ccr4-Not complex. Using mass spectrometry analyses we identified ...

using probiotics can control pathogens by a variety of mechanisms. probiotics can promote growth performance and have, therefore, become increasingly important in the aquaculture industry. convict cichlid belongs to the family of cichlidae and is known for its rapid development in laboratory conditions and is suitable for behavioral examinations. the aim of this study was to evaluate the effect...

Sphingolipid biosynthesis and breakdown in yeast share many homologies in their pathways with higher eukaryotes (Dickson, R. C. 1998. Sphingolipid functions in Saccharomyces cerevisiae: comparison to mammals. Annu. Rev. Biochem. 67: 27-48). In mammals, ceramide can be generated through hydrolysis of sphingomyelin catalyzed by sphingomyelinase (SMase). To date, as many as five SMases have been i...