The impacts of nicotinamide and inositol on the available cells and product performance of industrial baker's yeasts

Abstract A suitable nutrient supply, especially of vitamins, is very significant for the deep display inherent genetic properties microorganisms. Here, using chemically defined minimal medium (MM) yeast, nicotinamide and inositol were confirmed to be more beneficial performance two industrial baker's yeasts, a conventional high-sugar-tolerant strain. Increasing or proper levels could enhance both strains on cell growth activity product performance, including trehalose accumulation leavening performance. The key enzymes (PCK, TPS) content intermediate metabolites (G6P, UDPG) in synthesis pathway promoted by moderate supply inositol. That also proved that an appropriate amount niacinamide transcription longevity-related genes ( PNC1 , SIR2 ), concentration altered phospholipid composition cells, namely, phosphatidylinositol phosphatidyl choline. Furthermore, after adjusting choline ratio, resulting directly changes cells. While responded different ratio probably due their specific physiological characteristics. Such effects increased natural media, molasses corn starch hydrolyzed sugar media. Meanwhile, such adjustment lessen inhibition excess tested However, molasse, phenomenon was not observed since there higher Ca 2+ it. results indicated factors, as other found out from simple effective measure use improving recipe media at least yeast.