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https://www.selleckchem.com/products/calcium-folinate.html Freeze-dried cell factories led to improved results as compared with non-freeze dried. When lactase was substituted with L. casei, ethanol and lactic acid were produced simultaneously at high concentrations, but in a much longer fermentation time. The cell factories can be considered as models for white biotechnology using lactose containing raw materials. This suggested cell factory model can be applied for other bioconversions using the appropriate enzymes and cells, in the frame of White Biotechnology without genetic modification.Enzyme immobilization provides substantial advantages in terms of improving the efficiency of enzymatic process as well as enhancing the reusability of enzymes. Phasins (PhaPs) are naturally occurring polyhydroxyalkanoate (PHA)-binding proteins, and thus can potentially be used as a fusion partner for oriented immobilization of enzymes onto PHA supports. However, presently available granular PHA supports have low surface-area-to-volume ratio and limited configurational flexibility of enzymatic reactions. In this study, we explored the use of electrospun polyhydroxybutyrate (PHB) nanofibers as an alternative support for high density immobilization of a PhaP-fused lipase. As envisioned, the electrospun PHB nanofibers could anchor 120-fold more enzyme than PHB granules of the same weight. Furthermore, the enzymes immobilized onto the PHB nanofibers exhibited markedly higher stability and activity compared to when immobilized on conventional immobilization supports. Our approach combines the advantageous features of nanofibrous material and specificity of biomolecular interaction for the efficient use of enzymes, which can be widely adopted in the development of various enzymatic processes.β-glucosidase causes hydrolysis of β-1,4-glycosidic bond in glycosides and oligosaccharides. It is an industrially important enzyme owing to its potential in biomass processing applications. In thi

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