Xylitol dehydrogenase
d-Xylose Metabolism in Hypocrea jecorina: Loss of the Xylitol Dehydrogenase Step Can Be Partially Compensated for by lad1-Encoded l-Arabinitol-4-Dehydrogenase
... jecorina xylitol dehydrogenase fragment was am- plified and used to isolate a ...alcohol dehydrogenase family, show- ing highest sequence identity to the xylitol dehydrogenase of ...
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Engineering of xylose reductase and overexpression of xylitol dehydrogenase and xylulokinase improves xylose alcoholic fermentation in the thermotolerant yeast Hansenula polymorpha
... to xylitol using xylose reductase, EC ...step, xylitol is oxi- dized to xylulose with a strictly NAD-dependent xylitol dehydrogenase, EC ...of xylitol [3-8]. Xylitol produc- tion ...
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Xylose fermentation efficiency of industrial Saccharomyces cerevisiae yeast with separate or combined xylose reductase/xylitol dehydrogenase and xylose isomerase pathways
... and xylitol dehydrogenase (XDH) ...to xylitol, preferably using NADPH over NADH as cofactor; xylitol is then oxidized to xylulose by XDH, which uses only NAD + as ...
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Comparing the xylose reductase/xylitol dehydrogenase and xylose isomerase pathways in arabinose and xylose fermenting Saccharomyces cerevisiae strains
... Background: Ethanolic fermentation of lignocellulosic biomass is a sustainable option for the production of bioethanol. This process would greatly benefit from recombinant Saccharomyces cerevisiae strains also able to ...
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Comparison of the xylose reductase-xylitol dehydrogenase and the xylose isomerase pathways for xylose fermentation by recombinant Saccharomyces cerevisiae
... Background: Two heterologous pathways have been used to construct recombinant xylose- fermenting Saccharomyces cerevisiae strains: i) the xylose reductase (XR) and xylitol dehydrogenase (XDH) pathway and ...
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Induction of D-xylose uptake and expression of NAD(P)H-linked xylose reductase and NADP + -linked xylitol dehydrogenase in the oleaginous microalga Chlorella sorokiniana
... of xylitol was produced during the growth of ...of xylitol is not solely a consequence of coenzyme imbalance and some metabolic factors may also cause its production, such as the activity ratios of XR and ...
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Heterologous expression of Spathaspora passalidarum xylose reductase and xylitol dehydrogenase genes improved xylose fermentation ability of Aureobasidium pullulans
... oil production was measured by the method of Liu et al. [2]. Sediments of the culture were mixed thoroughly with 10 mL of a 1:1 methanol–chloroform solution. These sediments were obtained from 50 mL of culture broth by ...
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L-lactic acid production from D-xylose with Candida sonorensis expressing a heterologous lactate dehydrogenase encoding gene
... – xylitol dehydrogenase ...to xylitol with a NAD(P)H-dependent xylose reductase (XR encoded by XYL1), and xylitol further oxidised to D-xylulose with a NAD + -dependent xylitol ...
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Phenotypic selection of a wild Saccharomyces cerevisiae strain for simultaneous saccharification and co-fermentation of AFEX™ pretreated corn stover
... and xylitol dehydrogenase (D) activities were determined from the indicated strain extracts in the presence of co-factors (NADH or NADPH for XR; NAD + or NADP + for ...
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The potential use of xylitol in glucose 6 phosphate dehydrogenase deficiency anemia
... deficient red cells. Xylitol was explored as a potential agent for treatment of hemolysis in patients with G6PD-deficiency. Intracellular GSH (glutathione, reduced) was first converted to its oxidized form by ...
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Bronchoscopic assessment of airway retention time of aerosolized xylitol
... deposition and retention time of aerosolized xylitol. A few limitations must be acknowledged. First, this study was done in healthy volunteers. In patients with lung disease, such as cystic fibrosis and those who ...
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Safety assessment of inhaled xylitol in mice and healthy volunteers
... is xylitol, a five- carbon sugar that has low transepithelial permeability, is poorly metabolized by bacteria and can lower the salt concentration of both cystic fibrosis (CF) and non-CF epi- thelia in vitro ...
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Hydrogenase activity in catalase positive strains of Campylobacter spp
... coli either Lactate dehydrogenase 236 18.2 membrane vesicles or crude cell extracts had Hydrogenase 212 146 hydrogenase and formate dehydrogenase specif- Formate dehydrogenase ic activit[r] ...
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Computational analysis on protein-ligand interaction of xylitol-phosphate dehydrogenase enzymes for xylitol production
... on xylitol production as an alternative sugar for healthy ...2012). Xylitol can also improve the storage properties, taste, and colour o f food product (Ur-Rehman et ...industry, xylitol is the ...
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Deep neural network method for the prediction of xylitol production
... In accordance with this, a powerful tool needed to manipulate this microbial host (E. Coli) in order to find the best way to produce xylitol with higher value by considering all the effect that can affect the ...
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Effected of Xylitol on Pneumoniae Isolated from Province/Iraq
... modification. Xylitol (5%) was added to samples in wells of sterile polystyrene 96 well-flat bottom tissue culture plate, after fixed with sodium acetate for half an hour and all steps done as the same steps that ...
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HISTOCHEMCAL AND BIOCHEMICAL EFFECTS OF MELATONIN ON PANCREATIC β-CELLS OF STREPTOZOTOCIN-TREATED DIABETIC RATS
... Glucose-6-phosphate dehydrogenase (G-6-PDH) catalyzes the first step of the pentose phosphate pathway, producing reduced nicotinamide adenine dinucleotide (NADPH), the principal cellular reductant in all cell ...
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Design of the Xylitol for Adult Caries Trial (X-ACT)
... the Xylitol for Adult Caries Trial (X-ACT), to test the hypothesis that use of xylitol lozenges will reduce dental caries incidence in caries- active ...of xylitol had appeared ...a xylitol ...
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Michael hydratase alcohol dehydrogenase or just alcohol dehydrogenase?
... alcohol dehydrogenase (MhyADH) from Alicycliphilus denitrificans was previously identified as a bi-functional enzyme performing a hydration of α , β -unsaturated ketones and subsequent oxidation of the formed ...
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Microbial and Bioconversion Production of D-xylitol and Its Detection and Application
... As an effective and safe tooth-decay-preventive agent, D-xylitol is used in chewing gums, mouth rinse [37] and toothpaste [38, 39]. Streptococcus mutans is most notably associated with human dental decay, by ...
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