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Biosynthesis of xanthan gum from the fermentation of milk whey: productivity and viscosity

机译:乳清发酵中黄原胶的生物合成:生产率和粘度

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Xanthan is a polysaccharide synthesized by Xanthomonas bacteria and of extreme commercial importance as a microbial polysaccharide. The aim of this work was to produce xanthan using mozzarella cheese whey as substrate, by different isolates natives the Xanthomonas. The alternative medium for production was milk whey, urea and K2HPO4. The xanthan maximum productivity was 21.91 g L-1. Analysis of apparent viscosity was made in solutions of gum at 0.5-2.0%, 25-65 ?oC with shear rate of 25-1000 s-1.The maximum viscosity found was 57.30 mPa.s. The isolates demonstrate capacity to degrade the lactose and to produce xanthan, being constituted an alternative for the industrial production.
机译:黄原胶是由黄单胞菌属细菌合成的多糖,作为微生物多糖具有极其重要的商业意义。这项工作的目的是利用马苏里拉干酪乳清作为底物,通过不同的土生黄单胞菌分离物生产黄原胶。生产的替代培养基是乳清,尿素和K2HPO4。黄原胶的最大生产率为21.91 g L-1。在口香糖溶液中,在0.5-2.0%,25-65°C,剪切速率为25-1000 s-1的条件下对表观粘度进行了分析,发现最大粘度为57.30 mPa.s.分离物表现出降解乳糖和生产黄原胶的能力,是工业生产的替代物。

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