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Production of biodegradable polymer by A. eutrophus using volatile fatty acids from acidified wastewater

机译:使用酸化废水中的挥发性脂肪酸由嗜酸碱曲霉生产可生物降解的聚合物

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摘要

A new process of production of biodegradable polymer poly(hydroxyalkanoates) (PHAs) was studied with Alcaligenes eutrophus using volatile fatty acids (VFA) from acidified wastewater. The process was divided into two distinct stages, cell growth with fructose and PHAs polymerization with VFA. Cell growth was much better with fructose than with VFA. After using fructose for growth, A. eutrophus utilized VFA as the substrate to polymerization. The concentration of PHAs reached 16.7 g/l by fed-batch cultivation. Using VFA from acidified wastewater, A. eutrophus had a good performance for polymerization, and the concentration of cell and PHAs in broth reached 15.9 and 9.6 g/l, respectively.
机译:研究了使用酸化废水中的挥发性脂肪酸(VFA)的嗜碱产碱杆菌(Alcaligenes eutrophus)研究了一种新的可生物降解的聚合物聚(羟基链烷酸酯)(PHA)生产方法。该过程分为两个不同的阶段:果糖使细胞生长和VFA使PHAs聚合。果糖比VFA的细胞生长要好得多。使用果糖进行生长后,真金曲霉利用VFA作为聚合底物。通过分批补料培养,PHA的浓度达到16.7 g / l。使用酸化废水中的VFA,真人草具有良好的聚合性能,肉汤中细胞和PHA的浓度分别达到15.9和9.6 g / l。

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