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首页> 外文期刊>Journal of King Saud University >Polyhydroxyalkanoate production from crude glycerol by newly isolated Pandoraea sp.
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Polyhydroxyalkanoate production from crude glycerol by newly isolated Pandoraea sp.

机译：通过新分离的 Pandoraea sp从粗甘油生产聚羟基链烷酸酯。

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A new bacterial strain was isolated from Atlantic rainforest in Brazil for polyhydroxyalkanoate (PHA) production utilizing crude glycerol from biodiesel industry (CG) and it was identified as Pandoraea sp. MA03. Shake flask experiments were performed at 10–50 g L ?1 carbon source and showed the best values of poly(3-hydroxybutyrate) (P3HB) production from CG cultivations compared to pure glycerol, with a polymer accumulation ranging from 49.0% to 63.6% cell dry weight (CDW). The results obtained from this study showed a positive effect of contaminant NaCl on P3HB synthesis up to 30 g L ?1 CG. Poly(3-hydroxybutyrate- co -3-hydroxyvalerate) [P(3HB- co -3HV)] production was obtained from CG plus propionic acid with up to 25.9 mol% 3HV. Since it is interesting the utilization of CG for obtaining added-value products along with biodiesel, this study reported a novel and promising PHA-producing bacterial strain as an additional effort to enhance the viability of a sustainable industry based on biofuels and biopolymers.
机译：从巴西的大西洋雨林中分离出了一种新的细菌菌株，利用生物柴油行业（CG）的粗甘油生产聚羟基链烷酸酯（PHA），并将其鉴定为Pandoraea sp。 MA03。摇瓶实验是在10–50 g L？1碳源下进行的，显示了与纯甘油相比，CG培养产生的聚（3-羟基丁酸酯）（P3HB）的最佳值，聚合物积累范围为49.0％至63.6％。细胞干重（CDW）。从该研究获得的结果表明，高达30 g L？1 CG的NaCl污染物对P3HB的合成具有积极作用。聚（3-羟基丁酸酯-co-3-羟基戊酸酯）[P（3HB-co -3HV）]的生产是由CG加丙酸和最高25.9 mol％3HV的丙酸获得的。由于有趣的是利用CG来获得与生物柴油一起获得的增值产品，因此本研究报告了一种新颖且很有前途的PHA产生细菌菌株，作为增强基于生物燃料和生物聚合物的可持续产业生存力的额外努力。

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