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Production and Rheological Studies of Microalgal Extracellular Biopolymer from Lactose Using the Green Alga Neochloris oleoabundans

机译:使用绿藻新绿藻油多糖从乳糖生产微藻细胞外生物聚合物的流变学研究

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摘要

It was discovered that a green alga strain had the capacity of producing up to 5 g/L high viscosity bio polymers from lactose under mixotrophic cultivation con ditions. The weight-average molecular weight of the polymer was determined to be around 505,000 Da. The ability of this strain to utilize lactose for biopolymer pro duction promises the potential of valuable biopolymer production from cheese whey, a waste liquor stream of the cheese industry that contains approximately 50 g/L lactose. Using Plackett-Burnman experiment design and statistical analysis, it was determined that the major parameters affecting biopolymer production were the concentrations of sodium nitrate and lactose and temperature as well. Further studies on polymer characterization, production optimiza tion, and applications are under way.
机译:发现在混合营养培养条件下,绿藻菌株具有从乳糖产生高达5g / L的高粘度生物聚合物的能力。测得该聚合物的重均分子量为约505,000Da。该菌株利用乳糖用于生物聚合物生产的能力有望从干酪乳清中有价值的生物聚合物生产潜力,干酪乳清是干酪工业的废液,其中含有约50 g / L乳糖。使用Plackett-Burnman实验设计和统计分析,确定影响生物聚合物生产的主要参数是硝酸钠和乳糖的浓度以及温度。关于聚合物表征,生产优化和应用的进一步研究正在进行中。

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