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Pullulan Production From Synthetic Medium by a New Mutant of Aureobasidium Pullulans

Pullulan Production From Synthetic Medium by a New Mutant of Aureobasidium Pullulans

Guoqiang Chen, Jiming Wang, Yulong Su, Youshuang Zhu, Ge Zhang, Hongwei Zhao, Haobao Liu, Ying Yang, Rui Nian, Haibo Zhang, Yuxi Wei, Mo Xian

Prep Biochem Biotechnol. 2017 Nov 26;47(10):963-969.

PMID: 28718734

Abstract:

Pullulan with different molecular-weight could be applied in various fields. A UV-induced mutagenesis Aureobasidium pullulans UVMU6-1 was obtained from the strain A. pullulans CGMCC3.933 for the production of low-molecular-weight pullulan. First, the obtained polysaccharide from A. pullulans UVMU6-1 was purified and identified to be pullulan with thin-layer chromatography, Fourier transform infrared, and nuclear magnetic resonance. Then, culture medium and conditions for this strain were optimized by flask fermentation. Based on the optimized medium and culture conditions (pH 4, addition of 4 g/L Tween 80 for 96 hr of cultivation), continuously fermentation was performed. The highest pullulan production and dry biomass was 109 and 125 g/L after fermentation for 114 hr, respectively. The average productivity was about 1 g/L/hr, which was intensively higher than the previous reported. This study would lay foundations for the industrial production of pullulan.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP9057027	Pullulan from Aureobasidium pullulans		9057-02-7	Price

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