Study on Extraction of the Polysaccharides from Mycelium of Tremella auramtialba by NaOH Hydrolysis and Ultrafiltration

Abstract

Abstract: NaOH hydrolysis and ultrafiltration were applied to extract of polysaccharides from the mycelium of Tremella auramtialba. The orthogonal test showed that the optimal conditions were: NaOH concentration 0.75mol/L, volume of NaOH solvent 30 times as the weight of mycelia, hydrolysis temperature 40℃, and hydrolysis time 4 hours. The extract rate of polysaccharides by NaOH hydrolysis and ultrafilter was 57.7% and total product yield 4.5%, which were both higher than those aqueous extract method.

Key words: Tremella aurantialba, polysaccharides, alkali extract, ultrafilter

ZHANG Zhi-Cai, LIU Gao-Qiang, ZHANG Ke-Chang, QU Wei-Jing, ZHANG Wen, DENG Yun-Xia. Study on Extraction of the Polysaccharides from Mycelium of Tremella auramtialba by NaOH Hydrolysis and Ultrafiltration[J]. FOOD SCIENCE, 2005, 26(11): 145-148.

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Study on Extraction of the Polysaccharides from Mycelium of Tremella auramtialba by NaOH Hydrolysis and Ultrafiltration

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