Tremella Polysaccharides Extraction Optimization and Correlation between Yield and Texture

With white fungus as raw materials，tremella polysaccharide was extracted by use of hot water extraction method.Hot water extraction process parameters of tremella polysaccharide were optimized through orthogonal test.Relationship between polysaccharide yield and tremella fruiting body hardness or extract viscosity was analyzed.The optimal extraction conditions were found to be an extraction duration of 4 h at 90 ℃ with a water/material ratio of 60∶1（v/w）.Through Pearson correlation analysis，content of tremella polysaccharides had positive correlation to the extract viscosity，but it had not significant correlation to tremella fruiting body hardness.