Polysacchriade Isolated from Morchella esculenta（L.）Pers. Fermented in Tobacco Matrix and Its Effects on Smoking Quality

The pure mycedia of Morchella esculenta（L.）Pers. were purified from the wild strains. Polysaccharide extract was obtained from the mycedia fermented in tobacco matrix by solid-state fermentation at 22℃ for 9 days. The content of polysaccharide, the volatiles, the products of pyrolysis and the effects on smoking quality were studied. The results showed that the content of polysaccharide was 42.6%, the main volatiles were long-chain acids and their esters, and none of PAHs was yielded in the pyrolysis process. The flavoring test showed that this polysaccharide extract could effectively improve the smoking quality.