Rhizopus oryzae Effects on Regular Composition and the Main Aroma Components of Tobacco

In this study, the effects of aroma-producing fungi Rhizopous oryzae on conventional composition and aroma components of tobacco leaves were investigated with the method of fermenting tobacco smails for 7 days in shaker, 120 r/min 28℃.The results indicated that variation coefficient of total sugar, reducing sugar, starch and chloridion was significant and total alkaloids, nitrogen, protein and potassium was less significant. Aroma components concentration changed significantly but not species, there was 18 aroma components increased,such as 4-pyridinecarboxaldehyde,1-penten-3-one. Among them, 2-methyltetrahydrfuran-3-one and ethyl hexadecanoate increased significantly. Conclusion that it could improve part of the tobacco aroma matters content which was treated by R. oryzae, and provide a basis for screening tobacco aroma-producing microorganisms.