Study On The Brewing Technology Of Lentinus Edodes Vinegar

Lentinus edodes have a large output in china, they are rich in nutrients, such as high-protein,low-fat and various amino acids. Fermenting vinegar with lentinus edodes not only solves the storage of lentinus edodes,but also meets nutritional needs.We need to study on lentinus edodes vinegar because brewing technology is not successful. So we use dry lentinus edodes as the main material to study the extraction process, including alcoholic fermentation and acetic fermentation, aging and clarification.The results were as follows:1. Compared with different methods:the hot water extraction, enzyme extraction and ultrasonic extraction, the results showed that the best method was ultrasonic extraction, the optimum parameters were the ratio of water and material was 1:25,extraction temperature was 60℃,ultrasonic power was 300 w,30min.2. The best parameters of alcohol fermentation:the inoculation of yeast was 0.03%, beginning sugar14%, fermentation temperature was26℃, fermentation time was 7d.3. The optimal technological parameters of acetic fermentation:the inoculation of bacterium acetic was 12%, beginning alcohol was 7%(v/v), fermentation temperature was 28℃, finally we got the acid was 5.32%.4. Compared with aged 3 months aged 6 months,aged by ultrasonic, the results showed that the best method of aged was ultrasonic.5.Compared with the different clarification methods:Gelatin-tannin,Chitosan and Celite,the best method of clarification is:adding 0.45% Celite, the clarification is best...