Study On The Technology Of Pulped By Soymilk And Dreg Repeated Curing And Coagulated By Fermented Soybean Processing Waste Water

Tofu is a kind of traditional food in our China.As the representative of semi-dehydrated tofu in Xiang-style,which is coagulated by fermented soybean processing waste water,Shaoyang semi-dehydrated tofu has tight structure,high water hold rate and good springiness,also has the special flavor of fermented soybean processing waste water.At this stage,the processing technology of tofu which coagulated by fermented soybean processing waste water mostly is manual,and it lacks of standardization,also its parameter is uncertain.At the same time,it is not enough to control the best condition of coagulation used the pH as the indicators,which causes the process of soy products cannot adjust the industrial production easily.This paper discusses the effect of the processing technology of pulped by soymilk-dreg repeated curing and coagulated by fermented soybean processing waste water on the quality of tofu,and also optimize the process.Then takes the project of annual production for 10,000 tons of semi-dehydrated tofu of Hunan Jiusheng food co.,LTD as example,the process design and equipment layout and the operating procedures for pulped by soymilk-dreg repeated curing and coagulated by fermented soybean processing waste water was done.The main finds are as follows:1.The best production parameters of pulped by soymilk-dreg repeated curing are as follows: the ratio of the first soymilk and second soymilk 6:2,the ratio of first dregs and water 1:2,the heating temperature of mixed soymilk 95?,the heating time of mixed soymilk 3 min,and the tofu's sensory evaluation score is 73.30 ? 0.47,protein content is 7.43 ? 0.05 g/100 g,and other index is good.2.The process design,equipment design,equipment debugging and the operating procedures of the process of pulped by soymilk-dreg repeated curing has been completed in the project of annual production for 10,000 tons of semi-dehydrated tofu of Hunan Jiusheng food co.,LTD.After the project putting into production,the equipment runs steadily,the control of the process parameters is accurate,the protein denatures completely,the product quality is stable,and various performance indexes reach the design standards.3.The best production parameters of coagulated by fermented soybean processing waste water are as follows: the total acid of fermented soybean processing waste water 5.30 g/kg,amount of fermented soybean processing waste water 29% and the coagulate temperature 76 ?,coagulation time 35 min,and the tofu's sensory evaluation score is 76.20 ? 0.36,springiness is 0.95 ? 0.01,and other index is good.4.The process design,equipment design and equipment debugging of the process of coagulated by fermented soybean processing waste water have been completed in the project of annual production for 10,000 tons of semi-dehydrated tofu of Hunan Jiusheng food co.,LTD,and the operating procedures of the fermentation,blend and automatic coagulation of fermented soybean processing waste water also have been finished.After the project putting into production,the equipment runs steadily,and it realizes the completely automatic coagulation by fermented soybean processing waste water.At the same time,the protein coagulation state is good and the production rate is high,the product quality is stable,and various performance indexes reach the design standards.