The yogurt preparation process of Polygonatum sibiricum and Dioscorea polystachya Turczaninow.cv.Tiegun was studied.Single factor experiments were conducted to investigate the effects of Polygonatum sibiricum syrup,Dioscorea polystachya Turczaninow.cv.Tiegun syrup,white sugar addition,and fermentation time on the physicochemical properties of yogurt of Polygonatum sibiricum and Dioscorea polystachya Turczaninow.cv.Tiegun.Based on the sensory evaluation results,the response surface methodology was used to optimize the preparation process of yogurt of Polygonatum sibiricum and Dioscorea polystachya Turczaninow.cv.Tiegun.The results showed that the optimal process of Polygonatum sibiricum and Dioscorea polystachya Turczaninow.cv.Tiegun was Polygonatum sibiricum syrup 6.00%,Dioscorea polystachya Turczaninow.cv.Tiegun syrup 8.00%,white sugar 7.00%,and a fermentation time of 10 hours.The sensory score reached 86.93 points.Under these conditions,the yogurt of Polygonatum sibiricum produced was delicated in texture,uniform in quality,rich in Polygonatum sibiricum and Dioscorea polystachya Turczaninow.cv.Tiegun flavor,and coordinated with the yogurt flavor,with high nutritional value.
关键词
黄精/铁棍山药/理化性质/感官评分/响应面法/酸奶制备工艺
Key words
Polygonatum sibiricum/Dioscorea polystachya Turczaninow.cv.Tiegun/physicochemical property/sensory score/response surface method/yogurt preparation process