Research on Response Surface Optimization of Microwave-Assisted Sugar Osmosis for Preserved Hedychium coronarium
In order to explore the edible value of Hedychium coronarium and make full use of its resources,this study prepared a preserved Hedychium coronarium with antioxidant activity by the microwave-sugar-infiltration method from fresh Hedychium coronarium.With the evaluation index of sugar content and sensory score,the preparation of preserved Hedychium coronarium was optimized through single-factor-and-response surface test.The results showed that the best preparation conditions for Hedychium coronarium were as follows:sugar quality fraction of 20％,microwave time of 293 seconds,citric acid addition of 0.27％,sugar time of 55 minutes,preserved Hedychium coronarium shape intact,golden sticky,sour,sweet,moderately ginger spicy,with light floral aroma,sugar content of 56.2％,and water content of 14.1％,meeting the requirements of the national standard.Compared to fresh Hedychium coronarium,the 1,1-diphenyl-2-picrylhydrazyl(DPPH)and hydroxyl free radical scavenging rates were a little lower.The short heating time and rapid sugar osmosis of microwave technology assist in retaining the floral aroma and natural functional components of Hedychium coronarium.The preserved Hedychium coronarium shows potential free radical-scavenging properties.
万方数据
维普
