超高压对小麦RS3型抗性淀粉形成影响

摘要

以小麦淀粉为原料，利用超高压结合酶法制备RS3型抗性淀粉，以其得率为考察指标，研究超高压作用对抗性淀粉形成的影响。研究结果表明，超高压作用对RS3型抗性淀粉形成的最佳工艺条件为：淀粉乳浓度20%，超高压压力450 MPa，保压时间10 min，作用温度25℃，小麦RS3的平均得率达9.85%。%Wheat resistant starch was prepared by ultra–high pressure combined with enzymatic method. With the yield of RS3 as indexes,the effect of ultra–high pressure on the formation of resistant starch was studied. Results showed that,the optimal conditions for the preparation of resistant starch were:20%starch concentration,ultra–high pressure 450 MPa,pressure holding time 10 min and treatment temperature 25℃,the average yield of RS3 was up to 9.85%.