【摘要】 以荞麦粉为材料,采用酸解和水热处理方法系统研究了荞麦抗性淀粉的制备工艺条件及添加荞麦抗性淀粉对小麦粉流变学特性的影响。研究结果表明,荞麦抗性淀粉的制备工艺条件为料水比1∶10、稀盐酸用量3%、酸解时间2.0h、沸水浴时间3.5h、4℃冷藏时间42h。荞麦抗性淀粉具有糊化温度较低,糊度稠度低,热糊稳定性和冷糊稳定性较好等特点。添加荞麦抗性淀粉,面粉的黏度参数、粉质参数和拉伸参数均有明显的降低趋势,更适合应用于饼干、糕点等弱筋类面食品。更多还原

【Abstract】 The processing conditions for preparation of buckwheat resistant starch were studied by means of acid-modification and heat-moisture.The effect of buckwheat resistant starch on rheological properties of flour was also discussed.The results showed that the processing conditions for preparation of buckwheat resistant starch were: ratio of raw material and water 1∶10,dosage of hydrochloric acid 3%,acid-modification time 2.0 h,heating time 3.5 h and cold storage time 42 h under 4℃.Buckwheat resistant starch had characteristics of low pasting temperature,low consistency and high stability of hot and cold paste.When adding buckwheat resistant starch,the farinograms,extensograms and pasting parameters of dough all trended to be lowered significantly,which could be more suitable for weak-gluten wheaten food such as biscuit,cake and so on.更多还原