摘要
以小麦淀粉为原料,采用压热法和酸解法提取抗性淀粉,通过单因素试验对这2种方法中的影响因子进行研究,并通过正交试验确定压热法和酸解法生产小麦抗性淀粉的最佳工艺条件,为抗性淀粉工业化生产提供参考依据。结果表明:压热法中影响抗性淀粉生产的因素主次为压热温度>淀粉乳浓度>放置时间>压热时间;压热法生产小麦抗性淀粉的最佳工艺条件为淀粉乳浓度30%,120℃压热处理40min,4℃放置24h,小麦抗性淀粉的平均产率达7.26%;酸解法中影响抗性淀粉生产的因素主次为盐酸用量>沸水浴时间>淀粉乳浓度>酸解时间;酸解法生产小麦抗性淀粉的最佳工艺条件为盐酸用量2%,淀粉乳浓度为15%,酸解时间2h,沸水浴时间2.5h,小麦抗性淀粉的平均产率达7.74%。
In this study,wheat starch was used for the purpose of investigating resistant starch preparation technologies,which included the autoclaving method and the acid hydrolysis method.Optimal technical parameters of producing wheat resistant starch in these two methods with single factor test,and orthogonal test.The results showed that the primary and secondary sequence of influence factors in resistant starch production with autoclaving method was autoclaving temperature,starch concentration,retrogradation time and autoclaving time respectively.The optimal parameters for wheat resistant starch production were that 30% starch concentration,pH value 6.0,120 ℃ heated temperature and last for 40 minutes,4 ℃ placement temperature and last for 24 hours,the average yield of wheat resistant starch was 7.26%.The primary and secondary sequence of influence factors in resistant starch production with acid hydrolysis method was that acid dosage,boil treatment time,starch concentration and acid hydrolysis time.The optimal parameters for wheat resistant starch production were that,2% acid dosage,15% starch concentration,2 hours acid hydrolysis time,2.5 hours boil treatment time,4 ℃ placement temperature and last for 24 hours,and the average yield of wheat resistant starch was 7.74%.
出处
《石河子大学学报（自然科学版）》
CAS
2010年第4期397-403,共7页
Journal of Shihezi University(Natural Science)
基金
新疆兵团博士基金项目(ZD2007JC05)
关键词
小麦
抗性淀粉
压热法
酸解法
wheat
resistant starch
autoclaving method
acid hydrolysis method
