摘要
酱香型白酒以高粱为主要原料发酵而成,高粱中的淀粉,尤其是支链淀粉的含量对于酱香型白酒的产品质量起着至关重要的作用,因此针对其总淀粉、直链淀粉与支链淀粉的检测手段研究也应受到人们高度的重视。傅里叶变换近红外光谱法因其准确性高、稳定性好以及快速无损检测等特点,在建立总淀粉、直链淀粉和支链淀粉同时定量分析模型方面得到了较为成功的应用。结果表明,总淀粉、直链淀粉以及支链淀粉的定量分析模型相关系数分别达到0.954 9、0.923 6和0.940 1,交互验证均方根误差分别为1.027 1、0.088 5和1.264 6。可见,基于近红外光谱技术的定量分析方法可适用于高粱中总淀粉、直链淀粉与支链淀粉的同时定量分析。
The content of starch,especially amylopectin,in sorghum seeds are extremely important to the quality of Moutai- flavor liquor which was fermented from sorghum,yet the research on determination for starch,amylose and amylopectin is paid great attention. Fourier transformed near infrared spectroscopy（ FT- NIRS）,due to its accuracy,stability,quickness and non- destructiveness,was successfully applied to setup a simultaneous determination system of starch,amylose and amylopectin. The results showed that the correlation coefficients of starch,amylose and amylopectin quantitative models were0. 954 9、0. 923 6 and 0. 940 1,while the root mean square errors of cross validation were 1. 027 1、0. 088 5 and 1. 264 6. Thus it was concluded that FT- NIR is absolutely appropriate for the analysis job.
出处
《粮油食品科技》
2016年第2期60-64,共5页
Science and Technology of Cereals,Oils and Foods
基金
贵州省工业攻关项目(黔科合GY字[2014]3031)
关键词
直链淀粉
支链淀粉
傅里叶变换近红外光谱
定量分析
amylose
amylopectin
Fourier transform near infrared spectroscopy（FT-NIR Spectroscopy）
quantitative analysis
