食品与发酵工业2017，Vol.43Issue(4)：216-221,6.DOI:10.13995/j.cnki.11-1802/ts.201704034
基于中红外光谱技术的羟丙基淀粉中掺假原淀粉的快速鉴别
Rapid identification of hydroxypropyl starch adulteration by mid-infrared spectroscopy
摘要
Abstract
Mid-infrared spectroscopy was used to measure adulterated hydroxypropyl corn starch.Effect of mathematical processing methods,such as the number of derivation and the number of smoothing points,on the prediction model of adulterated hydroxypropyl corn starch built by partial least squares (PLS) was studied.The model (using first derivative with 5 smoothing points) in the calibration set gave satisfactory performance with an R2c value of 0.984 0 and root-mean-square error of 3.723％.The correlation coefficient between the experimental values of various adulteration levels and the predicated values calculated by the best predication model was 0.980 0.The results indicated that it is possible to use mid-infrared spectroscopy combined with PLS in rapid identification of hydroxypropyl corn starch adulterated with corn starch.关键词
羟丙基淀粉/中红外光谱/掺假/偏最小二乘法Key words
hydroxypropyl starch/mid-infrared spectroscopy/adulteration/partial least squares引用本文复制引用
张月,李沙,钟金锋,梁慧培,覃小丽..基于中红外光谱技术的羟丙基淀粉中掺假原淀粉的快速鉴别[J].食品与发酵工业,2017,43(4):216-221,6.基金项目
国家自然科学基金项目(31601430,31501446) （31601430,31501446）
重庆市基础科学与前沿技术研究专项(cstc2015jcyjA80013) （cstc2015jcyjA80013）
西南大学第九届本科生科技创新基金立项项目(20161702006) （20161702006）
