食品工业科技2012，Vol.33Issue(10)：85-87,100,4.
枇杷蜂蜜中饴糖的近红外光谱检测
Detection of maltose adulteration in loquat honey by near infrared spectroscopy
摘要
Abstract
Near infrared spectroscopy（NIR）was used to detect pure loquat honey（30 samples）and loquat honey adulterated with maltose（120 samples at 30 different rates as 1%,2%…30%）.Spectral datas were first pretreated by TQ Analyst v6,and a qualitative model was established to discriminate the two sorts of honey,then partial least squares（PLS）model and principal component regression（PCR）model were established to determine maltose content in honey.And finally models were applied to predict maltose content in honey samples.Results indicated that both of the discriminant analysis models（one was raw spectrum and one was pretreated by first derivative）could discriminate the two sorts of honey clearly.The correlation coefficient of PLS and PCR models were 0.99771 and 0.98654,respectively.R2 between the experimental values and simulated values of the honey samples for prediction of PLS and PCR models were 0.992 and 0.974,respectively.It could be concluded that NIR could not only detect maltose in honey,but also determine maltose content in honey according to chemometrics methods,which would provide a basis for cracking down on honey adulteration.关键词
蜂蜜/饴糖/近红外光谱/偏最小二乘法/主成分回归法Key words
honey/maltose/near infrared spectroscopy(NIR)/PLS/PCR分类
轻工纺织引用本文复制引用
魏小梅,邵玉芳,应寻源..枇杷蜂蜜中饴糖的近红外光谱检测[J].食品工业科技,2012,33(10):85-87,100,4.基金项目
国家公益性行业（农业）专项 （）
