食品工业科技2018，Vol.39Issue(7)：255-258,322,5.DOI:10.13386/j.issn1002-0306.2018.07.045
近红外光谱结合偏最小二乘法快速测定糖果中水分含量
Rapid determination of moisture content in candy by near infrared spectroscopy combined with partial least squares
摘要
Abstract
A rapid and accurate method for the determination of moisture content in candy was established by near-infrared spectroscopy(NIR) combined with partial least squares(PLS).The near infrared diffuse reflectance spectra of 116 candies were collected in the spectral range of 12500～3600 cm-1,and the moisture content were measured by the method of hypobaric drying.By comparing the influence of different parameters on modeling,it was found that the quantitative analysis PLS model of moisture content in candy was the best when using the multiple scattering correction pretreatment method,in the range of 11682.2～9826.1,8939.0～6267.9,5378.8～4487.8 cm-1 and the principal component number was 15.The correlation coefficient of the model,the corrected root mean square error and the verified root mean square error were 0.9716,0.97％,1.03％ respectively.The method was accurate,reliable and easy to operate,and could be used for rapid determination of moisture content in candy.关键词
近红外光谱/偏最小二乘法/糖果/水分含量/快速测定Key words
near infrared spectroscopy/partial least squares/candy, moisture content/rapid determination分类
轻工纺织引用本文复制引用
沈乐丞,刘书航,邓海玲,何美霞,吴燕蕙,彭建飞,黄勇旗..近红外光谱结合偏最小二乘法快速测定糖果中水分含量[J].食品工业科技,2018,39(7):255-258,322,5.基金项目
深圳市分析测试协会2016“惠民技术”公益科研项目(深分析测试[2016]12号). （深分析测试[2016]12号）
