近红外光谱法快速测定苎麻果胶含量的研究与探讨  

Study on Rapid Determination of Pectin Content in Ramie by Near-Infrared Spectroscopy

作　　者：肖爱平[1] 李伟[1] 冷鹃[1] 田小兰[1] 程毅[1] 廖丽萍[1] 

机构地区：[1]中国农业科学院麻类研究所,湖南长沙410205

出　　处：《中国麻业科学》2009年第4期238-241,共4页Plant Fiber Sciences in China

基　　金：公益性农业行业专项:苎麻;亚麻;黄红麻的高效生产与收获技术研究合同号nyhyzx07-018-11

摘　　要：本文旨在探讨应用近红外光谱法快速测定苎麻中果胶含量的可行性。对62个苎麻样品进行近红外光谱扫描及果胶含量的测定,采用偏最小二乘法(PLS)建立近红外光谱信息与果胶含量的校正模型,该模型的相关系数为0.904。利用该模型对16个验证集样品进行果胶含量的预测,预测标准差为0.21。结果表明,该方法用于快速测定苎麻果胶含量是可行的。The aim of the study was to investigate the feasibility of near-infrared spectroscopy （NIR） for rapid determination of the pectin content in ramie. Partial Least Square （PLS） was used to build the calibration model between the spectra information and chemical values based on the 62 samples, and 16 ramie samples were used to evaluate the reliability of the calibration model. The relative coefficient of predition model was 0.904; the Std Err Predict （SEP） was 0.21. By statistical significance test, the results of determination were compared with that of standard methods with no significant difference at 0.05 level. The result showed that the NIR is a simple, rapid and effective means for determination pectin content in ramie.

关 键 词：近红外光谱 苎麻 果胶 

分 类 号：S563.1[农业科学—作物学]