CAJ | 학술논문

筛选具有代表性的100个新疆南疆和田冬枣作为试验样品，采用近红外光谱分析技术对冬枣样品的糖度进行分析。结果表明：通过相关系数法选取特征波长区间的波数分别为5303～5600 cm-1、6205～6302 cm-1、7308～7405 cm-1，然后作多元散射校正、一阶导数和 Savitzky-Golay 卷积平滑法预处理后，建立的偏最小二乘法（PLS）校正模型效果最好，校正标准偏差（SEC）为0．613，预测标准偏差（SEP）为0．573，相关系数（R）为0．967，具有良好的预测效果，满足生产实践的要求。试验表明，近红外光谱分析技术适合南疆冬枣的糖度无损检测。
사선구유대표성적100개신강남강화전동조작위시험양품，채용근홍외광보분석기술대동조양품적당도진행분석。결과표명：통과상관계수법선취특정파장구간적파수분별위5303～5600 cm-1、6205～6302 cm-1、7308～7405 cm-1，연후작다원산사교정、일계도수화 Savitzky-Golay 권적평활법예처리후，건립적편최소이승법（PLS）교정모형효과최호，교정표준편차（SEC）위0．613，예측표준편차（SEP）위0．573，상관계수（R）위0．967，구유량호적예측효과，만족생산실천적요구。시험표명，근홍외광보분석기술괄합남강동조적당도무손검측。
The aim of the study was to establish model for predicting sugar concentration of Nanjang Hetian Dongzao ju -jubes .One hundred Hetian Dongzao jujubes were assigned to establish model of jujubes .The sugar degree of jujubes were quantitatively determined by Near Infrared Spectroscopy ( NIRS ) , spectroscopy pretreatment methods were multipli-cation scatter correction (MSC), first derivative , Svitzky-Golay (S-G) and Normalization , the results showed that the best effect of the calibration model of saccharinity within the spectral region of 5303-5600cm-1 ,6205-6302cm-1 and 7308-7405 cm-1 which selected through the method of correlation respectively , the model was established by Partial Least Squares, and SEC and SEP are 0.613 and 0.573, respectively, calibration coefficient and prediction correlation coeffi-cient are 0.967 and 0.965, respectively.The final results indicated that the model is an effective method to rapid detect sugar degree .