CAJ | 학술논문

南疆红枣的分级目前还停留在外部品质，然而红枣的内部品质比外部品质更重要。红枣的内部品质包括糖度、酸度等。利用近红外漫反射光谱技术对南疆红枣糖度进行无损检测，应用傅立叶变换近红外光谱仪采集红枣光谱图，糖度的测定选用数字阿贝折射仪。分别选用偏最小二乘法（ PLS ）和主成分回归分析法（ PCR ）的化学计量学方法建立红枣校正模型，光谱数据预处理选择一阶导数光谱、平滑等，得到的校正相关系数（ Rc ）为0．9425，预测相关系数（Rp）为0．9104，校正标准偏差（SEC）值为1．02。预测标准偏差（SEP）值为0．836，主因子数为5。
남강홍조적분급목전환정류재외부품질，연이홍조적내부품질비외부품질경중요。홍조적내부품질포괄당도、산도등。이용근홍외만반사광보기술대남강홍조당도진행무손검측，응용부립협변환근홍외광보의채집홍조광보도，당도적측정선용수자아패절사의。분별선용편최소이승법（ PLS ）화주성분회귀분석법（ PCR ）적화학계량학방법건립홍조교정모형，광보수거예처리선택일계도수광보、평활등，득도적교정상관계수（ Rc ）위0．9425，예측상관계수（Rp）위0．9104，교정표준편차（SEC）치위1．02。예측표준편차（SEP）치위0．836，주인자수위5。
classification is still stuck in the external quality of jujube in south Xinjiang , but interior quality is more im-portant than external quality of jujube .Internal quality of jujube including sugar content , acidity etc .The experiment is using near -infrared diffuse reflectance Spectroscopy Technique of jujube in south Xinjiang sugar content for non -de-structive testing , acquisition date of the application of Fourier Transform near infrared spectrometer spectrum , determina-tion of sugar content using digital Abbe refractometer .Each selection of Partial Least Squares ( PLS ) and the principal component regression analysis ( PCR ) of chemometrics methods to establish date correction model , spectral data prepro-cessing select one of the first order derivative Spectrophotometry , smooth , and so on , get the correlation coefficient cor-rection( RC ) for 0.9425, predicting the correlation coefficient ( RP ) is 0.9104, the standard deviation correction ( SEC ) is 1.02.Prediction of the standard deviation ( Sep ) value is 0.836, the main factor accounting for 5.