CAJ | 학술논문

目的：采用近红外漫反射光谱技术，建立对道地山药的快速无损鉴别方法。方法：收集三个产地（河南、河北、广东）的山药饮片共90份，采集其近红外漫反射光谱。采用判别分析法建立定性鉴别模型，并考察不同数据预处理方法对模型预测结果的影响。结果：道地山药饮片与其他产地的山药饮片在原始光谱与主成分得分的空间分布中均表现出较大的差异性。所建定性判别模型中，经多元散射校正结合二阶导数及SG平滑处理的模型表现出最佳预测结果，其对校正集与验证集的判正率均为100％。结论：近红外漫反射光谱技术在道地药材的质量分析中具有可行性，可实现道地山药饮片的快速无损鉴别。
목적：채용근홍외만반사광보기술，건립대도지산약적쾌속무손감별방법。방법：수집삼개산지（하남、하북、엄동）적산약음편공90빈，채집기근홍외만반사광보。채용판별분석법건립정성감별모형，병고찰불동수거예처리방법대모형예측결과적영향。결과：도지산약음편여기타산지적산약음편재원시광보여주성분득분적공간분포중균표현출교대적차이성。소건정성판별모형중，경다원산사교정결합이계도수급SG평활처리적모형표현출최가예측결과，기대교정집여험증집적판정솔균위100％。결론：근홍외만반사광보기술재도지약재적질량분석중구유가행성，가실현도지산약음편적쾌속무손감별。
To investigate the feasibility of NIR spectroscopy in the discrimination of genuine Chinese Yam ,90 samples from three origins were collected and their near infrared diffuse reflectance spectra were acquired.Discriminant analysis was employed to create qualitative model ,and several data pre-processing methods were explored.The results showed that genuine Chinese Yam was greatly different from other samples according to raw spectra and score plot of PCA.The discriminant analysis model with raw spectra after pretreatment of mul-tiplicative scatter correction,2nd derivative and Savitzky -Golay filter smoothing,showed the best predicative ability ( the percentage of correctly identified varieties were both 100%for the calibration sample set and validation sample set ).This research indicated that NIR diffuse reflection spectroscopy could be used for the rapid analysis of genuine Chinese Yam .