中国果菜2025，Vol.45Issue(3)：6-11,6.DOI:10.19590/j.cnki.1008-1038.2025.03.002
基于近红外光谱和新型变量筛选策略的砂糖橘产地无损鉴别
Nondestructive Identification of'Shatangju'Mandarin from Different Origins Based on Near-infrared Spectroscopy Combined with the Variable Screening Strategy
摘要
Abstract
A non-destructive traceability method for'Shatangju'mandarin(Citrus reticulata Blanco cv.Shatangju)from different origins was established based on near-infrared(NIR)spectroscopy technology and variable screening-linear discriminant analysis(LDA)method.Spectra of'Shatangju'mandarin from Guangxi,Yunnan,and Guangdong at the integration times of 25,45 ms,and 65 ms were collected.Spectral preprocessing was used to eliminate interferences,while principal component analysis(PCA)and LDA methods were used to establish identification the models for'Shatangju'mandarin from different origins.Competitive adaptive reweighted sampling(CARS),Monte carlo non informative variable elimination(MCUVE),continuous projection algorithm(SPA),and randomized trial method(RT)were used to further simplify the model and improve the identification accuracy.The results indicated that spectral preprocessing methods could eliminate the interferences in spectra.The unsupervised pattern recognition could not achieve the identification of'Shatangju'mandarin from different origins.The models of 45 ms and 65 ms were better than those of 25 ms.95.10%identification rate could be obtained with LDA and spectral preprocessing methods.The accuracies of model identification using variable screening method were significantly improved.99.02%identification rate could be obtained with 65 ms-debias correction(de-bias)-RT-LDA,65 ms-standard normal variate transformation(SNV)-RT-LDA,65 ms-original spectra-SPA-LDA,65 ms-first-order derivative(1st)-SPA-LDA models,and 45 ms-original spectra-MCUVE-LDA models.The above results indicated that the portable NIR spectroscopy technology and variable screening-LDA method could achieve accurate and non-destructive identification of'Shatangju'mandarin from different origins.关键词
砂糖橘/便携式近红外光谱/产地/变量筛选/无损鉴别Key words
'Shatangju'mandarin/portable near infrared spectroscopy/origin/variable screening/nondestructive identification分类
化学引用本文复制引用
邱熙文,杨清华,谌佳琪,唐辉,李跑,杜国荣..基于近红外光谱和新型变量筛选策略的砂糖橘产地无损鉴别[J].中国果菜,2025,45(3):6-11,6.基金项目
湖南省自然科学基金(2023JJ30290) （2023JJ30290）
2024年度湖南省大学生创新训练计划一般项目(s202410-537029) （s202410-537029）
广东省食药资源利用与保护重点实验室2023年度开放基金课题重点项目(FMR2023012Z) （FMR2023012Z）
湖南农业大学2024年学科交叉研究青年引导项目(2024XKJC10) （2024XKJC10）
