Classification of Pericarpium Citri Reticulatae (Chenpi) age using surface-enhanced Raman spectroscopy
文献类型： 外文期刊
作者： Dai, Guoyu 1 ; Wu, Longxiang 2 ; Zhao, Jianhua 3 ; Guan, Qiunong 1 ; Zeng, Haishan 3 ; Zong, Ming 4 ; Fu, Manqin 5 ; Du, Caigan 1 ;
作者机构： 1.Univ British Columbia, Dept Urol Sci, Vancouver, BC, Canada
2.Cent South Univ, Xiangya Hosp, Dept Urol, Changsha, Hunan, Peoples R China
3.BC Canc Res Ctr, Integrat Oncol Dept, Imaging Unit, Vancouver, BC, Canada
4.Tongji Univ, Shanghai East Hosp, Dept Clin Lab, Sch Med, Shanghai, Peoples R China
5.Guangdong Acad Agr Sci, Sericultural & Agrifood Res Inst, Key Lab Funct Foods, Minist Agr,Guangdong Key Lab Agr Prod Proc, Guangzhou, Guangdong, Peoples R China
关键词： Pericarpium Citri Reticulatae; Chenpi; Raman spectroscopy; Chemical fingerprinting; Storage age
期刊名称：FOOD CHEMISTRY （ 影响因子：8.8； 五年影响因子：8.6 ）
ISSN： 0308-8146
年卷期： 2023 年 408 卷
页码：
收录情况： SCI
摘要： Pericarpium Citri Reticulatae (PCR) is used in food and medical herbal formula, and its quality is determined by its age. Raman spectroscopy is a laser technology for molecular fingerprinting. The feasibility of using surface-enhanced Raman spectroscopy (SERS) to determine the PCR age was investigated. The Raman peaks were ac-quired using a Raman spectrometer with a 785 nm diode laser and were analyzed using principal component analysis (PCA) followed by linear discriminant analysis (PCA-LDA). There were six major peaks at 600, 730, 990, 1370, 1607, and 1742 cm-1 in the SERS spectra, and their intensity, especially the peak at 1607 cm-1, was inversely correlated with the PCR age. The different ages of PCR could be correctly classified with over 90 % accuracy by using PCA-LDA based on the SERS spectra. In conclusion, a Raman spectrometer may be used as a novel method to identify the age of PCR products.
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