Classification of Pericarpium Citri Reticulatae (Chenpi) age using surface-enhanced Raman spectroscopy

文献类型： 外文期刊

第一作者： Dai, Guoyu

作者： Dai, Guoyu;Guan, Qiunong;Du, Caigan;Dai, Guoyu;Wu, Longxiang;Zhao, Jianhua;Zeng, Haishan;Zong, Ming;Fu, Manqin

作者机构：

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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