A novel strategy for discriminating different cultivation and screening odor and taste flavor compounds in Xinhui tangerine peel using E-nose, E-tongue, and chemometrics. (1st August 2022)

• Record Type: Journal Article
• Authors: Li, Xinqi; Yang, Yahui; Zhu, Yitian; Ben, Ailing; Qi, Jin
• Is Part Of: Food chemistry. Volume 384(2022)
• Publication Date: 2022-08-01
• Subjects: Xinhui tangerine peel -- E-nose -- E-tongue -- Chemometrics -- Flavor compounds; Food -- Analysis -- Periodicals; Food -- Composition -- Periodicals; 664
• DOI: 10.1016/j.foodchem.2022.132519
• Languages: English
• ISSNs: 0308-8146

Abstract

Graphical abstract: Highlights: Cultivation method affected chemical compounds of Xinhui tangerine peel (XTP). Odor and taste for different cultivation methods of XTP compared by E-nose and E-tongue. Key volatile and taste flavor compounds of XTP identified by Spearman, GRA and PLSR. Discrimination of cultivation methods of XTP using E-nose, E-tongue and chemometrics. Abstract: A rapid strategy for discriminating Quanzhi (QZ) and Bozhi (BZ) of different cultivation of Xinhui tangerine peel was established by combining electronic nose, electronic tongue and chemometrics, which can be used as tool in the market to identify food fraud. 30 volatiles and 34 low molecular weight compounds of characteristic fingerprints of Xinhui tangerine peel of 108 samples were identified using GC–MS and UHPLC-Q-TOF-MS. Key compounds of BZ and QZ were screened and further compared by chemometrics. We discriminated odor and taste of BZ and QZ using electronic nose and electronic tongue, respectively. Our studies showed that β-myrcene, limonene, β-trans-Ocimene, γ-terpinene and terpinolene, etc, were screened the chief volatile flavor compounds by Spearman's rank correlation. Hydroxymethyl furfural, hesperitin, nobiletin and tangeretin, etc, were screened the key taste flavor compounds based gray relational analysis and partial least squares regression. Our study provides further insight for quality evaluation of Xinhui tangerine peel.