title: Discrimination of honeys using colorimetric sensor arrays, sensory analysis and gas chromatography techniques.
abstract: Aroma profiles of six honey varieties of different botanical origins were investigated using colorimetric sensor array, gas chromatography-mass spectrometry (GC-MS) and descriptive sensory analysis. Fifty-eight aroma compounds were identified, including 2 norisoprenoids, 5 hydrocarbons, 4 terpenes, 6 phenols, 7 ketones, 9 acids, 12 aldehydes and 13 alcohols. Twenty abundant or active compounds were chosen as key compounds to characterize honey aroma. Discrimination of the honeys was subsequently implemented using multivariate analysis, including hierarchical clustering analysis (HCA) and principal component analysis (PCA). Honeys of the same botanical origin were grouped together in the PCA score plot and HCA dendrogram. SPME-GC/MS and colorimetric sensor array were able to discriminate the honeys effectively with the advantages of being rapid, simple and low-cost. Moreover, partial least squares regression (PLSR) was applied to indicate the relationship between sensory descriptors and aroma compounds.
authors.affiliation: School of Food and Biological Engineering, Jiangsu university, 301 Xuefu Rd., 212013 Zhenjiang, Jiangsu, China.
authors.forename: Haroon Elrasheid
authors.initials: HE
authors.lastname: Tahir
authors.affiliation: School of Food and Biological Engineering, Jiangsu university, 301 Xuefu Rd., 212013 Zhenjiang, Jiangsu, China. Electronic address: zou_xiaobo@ujs.edu.cn.
authors.forename: Zou
authors.initials: Z
authors.lastname: Xiaobo
authors.affiliation: School of Food and Biological Engineering, Jiangsu university, 301 Xuefu Rd., 212013 Zhenjiang, Jiangsu, China.
authors.forename: Huang
authors.initials: H
authors.lastname: Xiaowei
authors.affiliation: School of Food and Biological Engineering, Jiangsu university, 301 Xuefu Rd., 212013 Zhenjiang, Jiangsu, China.
authors.forename: Shi
authors.initials: S
authors.lastname: Jiyong
authors.affiliation: College of Sciences and Arts-Alkamil, University of Jeddah, P.O. Box 110, Alkamil 21931, Saudi Arabia; Department of Food Science & Technology, College of Agricultural Studies, Sudan University of Science & Technology, P.O. Box 71, Khartoum North, Sudan.
authors.forename: Abdalbasit Adam
authors.initials: AA
authors.lastname: Mariod
mesh_terms: D000143:Acids / Q000032:analysis; D000438:Alcohols / Q000032:analysis; D000447:Aldehydes / Q000032:analysis; D016000:Cluster Analysis; D003124:Colorimetry; D008401:Gas Chromatography-Mass Spectrometry; D006722:Honey / Q000032:analysis* / Q000145:classification; D007659:Ketones / Q000032:analysis; D015999:Multivariate Analysis; D045792:Norisoprenoids / Q000032:analysis; D010636:Phenols / Q000032:analysis; D025341:Principal Component Analysis; D012903:Smell; D013729:Terpenes / Q000032:analysis
chemical_list: D000143:Acids; D000438:Alcohols; D000447:Aldehydes; D007659:Ketones; D045792:Norisoprenoids; D010636:Phenols; D013729:Terpenes
keywords: Colorimetric sensor array; Honey; Multivariate analysis; PLSR; SPME-GC/MS; Sensory analysis