期刊
FOOD CHEMISTRY
卷 206, 期 -, 页码 37-43出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2016.03.032
关键词
Honey; Colorimetric sensor array; SPME-GC/MS; Multivariate analysis; Sensory analysis; PLSR
资金
- National Science and technology support program [2015BAD17B04]
- Chinese 863 Program [2011AA00807]
- NSFC [6091079]
- Jiangsu province science fund [BK20130010]
- New century excellent talents in university [NCET-11-0986]
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. (C) 2016 Elsevier Ltd. All rights reserved.
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