期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1216, 期 9, 页码 1458-1462出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chroma.2008.12.066
关键词
Honey; Traceability; Origin; Authenticity; Head-space solid-phase microextraction; Comprehensive two-dimensional gas chromatography; Time-of-flight mass spectrometry; Artificial neural networks
资金
- European Commission through the 6th Framework Programme [FP6-FOOD-2004-006942-TRACE]
- Ministry of Education, Youth and Sports of the Czech Republic [MSM 6046137305]
Head-space solid-phase microextraction (HS-SPME)-based procedure, coupled to comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry (GC x GC-TOF-MS), was employed for fast characterisation of honey volatiles. In total, 374 samples were collected over two production seasons in Corsica (n = 219) and other European countries (n = 155) with the emphasis to confirm the authenticity of the honeys labelled as Corsica (protected denomination of origin region). For the chemometric analysis, artificial neural networks with multilayer perceptrons (ANN-MLP) were tested. The best prediction (94.5%) and classification (96.5%) abilities of the ANN-MLP model were obtained when the data from two honey harvests were aggregated in order to improve the model performance compared to separate year harvests. (C) 2008 Elsevier B.V. All rights reserved.
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