Analysis of volatile compounds of rosemary honey. Comparison of different extraction techniques |
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Authors: | L Castro-Vázquez M S Pérez-Coello M D Cabezudo |
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Institution: | (1) Departamento de Ciencia y Tecnología de Alimentos. Facultad de Ciencias Químicas, Universidad de Castilla-La Mancha, Campus Universitario s/n, 13071 Ciudad Real, Spain |
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Abstract: | Summary The analysis of the volatile fraction from honey requires the sugar matrix to be separated prior to the analysis by GC-MS.
In this study, three extraction techniques, simultaneous extraction-distillation, liquid-liquid extraction and solid-phase
extraction, were compared to the extraction of the volatile compounds of a rosemary honey. Analysis of these fractions by
gas chromatography—mass spectrometry enabled the tentative identification of up to 122 volatile compounds (alcohols, ketones,
aldehydes, acids, esters, terpenes, hydrocarbons, phenol, furan and pyran compounds). SDE extracts were rich in terpenes and
esters, while the other two techniques avoided the formation of artefacts due to heating the sample. |
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Keywords: | Gas chromatography— mass spectrometry Extraction techniques Volatile compounds Rosemary honey |
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