Occurrence of Volatile Mono- and Sesquiterpenoids in Highland and Lowland Plant Species as Possible Precursors for Flavor Compounds in Milk and Dairy Products

Autor:	Thomas Berger, Jacques Olivier Bosset, Miroslava Imhof, Raul G. Mariaca, Roland Gauch, Bernard Jeangros
Rok vydání:	1997
Předmět:	Limonene biology Phenology General Chemistry Sesquiterpene biology.organism_classification Terpenoid chemistry.chemical_compound chemistry Botany Grazing Kovats retention index General Agricultural and Biological Sciences Flavor Aroma
Zdroj:	Journal of Agricultural and Food Chemistry. 45:4423-4434
ISSN:	1520-5118 0021-8561
DOI:	10.1021/jf970216t
Popis:	This paper examines the distribution of mono- and sesquiterpene secondary metabolites in 47 plants present in grazing areas from which cheeses are produced. In total, 54 terpenoid volatiles, derived from both highland and lowland plants, were obtained by a gaseous purge-and-trap system without the use of organic solvents and then identified by automated GC/MSD-FID analysis using mass spectral libraries, retention indices, and data acquired by the authors with authentic substances. Single ion monitoring proved valuable in identifying overlapping compounds with similar spectra for the subsequent semiquantitative determination of compositions. These are displayed as radar plots. It is suggested that flavor/aroma differences in cheeses produced from animals grazing in different areas and seasons arise from species (n = 38), phenological stages (n = 8), locations (n = 4), and seasonal variation in terpenoids present (the most common were trans-β-ocimene, limonene, and trans-β-caryophyllene). This hypothesis is...
Databáze:	OpenAIRE
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