期刊
FOOD CHEMISTRY
卷 113, 期 4, 页码 1095-1100出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2008.08.076
关键词
Extra virgin olive oils; Storage; Dynamic taste perception; Phenolic compounds; Bitterness; Pungency
A mapping of the sensory characteristics of bitterness and Pungency and phenol composition of mono-varietal virgin olive oils in relation to storage conditions (time and temperature), Was undertaken. The two sensory qualities were evaluated by static (descriptive intensity) and dynamic (time-intensity) evaluation methods, to get information oil the duration of bitter and pungent sensations and on the intensity variation over the time of duration of the two sensations. Relationships between bitter or pungent sensations and phenolic compounds were measured. Only oleopeurin and ligstroside derivatives were good predictors of two sensations of taste and mouthfeel. Particularly, 4-(acetoxyethyl)-1,2-dihydroxybenzene (3,4 DHPEA-AC) and dialdehydic form of decarboxymethylelenolic acid linked to hydroxytyrosol (3,4 DHPEA-EDA) were good predictors of bitterness and pungency (static and dynamic analysis) under the storage conditions ( 10 and 28 degrees C). For the higher of the two temperatures only, the dialdehydic form of decarboxymethylelenolic acid linked to tyrosol (p-HPEA-EDA), for pungency, and oleuropein aglycone (p-HPEA-EA), for bitterness and pungency, had relevant predictor power. (c) 2008 Elsevier Ltd. All rights reserved.
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