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Title: Characterization of phenolic compounds and their contribution to sensory properties of olive oil
Authors : Pedan, Vasilisa
Popp, Martin
Rohn, Sascha
Nyfeler, Matthias
Bongartz, Annette
et. al : No
Published in : Molecules
Volume(Issue) : 24
Issue : 2041
Publisher / Ed. Institution : MDPI
Issue Date: 2019
License (according to publishing contract) : CC BY 4.0: Attribution 4.0 International
Type of review: Peer review (publication)
Language : English
Subjects : Olive oil; LC-MS analysis; Phenolic compounds; Polyphenols; Sensory profiling; Aroma description
Subject (DDC) : 664: Food technology
Abstract: Olive oil is not only known for its pungent, bitter, and fruity taste, but also for its health potential, which is often hypothesized to depend on its phenolic compounds. One hundred extra virgin olive oil samples (monocultivaric as well as blends of varieties) were assessed with regard to their sensory properties and phenolic compound composition. Nineteen phenolic compounds have been determined and correlated with sensory data. In all olive oil samples, oleocanthal and oleacein were the most abundant phenolic compounds, with average amounts of 77.9 mg/kg and 41.8 mg/kg, respectively. The highest correlation coefficient between a sensory descriptor and the phenolic compounds was found for the bitter taste sensation and the total phenolic content with r = 0.72 and in particular, for 3,4-DHPEA-EA, with r = 0.57. Intensity plots were assessed for the three main sensory descriptors fruitiness, bitterness, pungency, and for the quality factor harmony, which is associated with the degree of ripeness aroma of olive oil. Positive correlations for the aroma descriptors freshly cut grass, leaves, and nuts, and the phenolic compounds were especially observed for oleoside 11-methylester and vanillic acid. The present study provides a comprehensive database of phenolic compounds in olive oils from six different varieties and seven countries.
Departement: Life Sciences and Facility Management
Organisational Unit: Institute of Food and Beverage Innovation (ILGI)
Publication type: Article in scientific journal
DOI : 10.21256/zhaw-5536
ISSN: 1420-3049
Appears in Collections:Publikationen Life Sciences und Facility Management

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