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olive oil phenolic compounds

compound class / compound-olive-phenolics

オリーブオイルフェノール類

Phenolic compounds measured in virgin olive oil.

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  1. Overview
  2. Sources for this overview (2)
  3. Topic hubs
  4. Follow the connections
  5. Related entries (10)
  6. Composition and content (1)
  7. Sensory (1)
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Reading the bitterness

Olive oil phenolics are a group of phenolic compounds measured in virgin olive oil. In a study targeting 100 extra virgin olive oils from 6 cultivars and multiple countries, 19 phenolic compounds were quantified, with total phenol content distributed in a range of approximately 52 to 315 mg GAE/kg. Among these, oleocanthal and oleacein were most abundant, with average amounts of 77.9 mg/kg and 41.8 mg/kg, respectively.

In sensory correlation analysis from the same study, the strongest among those reported was the correlation between bitterness and total phenol content, with a correlation coefficient of r = 0.72. As a clue to understanding olive oil bitterness from chemical composition, phenolics become a central focus in research on this oil's bitterness.

However, a correlation coefficient does not indicate causation, nor is it a universal measure applicable across all oil types. In a separate study, when olive oil polyphenol fractions were separated by RP-HPLC, nearly all fractions were described as bitter and astringent, whereas a single specific fraction — deacetoxy ligustroside aglycone — was described as distinctly pungent at the back of the throat. This suggests that the simple correlation of 「総フェノール量と苦味」 (in translation: “total phenol content and bitterness”) may be collapsing together qualitatively different oral sensations.

Sources for this overview

  1. Characterization of Phenolic Compounds and Their Contribution to Sensory Properties of Olive Oil

    Pedan V; Popp M; Rohn S; Nyfeler M; Bongartz A / 2019 / journal article / full text checked

    Checked for this overview: Confirmed: 19 compounds and total phenol content range quantified in 100 EVOO samples / Confirmed: correlation r = 0.72 between bitterness and total phenol content

  2. Sensory properties of virgin olive oil polyphenols: identification of deacetoxy-ligstroside aglycon as a key contributor to pungency

    Andrewes P; Busch JL; de Joode T; Groenewegen A; Alexandre H / 2003 / journal article / abstract checked

    Checked for this overview: Confirmed: specific fraction exhibits a distinct pungent sensation (limitation)

Follow the connections

olive oil phenolic compounds →is correlated with→ bitterness →can be measured separately …→ astringency

EVOO →contains→ olive oil phenolic compounds

Structured claims — open a section to read each claim's confidence, evidence and limits

Composition and content (1)

EVOO contains olive oil phenolic compoundssupported

Scope: A stated 100 oils in the cited composition study (the itemised total is 97)

Note: The specific compounds and their concentrations vary by cultivar, ripeness, and processing method. (2026-10-21, expansion stage N5 stage C batch 5: Codex's check against the source confirmed that the evidence comes from 1 study only and that in Table 1 the compound names are duplicated, so the correspondence with the abstract's mean values cannot be confirmed (established requires agreement among multiple independent studies); lowered from established to supported.)

A stated 100 extra virgin olive oil samples (single cultivars and blends) from 8 countries (Italy 28, Spain 27, Greece 15, Portugal 11, Croatia 3, France 1, United States 3, China 2; plus 7 EU blends) were quantified for 19 phenolic compounds; total phenol content in the range of approximately 52 to 315 mg GAE/kg. Verbatim from the abstract: "oleocanthal and oleacein were the most abundant phenolic compounds, with average amounts of 77.9 mg/kg and 41.8 mg/kg, respectively."
Limitations: Sampling does not cover all oils; the number of panelists is not stated in the text. In Table 1 the compound names oleocanthal and oleuropein each appear twice, so the correspondence between the abstract's mean values (77.9 and 41.8 mg/kg) and the table values cannot be confirmed.
Source: Characterization of Phenolic Compounds and Their Contribution to Sensory Properties of Olive Oil (Pedan V; Popp M; Rohn S; Nyfeler M; Bongartz A, 2019) · full text checked
Show dataingredient-extra-virgin-olive-oil —contains→ compound-olive-phenolics
claim: clm-evoo-phenolics / type: composition / updated: 2026-10-21

Sensory (1)

olive oil phenolic compounds is correlated with bitternesssupported

Scope: Extra virgin olive oils described in the abstract as from 6 cultivars and 7 countries, while the text lists 8 countries plus EU blends (the text itemises 62 single-cultivar and 35 blended samples, 97 in all, against a stated 100)

Note: The reported correlation differs between the abstract (r=0.72) and the text (r=0.69) (2026-10-21, full-text re-evaluation, batch 1); it is neither causal nor a universal calibration.

A positive correlation between bitterness and total phenolic content is reported, but the coefficient differs between the abstract (r=0.72) and the text (r=0.69), and the supplementary correlation table was not read, so it cannot be settled.
Limitations: Correlation does not establish causation and does not define a universal measure.
Source: Characterization of Phenolic Compounds and Their Contribution to Sensory Properties of Olive Oil (Pedan V; Popp M; Rohn S; Nyfeler M; Bongartz A, 2019) · full text checked
Context: Nearly all polyphenol fractions were described as bitter and astringent, but the deacetoxy-ligstroside aglycone fraction produced a strong burning pungent sensation at the back of the throat. This study did not analyze the correlation between total phenol content and bitterness; the possibility that such a correlation lumps together qualitatively different oral sensations is only an interpretation drawn from this result.
Limitations: The concentration ratio of the fraction to the original oil is not stated in the abstract.
Source: Sensory properties of virgin olive oil polyphenols: identification of deacetoxy-ligstroside aglycon as a key contributor to pungency (Andrewes P; Busch JL; de Joode T; Groenewegen A; Alexandre H, 2003) · abstract checked
Show datacompound-olive-phenolics —is_correlated_with→ sensation-bitter
claim: clm-olive-oil-phenolics / type: sensory / updated: 2026-10-21

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