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centaury

spice or herb / spice-centaury

センタウリウム / Centaurium erythraea

Centaury is a candidate bitter plant consisting of the dried flowering aerial parts of centaury. An official assessment report summarizes several secoiridoids.

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

Centaury (Centaurium erythraea) is a candidate bitter plant referring to the dried flowering aerial parts. An assessment by the European Medicines Agency identifies secoiridoid glycosides as characteristic bitter constituents, naming swertiamarin as the main constituent and gentiopicroside among minor constituents, and also lists secoiridoid esters such as centapicrin. This is an official assessment report's synthesis of earlier literature, not a direct comparative experiment.

The same assessment also summarizes differences in the composition of bitter constituents between plant parts. It describes fruits as more bitter than flowers, leaves, and stems because of the presence of the secoiridoid esters centapicrin and desacetylcentapicrin. Swertiamarin is described as the main constituent in all parts. This too synthesizes earlier literature and is not a direct comparative experiment.

A separate structural-identification study also reports centapicrin and desacetylcentapicrin as constituents accumulating in the fruit of Centaurium erythraea. This has been checked only at the abstract level; details of the structural identification could not be checked in the full text.

Sources for this overview

  1. Assessment report on Centaurium erythraea Rafn. s.l., herba

    European Medicines Agency; Committee on Herbal Medicinal Products / 2015 / government document / full text checked

    Checked for this overview: Used the assessment's list of bitter secoiridoid constituents. / Used the description of bitter-constituent composition by plant part and the fruit's bitterness.

  2. Secoiridoids and xanthones in the genus Centaurium

    van der Sluis WG; Labadie RP / 1981 / journal article / abstract checked

    Checked for this overview: Used a separate report of centapicrin compounds accumulating in fruit.

Hypotheses and recipe candidates for this entry are on the Japanese page.

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

Composition and content (2)

centaury — key compounds involved in bitterness: Secoiridoid glycosides, mainly swertiamarin, and the very bitter centapicrinscontextual

Scope: A literature synthesis of the dried flowering aerial parts in the EMA assessment report

Note: A compositional summary from a public assessment report. It is not a recommendation for food use or a safety endorsement.

Context: Identifies the characteristic bitter constituents as secoiridoid glycosides, listing mainly swertiamarin, small amounts of gentiopicroside and others, and the very bitter centapicrins.
Limitations: Not a direct comparative experiment by EMA. The compositional makeup differs between the fruit and the leaves/stems.
Source: Assessment report on Centaurium erythraea Rafn. s.l., herba (European Medicines Agency; Committee on Herbal Medicinal Products, 2015) · full text checked
A statement that reads: "the strongly bitter centapicrin (Ia) and desacetylcentapicrin (Ib), accumulating in the fruits of Centaurium erythraea RAFN."
Limitations: Confirmed from the abstract only; the full text (details of the structure determination) has not been read. The part covered is the fruit, which differs from the EMA assessment report's part, the dried flowering aerial parts.
Source: Secoiridoids and xanthones in the genus Centaurium (van der Sluis WG; Labadie RP, 1981) · abstract checked
Show dataspice-centaury —has_key_bitter_organoleptics→ "Secoiridoid glycosides, mainly swertiamarin, and the very bitter centapicrins"
claim: clm-centaury-bitter-constituents / type: composition / updated: 2026-08-31
centaury — key compounds involved in bitterness: An official assessment report summarizes that bitter-constituent composition differs among centaury plant parts and that fruits are more bitter than flowers, leaves, and stems because they contain very bitter secoiridoid esters (centapicrin and desacetylcentapicrin).contextual

Scope: Layer: literature. An EMA assessment's synthesis of literature on bitter-constituent composition by plant part, not a direct comparative experiment; it compares fruit, flowers, leaves, and stems.

Context: "Analysis of different plant parts has shown a variety in the composition of the bitter ingredients. Due to the occurrence of the very bitter secoiridoid esters centapicrin and desacetylcentapicrin, fruits are more bitter than the flowers, leaves and stems. Swertiamarin is the major component in all parts of C. erythraea."
Limitations: This was not a direct comparison by the EMA; the cited primary literature (including Aquino et al. 1985) has not been checked individually. The passage does not specify the scale for 「苦味が強い」 (in translation: "more bitter"), whether sensory or based on content.
Source: Assessment report on Centaurium erythraea Rafn. s.l., herba (European Medicines Agency; Committee on Herbal Medicinal Products, 2015) · full text checked
Show dataspice-centaury —has_key_bitter_organoleptics→ "An official assessment report summarizes that bitter-constituent composition differs among centaury plant parts and that fruits are more bitter than flowers, leaves, and stems because they contain very bitter secoiridoid esters (centapicrin and desacetylcentapicrin)."
claim: clm-w72b3-centaury-fruit-more-bitter-than-other-parts / type: composition / updated: 2026-09-08

Culture (1)

centaury is used as Spices and herbs that add bitter flavor and aroma to dishes and drinksunverified

Scope: A candidate at the level of general knowledge. Regional and naming differences have not been confirmed.

No source connected — this claim has not been verified yet. It is a general-knowledge placeholder, not a confirmed statement.

Show dataspice-centaury —is_used_as→ "Spices and herbs that add bitter flavor and aroma to dishes and drinks"
claim: clm-spice-centaury-candidate-role / type: cultural / updated: 2026-08-31

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