Botanical species · safety record

Quercus suber

The EFSA Compendium of Botanicals holds 6 constituent measurements for Quercus suber. This page reports what those source records contain and how to reach them. It carries no effect estimate, no dose and no recommendation.

Accepted name in source: Quercus suber L.

6Constituent measurements

0Safety records

3Cited sources

0Licensed products (Canada)

Regulatory presence

No Health Canada licensed natural health product in the snapshot names this species as a medicinal ingredient under this exact binomial. Absence here means absence from this one register under this one name, not absence from trade, and not a safety verdict.

What the records describe

Constituents measured

Plant parts

Preparations

Recorded constituents

What analytical work has found in this species, at which plant part and preparation. A measured constituent is a fact about material, not about effect.

Substance	Plant part	Preparation	Concentration	Analytical method	Source
Ellagitannins (hydrolysable tannins)	Bark	Solvent extraction	—	HPLC with standard detection methods	Resolve DOI
Esculetin	Bark	Solvent extraction	6 Microgram/gram	High Performance Liquid Chromatography (HPLC)/Liquid Chromatography (LC)	Resolve DOI
Gallotannins	Bark	Solvent extraction	—	HPLC with standard detection methods	Resolve DOI
Scopoletin	Bark	Solvent extraction	8 Microgram/gram	High Performance Liquid Chromatography (HPLC)/Liquid Chromatography (LC)	Resolve DOI
Sitostenone	Bark	Solvent extraction	≥ 2.6 Percent	GC-MS	Resolve DOI
Sitostenone	Bark	Solvent extraction	≤ 7.5 Percent	GC-MS	Resolve DOI

Cited sources

The literature the compendium cites for this species. Metatron Health has no relationship with these authors or journals and earns nothing from citing them.

Castola, V., Bighelli, A., Rezzi, S., Melloni, G., Gladiali, S., Desjobert, JM., Casanova, J. Composition and chemical variability of the triterpene fraction of dichloromethane extracts of cork (Quercus suber L.). INDUSTRIAL CROPS AND PRODUCTS, 2002, vol. 15, no. 1, p. 15-22. DOI
Fernandes, Ana., Sousa, Andre., Mateus, Nuno., Cabral, Miguel., de Freitas, Victor. Analysis of phenolic compounds in cork from Quercus suber L by HPLC-DAD/ESI-MS . Food chemistry, 2011, vol. 125, no. 4, p. 1398-1405. DOI
Conde, E., Cadahia, E., Garcia-Vallejo, MC., de Simon, BF. Polyphenolic composition of Quercus suber cork from different Spanish provenances. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 1998, vol. 46, no. 8, p. 3166-3171. DOI

Boundary

A constituent measurement is a fact about material at a stated preparation, not a statement about what that material does in a person. An adverse-effect or genotoxicity record is an observation reported in a source, most often in an animal or laboratory model. Neither is a Metatron Health conclusion about causality, human risk or benefit, and the absence of a record is not proof that a preparation is safe. Nothing here is diagnosis, prescribing or individual medical care.

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Independent literature