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Botanical species · safety record

Quercus alba

The EFSA Compendium of Botanicals holds 14 constituent measurements for Quercus alba. 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 alba L.

14Constituent measurements
0Safety records
2Cited sources
29Licensed products (Canada)

Regulatory presence

Health Canada's Licensed Natural Health Products Database holds 29 licensed products naming Quercus alba as a medicinal ingredient, matched on the exact Latin binomial. A licence records that a product met the regulator's requirements for sale in Canada. It is not evidence that the product works.

Extract types on licence

  • Dry

Source material stated

  • Aged bark
  • Bark
  • Branch bark
  • Stem bark
  • Stem bark - inner
  • Trunk bark

What the records describe

Constituents measured

  • Hydroxymethylfurfural4
  • Furfural3
  • Eugenol2
  • Isoeugenol2
  • Gallic acid1
  • Scopoletin1
  • Umbelliferone1

Plant parts

  • Wood14

Preparations

  • Solvent extraction14

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.

SubstancePlant partPreparationConcentrationAnalytical methodSource
EugenolWoodSolvent extraction≤ 5.9 Microgram/gramGaschromatography (GC)No resolvable identifier
EugenolWoodSolvent extraction≥ 4.9 Microgram/gramGaschromatography (GC)No resolvable identifier
FurfuralWoodSolvent extraction≤ 1.8 Microgram/gramGaschromatography (GC)No resolvable identifier
FurfuralWoodSolvent extraction≥ 1.2 Microgram/gramGaschromatography (GC)No resolvable identifier
FurfuralWoodSolvent extraction1.1 Milligram/litreHigh Performance Liquid Chromatography (HPLC)/Liquid Chromatography (LC)No resolvable identifier
Gallic acidWoodSolvent extraction21.4 Milligram/litreHigh Performance Liquid Chromatography (HPLC)/Liquid Chromatography (LC)No resolvable identifier
HydroxymethylfurfuralWoodSolvent extraction≥ 0.4 Microgram/gramGaschromatography (GC)No resolvable identifier
HydroxymethylfurfuralWoodSolvent extraction≤ 0.7 Microgram/gramGaschromatography (GC)No resolvable identifier
HydroxymethylfurfuralWoodSolvent extraction≥ 1.1 Milligram/litreHigh Performance Liquid Chromatography (HPLC)/Liquid Chromatography (LC)No resolvable identifier
HydroxymethylfurfuralWoodSolvent extraction≤ 6.9 Milligram/litreHigh Performance Liquid Chromatography (HPLC)/Liquid Chromatography (LC)No resolvable identifier
IsoeugenolWoodSolvent extraction≥ 1.1 Microgram/gramGaschromatography (GC)No resolvable identifier
IsoeugenolWoodSolvent extraction≤ 1.3 Microgram/gramGaschromatography (GC)No resolvable identifier
ScopoletinWoodSolvent extraction2.09 Microgram/litreHigh Performance Liquid Chromatography (HPLC)/Liquid Chromatography (LC)No resolvable identifier
UmbelliferoneWoodSolvent extraction1.3 Microgram/litreChromatographic testsNo resolvable identifier

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.

  1. Jordao, Antonio M., Ricardo-Da-Silva, Jorge M., Laureano, Olga. Comparison of volatile composition of cooperage oak wood of different origins (Quercus pyrenaica vs. Quercus alba and Quercus petraea) . Mitteilungen klosterneuburg, 2005, vol. 55, no. 1-2, p. 22-31.
  2. Canas, Sara., Belchior, Antonio Pedro., Spranger, Maria Isabel., Bruno-de-Sousa, Raul. HPLC method for the quantification of phenolic acids, phenolic aldehydes, coumarins and furanic derivatives in different kinds of toasted wood used for the ageing of brandies. Analytical methods, 2011, vol. 3, no. 1, p. 186-191.

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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