Herbals are globally accepted for use in medicines, health products, cosmetics and have also a function as starting material for the synthesis of active pharmaceutical ingredients (API’s).  The aim of industry is to deliver to the patient or consumer safe and efficient products. Regulators request also state-to the art controlled quality.

QUERCUS Labo offers industry laboratory services for reliable analysis of herbals and products from herbal origin. In collaboration with the University of Antwerp, Department of Pharmaceutical Sciences, the following modern phyto-analytical methods are readily available.

Assay of active substances in herbals:

  • 10-deacetylbaccatine III in taxus species
  • 8-Prenylnaringenin (8-PN) in Humulus lupulus L.
  • aescine in Aesculus hippocastanum
  • anthraquinone glycoside in rheum root
  • chlorgenic acid in green tea
  • flavonoids in Ginkgo biloba
  • hesperidin
  • hypericine in Hypericum perforatum
  • isoflavones in Glycine max L. and other species
  • metasynephrine and parasynephrine in Citrus aurantium
  • proanthocyanidine in grape seed and other species
  • sennosides in Senna
  • terpenoids in Ginkgo biloba
  • digoxine and lanatoside in Digitalis lanatae leaves
  • hyperosides in Crataegus extract
  • absence of valepotriates in valeriane
  • Milk thistle dry extract (% silymarin)
  • Aloe dry extract (% hydroxyanthracene derivatives expressed as Barbaloin)
  • Licorice dry extract (% glycyrrhizic acid)
  • Cascara dry extract (% cascaroside A)
  • Ginseng (% Ginsengoside)
  • Curcuma dry extract (% curcumin)
  • Valeriaan (% sesquiterpenic acid)
  • Stevia (% steviol glycosides expressed as Rebaudioside A)
  • Hedera extract (% hederacoside C)
  • Balotte extract (% chlorogenic acid derivatives)
  • Red wine extract (% polyphenol)
  • Frangula bark extract (% glucofrangulins expressed as glucofrangulin A)
  • Cinchona bark (% Total alkaloids – % Quinine type alkaloids)
  • Neroli oil
  • Tea tree oil (=Melaleuca oil)
  • Anis oil
  • Cod liver oil (Vit A / Vit D / fatty acids)
  • Olive oil (sterolen/fatty acids)
  • Maize oil (sterolen)

Characterisation and assay of components of essentials oils following the European Pharmacopoeia

  • Caraway oil
  • Citronella oil
  • Dwarf pine oil
  • Eucalyptus oil
  • Lavender oil
  • Peppermint oil
  • Spike Lavender oil
  • Thyme oil thymol type
  • Turpentine oil
  • Peppermint oil
  • Garlic oil

Fatty acids and  oils

  • Omega 3: DHA – EPA – total glycerides
  • Almond oil
  • Composition of fatty acids by gaschromatography for compendial substances
  • Cod liver oil
  • Olive oil