Ginkgo biloba medicines and food supplements on the Belgian market: a comparative study.
Medicines and food supplements based on the dry extract of the leaves of Ginkgo biloba L. were evaluated by determination of the content of total flavonoids, rutin and terpene lactones by means of liquid chromatography. All examined medicines complied with the fixed requirements whereas all food supplements deviated from 1 or more of the criteria. It could also be demonstrated that some products contained extracts to which rutin was added.
Saevels
J
J
Service de Contrôle des Médicaments, rue Stévin 137, B-1000 Bruxelles.
Corthout
J
J
D001530:Belgium; D002853:Chromatography, Liquid; D019587:Dietary Supplements / Q000592:standards*; D005419:Flavonoids / Q000032:analysis; D020441:Ginkgo biloba / Q000737:chemistry*; D007783:Lactones / Q000032:analysis; D010936:Plant Extracts / Q000592:standards; D012431:Rutin / Q000032:analysis; D013056:Spectrophotometry, Ultraviolet; D013729:Terpenes / Q000032:analysis
D005419:Flavonoids; D007783:Lactones; D010936:Plant Extracts; D013729:Terpenes; D012431:Rutin