[Standardization of hazel leaf].
Dried leaves of 9 harvested batches and 5 batches of commercial origin from Corylus avellana L. were examined. The levels of principal polyphenolic compounds averaged respectively: total flavonoids 2.58 and 2.58%, myricitrin 1.09 and 1.35%, quercitrin 0.30 and 0.40%, tannins 5.2 and 6.5%. Specifications were discussed for a French Pharmacopoeial monography.
Fraisse
D
D
Laboratoire de Pharmacognosie et Phytothérapie, Faculté de Pharmacie, Clermont-Ferrand.
Carnat
A
A
Carnat
A P
AP
Lamaison
J L
JL
D002851:Chromatography, High Pressure Liquid; D002855:Chromatography, Thin Layer; D005419:Flavonoids / Q000032:analysis; D010636:Phenols / Q000032:analysis; D010936:Plant Extracts / Q000592:standards; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D013634:Tannins / Q000032:analysis
D005419:Flavonoids; D010636:Phenols; D010936:Plant Extracts; D013634:Tannins