Black pepper and white pepper, whole or ground — Determination of piperine content — Spectrophotometric method
NORMA vydaná dňa 1.11.1982
Označenie normy: ISO 5564:1982
Dátum vydania normy: 1.11.1982
Počet strán: 2
Približná hmotnosť: 6 g (0.01 libier)
Krajina: Medzinárodná technická norma
Kategória: Technické normy ISO
Description / Abstract: Describes a method based on a number of international collaborative studies carried out over a long period of time. The method seeks to optimize a number of variables in an attempt to define procedures and provide a common measure of the pungency of pepper. The principle consists in the extraction of the pungent compounds with ethanol and spectrophotometric measurement at 343 nm.