ISO 19563:2017

Published (Edition 1, 2017)

This standard was last reviewed and confirmed in 2022. Therefore this version remains current.

ISO 19563:2017

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Abstract

ISO 19563:2016 specifies a high-performance liquid chromatographic (HPLC) method for the determination of theanine content in tea (Camellia sinensis). It is applicable to both tea and instant tea samples. Separation of L- and D-theanine is not possible using this method; however, the L-enantiomer is the major form in tea.

General information

Status
: Published

Publication date
: 2017-01

Stage
: International Standard confirmed [90.93]
Edition
: 1

Number of pages
: 13
Technical Committee :
ISO/TC 34/SC 8

ICS :
67.140.10
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