ISO 22212:2019 伝統的な漢方薬— Gastrodia elata tuber | ページ 2

Foreword

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This document was prepared by Technical Committee ISO/TC 249, Traditional Chinese medicine.

Introduction

Gastrodia elata tuber, the dried tuber of Gastrodia elata Bl. (Orchidaceae) after it has been steamed thoroughly, is a medicinal herb which has been used as an anticonvulsant, analgesic and sedative to treat general paralysis, epilepsy, tetanus and vertigo in Asian countries for thousands of years.

There are at least 16 countries and regions using Gastrodia elata tuber and its products. Major users include China, Japan, South Korea, the United State, Australia, Austria and Singapore. Due to its great demand and high price in the global market, trade in Gastrodia elata tuber has been complicated by adulteration, substitution and species identification issues. The toxic roots of other species, such as the plants of the Phytolaccaceae family, are sometimes misused as Gastrodia elata tuber, which can cause health risks. Factors including contamination, packaging and storage conditions also affect the quality of Gastrodia elata tuber.

The establishment of an international standard for Gastrodia elata tuber is therefore necessary to support its quality consistency, clinical effectiveness and safety in international trade.

As national implementation may differ, National Standards Bodies are invited to modify the values given in 5.3, 5.4, 5.5 and 5.7 in their national standards. Examples of national and regional values are given in Annex F.

1 Scope

This document specifies minimum requirements and test methods for Gastrodia elata tuber that is derived from cultivated and artificially propagated Gastrodia elata Bl.

It is applicable to Gastrodia elata tuber that is sold and used as Chinese materia medica, specifically excluding the wild forms of the species.

2 Normative references

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

Bibliography