[Quality analysis of processing products of dried ginger].
OBJECTIVE
To establish the quality standards of roasted ginger and charry ginger prepared from dried ginger.


METHODS
The basic quality information of roasted ginger and charry ginger investigated by analysis of marketed samples. Ten batches of two roasted ginger and charry ginger were prepared in medium-scale from four main growth places by the processed criterion. The quality information includes contents of ash, acid-insoluble ash, water-soluble extract and 6-gingerol. The content of 6-gingerol were determined by HPLC method.


RESULTS
The contents of total ash, acid-insoluble ash and water-soluble extract in processed ginger from medium-scale production were 6.3% - 7.0%, 0.3% - 0.7% and 22.11% - 41.61%, and that in charry ginger were 5.0% - 6.0%, 0.4 - 0.6 % and 20.94% - 44.92%, respectively. The contents of 6-gingerol in roasted ginger from medium-scale production and market samples were 1.05 -5.34 mg x g(-1) and 1.01-4.81 mg x g(-1), and those indexes in charry ginger were 0.43-3.81 mg x g(-1) and 0.44-3.07 mg x g(-1), respectively. Total ash, acid-insoluble ash and water-soluble extract of the two ginger processed products had no obvious difference in batch-to-batch,but the contents of 6-gingerol were closely related to their growth places.


CONCLUSIONS
The above data provide evidences for production and quality control of ginger processed products.
Wang
Weihao
W
Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
Wang
Zhimin
Z
Gao
Huimin
H
Hong
Yumei
Y
D002396:Catechols / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000592:standards; D005233:Fatty Alcohols / Q000737:chemistry; D020939:Zingiber officinale / Q000737:chemistry*; D011786:Quality Control
D002396:Catechols; D004365:Drugs, Chinese Herbal; D005233:Fatty Alcohols; C007845:gingerol