Abstract
Ginger has traditionally been used to treat and prevent nausea and vomiting; however,
the results of clinical trials are ambiguous. The efficacy of ginger is attributed
to gingerols and their metabolites, shogaols. Since these compounds have different
pharmacological profiles, the clinical efficacy of ginger products is largely dependent
on their chemical composition. The goal of our study was to examine the stability
of ginger, determining the 6-gingerol contents in order to assess the effects of different
storage conditions. We have performed a 6-month stability test with dry ginger rhizome
samples stored in a constant climate chamber in three different storage containers
(uncovered glass container, glass container sealed with rubber stopper, and plastic
container). The 6-gingerol contents were measured by HPLC method. The concentration
of 6-gingerol decreased in all samples. In the sealed glass container, the decrease
in 6-gingerol content was significantly lower than in
the unsealed glass container and in the plastic container. These results demonstrate
that storage conditions have a significant impact on the quality of ginger, which
may also affect efficacy.
Keywords
Ginger -
Zingiber officinale
- gingerol - HPLC - stability - Zingiberaceae
