Study on the stability of volatile oil from Ganmao Qingre Granules during temporary storage
Objective To investigate the quality stability of volatile oil from Ganmao Qingre Granules during the temporary storage period.Methods The brown ground glass bottle storing the volatile oil of Ganmao Qingre Granules was temporarily stored in a assembled cold storage with a working temperature of 0～4℃,with menthone as the key quality attribute.The volatile oil of Ganmao Qingre Granules at different storage time points was determined by GC to investigate its stability.Results Through a 20 day stability study on the volatile oil of Ganmao Qingre Granules,the results showed that the content of menthone in the two batches of volatile oil varied within 5%in 10 days.From the perspective of changes in active ingredient content,the volatile oil was stored at 0～4℃and the quality of the volatile oil was stable.Conclusion Appropriate temporary storage conditions can ensure stable quality of volatile oil.
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