Study on Production of Ginkgo biloba Tea with Pile-Fermentation

Abstract:

To produce Ginkgo biloba tea and research the changes of total flavonoids and ginkgolic acids during the process of Ginkgo biloba leaves with pile-fermentation. Pile-fermentation was used to produce Ginkgo biloba leaves.The contents of total flavonoids and ginkgolic acids in different times of fermentation were determined by UV spectrophotometry and HPLC respectively. After pile-fermentation，the colour of Ginkgo biloba leaves was brown.Soup was decreasing bitterness，slightly sweet and mellow taste.During the fermentation，the content of total flavonoids and ginkgolic acids showed a downward trend，total flavonoids dropped 6.86%，ginkgolic acids dropped 29.08%.These results provide reference for reasonable development of Ginkgo biloba leaves.