earticle

영어

A persimmon is mainly raised in Korea, Japan, and China compared with other fruits; the sweet persimmon is a native species and the astringent persimmon is a wild species. Astringent persimmons contain tannic acid which is the water solubility compound tastes astringent. Also, it has functions such as anti-aging and anticancer effect. From old times, the stalk of astringent persimmon has been called Kaki Calyx and used in traditional Korean medicine (TKM). In TKM, the stalk of astringent persimmon is known as useful medicinal herb which is effective on bed-wetting, vomit, and hiccupping. The materials collected from three different geographic area (Gojongsi from Sancheong, Danseongsi from Sancheong, and Bansi from Miryang) with different kinds of cultivar. The samples were provided from Frorest Environment Research Institute in Gyeongsangnam-do. These materials were separated from astringent persimmon to its stalks and peels. Then 70% ethanol extraction from each samples to analyze tannic acid were performed. As a result, tannic acid were included in all of samples and the persimmons of Bansi from Miryang had high percentage of the content compared with other samples. This study would provide useful information about tannic acid content to contribute chances for increasing the income of farmers through utilizing technology development of astringent persimmon. To future study, we will be required to extend any other area and species. We have plan to analyze tannic acid content depending on sampling times and various symptoms.