Effect of post-harvest treatments of the contents of chicoric acid in Crepidiastrum denticulatum

Title
Effect of post-harvest treatments of the contents of chicoric acid in Crepidiastrum denticulatum
Authors
이희주오상빈김상민
Keywords
post-harvest effect; Crepidiastrum denticulatum; chicoric acid
Issue Date
2015-10
Publisher
2015년도 한국응용생명화학회 천연물분과 심포지엄
Abstract
Crepidiastrum denticulatum grows in East Asia countries such as Korea, Japan, and China and its young roots and leaves have been consumed as edible vegetable in Korea. However, this plant has not been cultivated as farm product until now due to the low demand of consumer. Recently, this plants has been developed as a crop for functional food and its main ingredient showing hepatoprotective activity was identified as chicoric acid (2,3-dicaffeoyltartaric acid). In this study, effect of post-harvest treatment on the contents of chicoric acid in C. denticulatum was examined as an industrial process for producing functional food. Generally, chicoric acid contents in the extract from the aerial pars of C. denticulatum grown in the field located in Pyeongchang area (Gangwon province) and dried under shadow at 20℃ in a small scale were ≥ 70 mg/1 g of extract. In contrast, in a mass scale drying under shadow conducted by 16 farms in plastic house at July, 2015, contents of chicoric acid showed severe decrease, under 30 mg/1 g of extract. Harvest time and drying conditions in the sun and shade had little effect on chicoric acid contents in a small scale. When compared with chicoric acid contents in stems, leaves showed more decrease on chicoric acid level. These results indicated that chicoric acid can be severely affected by moisture or humidity during C. denticulatum post-harvest drying and storage process.
URI
http://pubs.kist.re.kr/handle/201004/50635
Appears in Collections:
KIST Publication > Conference Paper
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