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Background : Angelica gigas is a perennial herb belonging to the family Umbelliferae. Its roots have been utilized as a traditional medicine. The aim of this study is to increase the yield and two indicator components (decursin and decursinol angelate) of Angelica gigas.
Methods and Results : The roots of A. gigas were harvested 4 times from early September to late October. Two elicitors (micro element, plant hormone) were treated 4 times at intervals of 2 weeks. The two indicator components were analyzed by HPLC. HM treatment group showed the greatest increase in underground part yield and root diameter. The content of two indicator components in underground part were highest in control (non-treatment) group, but the content of elicitor treatment groups were higher in the aerial part. In the ground part of indicator components content tended to decrease in the elicitor treatment groups, but that groups exceeded the total content of indicator components level of 6% set by the Korean Pharmacopoeia.
Conclusion : The highest underground part yield was found in HM treatment group. The highest decursin and decursinol angelate were found in control group. This study provides the basic information for improvement to yield of A. gigas.
