Abstract
The aim of this study was to establish the optimum harvesting time and the content of flavonoids in the leaves, stems, and roots of Artemisia montana Pamp. A. montana was monitored from June to October in 2012. The yield of A. montana at high density (30 × 10 cm) was higher than that of A. montana at low density (30 × 20 and 30 cm). Yield in terms of dry weight was increased with an extended growth period and development stage. High yield achieved at 2580 and 2757 kg?10 a?1 in September and October, respectively. Among the leaves, stems, and underground plant organs, jaceosidin and eupatilin were mainly detected in the leaves, and the highest levels were observed in June, at values of 66.6 and 158.2 mg?100 g?1, respectively. In contrast, apigenin was the major compound detected in the underground plant organs, with levels ranging from 21.2 to 29.5 mg?100 g?1 until September. Therefore, optimal harvest times were between September and October, generating a high yield and adding economic value although a higher level of total flavonoids was observed in crops harvested in June.
Highlights
Medicinal plants have long been recognized as natural herbs that have minimal to negligible side effects
A. montana was collected from Gyeongsangbukdo Ulleung-gun and planted in a test package at the Department of Herbal Crop Research of the Korean National Institute of Horticultural & Herbal Science on May 10, 2012
A. montana seeds were oblong in shape, and the hairless achene was wrapped in a white fruit coat
Summary
Medicinal plants have long been recognized as natural herbs that have minimal to negligible side effects. Ae-yeop has been used as a medicinal herb [6]; it imparts warmth to the body and controls blood circulation, body temperature, bleeding, and pregnancy. It has been used as a remedy for abdominal pain due to complications, diarrhea, chronic diarrhea, hematemesis, epistaxis, melena, and amenorrhea [7]. Flavonoids are known to possess excellent antioxidant activity that effectively eliminates reactive oxygen species, as well as a variety of other biological activities, including anti-cancer and anti-inflammatory activities [10]. It has been proven to have antioxidant and anti-diabetic effects because of components such as caffeic acid, caffeoylquinic acid, catechol, OPEN ACCESS
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