|
KMID : 1134820110400040481
|
|
Journal of the Korean Society of Food Science and Nutrition
2011 Volume.40 No. 4 p.481 ~ p.485
|
|
|
Catalpol Content and Antioxidant Activities in Various Cultivars of Rehmannia glutinosa
|
|
You Bo-Ram
Kim Hye-Ran
Kim Hyo-Jin
Lee Ji-Yeon
Lee Sang-Yong
Song Mi-Ran
Park Jong-Yoon
Kim Mee-Ree
|
|
|
Abstract
|
|
|
|
This study was to investigate catalpol content and antioxidant activities in five cultivars (Kokang, Suwon 10, Suwon 11, Jiwhang 1 and Korea) of Rehmannia Radix. Catalpol content was analysed by HPLC using C₁? column (150×4.6 mm, 5 μm), 1% acetonitrile and a UV detector. The standard curve was found to be a linear regression of y＝0.0483x－0.0841 (R²=0.999). The catalpol content ranged from 85.2 mg/g to 144.9 mg/g, of which the Korea was the highest among cultivars. The total phenol content in Rehmannia Radix was 0.358～0.459 mg/g, of which the Korea was the highest among cultivars. The antioxidant activities determined by DPPH and hydroxyl radical scavenging activities were the highest in Korea with IC?? of 205.8 mg/g for DPPH radical scavenging activity and IC?? of 38.8 mg/g for hydroxyl radical scavenging activity. Based on these results, the Korea among Rehmannia Radix cultivars was suggested to be a potent medicinal plant material for antioxidant activities.
|
|
|
KEYWORD
|
|
|
Rehmannia Radix, catalpol, HPLC, antioxidant activities
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|