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KMID : 1134820090380091279
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Journal of the Korean Society of Food Science and Nutrition
2009 Volume.38 No. 9 p.1279 ~ p.1283
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Antioxidant Activity of Ethanol Extracts from Horseweed (Erigeron canadensis L.) with Pretreatment Conditions
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Woo Koan-Sik
Song Seok-Bo
Oh Byeong-Geun
Seo Myung-Chul
Ko Jee-Yeon
Lee Jae-Saeng
Kang Jong-Rae
Nam Min-Hee
Jeong Heon-Sang
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Abstract
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In order to investigate the potential characteristics of horseweed (Erigeron canadensis L.) recognized with weeds for the application to food industry, the antioxidative properties of horseweed were measured with total polyphenol, flavonoid, tannin, chlorophyll contests and antioxidant activities. Total polyphenol, flavonoid, tannin, and chlorophyll content were 63.32, 27.71, 161.19, and 428.85 ㎎/g in the extracts of fresh horseweed (FHE), respectively. The extracts of dry horseweed (DHE) on 40℃ for 48 hr were 89.25, 33.44, 210.44, and 229.29 ㎎/g, and the extracts of dry horseweed after blanching (BDHE) were 115.49, 45.51, 252.54, and 283.07 ㎎/g, respectively. IC50 of EDA (electron donating ability, %) and AEAC (L-ascorbic acid equivalent antioxidant capacity) were 5.5527 ㎎/mL and 192.78 ㎎ AA eq/g sample in the FHE, respectively. The DHE were 0.4710 ㎎/mL and 194.05 ㎎ AA eq/g sample, and the BDHE were 0.4135 ㎎/mL and 242.40 ㎎ AA eq/g sample, respectively. Horseweed, where the antioxidant activity is excellent, is thought to be potentially useful with foodstuffs.
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KEYWORD
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horseweed (Erigeron canadensis L.), polyphenol, electron donating ability (EDA), ascorbic acid equivalent antioxidant capacity (AEAC)
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