Preparation of Eucommia ulmoides Leaves Antioxidant and its Antioxidation Activity In Vitro

Abstract:

Article Preview

The adsorption and desorption efficiencies on flavonoids and polyphenols from Eucommia ulmoides leaves by different resins were investigated, and the most suitable resin for preparation of Eucommia ulmoides leaves antioxidant was chosen. Then the crude extract of Eucommia ulmoides leaves was adsorbed by resin, and the resin was eluted by 20%, 40%, 60% and 80% (in volume) ethanol elution solution, and then the antioxidants were gotten. The flavonoids and polyphenols in the antioxidants were tested for content. The antioxidation activity in vitro was studied by testing the scavenging capacities on HO•, O2-• and DPPH•. The result showed: the 20%, 40% and 60% ethanol elution solution had good scavenging capacities on HO•, O2-• and DPPH•, and there was a good correlation between the contents of flavonoids and polyphenols and scavenging efficiency on each free radical; the antioxidation activities in vitro of the antioxidants was related to flavonoids and polyphenols, and the polyphenols was the leading working material; there was more polyphenols in 20% ethanol elution solution, and more flavonoids in 60% ethanol elution solution, so different antioxidant on different component content could be gotten by collecting different elution solution.

Info:

Periodical:

Advanced Materials Research (Volumes 152-153)

Edited by:

Zhengyi Jiang, Jingtao Han and Xianghua Liu

Pages:

1537-1542

DOI:

10.4028/www.scientific.net/AMR.152-153.1537

Citation:

W. B. Dong et al., "Preparation of Eucommia ulmoides Leaves Antioxidant and its Antioxidation Activity In Vitro", Advanced Materials Research, Vols. 152-153, pp. 1537-1542, 2011

Online since:

October 2010

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.