Antioxidant activity of water-soluble polysaccharide extracted from Eucalyptus cultivated in Lebanon
- Author:
Haddad MARIANNE
;
Zein SALAM
;
Shahrour HAWRAA
;
Hamadeh KAMAR
;
Karaki NADINE
;
Kanaan HUSSEIN
- Keywords:
Eucalyptus;
Polysaccharide;
Fucoidan;
Antioxidant
- From:Asian Pacific Journal of Tropical Biomedicine
2017;7(2):157-160
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To extract and identify the chemical composition of the polysaccharide isolated from the Eucalyptus cultivated in Lebanon and to evaluate its antioxidant activity. Materials: The water-soluble polysaccharide was isolated from Eucalyptus leaves, and its structure was identified by Fourier transform infrared spectroscopy, proton nuclear magnetic resonance, and carbon-13 nuclear magnetic resonance. The antioxidant activity of the active ingredient was screened for its radical scavenging ability using 2,2-diphenyl-1-picryl-hydrazyl radical (DPPH) test. Results: The results of the DPPH test have shown that fucoidan, the polysaccharide isolated from Eucalyptus, exhibited almost the same antioxidant activity against DPPH$as the ascorbic acid did at 100 mg/mL. Conclusions: This natural molecule extracted from a medicinal plant has a promising antioxidant activity and could be used in pharmaceutical and medical applications.
