Antioxidant and antibacterial properties of selected Thai weed extracts
10.12980/APJTB.4.2014APJTB-2014-0422
- Author:
Narintorn RATTANATA
1
;
Sakda DADUANG
1
;
Suthep PHAETCHANLA
2
;
Wandee BUNYATRATCHATA
3
;
Bundit PROMRAKSA
4
;
Patcharee BOONSIRI
4
;
Ratree TAVICHAKORNTRAKOOL
5
;
Phangthip UTHAIWAT
6
;
Jureerut DADUANG
6
Author Information
1. Department of Biochemistry, Faculty of Science, Khon Kaen University
2. Substance Science Learning Group, Udonpittayanukoon School
3. Department of Microbiology, Faculty of Science, Khon Kaen University
4. Department of Biochemistry, Faculty of Medicine, Khon Kaen University
5. Department of Clinical Microbiology, Faculty of Associated Medical Sciences, Khon Kaen University
6. Department of Clinical Chemistry, Faculty of Associated Medical Sciences, Khon Kaen University
- Publication Type:Journal Article
- Keywords:
Antibacterial activity;
Antioxidant;
Weed
- From:Asian Pacific Journal of Tropical Biomedicine
2014;4(11):890-895
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To analyze antioxidant and antibacterial properties of selected weeds commonly found in Northeast Thailand including Ageratum conyzoides L., Alysicarpus vaginalis L., Commelina bengalensis L., Euphorbia hirta L., Hyptis suaveolens L., Parthenocissus quinquefolia L., and Trianthema portulacastrum L. Methods: Ferric reducing antioxidant power and radical scavenging activity of the aqueous and ethanol weed extracts were determined. Phytochemical screening, total phenolic and flavonoid contents were done. Antibacterial activity against Aeromonas hydrophila, Aeromonas caviae, Edwardsiella tarda, Plesiomonas shigelloides, Ralstonia spp., Xanthomonas campestris pv. Vesicatoria, Salmonella spp. and Shigella spp. was performed by disc diffusion assay. Results: The results showed that Euphorbia hirta extract had the highest total phenolic contents and was the most effective against most of the test organisms compared to the other weed extracts. Hyptis suaveolens ethanol extract weakly inhibited Ralstonia spp. and Salmonella spp. (10.42% and 9.84% inhibition, respectively). Trianthema portulacastrum ethanol extract had 20.10% inhibition against Shigella spp. Parthenocissus quinquefolia aqueous extract strongly inhibited Aeromonas caviae and Aeromonas hydrophila with 55.90% and 59.68% inhibition, respectively. Conclusions: These weeds may be serving as a potential source of antibacterial agents.
