期刊
JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE
卷 52, 期 4, 页码 1924-1935出版社
SPRINGER INDIA
DOI: 10.1007/s13197-013-1189-2
关键词
Antioxidant activity; Red seaweeds; Hypnea sp; Jania rubens; Phenolics; Lipid peroxidation
资金
- Science and Engineering Research Council (SERC) Scheme from Department of Science and Technology, New Delhi, India [SR/S0/HS-0124/2012 SERB]
The antioxidant activities of methanol extract and its solvent fractions (n-hexane, dichloromethane and ethyl acetate) of three red seaweeds (Hypnea musciformis, H. valentiae, and Jania rubens) collected from the Gulf of Mannar of South eastern coast of India were evaluated, using different in vitro systems, viz., DPPH, ABTS, HO radical scavenging activities, H2O2 scavenging ability, Fe2+ ion chelating ability and reducing potential. Folin-Ciocalteu method was used to determine the total phenolic content of the extracts/fractions, and the results were expressed as mg of gallic acid equivalent (GAE)/g of the seaweed extracts/fractions. Thiobarbituric acid-reactive substances (TBARS) inhibition assay was employed to assess the ability of the seaweed extracts/fractions to inhibit lipid oxidation. Ethyl acetate (EtOAc) fractions of H. musciformis exhibited significantly higher total phenolic content (205.5 mg GAE/g), DPPH u scavenging activity (IC50 0.6 mg/mL), ABTS(center dot+) scavenging activity (IC50 0.51 mu g/mL), Fe2+ chelating ability (IC50 0.70 mg/mL), H2O2 scavenging activity (IC50 0.39 mg/mL), reducing ability (Abs(700 nm) 1.46) and lipid peroxidation inhibitory ability (2.71 MDAEC/kg) (P < 0.05) compared to its n-hexane, DCM fractions, crude MeOH extract and MeOH extracts/fractions of H. valentiae and J. rubens. DCM fraction of J. rubens showed significantly higher hydroxyl radical scavenging activity (IC50 0.55 mg/mL) compared with H. musciformis and H. valentiae (P < 0.05). This study indicated the potential use of red seaweeds, in particular, H. musciformis as candidate species to be used as food supplement for increasing the shelf-life of food industry, and candidates in combating carcinogenesis and inflammatory diseases.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据