NDLI: Antioxidant activities and phenolic contents of three red seaweeds (Division: Rhodophyta) harvested from the Gulf of Mannar of Peninsular India

Content Provider	Springer Nature Link
Author	Chakraborty, Kajal Joseph, Deepu Praveen, Nammunayathuputhenkotta Krishnankartha
Copyright Year	2013
Abstract	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, H$_{2}$O$_{2}$ scavenging ability, Fe$^{2+}$ 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· scavenging activity (IC$_{50}$ 0.6 mg/mL), ABTS$^{.+}$ scavenging activity (IC$_{50}$ 0.51 μg/mL), Fe$^{2+}$ chelating ability (IC$_{50}$ 0.70 mg/mL), H$_{2}$O$_{2}$ scavenging activity (IC$_{50}$ 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 (IC$_{50}$ 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.
Starting Page	1924
Ending Page	1935
Page Count	12
File Format	PDF
ISSN	00221155
Journal	Journal of Food Science and Technology
Volume Number	52
Issue Number	4
e-ISSN	09758402
Language	English
Publisher	Springer India
Publisher Date	2013-10-28
Publisher Place	India
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Antioxidant activity Red seaweeds Hypnea sp Jania rubens Phenolics Lipid peroxidation Food Science Nutrition Chemistry/Food Science
Content Type	Text
Resource Type	Article
Subject	Food Science

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Antioxidant activities and phenolic contents of three red seaweeds (Division: Rhodophyta) harvested from the Gulf of Mannar of Peninsular India.

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