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Polysaccharides from red seaweeds: Effect of extraction methods on physicochemical characteristics and antioxidant activities by Amal D. Premarathna; Tamer A.E. Ahmed; Garima Kulshreshtha; Sanjida Humayun; Clarisa Naa Shormeh Darko; Vitalijs Rjabovs; Riadh Hammami; Alan T. Critchley; Rando Tuvikene; Maxwell T. Hincke is a Agricultural and Biological Sciences article available to read on EtoBox.
What is Polysaccharides from red seaweeds: Effect of extraction methods on physicochemical characteristics and antioxidant activities about?
Seaweed polysaccharides are reported to possess biological and medicinal properties. Specifically, the antioxidant activity of seaweed extracts is the subject of intensive research due to ever-increasing demands from the food and pharmaceutical industries. The structure and composition of polysaccharides (carrageenan, xylan) extracted from four red seaweed species: Chondrus crispus (CC), Ahnfeltiopsis devoniensis (AD), Sarcodiotheca gaudichaudii (SG) and Palmaria palmata (PP) were compared and correlated with their antioxidant activity. Crude polysaccharide extracts were characterized by NMR ( 1 H and 13 C), HPLC-SEC, and FTIR spectroscopy. Total phenolic content (TPC), total sugars, sulfate and protein content were determined using spectrophotometric methods. The antioxidant capacity of each fractionated polysaccharide sample was evaluated by the following methods: DPPH (2,2-diphenyl-1-picrylhydrazyl radical), ABTS (2,2-azino-bis-[3-ethylbenzothiazoline-6-sulfonic acid]), superoxide dismutase (SOD), ferric-reducing power in FRAP (Ferric-reducing Antioxidant Power) assays, and the hydroxyl radical (OH) scavenging capacity assay. The highest antioxidant activity was found in extract
Who reads Polysaccharides from red seaweeds: Effect of extraction methods on physicochemical characteristics and antioxidant activities?
It is typically read by researchers, students, and practitioners in Agricultural and Biological Sciences.
- Author
- Amal D. Premarathna; Tamer A.E. Ahmed; Garima Kulshreshtha; Sanjida Humayun; Clarisa Naa Shormeh Darko; Vitalijs Rjabovs; Riadh Hammami; Alan T. Critchley; Rando Tuvikene; Maxwell T. Hincke
- Publisher
- Elsevier BV
- Published
- 2024
- Language
- EN
- Field
- Agricultural and Biological Sciences (Life Sciences)