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Biofunctions of Extracts from Brown Seaweeds

Tamil Selvam, R. (2010) Biofunctions of Extracts from Brown Seaweeds. [Student Project Report]

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Abstract

This Dissertation / Report is the outcome of investigation carried out by the creator(s) / author(s) at the department/division of Central Food Technological Research Institute (CFTRI), Mysore mentioned below in this page.

Item Type: Student Project Report
Additional Information: Seaweeds constitute an integral part of diets in many Asian countries, particularly Japan. In India, seaweeds are not considered as a major food item. The seaweed utilization in India is mainly restricted to production of agar and alginates. Seaweeds grow abundantly along the Tamil Nadu and Gujarat coasts and around Lakshadweep and Andaman and Nicobar islands. Chemical composition of seaweeds varies with species, habitat, geographical area and environmental condition. Thus it is necessary to evaluate the biofunctionality of compounds isolated from seaweeds from different zones. Not much information is available on the activities of biomolecules from Indian seaweeds. Seaweeds need to be exploited not only as a food material but also as a natural source for variety of biomolecules of health benefits. Further, as seaweeds contain variety of biomolecules having different beneficial physiological functions the evaluation of their properties individually and in combinations can lead to lead to development of strategies for complete utilization of seaweeds for betterment of human health. Against this background this study was carried out to evaluate the antioxidant activity of polyphenolic and polysccharides extracts from the Indian brown seaweeds. The polyphenolic compounds from different brown seaweeds were extracted using solvents of different polarity and their antioxidant and antibacterial activity was evaluated. The brown seaweed Turbinaria conoides was hydrolysed using cellulase and the effect of hydrolysis time, enzyme concentration and pH was tested with respect to level of reducing sugar, total sugar, polyphenol content, protein content and DPPH scavenging activity of the hydrolysate.
Uncontrolled Keywords: Seaweeds; solvent extracts; macrophytic algae; polyphenolic compounds
Subjects: 500 Natural Sciences and Mathematics > 07 Life Sciences > 04 Microbiology > 01 Algae
600 Technology > 08 Food technology > 01 Analysis
Divisions: Meat Fish and Poultry Technology
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 02 Jul 2010 06:55
Last Modified: 28 Dec 2011 10:14
URI: http://ir.cftri.com/id/eprint/9449

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