Home⇛Science and Technology Journal⇛vol. 4 no. 1 (2014)

Phytochemical Screening and Antioxidant Properties of the Crude Extracts of Pukpuklo (Codium repens), Bal-Balulang (Hydroclathrus) and Gamet (Poryphyra suborbiculata)

Rhian Jaymar D. Ramil

Discipline: Agriculture

 

Abstract:

Antioxidants are important components in the body which play a vital role in eradicating free radicals. A number of antioxidants are found in various dietary sources such as seaweeds. Globally, several studies have indicated that seaweeds are rich sources of phenolic compounds and have antioxidant properties. As was found in several studies, seaweeds, when consumed as part of the diet, provide protection against several chronic oxidative stress-related diseases. This study determined the chemical constituents and comparison of the antioxidant properties of selected seaweeds commonly available in Ilocos Norte. Laboratory experimentation constituted the major portion of the investigation using standard antioxidant drug in measuring the activity of the samples. The experiment focused on the following: seaweeds extraction, phytochemical screening, total phenolics determination using total phenolic content assay and antioxidant property analysis through 2,2 -diphenyl-1-picrylhydrazyl (DPPH) assay, and iron-reducing activity assay. Results showed that Codium repens, Hydroclathrus clathratus and Porphyra suborbiculata contain carbohydrates, proteins, phytosterols, and phenolics, while only Hydroclathrus clathratus had flavonoids. Among the seaweed crude extracts, P. suborbiculata possessed the highest total phenolic content. In addition H. clathratus manifested the greatest capacity to scavenge-free radicals and P. suborbiculata exhibited the strongest iron-reducing power.



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