Abstract
The species H. micronesica and H. macroloba are a group of green seaweed (Chlorophyta) which are found in the waters of Pulau Maspari. The purposes of this study was to analyze the activity of antioxidant and phytochemicals compounds of the active extract of seaweed H. micronesica and H. macroloba originate from the Maspari Island. The procedures in this study include; collecting and handled samples, stratified maceration both samples using a solvent ethyl acetate (Hmi-EA and Hma-EA) and methanol (Hmi-M and Hma-M), extraction, antioxidants test with DPPH, phytochemical test and analysis IC 50 . The results showed that of the four extracts tested contained an extract that had the ability to inhibit free radicals which extract Hmi-EA. Active extract Hmi-EA had a value of IC 50 52.81 ppm. Active extract Hmi-EA contained alkaloids, steroids and flavonoids. Hmi-EA extract will be highly potential as an antioxidant.
Highlights
H. micronesica and H. macroloba species are a group of green seaweed (Chlorophyta) found in Maspari Island waters, which have been proven to show some biochemical activities
The temperature used in the evaporation process is 40°C so that the compound contained in it is not damaged (Pramesti, 2013). 1.4 Potential test of antioxidant activity Seaweed extract is weighed as much as 0.03 gr and 30 mL of methanol is added which resulted in a stock solution with a concentration of 1 000 ppm
The thallus segment of H. micronesica has a width of 66.15 mm and a segment length of 93.60 mm
Summary
This study aims to analyze the antioxidant activity, phytochemical compounds and total phenolic content of their extracts
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