Plants lindur (Bruguiera gymnorrhiza) is one of the plants that have a potential as
a source of bioactive compounds for the antioxidant. This study aimed to determine the
chemical composition, bioactive compound and determine antioxidant activity of leaves,
bark and roots of plants lindur (B. gymnorrhiza). This research was conducted through
several stages proximate test, stratified extraction, phytochemical test, and antioxidant
activity test with DPPH. The highest yield value resulting by ethanol extract of the leaves
is 12,85 % and the lowest was produced by n-hexane root extract that is 0,18 %. The leaves
contain high levels of protein, fat, and water which is the higher of the two parts from the
other samples. Bark containing ash content (4,12%) and carbohydrates (46,02%). Root has
the highest levels of carbohydrates that is 25,91 %. Bioactive components were detected on
ethanol and ethyl acetate extracts of the leaves are flavonoids, tannins, phenols, saponins,
steroids and tritepenoid. Bark extract ethanol, ethyl acetate and ethanol root bark has
bioactive components there are flavonoids, tannins, phenols, saponins, and tritepenoid.
Ethyl acetate extract of the roots only have bioactive components there are flavonoids,
phenols, saponins, and triterpenoids. The potential antioxidant activity produced from
ethyl acetate extracts of bark lindur with IC50 values is 14,21 ppm.
Keywords: Antioxidants, phytochemicals, roots, ethanol, Bruguiera gymnorrhiza
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