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AKTIVITAS ANTIOKSIDAN DAN TABIR SURYA EKSTRAK METANOL DAUN KACAPIRING (Gardenia jasminoides Ellis)
Kacapiring (Gardenia jasminoides Ellis) is one of the medicine plants that can cure various diseases. Parts of the plants used as medicine are roots, fruit, leaves, and flowers. Its leaves are utilized as a medicine for fever, shortness of breath, high blood pressure, and sprue. However, the study about the exploration and the potential usefulness of the plant is rarely conducted. The research aims to investigate the potency of gardenia leaves methanol extract as an antioxidant and sunscreen. The extraction of the leaves powder was performed by the maceration method using methanol as a solvent. The phytochemical test was conducted to identify the chemical compounds contained in gardenia leaves. Antioxidant activity was tested by DPPH (2,2-diphenyl-1-picrylhydrazyl) method with ascorbate (vitamin C) as a comparison compound. The sunscreen activity test was quantitative analysis using UV-Visible spectrophotometry. The results show that the methanol extract of gardenia leaves contained alkaloids, flavonoids, phenols and tannins, steroids, and saponins in the phytochemical test. The antioxidant activity test provided methanol extract has a strong activity with 43,24 of IC value. The sunscreen activity indicates that the methanol extract has potential usage as an active ingredient of sunscreen protection. However it has a concentrated concentration, so it is dangerous for the skin and can cause skin irritation.
FAKULTAS SAINS DAN TEKNOLOGI, UIN SUNAN KALIJAGA YOGYAKARTA
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