<![CDATA[Breadfruit leaves (Artocarpus altilis) contain phenolic and flavonoid compounds with potential as sunscreens. This study aimed to characterize functional groups and determine the in vitro sunscreen activity of the 96% ethanol extract of breadfruit leaves from Tengaran. The extract was obtained by maceration using 96% ethanol. Functional group analysis was performed using FTIR spectroscopy. Sunscreen activity was tested at concentrations of 200, 400, 600, 800, and 1000 ppm using UV-Vis spectrophotometry (290-320 nm), and SPF values were calculated using the Mansur equation. FTIR results indicated the presence of phenolic and flavonoid compounds characterized by functional groups O-H, C-H aliphatic, C=O, C=C aromatic, C=C alkene, NO₂, and C-O. The SPF values obtained were 24.096; 29.474; 32.449; 38.301; and 40.008, respectively, all falling into the ultra-protection category (>15). In conclusion, the extract contains phenolic and flavonoid functional groups and exhibits potent sunscreen activity with ultra protection.]]>
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