Absorbance Values of Five Microalgae Extracts Across 290-320 nm

This dataset contains UV absorbance values measured between 290 and 320 nm for ethanolic extracts of five freshwater microalgae species. The absorbance data were generated to evaluate the in vitro sun protection factor (SPF) of the extracts using the Mansur spectrophotometric method. The dataset supports the assessment of the photoprotective potential of freshwater microalgae as natural sources of UV-protective compounds.