<![CDATA[Harumanis mango leaves are a potential source of extractable antioxidant constituents, but the selection of extraction temperature requires a clear distinction between extract recovery and antioxidant potency. This study examines the apparent extract yield and recorded DPPH response associated with three extraction temperatures. Concentrated extract masses of 27, 31, and 39 g were reported at 40, 50, and 60 °C, respectively, corresponding to apparent mass recoveries of 54, 62, and 78% relative to the starting dried leaf material. The corresponding absorbance values were 0.2974, 0.2365, and 0.2042 against a reported control absorbance of 0.4517. Nominal DPPH inhibition calculated from these values was 34.16, 47.64, and 54.79%, respectively. The 60 °C condition therefore gave the highest recorded extract mass and nominal inhibition within the tested range. These observations remain preliminary because the records available for assessment do not establish independent extraction replication, extract concentration during the DPPH assay, matched control preparation, or drying of the concentrated extracts to constant mass. Accordingly, the results do not establish statistically supported differences in antioxidant potency or a process optimum. The findings identify 60 °C as a candidate for further validation using independently replicated extractions, dry-mass determination, and concentration-controlled antioxidant measurements. This distinction provides a clearer basis for subsequent development of mango leaf extraction processes.]]>
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