Abstract
The diverse nutrients found in sweet potato leaves, including vitamins, minerals, and antioxidants, offer a range of health benefits. The presence of carotenoids and polyphenols, both powerful health-promoting compounds, highlights their potential contribution to medical science. The main objective of this study was to ascertain essential functionals substances of antioxidant, phenolic compounds, and β-carotene in the leaves of 14 distinct sweet potato lines cultivated in open field. A comprehensive analysis of antioxidant capacity, phenolic content, and β-carotene was conducted using ABTS, Folin-Ciocalteu, and HPLC techniques, respectively. The study showed that the concentrations of total antioxidants, phenols, and β-carotene differed markedly among the leaf materials. Among the lines, SP-13 stands out with the highest concentration of phenols (124.64 mg/g dry weight), while SP-14 comes in at the opposite end with the lowest amount (62.97 mg/g dry weight) under field conditions. In the case of antioxidant content in line SP-3 showed the highest with 3.55 mg/g dry weight, while SP-14 brings up the lowest with 1.88 mg/g dry weight. Line SP-5 showed the most β-carotene (0.51 mg/g dry weight), while SP-11 had the least (0.05 mg/g dry weight). Therefore, it can be concluded that sweet potato leaves are a valuable dietary source of antioxidants, phenolic compounds, and β-carotene which have beneficial health elements.
Published Version
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