Abstract
© The Author(s), under exclusive licence to Springer Nature B.V. 2025.The processing of mango (Mangifera indica Linn.) generates a significant amount of solid waste (25–40%), with peels and kernels being the most common. The mango kernel predominantly consists of 58–80% starch. The utilisation of starch derived from mango seeds may enhance the economic sustainability of the mango processing sector while also reducing waste and preventing environmental pollution. The study aimed to optimise extraction conditions of starch from totapuri mango kernel employing response surface methodology to enhance starch yield and purity. The Central Composite Design with four independent variables viz., steeping temperature (4–50 ºC), steeping time (2–24 h), pH (9.5–10.2), and sample-to-solvent ratio (1:4 − 1:8) were employed. The optimal conditions of extraction showed the highest starch yield of 35.98 ± 0.29% with 90.01 ± 0.26% purity and minimal total colour difference (ΔE) value. The optimized totapuri kernel starch was further characterised, revealing comparable properties to commercial corn starch with respect to oil binding capacity, paste clarity, particle size, and turbidity. XRD spectra had established the presence of A-type starch, and SEM adequately confirmed the structural attributes of the samples. Thus, totapuri kernel starch showed physiochemical and functional properties comparable to commercial corn starch.
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Springer Nature