A Comparative Study between Vis/NIR Spectroradiometer and NIR Spectroscopy for the Non-Destructive Quality Assay of Different Watermelon Cultivars

In light of the great technological progress in non-destructive quality detection methods, sweetness is no longer essential parameter evaluating watermelon quality. There an aspiration to determine physicochemical characteristics enable us select best cultivars, agricultural practices, and harvest dates. present work, three different cultivars (Lady, Galander, Style) were harvested at consecutive times. Two pieces taken from each sample, one middle (part A) other ends B), track intensity parameters inside watermelon. Parts A B subjected Vis/NIR spectroradiometer (475:1075 nm), near-infrared spectroscopy (NIRS) (950:1650 high-performance liquid chromatography assess Calibration prediction models conducted using partial least squares regressions (PLS). The results indicated that harvesting time significantly influenced color chemical parameters. Quality concentrations markedly degraded towards late harvest. highest sighted for zone A), especially Galander cultivar. Spectroradiometer achieved coefficient (R2P) ≃ 0.88 0.81 attached with lowest value standard error (SEP) 0.03 1.06 chroma (C*) yellowness index (YI). However, findings showed superiority NIRS compared Vis-NIR method. R2P was by values 0.92, 0.91, 0.90, 0.89, 0.85, 0.85 lycopene, total carotenoids, vitamin C, β-carotene, γ-content, TSS, respectively. It could be concluded has ability monitor maturity development dates practically reliably.