ArticleJournal of agricultural and food chemistry2026
Associations between Fruit Mineral Composition and Polyphenol Profiles across 140 Dessert Apple Cultivars (Malus domestica).
Article in Journal of agricultural and food chemistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Apple polyphenols are key determinants of fruit quality and potential health-related properties, yet their association with fruit mineral composition remains insufficiently characterized at the cultivar scale. We quantified five minerals (K, S, P, Mg, Ca) by ICP-OES and 13 polyphenol variables by HPLC-MS across 140 dessert apple cultivars (Malus domestica) grown under common conditions. FDR-corrected Pearson correlations revealed selective, compound-specific patterns, with potassium and phosphorus showing the strongest positive associations with chlorogenic acid (K: r = 0.55, q = 1.2 × 10-10; P: r = 0.43, q = 2.7 × 10-6), both robust under Spearman analysis. Partial correlations identified potassium as the dominant independent correlate (partial r = 0.39, q = 6.5 × 10-5), while phosphorus, sulfur, and magnesium associations reflected collinearity with potassium. PLS showed only modest coupling (Q2 ≈ 0.06, R2Y ≈ 0.13). Exploratory sulfur-chlorogenic acid and calcium-cyanidin patterns remain preliminary; findings represent cultivar-scale associations, not orchard-management recommendations.
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