ArticleFood chemistry: X2026
Iron-aluminum co-regulation of elemental partitioning and organic matrix remodeling shapes leaf chemical composition and quality traits in tea.
Article in Food chemistry: X, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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1 citing paper in PubMed.
- Correlation analysis of secondary metabolites, metal elements, and anti-BSA denaturation activity in different parts ofFrontiers in plant science · 2026Article
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4 authors.
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Abstract
Tea-leaf quality depends strongly on its chemical composition, which is influenced by both environmental metal availability and internal elemental redistribution. Under acidic growing conditions, iron (Fe) and aluminum (Al) frequently coexist at elevated levels and may jointly affect leaf chemical architecture and quality-related traits. In a factorial Fe × Al hydroponic experiment, we quantified cross-organ partitioning using elemental concentrations, translocation factors, and whole-plant partitioning metrics, and characterized leaf organic matrix composition by FTIR-derived indices for proteinaceous, aromatic, lipid, and polysaccharide domains. Multivariate and path analyses indicated that Fe-Al interactions altered root ionic competition and long-distance metal mobility, consistently coinciding with leaf matrix shifts. Protein-to-polysaccharide, aromatic-to-polysaccharide, and oxidation indices strongly tracked Fe- and Al-related metrics and were more closely associated with polyphenols, free amino acids, and chlorophyll index than individual elemental concentrations. This study demonstrates the utility of FTIR-based chemical profiling combined with chemometric analysis for linking metal-driven elemental redistribution to quality formation in tea leaves.
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