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<p><i>Mentha</i> species are widely used in foods, cosmetics, and phytopharmaceuticals, and their functional value is closely linked to phenolic constituents, notably rosmarinic acid (RA) and eriocitrin. Comparative quantitative datasets across commercially relevant mint genotypes cultivated under uniform conditions are still limited. Here, aerial parts of nine <i>Mentha × piperita</i> cultivars (‘Piper-1’, ‘Chocolate’, ‘Citaro’, ‘Multimentha’, ‘Swiss’, ‘Yakima’, ‘Basilicuminze’, ‘Black Mitcham’, ‘Granada’), <i>Mentha × dumetorum</i> ‘Dume-1’, and <i>Mentha arvensis</i> ‘Arven-1’ were extracted with 70% (v/v) ethanol. Eleven phenolic compounds were quantified by HPLC–PDA using external calibration, and antioxidant capacity was evaluated by ABTS•⁺ and DPPH• radical-scavenging assays and FRAP and CUPRAC reducing-power assays. Total HPLC-summed phenolics (ΣHPLC) were highest in <i>M. × piperita</i> ‘Citaro’ and ‘Black Mitcham’, driven mainly by eriocitrin and RA, whereas ‘Arven-1’ showed markedly lower ΣHPLC. Antioxidant responses varied by assay: ‘Yakima’ displayed the strongest ABTS•⁺ scavenging and the highest FRAP values, while ‘Swiss’ also ranked highly across ABTS•⁺/FRAP and showed strong DPPH• performance; in contrast, ‘Arven-1’ generally exhibited weaker activity. Correlation analysis (Pearson and Spearman) and principal component analysis indicated that RA, eriocitrin, rutin, and apigenin-7-O-glucoside were key contributors to antioxidant behaviour and clearly discriminated <i>M. × piperita</i> cultivars from <i>M. × dumetorum</i> and <i>M. arvensis</i>. Overall, <i>M. × piperita</i> cultivars—particularly ‘Yakima’, ‘Swiss’, ‘Citaro’, and ‘Black Mitcham’—emerge as elite candidates for producing phenolic-rich extracts with strong in vitro antioxidant potential, supporting their valorisation as natural antioxidant ingredients and strategic resources for sustainable, circular bioeconomy-oriented value chains in Türkiye.</p>

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Mentha genotypes as rich sources of eriocitrin and rosmarinic acid: phenolic profiling, antioxidant capacity, and implications for a sustainable bioeconomy

  • 期刊论文

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  • 发表日期：

    2026年1月16日

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  • Adem Zorlu,
  • Mahfuz Elmastaş,
  • Merve Soy,
  • Duygu Mısırlı,
  • Fatih Hacımustafaoğlu,
  • İsa Telci,
  • Selma Devrim

摘要

Mentha species are widely used in foods, cosmetics, and phytopharmaceuticals, and their functional value is closely linked to phenolic constituents, notably rosmarinic acid (RA) and eriocitrin. Comparative quantitative datasets across commercially relevant mint genotypes cultivated under uniform conditions are still limited. Here, aerial parts of nine Mentha × piperita cultivars (‘Piper-1’, ‘Chocolate’, ‘Citaro’, ‘Multimentha’, ‘Swiss’, ‘Yakima’, ‘Basilicuminze’, ‘Black Mitcham’, ‘Granada’), Mentha × dumetorum ‘Dume-1’, and Mentha arvensis ‘Arven-1’ were extracted with 70% (v/v) ethanol. Eleven phenolic compounds were quantified by HPLC–PDA using external calibration, and antioxidant capacity was evaluated by ABTS•⁺ and DPPH• radical-scavenging assays and FRAP and CUPRAC reducing-power assays. Total HPLC-summed phenolics (ΣHPLC) were highest in M. × piperita ‘Citaro’ and ‘Black Mitcham’, driven mainly by eriocitrin and RA, whereas ‘Arven-1’ showed markedly lower ΣHPLC. Antioxidant responses varied by assay: ‘Yakima’ displayed the strongest ABTS•⁺ scavenging and the highest FRAP values, while ‘Swiss’ also ranked highly across ABTS•⁺/FRAP and showed strong DPPH• performance; in contrast, ‘Arven-1’ generally exhibited weaker activity. Correlation analysis (Pearson and Spearman) and principal component analysis indicated that RA, eriocitrin, rutin, and apigenin-7-O-glucoside were key contributors to antioxidant behaviour and clearly discriminated M. × piperita cultivars from M. × dumetorum and M. arvensis. Overall, M. × piperita cultivars—particularly ‘Yakima’, ‘Swiss’, ‘Citaro’, and ‘Black Mitcham’—emerge as elite candidates for producing phenolic-rich extracts with strong in vitro antioxidant potential, supporting their valorisation as natural antioxidant ingredients and strategic resources for sustainable, circular bioeconomy-oriented value chains in Türkiye.