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<p>Tomatoes are a rich source of nutrients and bioactive compounds, yet a considerable portion of fresh produce is discarded annually due to market surplus or cosmetic imperfections. This study explores the preliminary valorisation of surplus fresh tomatoes through the simultaneous recovery of lipid, solid and polar fractions from the whole fruit, without drying or other pre-processing steps. Fresh tomato purée was homogenised with a binary solvent system (hexane: ethanol, 2:1 v/v) and centrifuged, yielding three distinct fractions: lipid (LF), solid (SF), and polar (PF). The recovered fractions were characterized by distinct compositional and functional features. LF contained 2.4&#xa0;mg lycopene/100&#xa0;g fresh tomato, indicating the presence of valuable apolar bioactives. SF showed high water absorption capacity (8.0&#xa0;g H₂O/g dry matter) together with emulsifying and film-forming properties, while the PF yielded 42.7&#xa0;mg GAE/100&#xa0;g fresh tomato, indicating a relevant content of phenolic compounds. Overall, this laboratory-scale study provides first evidence of the feasibility of simultaneously recovering multiple fractions from surplus fresh tomatoes and highlights their potential interest as starting materials for future, more comprehensive investigations within a valorisation framework.</p>

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Valorisation of surplus fresh tomatoes through the simultaneous recovery of lipid, solid and polar fractions

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年5月20日

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  • Martina Cofelice,
  • Francesco Lopez,
  • Antonella De Leonardis

摘要

Tomatoes are a rich source of nutrients and bioactive compounds, yet a considerable portion of fresh produce is discarded annually due to market surplus or cosmetic imperfections. This study explores the preliminary valorisation of surplus fresh tomatoes through the simultaneous recovery of lipid, solid and polar fractions from the whole fruit, without drying or other pre-processing steps. Fresh tomato purée was homogenised with a binary solvent system (hexane: ethanol, 2:1 v/v) and centrifuged, yielding three distinct fractions: lipid (LF), solid (SF), and polar (PF). The recovered fractions were characterized by distinct compositional and functional features. LF contained 2.4 mg lycopene/100 g fresh tomato, indicating the presence of valuable apolar bioactives. SF showed high water absorption capacity (8.0 g H₂O/g dry matter) together with emulsifying and film-forming properties, while the PF yielded 42.7 mg GAE/100 g fresh tomato, indicating a relevant content of phenolic compounds. Overall, this laboratory-scale study provides first evidence of the feasibility of simultaneously recovering multiple fractions from surplus fresh tomatoes and highlights their potential interest as starting materials for future, more comprehensive investigations within a valorisation framework.