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<p>This comprehensive study investigated different extraction methods and the chemical profile of high-value compounds obtained from the bracts of banana inflorescences. This biomass was evaluated for the recovery of the non-polar fraction by supercritical fluid extraction (SFE) and Soxhlet (hexane) methods, while the recovery of the polar fraction was obtained by microwave-assisted extraction (MAE), pressurized liquid extraction (PLE), and conventional reflux extraction. SFE with CO<sub>2</sub> at 25&#xa0;MPa achieved the greatest recovery of essential fatty acids (palmitic, oleic, and linoleic) and the highest carotenoid content (2.94&#xa0;mg β-carotene equivalent/100&#xa0;g DW), surpassing the conventional Soxhlet extraction. For polar compounds, PLE (water 150&#xa0;°C) provided the highest performances of process yield (53.09%), total phenolics content—TPC (22.83&#xa0;mg GAE/g DW), and good protein recovery (52.53%), and antioxidant capacities (by ABTS: 489.36; and DPPH: 170.35&#xa0;μmol TEAC/g DW). MAE demonstrated superior extraction efficiency of bioactive compounds. Notably, the phenolic compounds taxifolin, eriodictyol, rosmarinic acid, and abscisic acid were firstly identified in banana inflorescence bracts. The comparative evaluation confirmed the best environmental performance of the methods SFE, MAE, and PLE, compared to conventional processes, achieving an “<i>A</i>” status in the Eco-scale. Therefore, this approach highlights that banana inflorescence bracts are rich in high-value compounds with potential applications in the food, pharmaceutical, and other industries. The adequate selection of solvent and extraction method can help to achieve a sustainable development.</p> Graphical Abstract <p></p>

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Comparative Green Extraction Methods for the Valorization of the Bracts from Banana’s Inflorescence

  • 期刊论文

  • 发表日期：

    2025年12月11日

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  • Gabriel Emiliano Motta,
  • Amanda Tavares Germano,
  • Luciano Vitali,
  • Germán Ayala Valencia,
  • Sandra Regina Salvador Ferreira

摘要

This comprehensive study investigated different extraction methods and the chemical profile of high-value compounds obtained from the bracts of banana inflorescences. This biomass was evaluated for the recovery of the non-polar fraction by supercritical fluid extraction (SFE) and Soxhlet (hexane) methods, while the recovery of the polar fraction was obtained by microwave-assisted extraction (MAE), pressurized liquid extraction (PLE), and conventional reflux extraction. SFE with CO2 at 25 MPa achieved the greatest recovery of essential fatty acids (palmitic, oleic, and linoleic) and the highest carotenoid content (2.94 mg β-carotene equivalent/100 g DW), surpassing the conventional Soxhlet extraction. For polar compounds, PLE (water 150 °C) provided the highest performances of process yield (53.09%), total phenolics content—TPC (22.83 mg GAE/g DW), and good protein recovery (52.53%), and antioxidant capacities (by ABTS: 489.36; and DPPH: 170.35 μmol TEAC/g DW). MAE demonstrated superior extraction efficiency of bioactive compounds. Notably, the phenolic compounds taxifolin, eriodictyol, rosmarinic acid, and abscisic acid were firstly identified in banana inflorescence bracts. The comparative evaluation confirmed the best environmental performance of the methods SFE, MAE, and PLE, compared to conventional processes, achieving an “A” status in the Eco-scale. Therefore, this approach highlights that banana inflorescence bracts are rich in high-value compounds with potential applications in the food, pharmaceutical, and other industries. The adequate selection of solvent and extraction method can help to achieve a sustainable development.

Graphical Abstract