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<p>This study investigates the influence of harvest date on the morphological, physicochemical, and mechanical properties of <i>Triumfetta cordifolia</i> (TC) fibers a relatively underutilized plant resource from equatorial regions. Two maturity stages were considered: early harvest (TCF-EH) and late harvest (TCF-LH). The fibers were characterized using microscopy (SEM), elemental analysis (EDX), structural analysis (XRD), thermal analysis (DSC), and biochemical profiling (HPLC-PAD). Tensile tests revealed that TCF-EH fibers exhibited higher crystallinity (64%), smaller average diameters, a moderate microfibril angle (8.47°), and superior tensile strength (up to 529 MPa) compared to TCF-LH fibers. Additionally, TC fibers were benchmarked against flax and hemp fibers, positioning TCF-EH as a viable alternative for lightweight composite applications. TCF-EH fibers exhibited a tensile strength of 529 MPa, a Young’s modulus of 33.1 GPa, and a crystallinity index of 64%, highlighting their maturity-related superiority. This work highlights the critical role of harvest timing in optimizing the performance of natural fibers, contributing to the broader development of sustainable plant-based resources for bio-based materials. This is the first comprehensive study evaluating how harvest date affects the structural and functional properties of <i>Triumfetta cordifolia</i> bast fibers for biocomposite applications, providing novel insights for optimizing harvest timing to improve fiber performance.</p>

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Effect of harvest time on the properties of Triumfetta cordifolia bast fibres

  • 期刊论文

  • 发表日期：

    2025年9月10日

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  • Armel Edwige Mewoli,
  • César Segovia,
  • Abel Emmanuel Njom,
  • Isabelle Ziegler Devin,
  • Svetlana Terekhina,
  • Fabien Betene Ebanda,
  • Laurent Guillaumat,
  • Atangana Ateba,
  • Brosse Nicolas

摘要

This study investigates the influence of harvest date on the morphological, physicochemical, and mechanical properties of Triumfetta cordifolia (TC) fibers a relatively underutilized plant resource from equatorial regions. Two maturity stages were considered: early harvest (TCF-EH) and late harvest (TCF-LH). The fibers were characterized using microscopy (SEM), elemental analysis (EDX), structural analysis (XRD), thermal analysis (DSC), and biochemical profiling (HPLC-PAD). Tensile tests revealed that TCF-EH fibers exhibited higher crystallinity (64%), smaller average diameters, a moderate microfibril angle (8.47°), and superior tensile strength (up to 529 MPa) compared to TCF-LH fibers. Additionally, TC fibers were benchmarked against flax and hemp fibers, positioning TCF-EH as a viable alternative for lightweight composite applications. TCF-EH fibers exhibited a tensile strength of 529 MPa, a Young’s modulus of 33.1 GPa, and a crystallinity index of 64%, highlighting their maturity-related superiority. This work highlights the critical role of harvest timing in optimizing the performance of natural fibers, contributing to the broader development of sustainable plant-based resources for bio-based materials. This is the first comprehensive study evaluating how harvest date affects the structural and functional properties of Triumfetta cordifolia bast fibers for biocomposite applications, providing novel insights for optimizing harvest timing to improve fiber performance.