Bioengineered upcycling of biomass waste into moldable, strong and flame-retardant structural materials

IF 5.6 1区农林科学 Q1 AGRICULTURAL ENGINEERING

Industrial Crops and Products Pub Date : 2025-06-07 DOI:10.1016/j.indcrop.2025.121304

Huiqiang Wang , Yang Hao , Yijuan Pu , Deyue Tian , Weihua Zhang , Bi Shi

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引用次数: 0

Abstract

Developing moldable, strong, and fire-retardant structural materials from eco-friendly resources is crucial for addressing environmental challenges associated with petroleum-based polymers. In this work, we present an efficient approach to upcycling biomass waste into high-performance structural materials through fungal engineering and biomimetic mineralization. Woody waste, an abundant and renewable resource, is processed into biomass particles, was bounded together by fungal mycelium, providing excellent moldability and structural integrity. Furthermore, the incorporation of biomimetic mineralization enhances the mechanical properties (compressive strength: ≈5.37 MPa at 80 % strain) and flame retardancy of the materials. The fabricated mineralized mycelium wood (MMW) exhibits outstanding three-dimensional formability, low-density (≈0.175 g/cm³) and biodegradability. Lignocellulose naturally decomposes into nutrients through microbial catabolism, while CaCO₃ reenters the geological cycle, ensuring an environmentally friendly closed-loop system. Additionally, the end-of-life MMW can be mechanically disintegrated and reused, promoting circular economy principles. The wholly plant-derived and sustainable material concept offers an environmentally preferable option to replace synthetic petroleum-based materials, contributing to the advancement of eco-friendly structural materials with significant environmental and industrial implications.

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生物工程将生物质废弃物升级为可塑、坚固和阻燃的结构材料

从环保资源中开发可塑、坚固、阻燃的结构材料对于解决与石油基聚合物相关的环境挑战至关重要。在这项工作中，我们提出了一种通过真菌工程和仿生矿化将生物质废物升级为高性能结构材料的有效方法。木质废弃物是一种丰富的可再生资源，通过真菌菌丝体将其加工成生物质颗粒，具有良好的可塑性和结构完整性。此外，仿生矿化的加入提高了材料的力学性能（抗压强度：在80 %应变下≈5.37 MPa）和阻燃性。所制备的矿化菌丝体木材（MMW）具有良好的三维成形性、低密度（≈0.175 g/cm³）和可生物降解性。木质纤维素通过微生物分解代谢自然分解成营养物质，而碳酸钙₃重新进入地质循环，确保了一个环保的闭环系统。此外，寿命结束的毫米波可以机械分解和再利用，促进循环经济原则。这种完全由植物衍生的可持续材料概念为替代合成石油基材料提供了一种更环保的选择，促进了具有重大环境和工业意义的环保结构材料的发展。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Industrial Crops and Products 农林科学-农业工程

CiteScore

9.50

自引率

8.50%

发文量

1518

审稿时长

43 days

期刊介绍： Industrial Crops and Products is an International Journal publishing academic and industrial research on industrial (defined as non-food/non-feed) crops and products. Papers concern both crop-oriented and bio-based materials from crops-oriented research, and should be of interest to an international audience, hypothesis driven, and where comparisons are made statistics performed.