The Effects of the Substrate Length and Cultivation Time on the Physical and Mechanical Properties of Mycelium-Based Cushioning Materials from Salix psammophila and Peanut Straw.

IF 3.4 3区 医学 Q1 ENGINEERING, MULTIDISCIPLINARY
Xiaowen Song, Shuoye Chen, Jianxin Wu, Ziyi Cai, Yanfeng Zhang, Risu Na, He Lv, Cong He, Tingting Wu, Xiulun Wang
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Abstract

Mycelium-based biocomposites represent a novel class of environmentally friendly materials. This study investigated the potential of using Salix psammophila and peanut straw as substrates for cultivating Pleurotus ostreatus and Ganoderma lucidum, respectively, to fabricate mycelium-based cushioning materials. The results demonstrated that the Pleurotus ostreatus-based cushion material using Salix psammophila (POSM) outperformed the Ganoderma lucidum-based cushion material using peanut straw (GLPM) in terms of overall performance. Both materials presented optimal comprehensive properties when the cultivation period reached 30 days. Increasing the substrate length enhanced most of the material properties. The resulting density ranged from 0.13 to 0.16 g/cm3, which was higher than that of polystyrene foam. The contact angles of both materials exceeded 120°, whereas their elastic springback rates reached 50.2% and 43.2%, and their thermal conductivities were 0.049 W/m·K and 0.051 W/m·K, respectively. Additionally, thermogravimetric analysis revealed that both materials exhibited similar thermal degradation behavior and relatively high thermal stability. These findings align with those of previous studies on mycelium composites and indicate that the physical and mechanical properties of the materials are largely comparable to those of expanded polystyrene (EPS). In conclusion, the developed mycelium-based cushioning materials promote the efficient utilization of agricultural residues and hold promise as a sustainable alternative to EPS, offering broad application prospects in the transportation and packaging sectors.

基质长度和培养时间对沙柳和花生秸秆菌丝体基缓冲材料物理力学性能的影响
菌丝体基生物复合材料是一类新型的环保材料。本研究探讨了沙柳和花生秸秆分别作为培养平菇和灵芝的基质制备菌丝体基缓冲材料的潜力。结果表明,以沙柳(Salix sammophila)为基材的平菇(plepleus)缓冲材料的综合性能优于以花生秸秆(GLPM)为基材的灵芝(g灵芝)缓冲材料。当培养时间达到30 d时,两种材料的综合性能均达到最佳。增加衬底长度增强了大部分材料的性能。所得密度为0.13 ~ 0.16 g/cm3,高于聚苯乙烯泡沫。两种材料的接触角均超过120°,弹性回弹率分别达到50.2%和43.2%,导热系数分别为0.049 W/m·K和0.051 W/m·K。此外,热重分析表明,两种材料表现出相似的热降解行为和相对较高的热稳定性。这些发现与之前对菌丝复合材料的研究结果一致,表明该材料的物理和机械性能在很大程度上与膨胀聚苯乙烯(EPS)相当。综上所述,所开发的菌丝体基缓冲材料促进了农业废弃物的高效利用,有望成为EPS的可持续替代品,在运输和包装领域具有广阔的应用前景。
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
Biomimetics
Biomimetics Biochemistry, Genetics and Molecular Biology-Biotechnology
CiteScore
3.50
自引率
11.10%
发文量
189
审稿时长
11 weeks
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