从玉米水解残留和生物聚合物表征中生产第二代聚酸 - - 农业废物再利用战略
Clara Matte Borges Machado1, Luciana Porto de Souza Vandenberghe1, Ariane Fátima Murawski de Mello1
1Federal University of Paraná, Department of Bioprocess Engineering and Biotechnology, Centro Politécnico, 81531-980, Curitiba, Paraná, Brazil.
International journal of biological macromolecules
|January 13, 2026
概括
这项研究表明,使用林氏纤维素玉米分离物的第二代聚酸 (PHB) 具有成本效益的生产. 由此产生的生物聚合物具有商业级特征,支持可持续的生物经济实践.
科学领域:
- 生物技术和生物聚合物生产
- 可持续材料科学科学 可持续材料科学
- 循环生物经济是一个循环的生物经济.
背景情况:
- 越来越多的塑料污染需要替代石化塑料.
- 聚乙酸 (PHB) 是一种可生物降解的生物聚合物,具有作为塑料替代品的潜力.
- 高昂的PHB生产成本主要是由于昂贵的碳来源.
研究的目的:
- 为了利用纤维素玉米碎片 (LCF) 作为第二代 (2G) PHB生产的低成本基质.
- 通过使用Cupriavidus necator LPB2327.7产生和描述2G PHB.
- 为了比较2G PHB与商业级PHB的性能.
主要方法:
- 使用Cupriavidus necator LPB2327.7.使用LCF产生2G PHB.
- 使用甲酸盐 (NaClO) 提取2G PHB.
- 通过FTIR,XRD,DSC,TGA和CHN分析对2G PHB的表征,与商业PHB相比.
主要成果:
- 从废弃物残留物LCF成功生产了2G PHB.
- 2G PHB 的晶度为58.90%,C/H 含量为57.02%/5.76%,度低 (<0.1%).
- 热分析显示了174.2°C的Tm和294.7°C的Td的内热降解概况,与商业PHB相比.
结论:
- 液化是生产2G PHB的可行,成本高效的原料.
- 生产的2G PHB具有商业级的特性.
- 这种方法与生物炼油厂概念和循环生物经济原则相一致,将废物重定向为高价值的生物分子.
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