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一个生物技术平台,用于对织废弃物混合物的价值化

Erika Zangelmi¹, Nicolò Antonelli¹, Jacopo La Rocca²

¹The Protein Factory 2.0 Lab, Department of Biotechnology and Life Sciences, University of Insubria, via J.H. Dunant 3, 21100 Varese, Italy.

Bioresource technology

|December 10, 2025

概括

这项研究引入了一种绿色工艺,将织废物转化为有价值的化学品. 棉花和PET被酶分解,PET被转化为铁酸,然后使用工程化大肠杆菌转化为protocatechuic acid.

科学领域:

生物技术是生物技术.
绿色化学绿色化学
材料科学材料科学材料科学

背景情况:

织废物,特别是棉花和聚乙烯四甲酸盐 (PET) 的混合物,构成了全球重大环境挑战.
目前的织废物处理方法不可持续,导致污染和资源枯竭.

研究的目的:

开发一种综合的绿色工艺,用于酶降解和复原混合棉-PET织废弃物.
将织废弃物转化为增值化学品,如葡萄糖,甲基乙烯酸 (TPA) 和甲基乙烯酸 (PCA).

主要方法:

机械球磨预处理,然后用纤维化/半纤维化酶将棉花酶化水解成葡萄糖.
对PET进行热处理,然后使用PET-化酶变体进行酶性水解,生成TPA和乙烯基醇.
使用表达特定酶的工程大肠杆菌菌株将TPA生物转化为PCA.

主要成果:

实现了棉花完全转化为葡萄糖,并将PET转化为TPA和乙烯基醇的≥95%.
使用工程化大肠杆菌从TPA中获得≥90%的PCA产量,其中还使用葡萄糖作为碳来源.
每克聚棉织物 (30%棉花,70%PET) 产生大约500毫克PCA,收益率为92%.

结论:

综合生物炼油工艺为织废物利用提供了一个可持续的战略.
这种方法有效地将混合的织废物转化为高价值的芳香化合物.
证明了织行业循环经济解决方案的潜力.

关键词:

循环经济是一个循环经济.棉花棉花棉花棉花工程设计的大肠杆菌.酶治疗方法酶治疗方法聚乙烯四甲酸是一种聚乙烯四甲酸.织废弃物的混合物织废弃物的混合物

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