棉花后工业织废料的利用为乳酸:化学机械预处理,分离水解和使用人工酵母进行发酵
Marta Simonetti1,2, Pietro Butti2, Raffaella Desiré Di Lorenzo2
1Cotonificio Albini S.P.A., Albino, 24021, Bergamo, Italy.
Microbial cell factories
|April 10, 2024
概括
这项研究使用化学机械和酶过程将织废物转化为乳酸. 这种可持续的方法从工业副产品中产生有价值的化学物质,促进制造业的循环生物经济.
科学领域:
- 生物技术是生物技术.
- 化学工程是化学工程的重要组成部分.
- 可持续化学 可持续化学
背景情况:
- 织行业由于其线性经济模式而产生大量的废物.
- 只有不到1%的织废物被回收成新服装,而75%的废物最终被填埋在垃圾场.
- 提升织废物的价值为传统资源枯竭和废物产生提供了一个可持续的替代方案.
研究的目的:
- 探索利用棉织物废弃物转化为乳酸,这是一个关键的化学构建块.
- 开发一种可用于工业的方法来处理后工业棉花废物.
- 为了证明在织制造业中循环生物经济方法的可行性.
主要方法:
- 棉布废弃物通过机械破碎和性处理 (16% NaOH) 进行了预处理.
- 预处理废物的酶性水解产生了富含葡萄糖的水解盐.
- 工程化Saccharomyces cerevisiae菌株 CEN.PK m850发酵葡萄糖以产生L-乳酸.
主要成果:
- 通过化学-机械预处理和酶化水解,最大的葡萄糖回收率为74.96g/L.
- 这一过程有效地利用了棉花织废物和含NaOH的废水.
- 发酵产生了53.04g/L的L-乳酸,产量为82.7%,与对照条件相比.
结论:
- 棉花后工业废弃物可以作为生物炼油厂中商品化学生产的可行原料.
- 该研究提出了一种新的战略,用于在织制造业中实施循环生物经济原则.
- 这种方法有助于减少废物,提高服装行业的资源利用率.
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