Microbial synthesis of vanillin from waste poly(ethylene terephthalate).
Microbial synthesis of vanillin from waste poly(ethylene terephthalate).
复制标题
废聚对苯二甲酸乙二醇酯微生物合成香兰素的研究
DOI:
10.1039/d1gc00931a
复制
发表时间:
2021-07-05
期刊:
影响因子:
--
通讯作者:
Wallace S
中科院分区:
文献类型:
--
作者:
Sadler JC;Wallace S
Poly(ethylene terephthalate) (PET) is an abundant and extremely useful material, with widespread applications across society. However, there is an urgent need to develop technologies to valorise post-consumer PET waste to tackle plastic pollution and move towards a circular economy. Whilst PET degradation and recycling technologies have been reported, examples focus on repurposing the resultant monomers to produce more PET or other second-generation materials. Herein, we report a novel pathway in engineered Escherichia coli for the direct upcycling of PET derived monomer terephthalic acid into the value-added small molecule vanillin, a flavour compound ubiquitous in the food and cosmetic industries, and an important bulk chemical. After process optimisation, 79% conversion to vanillin from TA was achieved, a 157-fold improvement over our initial conditions. Parameters such as temperature, cell permeabilisation and in situ product removal were key to maximising vanillin titres. Finally, we demonstrate the conversion of post-consumer PET from a plastic bottle into vanillin by coupling the pathway with enzyme-catalysed PET hydrolysis. This work demonstrates the first biological upcycling of post-consumer plastic waste into vanillin using an engineered microorganism. An engineered biosynthetic pathway in Escherichia coli enables the one-pot upcycling of post-consumer plastic waste into vanillin.
登录
查看更多内容
影响因子:
5
作者:
Fletcher, Eugene;Pilizota, Teuta;French, Chris E.
通讯作者:
French, Chris E.
影响因子:
4.1
作者:
Inoue, Kazuko;Fukuda, Katsuyuki;Kusano, Kazutomi
通讯作者:
Kusano, Kazutomi
影响因子:
15
作者:
Kunjapur, Aditya M.;Tarasova, Yekaterina;Prather, Kristala L. J.
通讯作者:
Prather, Kristala L. J.
DOI:
10.3390/molecules20046640
发表时间:
2015-04-14
期刊:
Molecules (Basel, Switzerland)
影响因子:
--
作者:
Esparan V;Krings U;Struch M;Berger RG
通讯作者:
Berger RG
影响因子:
37.8
作者:
Jie, Xiangyu;Li, Weisong;Edwards, Peter
通讯作者:
Edwards, Peter