4 Discussion
The development of eco-efficient sustainable production processes has been one of the major objectives of biotechnology research over the last decade. Such promise is based on the inherent biodegradability, selectivity, and specificity of biocatalysts [27]. Biotechnological solutions already have replaced chemical processes for the production of biosurfactants, amino acids, and even complex heterocyclic compounds [28, 29]. The research presented in this study aimed to set a basis for the replacement of the highly polluting UCC process [13] by developing a biocatalytic synthesis route for PCL monomers.