Application of Advanced Synthetic Biological Approaches in Microbial Platforms

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Biological Processes and Systems".

Deadline for manuscript submissions: closed (20 February 2024) | Viewed by 4637

Special Issue Editor


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Guest Editor
Graduate School of Engineering, Kobe University, Kobe-shi 657-8501, Japan
Interests: genome biology; synthetic biology; metabolic engineering; microbial platform engineering; bioproduction and bioprocess; prion science and engineering; gene therapy and biologics development; vaccine development

Special Issue Information

Dear Colleagues,

The presence of a robust microbial platform is recognized as one of the key factors in the efficient production of biochemicals and biologics. For many years, the development of microbiological platforms has focused on performing mutations and genetic engineering on hosts screened from natural resources. However, such attempts have been difficult, costly, and time-consuming and have required extensive knowledge. Recently, synthetic biology, which has continued to evolve remarkably in recent years, has greatly spurred the development of new biological systems. This approach is now at the stage of replacing traditional host development for highly efficient production.

The field of synthetic biology mainly includes (1) the synthesis of genes, genomes, and life; (2) the synthesis of new metabolic pathways; (3) modular engineering of proteins; and (4) the development of biosensors, the majority of which can be verified in modified cells. To achieve the various goals of synthetic biology in this approach, we need to know how to properly design and engineer chassis cells that meet the needs in the market. Toward this end, it is important to define the meaning of chassis cells clearly and determine the path how to design and produce microbial platform with novel metabolic function for industrial applications in the future.

This Special Issue focuses on the current progress in synthetic biology-aided pathway rewiring in microbial platform (chassis cells), also in microbial platform development that meet the needs in the industrial processes and discusses its impact on the production of biochemicals and biologics. Therefore, we enthusiastically invite papers related to these such issues. Also, we most welcome to the papers presenting novel inventions with the values of basic research applications for advanced synthetic biology-aided microbial platform development.

Prof. Dr. Prihardi Kahar
Guest Editor

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Published Papers (2 papers)

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Research

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11 pages, 29132 KiB  
Article
Improving the Thermo-Activity and -Stability of Pectate Lyase from Dickeya dadantii DCE-01 for Ramie Degumming
by Huan Xu, Shengwen Duan, Xiangyuan Feng, Qi Yang, Ke Zheng, Yuande Peng and Lifeng Cheng
Processes 2021, 9(12), 2106; https://0-doi-org.brum.beds.ac.uk/10.3390/pr9122106 - 24 Nov 2021
Cited by 4 | Viewed by 1486
Abstract
To improve the thermal stability of pectate lyase for ramie degumming, we modified the novel pectate lyase gene (pelG403) derived from the Dickeya dadantii DCE-01 high-efficiency ramie degumming strain by site-directed mutagenesis. Twelve mutants were acquired, wherein a prospective mutant (A129V) [...] Read more.
To improve the thermal stability of pectate lyase for ramie degumming, we modified the novel pectate lyase gene (pelG403) derived from the Dickeya dadantii DCE-01 high-efficiency ramie degumming strain by site-directed mutagenesis. Twelve mutants were acquired, wherein a prospective mutant (A129V) showed better enzyme activity and thermal stability. Compared with the wild type (PelG403), the specific enzyme activity and the optimal reaction temperature of A129V in the fermentation broth increased by 20.1%, and 5 °C, respectively. Under the conditions of 55 °C and pH 9.0, the weightlessness rate of ramie raw materials of A129V increased by 6.26%. Therefore, this study successfully improved the enzyme activity and heat resistance of PelG403 in an alkaline environment, which may contribute to the development of enzyme preparations and the elucidation of the mechanism for ramie bio-degumming. Full article
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13 pages, 953 KiB  
Review
Valorization of Lignin and Its Derivatives Using Yeast
by Filemon Jalu Nusantara Putra, Prihardi Kahar, Akihiko Kondo and Chiaki Ogino
Processes 2022, 10(10), 2004; https://0-doi-org.brum.beds.ac.uk/10.3390/pr10102004 - 04 Oct 2022
Cited by 4 | Viewed by 2393
Abstract
As the third most plentiful biopolymer after other lignocellulosic derivates such as cellulose and hemicellulose, lignin carries abundant potential as a substitute for petroleum-based products. However, the efficient, practical, value-added product valorization of lignin remains quite challenging. Although several studies have reviewed the [...] Read more.
As the third most plentiful biopolymer after other lignocellulosic derivates such as cellulose and hemicellulose, lignin carries abundant potential as a substitute for petroleum-based products. However, the efficient, practical, value-added product valorization of lignin remains quite challenging. Although several studies have reviewed the valorization of lignin by microorganisms, this present review covers recent studies on the valorization of lignin by employing yeast to obtain products such as single-cell oils (SCOs), enzymes, and other chemical compounds. The use of yeasts has been found to be suitable for the biological conversion of lignin and might provide new insights for future research to develop a yeast strain for lignin to produce other valuable chemical compounds. Full article
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