Catalytic Upgrading of Fermentation Derived Products

A special issue of Fermentation (ISSN 2311-5637). This special issue belongs to the section "Industrial Fermentation".

Deadline for manuscript submissions: closed (30 November 2022) | Viewed by 2177

Special Issue Editor

Center for Crops Utilization Research, Iowa State University, Ames, IA 50011, USA
Interests: industrial fermentation; bio-based product; lignocellulosic biomass; enzymatic hydrolysis; bioprocess development and scale-up; integrated biorefinery, food processing; near-infrared technology

Special Issue Information

Dear Colleagues,

Industrial fermentation is increasingly popular in food, chemical, and pharmaceutical production; as a consequence, the continuing development of fermentation technology is a valuable asset for reducing the dependence on chemicals and products derived from fossil fuels.

A broad range of fermentation derived products can be obtained in a cost-effective way, e.g., bioethanol or higher alcohols, short or medium chain fatty acids, biopolymers, biogas, bio-oils, and platform biochemicals. Fermentation derived-products can serve as alternative and sustainable feedstocks for a wide variety of biobased products. Further upgrading fermentation products via catalytic approaches is currently actively investigated to generate higher value-added products.

The goal of this Special Issue is to publish recent original innovative research findings, as well as review papers on the catalytic upgrading of fermentation-derived products, in which conversion routes involve the use of inorganic or organic, heterogeneous or homogeneous catalysts to achieve high selectivities to targeted higher value-added products. Critical catalysis advancements in novel catalyst development, catalyst composition and morphology analysis, catalyst stability, life cycle and technoeconomic assessment, synthesis mechanism, reaction condition, reactor design, process modeling and optimization, and product purification and recovery are within the domain of this Special Issue.

Dr. Youjie Xu
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Fermentation is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • fermentation technology
  • bio-based products
  • catalytic upgrading
  • material synthesis
  • catalyst characterization
  • catalyst deactivation
  • catalyst design
  • LCA
  • TCA

Published Papers (1 paper)

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Research

12 pages, 2599 KiB  
Article
Conversion of Enantiomers during the Separation of Acetoin from Fermentation Broth
by Jiaxiang Zhang, Zhihao Fu, Xiangying Zhao, Mingjing Yao, Yuchen Li, Liping Liu, Jianjun Liu and Yanjun Tian
Fermentation 2022, 8(7), 312; https://doi.org/10.3390/fermentation8070312 - 30 Jun 2022
Viewed by 1587
Abstract
Acetoin (AC) is an important platform compound with two enantiomers (R)-AC and (S)-AC. Due to its unique spatial structure, optically pure AC has particularly high application in asymmetric synthesis. Highly optically pure AC could be produced from glucose using [...] Read more.
Acetoin (AC) is an important platform compound with two enantiomers (R)-AC and (S)-AC. Due to its unique spatial structure, optically pure AC has particularly high application in asymmetric synthesis. Highly optically pure AC could be produced from glucose using biofermentation technology. In this paper, we have observed that the recovered AC product from the fermentation broth containing (R)-AC was a racemic mixture. The changes of the enantiomeric excess (e.e.) of (R)-AC enantiomers in the feed solution during the recovery process were then investigated, confirming that the racemization occurs during solvent distillation. Further studies showed that high temperature is the main factor affecting the conversion of the two enantiomers, while low temperature significantly prevents this conversion reaction. Therefore, we optimized the solvent recovery process and used vacuum distillation to reduce the distillation process temperature, which effectively prevented the racemization: obtains AC products with more than 98% purity and successfully maintained the proportion of (R)-AC above 96%. To our knowledge, this is the first report on the factors affecting the enantiomeric purity in the downstream extraction process of AC production by fermentation. Full article
(This article belongs to the Special Issue Catalytic Upgrading of Fermentation Derived Products)
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