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Catalysts
Special Issues
Isomerization Catalysts
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Isomerization Catalysts

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Catalysis in Organic and Polymer Chemistry".

Deadline for manuscript submissions: closed (30 June 2021) | Viewed by 2860

Special Issue Editors

Dr. Masaki Honda

E-Mail Website
Guest Editor
Faculty of Science and Technology, Meijo University, Nagoya, Japan
Interests: E/Z isomerization of carotenoids; chemical processing of carotenoids; analysis of carotenoids
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Motonobu Goto

E-Mail Website
Guest Editor
Department of Materials Process Engineering, Nagoya University, Nagoya, Japan
Interests: supercritical fluid technology; plasma process; separation engineering; chemical reaction engineering

Special Issue Information

Dear Colleagues, 

Isomerization reactions have practical applications in diverse industries, e.g., improving the octane number of fuels in the energy industry or manipulating sugar in the food industry. The development of technologies to increase the efficiency of these isomerization reactions is a key challenge in sustainable product development. Thus, new catalytic formulation and configuration as well as exploring catalysts from natural resources for improving isomerization efficiency have been of interest to many researchers in recent years.

For this Special Issue, we cordially invite review, expository, and original research articles dealing with recent developments in isomerization catalysts utilized in the field of electronics and in the energy, chemical, and food industries.   

Dr. Masaki Honda
Prof. Dr. Motonobu Goto
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. Catalysts 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 2700 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

  • Sustainable chemistry
  • Green chemistry
  • Green catalyst
  • New catalytic formulation and configuration
  • Cis–trans isomerization
  • Positional isomerization
  • Diastereomer
  • Enantiomer

Published Papers (1 paper)

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Research

12 pages, 2490 KiB  
Article
Enriched (Z)-lycopene in Tomato Extract via Co-Extraction of Tomatoes and Foodstuffs Containing Z-isomerization-accelerating Compounds
by Masaki Honda, Kazuya Murakami, Kohei Ichihashi, Wataru Takada and Motonobu Goto
Catalysts 2021, 11(4), 462; https://doi.org/10.3390/catal11040462 - 1 Apr 2021
Cited by 6 | Viewed by 2209
Abstract
The aim of this study was to promote the Z-isomerization of lycopene in its extraction process from tomato pulp by adding foodstuffs containing Z-isomerization-accelerating compounds. The addition of onion, broccoli, mustard, makonbu (Saccharina japonica), or shiitake mushroom (Lentinus [...] Read more.
The aim of this study was to promote the Z-isomerization of lycopene in its extraction process from tomato pulp by adding foodstuffs containing Z-isomerization-accelerating compounds. The addition of onion, broccoli, mustard, makonbu (Saccharina japonica), or shiitake mushroom (Lentinus edodes) to the ethyl acetate extraction process significantly accelerated the Z-isomerization of lycopene. For example, when lycopene was extracted from tomato pulp at 70 °C without foodstuffs, the total Z-isomer ratio of lycopene in the extract was 38.4 ± 0.5%, whereas when onion, broccoli, mustard, makonbu, and shiitake mushroom were added to the process and the extraction was performed using the same procedure, the total Z-isomer ratios significantly increased to 53.6 ± 0.4, 47.9 ± 0.3, 48.2 ± 0.1, 41.5 ± 0.9, and 42.0 ± 1.2%, respectively. Since the above foodstuffs contain large amounts of carotenoid Z-isomerization-accelerating catalysts, i.e., polysulfides, isothiocyanates, or iodine, those components would promote Z-isomerization of lycopene in the extraction process. Since lycopene Z-isomers potentially have higher bioavailability and biological effects than the all-E-isomer, lycopene extraction with foodstuffs having a Z-isomerization-promoting effect in ethyl acetate should enhance the health benefits of tomato extracts. Full article
(This article belongs to the Special Issue Isomerization Catalysts)
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