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Advances of Oleochemistry and Its Application
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Advances of Oleochemistry and Its Application

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Applied Chemistry".

Deadline for manuscript submissions: 30 September 2024 | Viewed by 2727

Special Issue Editor

Prof. Dr. Wei Liu

E-Mail Website
Guest Editor
1. College of Food Science and Technology, Henan University of Technology, Lianhua Street 100, Zhengzhou 450001, China
2. National Engineering Laboratory for Wheat & Corn Further Processing, Henan University of Technology, Lianhua Street 100, Zhengzhou 450001, China
Interests: oleochemistry; food analysis; development of functional foods

Special Issue Information

Dear Colleagues,

Oleochemistry plays an important role in the transformation of vegetable oils into products. With the development of various industrial fields and sustainable chemistry, oleochemistry has become important in chemical and other industries, including agriculture, cosmetics, medicine and materials. The products of oleochemistry, also called oleochemicals, include fatty acids, glycerol, palm oil and other non-edible oils, fatty alcohols, soap and so on. The process involves transesterification, hydrogenation, oligomerization, epoxidation, cycloaddition, oxidation and other catalytical reactions. Thus, bio-based oleochemicals can be transformed into various chemical products, which meet modern requirements.

This Special Issue aims to cover advances in the research on: (i) innovations in preparing various oleochemicals; (ii) the transformations of oleochemicals, including transesterification, hydrogenation, epoxidation, cycloaddition and other chemical processes; (iii) the further utilization of oleochemicals, such as printing ink, degradable material, biomedical polymers and so on.

Prof. Dr. Wei Liu
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. Molecules is an international peer-reviewed open access semimonthly 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

  • oleochemistry
  • oleochemical
  • preparation
  • transformation
  • utilization

Published Papers (3 papers)

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Research

19 pages, 5858 KiB  
Article
A 4D-Printable Photocurable Resin Derived from Waste Cooking Oil with Enhanced Tensile Strength
by Yan Liu, Meng-Yu Liu, Xin-Gang Fan, Peng-Yu Wang and Shuo-Ping Chen
Molecules 2024, 29(9), 2162; https://doi.org/10.3390/molecules29092162 - 6 May 2024
Viewed by 613
Abstract
In pursuit of enhancing the mechanical properties, especially the tensile strength, of 4D-printable consumables derived from waste cooking oil (WCO), we initiated the production of acrylate-modified WCO, which encompasses epoxy waste oil methacrylate (EWOMA) and epoxy waste oil acrylate (EWOA). Subsequently, a series [...] Read more.
In pursuit of enhancing the mechanical properties, especially the tensile strength, of 4D-printable consumables derived from waste cooking oil (WCO), we initiated the production of acrylate-modified WCO, which encompasses epoxy waste oil methacrylate (EWOMA) and epoxy waste oil acrylate (EWOA). Subsequently, a series of WCO-based 4D-printable photocurable resins were obtained by introducing a suitable diacrylate molecule as the second monomer, coupled with a composite photoinitiator system comprising Irgacure 819 and p-dimethylaminobenzaldehyde (DMAB). These materials were amenable to molding using an LCD light-curing 3D printer. Our findings underscored the pivotal role of triethylene glycol dimethacrylate (TEGDMA) among the array of diacrylate molecules in enhancing the mechanical properties of WCO-based 4D-printable resins. Notably, the 4D-printable material, composed of EWOA and TEGDMA in an equal mass ratio, exhibited nice mechanical strength comparable to that of mainstream petroleum-based 4D-printable materials, boasting a tensile strength of 9.17 MPa and an elongation at break of 15.39%. These figures significantly outperformed the mechanical characteristics of pure EWOA or TEGDMA resins. Furthermore, the EWOA-TEGDMA resin demonstrated impressive thermally induced shape memory performance, enabling deformation and recovery at room temperature and retaining its shape at −60 °C. This resin also demonstrated favorable biodegradability, with an 8.34% weight loss after 45 days of soil degradation. As a result, this 4D-printable photocurable resin derived from WCO holds immense potential for the creation of a wide spectrum of high-performance intelligent devices, brackets, mold, folding structures, and personalized products. Full article
(This article belongs to the Special Issue Advances of Oleochemistry and Its Application)
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15 pages, 6648 KiB  
Article
Optimization of Bear Oil Extraction Process and Hair Growth Activity
by Ziming Wang, Qiu Wang, Yingrui Jin, Kun Guo, Xiaoling Wang and Xueting Feng
Molecules 2024, 29(6), 1311; https://doi.org/10.3390/molecules29061311 - 15 Mar 2024
Viewed by 734
Abstract
According to ancient Chinese books, bear grease has the effects of strengthening muscles and bones, which is beneficial for weakness, but there is relatively little research on it. Thus, the extraction of it is beneficial for compensating for research in this area. In [...] Read more.
According to ancient Chinese books, bear grease has the effects of strengthening muscles and bones, which is beneficial for weakness, but there is relatively little research on it. Thus, the extraction of it is beneficial for compensating for research in this area. In this study, a uniform experimental design method was used to optimize the extraction process of bear grease by enzymatic hydrolysis extraction, and the extraction rate can reach 81.89% under optimized extraction conditions. Furthermore, the components of bear grease obtained by this study were analyzed by GC-MS, and the results showed that ursolic oil was rich in unsaturated fatty acids (67.51%), which was higher than that of the traditional method (66.92%). The composition of bear grease extracted by the enzymatic method was also better than that extracted by the traditional method. In addition, bear grease obtained in this study had the obvious activity of promoting hair growth. The length, weight, and number of hair follicles in the depilation area of mice in the high-dose group were significantly different from those in the blank group (p < 0.01). This study optimized the extraction process of bear grease and conducted a preliminary analysis of its fatty acid composition, which is expected to provide some reference for the development of the medicinal value of bear grease. Full article
(This article belongs to the Special Issue Advances of Oleochemistry and Its Application)
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16 pages, 2964 KiB  
Article
Physico-Chemical Investigation and Antimicrobial Efficacy of Ozonated Oils: The Case Study of Commercial Ozonated Olive and Sunflower Seed Refined Oils
by Silvia Puxeddu, Alessandra Scano, Mariano Andrea Scorciapino, Ilenia Delogu, Sarah Vascellari, Guido Ennas, Aldo Manzin and Fabrizio Angius
Molecules 2024, 29(3), 679; https://doi.org/10.3390/molecules29030679 - 1 Feb 2024
Viewed by 1158
Abstract
Drug resistance represents one of the great plagues of our time worldwide. This largely limits the treatment of common infections and requires the development of new antibiotics or other alternative approaches. Noteworthy, the indiscriminate use of antibiotics is mostly responsible for the selection [...] Read more.
Drug resistance represents one of the great plagues of our time worldwide. This largely limits the treatment of common infections and requires the development of new antibiotics or other alternative approaches. Noteworthy, the indiscriminate use of antibiotics is mostly responsible for the selection of mutations that confer drug resistance to microbes. In this regard, recently, ozone has been raising interest for its unique biological properties when dissolved in natural oils. Ozonated oils have been reported to act in a non-specific way on microorganisms hindering the acquisition of advantageous mutations that result in resistance. Here, we focused on the antimicrobial effect of two commercial olive (OOO) and sunflower seeds (OSO) oils. Nuclear magnetic resonance spectroscopy and thermal analysis showed the change in the chemical composition of the oils after ozonation treatment. Different ozonated oil concentrations were then used to evaluate their antimicrobial profile against Candida albicans, Enterococcus faecalis, Staphylococcus aureus, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Escherichia coli by agar diffusion and broth dilution methods. Cytotoxicity was also evaluated in keratinocytes and epithelial cells. Overall, our results revealed that both OOO and OSO showed a potent microbicidal effect, especially against C. albicans (IC50 = OOO: 0.3 mg/mL and OSO: 0.2 mg/mL) and E. faecalis (IC50 = OOO: 0.4 mg/mL and OSO: 2.8 mg/mL) albeit exerting a certain effect also against S. aureus and E. coli. Moreover, both OOO and OSO do not yield any relevant cytotoxic effect at the active concentrations in both cell lines. This indicates that the ozonated oils studied are not toxic for mammalian cells despite exerting a potent antimicrobial effect on specific microorganisms. Therefore, OOO and OSO may be considered to integrate standard therapies in the treatment of common infections, likely overcoming drug resistance issues. Full article
(This article belongs to the Special Issue Advances of Oleochemistry and Its Application)
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