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Innovative Food Processing Technologies: Molecular Mechanism and Applications

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

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 11495

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Special Issue Editors

Dr. Junhu Cheng

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Guest Editor

Laboratory of Innovative Food Physical Processing Technology, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
Interests: innovative food physical processing technologies; microwave-assisted technology; IR processing technology; spectral and imaging technologies; multispectral for food quality and safety; biological functional materials in antibacterial applications
Special Issues, Collections and Topics in MDPI journals

Dr. Ji Ma

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Guest Editor

Lab of Innovative Food Physical Processing Technology, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
Interests: rapid detection of food quality and safety; aggregation-induced emission-based sensors; spectral imaging technology; microwave-assisted technology in food processing

Special Issue Information

Dear Colleagues,

This Special Issue is entitled “Innovative Food Processing Technologies: Molecular Mechanisms and Applications”, and the deadline is 31 December 2021. The food industry is an increasingly competitive and dynamic arena, with consumers more aware of what they eat and, more importantly, what they want to eat. In order to deliver higher quality and better consumer-targeted food products and to improve or replace the conventional processing technologies, a number of innovative technologies—also referred to as ‘emerging’ or ‘novel’ technologies—have been proposed, investigated, developed and, in some cases, commercialized. This Special Issue aims to publish high-quality contributions on new developments in innovative food processing technologies for extraction, separation, component modification, and process intensification as well as for making foods safe, extending their shelf-life and retaining more fresh-like sensory and nutritional attributes. The described work should be innovative in its approach and/or in the methods used with advancement of current scientific knowledge and high technical relevance.

Dr. Junhu Cheng
Dr. Ji Ma
Guest Editors

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

process-structure-function relationships at macro-, micro-, or nanoscale
food science-molecular nutrition interaction
nutrition and health food manufacturing
harmful microorganism inactivation and disinfection
hazardous materials, such as mycotoxins, and pesticide reduction
food storage and preservation
food quality and safety monitoring
thermal/non-thermal innovative food processing technologies

Published Papers (5 papers)

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Research

15 pages, 1829 KiB

Open AccessArticle

Responses of Issatchenkia terricola WJL-G4 upon Citric Acid Stress

by Xinyi Liu, Ying Tang, Weiyu Ning, Yihong Bao, Ting Luo and Jinling Wang

Molecules 2022, 27(9), 2664; https://doi.org/10.3390/molecules27092664 - 21 Apr 2022

Cited by 4 | Viewed by 1342

Abstract

This study aimed to elucidate the responses of a novel characterized Issatchenkia terricola WJL-G4 against citric acid stress by performing physiological analysis, morphology observation, and structural and membrane fatty acid composition analysis. The results showed that under citric acid stress, the cell vitality of I. terricola WJL-G4 was reduced. The cell morphology changed with the unclear, uncompleted and thinner cell wall, and degraded the cell structure. When the citric acid concentration was 20 g/L, I. terricola WJL-G4 could tolerate citric acid and maintain the cell structure by increasing the intracellular pH, superoxide dismutase activity, and contents of unsaturated fatty acids. As the citric acid concentration was ≥80 g/L, the stress has exceeded the cellular anti-stress ability, causing substantial cell damage. The cell membrane permeability, the content of membrane lipids, malondialdehyde and superoxide anion increased, but the intracellular pH and superoxide dismutase activities decreased, accompanying the increase of citric acid concentrations. The findings of this work provided a theoretical basis for the responsive mechanism of I. terricola WJL-G4 under high concentrations of citric acid, and can serve as a reference for biological acid reduction in fruit processing. Full article

(This article belongs to the Special Issue Innovative Food Processing Technologies: Molecular Mechanism and Applications)

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14 pages, 3135 KiB

Open AccessArticle

Evaluation of the Effects of Cold Plasma on Cell Membrane Lipids and Oxidative Injury of Salmonella typhimurium

by Xiaoye Lv and Jun-Hu Cheng

Molecules 2022, 27(3), 640; https://doi.org/10.3390/molecules27030640 - 19 Jan 2022

Cited by 5 | Viewed by 1534

Abstract

Salmonella typhimurium (S. typhimurium) is a major causative agent of foodborne illness worldwide. Cold plasma (CP) was used to inactivate S. typhimurium and to investigate the effect of CP on cell membrane lipids and oxidative injury of cells. Results indicated that the inactivation effect of CP on S. typhimurium was positively correlated with the treatment time and voltage. S. typhimurium was undetectable (total number of surviving colonies <2 log CFU/mL) after 5 min treatment with the voltage of 50 V. CP treatment caused damage to the cell membrane of S. typhimurium and the leakage of cell contents, and the relative content of unsaturated fatty acids in cell membrane decreased. Cell membrane lipids were oxidized; the malondialdehyde content increased from 0.219 nmol/mL to 0.658 nmol/mL; the catalase activity of S. typhimurium solution increased from 751 U/mL to 2542 U/mL; and the total superoxide dismutase activity increased from 3.076 U/mL to 4.54 U/mL, which confirmed the oxidative damage in S. typhimurium cell membrane caused by CP treatment. It was demonstrated that the potential application of plasma-mediated reactive oxygen species is suitable for destroying the structures of the cell membrane and ensuring the microbial safety of fresh food samples. Full article

(This article belongs to the Special Issue Innovative Food Processing Technologies: Molecular Mechanism and Applications)

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12 pages, 1245 KiB

Open AccessArticle

High Hydrostatic Pressure Treatment of Oysters (Crassostrea gigas)—Impact on Physicochemical Properties, Texture Parameters, and Volatile Flavor Compounds

by Yuyang Ma, Runfang Wang, Tietao Zhang, Yunsheng Xu, Suisui Jiang and Yuanhui Zhao

Molecules 2021, 26(19), 5731; https://doi.org/10.3390/molecules26195731 - 22 Sep 2021

Cited by 9 | Viewed by 2130

Abstract

High hydrostatic pressure (HHP) treatment is a non-thermal processing technology, which is widely used in the food processing field at present. In this study, the effects of HHP treatment (100~500 MPa for 5 min) on the physicochemical properties, texture parameters, and volatile flavor compounds of oysters were investigated. The results showed that HHP treatment increased the water content while reducing the crude protein and ash content of the oyster. Texture parameters showed that HHP treatment improved the hardness, springiness, chewiness, and cohesiveness of oysters, compared with the control group. In addition, the saturated fatty acid (SFA) content was slightly increased after HHP treatment, while the difference in monounsaturated fatty acid (MUFA) and polyunsaturated fatty acid (PUFA) content was not significant. Furthermore, HHP increased hexenoic aldehyde, 2,4-heptadienal, 1-octene-3-ol, and 2-octen-1-ol and decreased the contents of 3. 6-nadien-1-ol, 3-octanone, and 2-undecanone, suggesting that HHP might inhibit the fishiness of oyster and showed a positive effect on its flavor. Based on the above results, HHP improved the edible qualities such as texture properties and volatile flavor of oysters. This meets the requirements of consumers on the edible quality of seafood and provides new ideas for the development of seafood. Full article

(This article belongs to the Special Issue Innovative Food Processing Technologies: Molecular Mechanism and Applications)

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13 pages, 2628 KiB

Open AccessArticle

Comparison of Different Methods for Extracting the Astaxanthin from Haematococcus pluvialis: Chemical Composition and Biological Activity

by Yicheng Tan, Zhang Ye, Mansheng Wang, Muhammad Faisal Manzoor, Rana Muhammad Aadil, Xinghe Tan and Zhiwei Liu

Molecules 2021, 26(12), 3569; https://doi.org/10.3390/molecules26123569 - 11 Jun 2021

Cited by 15 | Viewed by 3315

Abstract

In this study, the impact of different cell disruption techniques (high-pressure micro fluidization (HPMF), ionic liquids (ILs), multi-enzyme (ME), and hydrochloric acid (HCl)) on the chemical composition and biological activity of astaxanthin (AST) obtained from Haematococcus pluvialis was investigated. Results indicated that all cell disruption techniques had a significant effect on AST composition, which were confirmed by TLC and UPC² analysis. AST recovery from HCl (HCl-AST) and ILs (ILs-AST) cell disruption techniques was dominant by free and monoesters AST, while AST recovery from HPMF (HPMF-AST) and ME (ME-AST) cell disruption techniques was composed of monoesters, diesters, and free AST. Further biological activity analysis displayed that HCl-AST showed the highest ABTS and DPPH activity, while ILs-AST showed better results against the ORAC assay. Additionally, ILs-AST exhibits a stronger anti-proliferation of HepG2 cells in a dose-dependent manner, which was ascribed to AST-induced ROS in to inhibit the proliferative of cancer cells. Full article

(This article belongs to the Special Issue Innovative Food Processing Technologies: Molecular Mechanism and Applications)

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9 pages, 2767 KiB

Open AccessArticle

Inactivation and Membrane Damage Mechanism of Slightly Acidic Electrolyzed Water on Pseudomonas deceptionensis CM2

by Xiao Liu, Mingli Zhang, Xi Meng, Xiangli He, Weidong Zhao, Yongji Liu and Yu He

Molecules 2021, 26(4), 1012; https://doi.org/10.3390/molecules26041012 - 14 Feb 2021

Cited by 19 | Viewed by 1944

Abstract

Pseudomonas is considered as the specific spoilage bacteria in meat and meat products. The purpose of this study was to evaluate the inactivation efficiency and mechanisms of slightly acidic electrolyzed water (SAEW) against Pseudomonas deceptionensis CM2, a strain isolated from spoiling chicken breast. SAEW caused time-dependent inactivation of P. deceptionensis CM2 cells. After exposure to SAEW (pH 5.9, oxidation–reduction potential of 945 mV, and 64 mg/L of available chlorine concentration) for 60 s, the bacterial populations were reduced by 5.14 log reduction from the initial load of 10.2 log₁₀ CFU/mL. Morphological changes in P. deceptionensis CM2 cells were clearly observed through field emission-scanning electron microscopy as a consequence of SAEW treatment. SAEW treatment also resulted in significant increases in the extracellular proteins and nucleic acids, and the fluorescence intensities of propidium iodide and n-phenyl-1-napthylamine in P. deceptionensis CM2 cells, suggesting the disruption of cytoplasmic and outer membrane integrity. These findings show that SAEW is a promising antimicrobial agent. Full article

(This article belongs to the Special Issue Innovative Food Processing Technologies: Molecular Mechanism and Applications)

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