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Electrochemistry Approaches in Food Industry
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Electrochemistry Approaches in Food Industry

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Food Science and Technology".

Deadline for manuscript submissions: closed (10 April 2022) | Viewed by 14148

Special Issue Editors

Dr. Milan Sys

E-Mail Website
Guest Editor
Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
Interests: molecular electrochemistry; green composite electrode materials; biomimetic catalysis; enzymatic sensors; flow injection analysis; food safety control
Special Issues, Collections and Topics in MDPI journals
Dr. Liridon Berisha

E-Mail Website
Guest Editor
Department of Chemistry, Faculty of Mathematical and Natural Sciences, University of Prishtina “Hasan Prishtina”, George Bush 31, 10000 Prishtine, Kosovo
Interests: electrochemical sensors and biosensors; pharmaceutical analysis; food analysis
Dr. Amirmansoor Ashrafi

E-Mail Website
Guest Editor
Department of Chemistry and Biochemistry, Mendel University in Brno, CZ-613 00 Brno, Czech Republic
Interests: applied electrochemistry; membrane separation; sensors and biosensors; bioelectrochemistry
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

There is currently a great deal of interest in the development of electrochemical devices that could be applied in the food industry. This Special Issue will include original research papers, review articles, and short communications, which will be dedicated to the description of electrochemical approaches in the food industry, namely to modern trends in automated electrochemical biosensors for the continuous monitoring of fermentation, novel electrochemical sensor systems for food safety applications, electrochemical treatments of effluents from food processing industries, electrodialysis in the food processing industry, electrochemical biofilm control, and electroanalytical methods in food quality and safety control.

Dr. Milan Sys
Dr. Liridon Berisha
Dr. Amirmansoor Ashrafi
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.

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Keywords

  • fermentation monitoring
  • electrodialysis
  • biofilm control
  • food safety
  • wastewater treatment
  • electroanalytical methods

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Published Papers (4 papers)

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Research

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10 pages, 1348 KiB  
Article
Bioelectroanalytical Detection of Lactic Acid Bacteria
by Evelina Jing Ying Han, Lola Gonzalez Olias, Stefan Wuertz and Jamie Hinks
Appl. Sci. 2022, 12(3), 1257; https://doi.org/10.3390/app12031257 - 25 Jan 2022
Cited by 1 | Viewed by 2657
Abstract
Lactic acid bacteria (LAB) are an industrial important group of organisms that are notable for their inability to respire without growth supplements. Recently described bioelectroanalytical detectors that can specifically detect and enumerate microorganisms depend on a phenomenon known as extracellular electron transport (EET) [...] Read more.
Lactic acid bacteria (LAB) are an industrial important group of organisms that are notable for their inability to respire without growth supplements. Recently described bioelectroanalytical detectors that can specifically detect and enumerate microorganisms depend on a phenomenon known as extracellular electron transport (EET) for effective detection. EET is often described as a type of microbial respiration, which logically excludes LAB from such a detection platform. However, members of the LAB have recently been described as electroactive with the ability to carry out EET, providing a timely impetus to revisit the utility of bioelectroanalytical detectors in LAB detection. Here, we show that an LAB, Enterococcus faecalis, is easily detected bioelectroanalytically using the defined substrate resorufin-β-d-galactopyranoside. Detection is rapid, ranging from 34 to 235 min for inoculum sizes between 107 and 104 CFU mL−1, respectively. We show that, although the signal achieved by Enterococcus faecalis is comparable to systems that rely on the respiratory EET strategies of target bacteria, E. faecalis is not dependent on the electrode for energy, and it is only necessary to capture small amounts of an organism’s metabolic energy to, in this case 1.6%, to achieve good detection. The results pave the way for new means of detecting an industrially important group of organisms, particularly in the food industry. Full article
(This article belongs to the Special Issue Electrochemistry Approaches in Food Industry)
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8 pages, 1696 KiB  
Article
Electrochemically Activated Screen-Printed Carbon Electrode for Determination of Ibuprofen
by Katarzyna Tyszczuk-Rotko, Jędrzej Kozak and Anna Węzińska
Appl. Sci. 2021, 11(21), 9908; https://doi.org/10.3390/app11219908 - 23 Oct 2021
Cited by 11 | Viewed by 2802
Abstract
In this study, we present a simple, sensitive and selective analytical procedure for the ibuprofen (IBP) analysis using the commercially available screen-printed carbon electrode electrochemically activated (aSPCE) by cyclic voltammetry in 0.1 M NaOH. The quantitative determinations of IBP were carried out in [...] Read more.
In this study, we present a simple, sensitive and selective analytical procedure for the ibuprofen (IBP) analysis using the commercially available screen-printed carbon electrode electrochemically activated (aSPCE) by cyclic voltammetry in 0.1 M NaOH. The quantitative determinations of IBP were carried out in 0.25 M acetate buffer solution of pH 4.5 ± 0.1 using the differential-pulse voltammetry (DPV). Different experimental parameters for DPV analysis were optimized, including pH and concentration of supporting electrolyte, amplitude (ΔEA), scan rate (ν) and modulation time (tm). The linear ranges of calibration curve were from 0.50–20.0 and 20.0–500.0 µM. The detection and quantification limits were estimated to be 0.059 and 0.20 µM. The aSPCE displayed satisfactory repeatability, reproducibility, and selectivity. Furthermore, the DPV procedure with the use of aSPCE was used to determination of IBP in pharmaceutical formulations. The results achieved by DPV show satisfactory agreement with those obtained by manufacturers (the relative errors are in the range of 3.1–4.7%). Full article
(This article belongs to the Special Issue Electrochemistry Approaches in Food Industry)
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10 pages, 1946 KiB  
Article
Electrochemical Behaviour of Tocopherols: Possibilities of Their Simultaneous Voltammetric Detection
by Granit Jashari, Gylxhane Kastrati, Lucie Korecká, Radovan Metelka, Milan Sýs and Amir M. Ashrafi
Appl. Sci. 2021, 11(17), 8095; https://doi.org/10.3390/app11178095 - 31 Aug 2021
Cited by 2 | Viewed by 2477
Abstract
An electroanalytical study for possible simultaneous detection of three naturally occurring isomers of vitamin E (α, γ, and δ-tocopherol) was performed. This research includes several optimization steps, such as selection of electrode material, composition of working medium, selection of electrochemical technique, and parameters [...] Read more.
An electroanalytical study for possible simultaneous detection of three naturally occurring isomers of vitamin E (α, γ, and δ-tocopherol) was performed. This research includes several optimization steps, such as selection of electrode material, composition of working medium, selection of electrochemical technique, and parameters of square-wave voltammetry (SWV), to reach a well-defined recognition of peaks. A glassy carbon electrode, 99.9% acetonitrile containing 0.1 mol L−1 lithium perchlorate, SWV at the potential step of 1 mV, potential amplitude of 25 mV, and frequency of 25 Hz were decided as the most suitable working conditions. Nevertheless, the corresponding anodic peaks were not sufficiently separated due to their overlapping. Thus, four standard evaluation methods (polynomial or linear baseline, zero base, and deconvolution) were compared, and the last-mentioned method was chosen as optimum. Similar linear ranges from 3.0 × 10−6 to 1.0 × 10−5 mol L−1 were obtained for α, γ, and δ-tocopherol, characterized by determination coefficient of 0.998, 0.985, and 0.994, quantification limits of 11.28, 2.70, and 3.67 × 10−6 mol L−1 and detection limits of 3.72, 0.89, and 1.21 × 10−6 mol L−1, respectively. A recovery from 72.0 to 128.5% for different concetration ratios of tocopherols has been achieved. This recovery range is in the accordance with values reported for liquid chromatography. Full article
(This article belongs to the Special Issue Electrochemistry Approaches in Food Industry)
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Review

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22 pages, 2891 KiB  
Review
Electrochemical Control of Biofilm Formation and Approaches to Biofilm Removal
by Iveta Brožková, Libor Červenka, Petra Moťková, Michaela Frühbauerová, Radovan Metelka, Ivan Švancara and Milan Sýs
Appl. Sci. 2022, 12(13), 6320; https://doi.org/10.3390/app12136320 - 21 Jun 2022
Cited by 8 | Viewed by 4492
Abstract
This review deals with microbial adhesion to metal-based surfaces and the subsequent biofilm formation, showing that both processes are a serious problem in the food industry, where pathogenic microorganisms released from the biofilm structure may pollute food and related material during their production. [...] Read more.
This review deals with microbial adhesion to metal-based surfaces and the subsequent biofilm formation, showing that both processes are a serious problem in the food industry, where pathogenic microorganisms released from the biofilm structure may pollute food and related material during their production. Biofilm exhibits an increased resistance toward sanitizers and disinfectants, which complicates the removal or inactivation of microorganisms in these products. In the existing traditional techniques and modern approaches for clean-in-place, electrochemical biofilm control offers promising technology, where surface properties or the reactions taking place on the surface are controlled to delay or prevent cell attachment or to remove microbial cells from the surface. In this overview, biofilm characterization, the classification of bacteria-forming biofilms, the influence of environmental conditions for bacterial attachment to material surfaces, and the evaluation of the role of biofilm morphology are described in detail. Health aspects, biofilm control methods in the food industry, and conventional approaches to biofilm removal are included as well, in order to consider the possibilities and limitations of various electrochemical approaches to biofilm control with respect to potential applications in the food industry. Full article
(This article belongs to the Special Issue Electrochemistry Approaches in Food Industry)
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