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Molecules
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Analysis of Food Ingredients and Contaminants Based on Instrumental Methods
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Analysis of Food Ingredients and Contaminants Based on Instrumental Methods

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

Deadline for manuscript submissions: closed (31 January 2024) | Viewed by 3990

Special Issue Editors

Dr. Magdalena Słowik-Borowiec

E-Mail Website
Guest Editor
Department of Biotechnology, Institute of Biology and Biotechnology, College of Natural Sciences, University of Rzeszow, 35-310 Rzeszów, Poland
Interests: analytical chemistry; chromatography; analysis of bioactive ingredients; vitamins; pesticide; organic pollutants
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Ewa Szpyrka

E-Mail Website
Guest Editor
Department of Biotechnology, Institute of Biology and Biotechnology, College of Natural Sciences, University of Rzeszow, 35-310 Rzeszów, Poland
Interests: analytical chemistry; pesticide; biodegradation; organic pollutants; heavy metals; chromatography; mass spectrometry; toxicology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Food analysis is a rapidly developing field of science that deals with the study of the composition of raw materials, food products, food additives and contaminants, as well as biochemical and chemical reactions occurring during their storage and processing. Accurate assessment of food quality has prompted analysts to develop newer, improved, less labor-intensive, faster and more accurate analytical procedures. Knowing the chemical and biochemical composition of food is not only important for the health, well-being and safety of consumers, but also guarantees product quality.

We are inviting the submission of original papers or reviews in the field of food analysis. Topics of interest include bioactive ingredients, food additives (e.g., food preservatives and colors), pollutants, etc. Articles on novel advanced methods for the analysis of such substances are also welcome, as are those assessing the impact of food ingredients, additives and contaminants on health, safety and other aspects of food quality. Original scientific articles and reviews are welcome in this Special Issue.

Dr. Magdalena Słowik-Borowiec
Prof. Dr. Ewa Szpyrka
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

  • analytical methods
  • food additives
  • contaminants
  • chromatography
  • mass spectrometry
  • bioactive compounds
  • functional food

Published Papers (3 papers)

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Research

12 pages, 4461 KiB  
Article
The Fast Quantification of Vitamin B12 in Milk Powder by High-Performance Liquid Chromatography-Inductively Coupled Plasma Mass Spectrometry
by Yue Yang, Biao Zhou and Chenyang Zheng
Molecules 2024, 29(8), 1795; https://doi.org/10.3390/molecules29081795 - 15 Apr 2024
Viewed by 479
Abstract
This study presents a new technique for determining vitamin B12 in milk powder using high-performance liquid chromatography-inductively coupled plasma mass spectrometry (HPLC-ICP-MS). We used ultrasonics with potassium ferrocyanide and zinc acetate solutions to extract the samples. 59Co was employed as the analytical [...] Read more.
This study presents a new technique for determining vitamin B12 in milk powder using high-performance liquid chromatography-inductively coupled plasma mass spectrometry (HPLC-ICP-MS). We used ultrasonics with potassium ferrocyanide and zinc acetate solutions to extract the samples. 59Co was employed as the analytical target for cyanocobalamin. It was separated using a Phenomenex Luna 5 μm C18 (250 × 4.6 mm) chromatographic column with a mobile phase consisting of 1.6 mmol/L EDTA and 0.4 mmol/L KH2PO4 in a 60% v/v methanol solution (pH = 4.0). The sample has an excellent separating degree for free cobalt and cyanocobalamin, and isocratic elution can be finished within 4.0 min. To eliminate the matrix interference due to the presence of milk powder, we applied collision mode (KED). The linear range of cyanocobalamine ranged from 1.0 μg/L to 20 μg/L, with correlation coefficients (r2) of 0.9994. The limit of detection (LOD) was 0.63 μg/kg, and the limit of quantitation (LOQ) was 2.11 μg/kg. The mean recoveries were in the range of 87.4–103.6%. The accuracy and precision of the developed method are well suited for the fast quantification of the trace vitamin B12 in milk powder. Full article
(This article belongs to the Special Issue Analysis of Food Ingredients and Contaminants Based on Instrumental Methods)
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12 pages, 1415 KiB  
Article
Safety Evaluation of Chlorantraniliprole in Lychee Based on Residue and Dietary Risk Assessment
by Yanping Liu, Xiaonan Wang and Siwei Wang
Molecules 2023, 28(21), 7265; https://doi.org/10.3390/molecules28217265 - 25 Oct 2023
Cited by 1 | Viewed by 803
Abstract
This report presents the development of a highly effective method employing high-performance liquid chromatography–tandem mass spectrometry (HPLC-MS/MS) to investigate chlorantraniliprole’s dissipation, risk assessment, and residue distribution in whole lychee fruit and its pulp. Mean recoveries of the samples ranged from 80 to 105%, [...] Read more.
This report presents the development of a highly effective method employing high-performance liquid chromatography–tandem mass spectrometry (HPLC-MS/MS) to investigate chlorantraniliprole’s dissipation, risk assessment, and residue distribution in whole lychee fruit and its pulp. Mean recoveries of the samples ranged from 80 to 105%, exhibiting a relative standard deviation (RSD) of below 8%. The limits of quantification (LOQ) for lychee and pulp were determined as 0.001 mg/kg, and half-lives (t1/2) ranged from 8.0 to 12.2 days. Terminal residue concentrations in whole litchi and pulp were determined as 0.008–0.45 mg/kg and ≤0.001 mg/kg. These residues were treated twice and thrice at two different dosage levels with pre-harvest intervals (PHIs) of 7, 14, and 21 days. The potential chronic risk posed by chlorantraniliprole to humans was non-negligible, as indicated by the risk quotient (RQ) value not exceeding 1. Therefore, this study provides significant fresh data about the safe application of chlorantraniliprole in the production of lychee, which will help China develop maximum residual limits (MRLs). Full article
(This article belongs to the Special Issue Analysis of Food Ingredients and Contaminants Based on Instrumental Methods)
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Graphical abstract

13 pages, 1978 KiB  
Article
A Miniaturized Sample Preparation Method for the Determination of Vitamins A and E in Food Products
by Magdalena Słowik-Borowiec, Natalia Głąb, Sabina Stach and Ewa Szpyrka
Molecules 2023, 28(8), 3449; https://doi.org/10.3390/molecules28083449 - 13 Apr 2023
Cited by 3 | Viewed by 2279
Abstract
A new analytical approach to the simultaneous identification and quantification of vitamins A and E in three representative matrices (Parmesan, spinach, and almonds) was developed. The analyses were based on high-performance liquid chromatography with UV-VIS/DAD detection. The procedure was optimized by a significant [...] Read more.
A new analytical approach to the simultaneous identification and quantification of vitamins A and E in three representative matrices (Parmesan, spinach, and almonds) was developed. The analyses were based on high-performance liquid chromatography with UV-VIS/DAD detection. The procedure was optimized by a significant reduction in the weight of the tested products and quantities of reagents added during the saponification and extraction stages. A full method validation study was performed for retinol at two concentration levels (LOQ and 200 × LOQ), which showed satisfactory results, with recoveries ranging from 98.8 to 110.1%, and an average CV of 8.9%. Linearity was tested in the range of 1–500 µg/mL and showed the coefficient of determination R2 = 0.999. The satisfactory recovery and precision parameters were achieved for α-tocopherol (LOQ and 500 × LOQ) in the range of 70.6–143.2%, with a mean CV equal to 6.5%. The observed linearity for this analyte in the concentration range of 1.06–532.0 µg/mL was R2 = 0.999. The average extended uncertainties were estimated, using a top–down approach of 15.9% and 17.6% for vitamin E and A, respectively. Finally, the method was successfully applied to determine vitamins in 15 commercial samples. Full article
(This article belongs to the Special Issue Analysis of Food Ingredients and Contaminants Based on Instrumental Methods)
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