1
|
Wittek O, Römpp A. Autofocusing MALDI MS imaging of processed food exemplified by the contaminant acrylamide in German gingerbread. Sci Rep 2023; 13:5400. [PMID: 37012286 PMCID: PMC10070467 DOI: 10.1038/s41598-023-32004-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 03/21/2023] [Indexed: 04/05/2023] Open
Abstract
Acrylamide is a toxic reaction product occurring in dry-heated food such as bakery products. To meet the requirements laid down in recent international legal norms calling for reduction strategies in food prone to acrylamide formation, efficient chromatography-based quantification methods are available. However, for an efficient mitigation of acrylamide levels, not only the quantity, but also the contaminant's distributions are of interest especially in inhomogeneous food consisting of multiple ingredients. A promising tool to investigate the spatial distribution of analytes in food matrices is mass spectrometry imaging (MS imaging). In this study, an autofocusing MALDI MS imaging method was developed for German gingerbread as an example for highly processed and instable food with uneven surfaces. Next to endogenous food constituents, the process contaminant acrylamide was identified and visualized keeping a constant laser focus throughout the measurement. Statistical analyses based on relative acrylamide intensities suggest a higher contamination of nut fragments compared to the dough. In a proof-of-concept experiment, a newly developed in-situ chemical derivatization protocol is described using thiosalicylic acid for highly selective detection of acrylamide. This study presents autofocusing MS imaging as a suitable complementary method for the investigation of analytes' distributions in complex and highly processed food.
Collapse
Affiliation(s)
- Oliver Wittek
- Bioanalytical Sciences and Food Analysis, University of Bayreuth, Universitaetsstrasse 30, 95447, Bayreuth, Germany
| | - Andreas Römpp
- Bioanalytical Sciences and Food Analysis, University of Bayreuth, Universitaetsstrasse 30, 95447, Bayreuth, Germany.
| |
Collapse
|
2
|
Zhang L, Li Q, Bao Y, Tan Y, Lametsch R, Hong H, Luo Y. Recent advances on characterization of protein oxidation in aquatic products: A comprehensive review. Crit Rev Food Sci Nutr 2022; 64:1572-1591. [PMID: 36122384 DOI: 10.1080/10408398.2022.2117788] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
In addition to microbial spoilage and lipid peroxidation, protein oxidation is increasingly recognized as a major cause for quality deterioration of muscle-based foods. Although protein oxidation in muscle-based foods has attracted tremendous interest in the past decade, specific oxidative pathways and underlying mechanisms of protein oxidation in aquatic products remain largely unexplored. The present review covers the aspects of the origin and site-specific nature of protein oxidation, progress on the characterization of protein oxidation, oxidized proteins in aquatic products, and impact of protein oxidation on protein functionalities. Compared to meat protein oxidation, aquatic proteins demonstrate a less extent of oxidation on aromatic amino acids and are more susceptible to be indirectly oxidized by lipid peroxidation products. Different from traditional measurement of protein carbonyls and thiols, proteomics-based strategy better characterizes the targeted oxidation sites within proteins. The future trends using more robust and accurate targeted proteomics, such as parallel reaction monitoring strategy, to characterize protein oxidation in aquatic products are also given.
Collapse
Affiliation(s)
- Longteng Zhang
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Qian Li
- Department of Food Science, University of Copenhagen, Frederiksberg C, Denmark
| | - Yulong Bao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Yuqing Tan
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - René Lametsch
- Department of Food Science, University of Copenhagen, Frederiksberg C, Denmark
| | - Hui Hong
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Yongkang Luo
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| |
Collapse
|
3
|
Proteolysis and protein oxidation throughout the smoked dry-cured ham process. Food Chem 2021; 362:130207. [PMID: 34090047 DOI: 10.1016/j.foodchem.2021.130207] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 05/06/2021] [Accepted: 05/21/2021] [Indexed: 11/22/2022]
Abstract
During the five stages of smoked dry-cured ham processing, proteolysis and protein oxidation were simultaneously detected in the Biceps femoris (BF) and Semimembranosus (SM) muscles. Proteolysis was more advanced in BF than in SM throughout the process of production. The total FAA increased significantly (p < 0.05) throughout the processing, resulting in higher total FAA content in BF than in SM muscle. SDS-PAGE revealed progressive degradation of sarcoplasmic proteins of investigated muscles, with the pronounced changes for the 69.9-41.7 kDa region. SDS-PAGE of BF showed more intense degradation of myofibrillar proteins due to greater proteolysis in BF. Electrophoresis of myofibrillar proteins evidenced the marked degradation of 130 kDa, 96.7 kDa and 27-20.7 kDa bands in both muscles. A similar trend was observed for protein oxidation in BF and SM, with the final values of 26.36 and 23.7 nmol carbonyls/mg proteins, respectively. The Pearson correlation revealed a strong relationship between protein oxidation and proteolysis.
Collapse
|
4
|
Wang J, Guo M, Wang Q, Dong J, Lu S, Lyu B, Ma X. Antioxidant activities of peptides derived from mutton ham, Xuanwei ham and Jinhua ham. Food Res Int 2021; 142:110195. [PMID: 33773670 DOI: 10.1016/j.foodres.2021.110195] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 01/17/2021] [Accepted: 01/24/2021] [Indexed: 12/28/2022]
Abstract
The aim of the study was to evaluate antioxidant activity of crude peptides with molecular weight less than 3 KDa extracted from Xuanwei ham, Jinhua ham and mutton ham. UPLC-Q-TOF-MS/MS was used for composition analysis of peptides and homologous protein matching. Further, crude peptide (<3 KDa) was purified using G-15 gel filtration chromatography, and the main antioxidant peptide identified. Analysis showed that mutton ham peptide (MHP) has the highest Fe2+ chelating ability, whereas Jinhua ham peptide (JHP) had the highest ABTS and DPPH free radical scavenging ability (P < 0.05). A total of 346, 203 and 296 peptides were identified in JHP, Xuanwei ham peptides (XHP) and MHP, respectively. Most of the peptides were derived from myosin, accounting for 21.97% in JHP, 18.72% in XHP, and 21.96% in MHP. Myosin, actin, myoglobin, troponin, tropomyosin and pyruvate kinase proteins were the main source of peptide differences in the three types of dry cured ham.
Collapse
Affiliation(s)
- Jingyun Wang
- School of Food Science and Technology, Shihezi University, Xinjiang Autonomus Region, Shihezi, China
| | - Meiting Guo
- School of Food Science and Technology, Shihezi University, Xinjiang Autonomus Region, Shihezi, China
| | - Qingling Wang
- School of Food Science and Technology, Shihezi University, Xinjiang Autonomus Region, Shihezi, China
| | - Juan Dong
- School of Food Science and Technology, Shihezi University, Xinjiang Autonomus Region, Shihezi, China
| | - Shiling Lu
- School of Food Science and Technology, Shihezi University, Xinjiang Autonomus Region, Shihezi, China.
| | - Bing Lyu
- School of Food Science and Technology, Shihezi University, Xinjiang Autonomus Region, Shihezi, China
| | - Xuelian Ma
- School of Food Science and Technology, Shihezi University, Xinjiang Autonomus Region, Shihezi, China
| |
Collapse
|
5
|
Evaluation of main post-translational modifications occurring in naturally generated peptides during the ripening of Spanish dry-cured ham. Food Chem 2020; 332:127388. [DOI: 10.1016/j.foodchem.2020.127388] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 06/12/2020] [Accepted: 06/17/2020] [Indexed: 12/21/2022]
|
6
|
Hellwig M. Analysis of Protein Oxidation in Food and Feed Products. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:12870-12885. [PMID: 32237708 DOI: 10.1021/acs.jafc.0c00711] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Food and feed proteins are subject to oxidation reactions during production, processing, and storage. Several individual oxidized amino acids have been described in model systems and food; however, protein oxidation in food is still mostly assessed by the analysis of protein carbonylation. In the present review, the chemistry of protein oxidation and its implications for protein functionality, food flavor, and nutritional physiology are briefly summarized. Limitations of generic methods targeting redox-relevant functional groups and properties of typical reaction products, such as the determination of protein carbonyls and fluorescence spectroscopy, are presented. Methods for the quantitation of individual oxidation products of susceptible amino acids, such as cysteine, methionine, phenylalanine, tyrosine, and tryptophan, are reported. Special regard is paid to limitations resulting from the required hydrolysis procedures and unintended formation of the analytes during sample pretreatment. If available, results from food analysis obtained by different methods are compared. Suggestions and requirements for future works on protein oxidation in food and nutrition are given.
Collapse
Affiliation(s)
- Michael Hellwig
- Chair of Food Chemistry, Technische Universität Dresden, D-01062 Dresden, Germany
| |
Collapse
|
7
|
Yukihiro Y, Zaima N. Application of Mass Spectrometry Imaging for Visualizing Food Components. Foods 2020; 9:foods9050575. [PMID: 32375379 PMCID: PMC7278736 DOI: 10.3390/foods9050575] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 04/15/2020] [Accepted: 04/24/2020] [Indexed: 02/07/2023] Open
Abstract
Consuming food is essential for survival, maintaining health, and triggering positive emotions like pleasure. One of the factors that drive us toward such behavior is the presence of various compounds in foods. There are many methods to analyze these molecules in foods; however, it is difficult to analyze the spatial distribution of these compounds using conventional techniques, such as mass spectrometry combined with high-performance liquid chromatography or gas chromatography. Mass spectrometry imaging (MSI) is a two-dimensional ionization technology that enables detection of compounds in tissue sections without extraction, purification, separation, or labeling. There are many methods for ionization of analytes, including secondary ion mass spectrometry, matrix-assisted laser desorption/ionization, and desorption electrospray ionization. Such MSI technologies can provide spatial information on the location of a specific analyte in food. The number of studies utilizing MSI technologies in food science has been increasing in the past decade. This review provides an overview of some of the recent applications of MSI in food science and related fields. In the future, MSI will become one of the most promising technologies for visualizing the distribution of food components and for identifying food-related factors by their molecular weights to improve quality, quality assurance, food safety, nutritional analysis, and to locate administered food factors.
Collapse
Affiliation(s)
- Yoshimura Yukihiro
- Department of Nutrition, Kobe Gakuin University, 518 Arise, Ikawadani-cho, Nishi-ku, Kobe City 651-2180, Japan
| | - Nobuhiro Zaima
- Department of Applied Biological Chemistry, Graduate School of Agriculture, Kindai University, 204-3327 Nakamachi, Nara City 631-8505, Japan
- Agricultural Technology and Innovation Research Institute, Kindai University,204-3327 Nakamachi, Nara City 631-8505, Japan
| |
Collapse
|
8
|
Sugimoto M, Sugawara T, Obiya S, Enomoto A, Kaneko M, Ota S, Soga T, Tomita M. Sensory properties and metabolomic profiles of dry-cured ham during the ripening process. Food Res Int 2019; 129:108850. [PMID: 32036920 DOI: 10.1016/j.foodres.2019.108850] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 11/16/2019] [Accepted: 11/20/2019] [Indexed: 10/25/2022]
Abstract
Dry-cured ham with a long ripening period is a valuable product worldwide. Ripening time is a key determinant of the endogenous metabolites that characterize the flavor and taste of ham products. While various studies have analyzed the relationship between ripening duration and sensory characteristics, no studies have evaluated ham products produced in Japan. Here, we conducted time-course metabolomic profiling, taste sensor-based analyses, and sensory evaluations by non-trained consumers during ripening. Capillary electrophoresis-mass spectrometry was used to quantify non-volatile metabolites, such as amino acids, organic acids, and nucleotides. In an analysis of eight time-points during 680 days of ripening, the highest score for the after-taste of umami was observed on day 540, despite subtle changes in the scores for other properties. The concentrations of aspartic acid and glutamic acid relative to those of total amino acids were the highest at this point. This approach can contribute to the understanding of the relationship between the metabolite profile and ripening duration.
Collapse
Affiliation(s)
- Masahiro Sugimoto
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0052, Japan; Research and Development Center for Minimally Invasive Therapies Health Promotion and Preemptive Medicine, Tokyo Medical University, Shinjuku, Tokyo 160-8402, Japan.
| | - Tetsuya Sugawara
- Yamagata Research Institute of Technology, Shonai Testing Facility, Mikawa, Tagawa, Tsuruoka, Yamagata 997-0321, Japan.
| | | | - Ayame Enomoto
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0052, Japan.
| | - Miku Kaneko
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0052, Japan.
| | - Sana Ota
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0052, Japan.
| | - Tomoyoshi Soga
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0052, Japan.
| | - Masaru Tomita
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0052, Japan.
| |
Collapse
|
9
|
Optimization of MALDI-TOF mass spectrometry imaging for the visualization and comparison of peptide distributions in dry-cured ham muscle fibers. Food Chem 2019; 283:275-286. [DOI: 10.1016/j.foodchem.2018.12.126] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 12/29/2018] [Accepted: 12/29/2018] [Indexed: 01/02/2023]
|