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Ragupathy S, Thirugnanasambandam A, Vinayagam V, Newmaster SG. Nuclear Magnetic Resonance Fingerprints and Mini DNA Markers for the Authentication of Cinnamon Species Ingredients Used in Food and Natural Health Products. PLANTS (BASEL, SWITZERLAND) 2024; 13:841. [PMID: 38592863 PMCID: PMC10975438 DOI: 10.3390/plants13060841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 03/01/2024] [Accepted: 03/12/2024] [Indexed: 04/11/2024]
Abstract
Cinnamomum verum (syn C. zeylanicum) is considered 'true' cinnamon. However, it is reported that less expensive sources of cinnamon from C. cassia (syn C. aromaticum), C. loureiroi, and C. burmannii (toxic coumarin) may be used in the place of C. verum. We lack the quality assurance tools that are required to differentiate C. verum from other cinnamon species when verifying that the correct species is sourced from ingredient suppliers. The current research on cinnamon species authentication using DNA tools is limited to a few species and the use of high-quality DNA extracted from raw leaf materials. The cinnamon bark traded in the supply chain contains much less DNA and poorer-quality DNA than leaves. Our research advances DNA methods to authenticate cinnamon, as we utilized full-length chloroplast genomes via a genome skimming approach for C. burmannii and C. cassia to facilitate the design of optimal mini DNA markers. Furthermore, we developed and validated the use of NMR fingerprints for several commercial cinnamon species, including the quantification of 16 molecules. NMR fingerprints provided additional data that were useful for quality assessment in cinnamon extract powders and product consistency. Both the new mini DNA markers and NMR fingerprints were tested on commercial cinnamon products.
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Affiliation(s)
- Subramanyam Ragupathy
- Natural Health Products (NHP) Research Alliance, College of Biological Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada; (V.V.); (S.G.N.)
| | - Arunachalam Thirugnanasambandam
- Natural Health Products (NHP) Research Alliance, College of Biological Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada; (V.V.); (S.G.N.)
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2
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Kharbach M, Alaoui Mansouri M, Taabouz M, Yu H. Current Application of Advancing Spectroscopy Techniques in Food Analysis: Data Handling with Chemometric Approaches. Foods 2023; 12:2753. [PMID: 37509845 PMCID: PMC10379817 DOI: 10.3390/foods12142753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 06/30/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
In today's era of increased food consumption, consumers have become more demanding in terms of safety and the quality of products they consume. As a result, food authorities are closely monitoring the food industry to ensure that products meet the required standards of quality. The analysis of food properties encompasses various aspects, including chemical and physical descriptions, sensory assessments, authenticity, traceability, processing, crop production, storage conditions, and microbial and contaminant levels. Traditionally, the analysis of food properties has relied on conventional analytical techniques. However, these methods often involve destructive processes, which are laborious, time-consuming, expensive, and environmentally harmful. In contrast, advanced spectroscopic techniques offer a promising alternative. Spectroscopic methods such as hyperspectral and multispectral imaging, NMR, Raman, IR, UV, visible, fluorescence, and X-ray-based methods provide rapid, non-destructive, cost-effective, and environmentally friendly means of food analysis. Nevertheless, interpreting spectroscopy data, whether in the form of signals (fingerprints) or images, can be complex without the assistance of statistical and innovative chemometric approaches. These approaches involve various steps such as pre-processing, exploratory analysis, variable selection, regression, classification, and data integration. They are essential for extracting relevant information and effectively handling the complexity of spectroscopic data. This review aims to address, discuss, and examine recent studies on advanced spectroscopic techniques and chemometric tools in the context of food product applications and analysis trends. Furthermore, it focuses on the practical aspects of spectral data handling, model construction, data interpretation, and the general utilization of statistical and chemometric methods for both qualitative and quantitative analysis. By exploring the advancements in spectroscopic techniques and their integration with chemometric tools, this review provides valuable insights into the potential applications and future directions of these analytical approaches in the food industry. It emphasizes the importance of efficient data handling, model development, and practical implementation of statistical and chemometric methods in the field of food analysis.
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Affiliation(s)
- Mourad Kharbach
- Department of Food and Nutrition, University of Helsinki, 00014 Helsinki, Finland
- Department of Computer Sciences, University of Helsinki, 00560 Helsinki, Finland
| | - Mohammed Alaoui Mansouri
- Nano and Molecular Systems Research Unit, University of Oulu, 90014 Oulu, Finland
- Research Unit of Mathematical Sciences, University of Oulu, 90014 Oulu, Finland
| | - Mohammed Taabouz
- Biopharmaceutical and Toxicological Analysis Research Team, Laboratory of Pharmacology and Toxicology, Faculty of Medicine and Pharmacy, University Mohammed V in Rabat, Rabat BP 6203, Morocco
| | - Huiwen Yu
- Shenzhen Hospital, Southern Medical University, Shenzhen 518005, China
- Chemometrics group, Faculty of Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg, Denmark
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3
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Bacca-Villota P, Acuña-García L, Sierra-Guevara L, Cano H, Hidalgo W. Untargeted Metabolomics Analysis for Studying Differences in High-Quality Colombian Cocoa Beans. Molecules 2023; 28:molecules28114467. [PMID: 37298942 DOI: 10.3390/molecules28114467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/25/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023] Open
Abstract
Colombia is a producer of fine cocoa, according to the International Cocoa Organization; however, most of its exports are in the ordinary cocoa category. To remedy this situation, several national organizations are working to create technological platforms for small producers to certify the quality of their beans. The objective of this study was to identify differential chemical markers in 36 cocoa bean samples from five Colombian departments and associate them with cocoa quality properties. For this purpose, a non-targeted metabolomics approach was performed using UHPLC-HRMS, along with sensory and physicochemical analyses. The 36 samples did not differ in sensory quality, polyphenol content, and theobromine/caffeine ratio. However, the multivariate statistical analysis allowed us to differentiate the samples into four clusters. In addition, a similar grouping of the samples was also observed in the physical analyses. The metabolites responsible for such clustering were investigated with univariate statistical analysis and presumptively identified by comparison of experimental mass spectra with those reported in databases. Alkaloids, flavonoids, terpenoids, peptides, quinolines, and sulfur compounds were identified as discriminants between sample groups. Here, it was presented the metabolic profiles as an important chemical feature for further studies in quality control and more specific characterization of fine cocoa.
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Affiliation(s)
- Paula Bacca-Villota
- Escuela de Química, Universidad Industrial de Santander, Bucaramanga 680002, Colombia
| | - Luis Acuña-García
- Escuela de Química, Universidad Industrial de Santander, Bucaramanga 680002, Colombia
| | - Leidy Sierra-Guevara
- Escuela de Química, Universidad Industrial de Santander, Bucaramanga 680002, Colombia
| | - Herminsul Cano
- Escuela de Química, Universidad Industrial de Santander, Bucaramanga 680002, Colombia
| | - William Hidalgo
- Escuela de Química, Universidad Industrial de Santander, Bucaramanga 680002, Colombia
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4
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Truzzi E, Marchetti L, Fratagnoli A, Rossi MC, Bertelli D. Novel application of 1H NMR spectroscopy coupled with chemometrics for the authentication of dark chocolate. Food Chem 2023; 404:134522. [DOI: 10.1016/j.foodchem.2022.134522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/28/2022] [Accepted: 10/02/2022] [Indexed: 11/22/2022]
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5
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Herrera-Rocha F, Fernández-Niño M, Cala MP, Duitama J, Barrios AFG. Omics approaches to understand cocoa processing and chocolate flavor development: A review. Food Res Int 2023; 165:112555. [PMID: 36869541 DOI: 10.1016/j.foodres.2023.112555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 01/25/2023] [Accepted: 01/29/2023] [Indexed: 02/10/2023]
Abstract
The global market of chocolate has increased worldwide during the last decade and is expected to reach a value of USD 200 billion by 2028. Chocolate is obtained from different varieties of Theobroma cacao L, a plant domesticated more than 4000 years ago in the Amazon rainforest. However, chocolate production is a complex process requiring extensive post-harvesting, mainly involving cocoa bean fermentation, drying, and roasting. These steps have a critical impact on chocolate quality. Standardizing and better understanding cocoa processing is, therefore, a current challenge to boost the global production of high-quality cocoa worldwide. This knowledge can also help cocoa producers improve cocoa processing management and obtain a better chocolate. Several recent studies have been conducted to dissect cocoa processing via omics analysis. A vast amount of data has been produced regarding omics studies of cocoa processing performed worldwide. This review systematically analyzes the current data on cocoa omics using data mining techniques and discusses opportunities and gaps for cocoa processing standardization from this data. First, we observed a recurrent report in metagenomics studies of species of the fungi genus Candida and Pichia as well as bacteria from the genus Lactobacillus, Acetobacter, and Bacillus. Second, our analyzes of the available metabolomics data showed clear differences in the identified metabolites in cocoa and chocolate from different geographical origin, cocoa type, and processing stage. Finally, our analysis of peptidomics data revealed characteristic patterns in the gathered data including higher diversity and lower size distribution of peptides in fine-flavor cocoa. In addition, we discuss the current challenges in cocoa omics research. More research is still required to fill gaps in central matter in chocolate production as starter cultures for cocoa fermentation, flavor evolution of cocoa, and the role of peptides in the development of specific flavor notes. We also offer the most comprehensive collection of multi-omics data in cocoa processing gathered from different research articles.
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Affiliation(s)
- Fabio Herrera-Rocha
- Grupo de Diseño de Productos y Procesos (GDPP), Department of Chemical and Food Engineering, Universidad de los Andes, Bogotá 111711, Colombia
| | - Miguel Fernández-Niño
- Leibniz-Institute of Plant Biochemistry, Department of Bioorganic Chemistry, Weinberg 3, D-06120 Halle, Germany.
| | - Mónica P Cala
- MetCore - Metabolomics Core Facility, Vice-Presidency for Research, Universidad de los Andes, Bogotá, Colombia
| | - Jorge Duitama
- Systems and Computing Engineering Department, Universidad de Los Andes, Bogotá 111711, Colombia
| | - Andrés Fernando González Barrios
- Grupo de Diseño de Productos y Procesos (GDPP), Department of Chemical and Food Engineering, Universidad de los Andes, Bogotá 111711, Colombia.
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6
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Díaz-Muñoz C, Van de Voorde D, Tuenter E, Lemarcq V, Van de Walle D, Soares Maio JP, Mencía A, Hernandez CE, Comasio A, Sioriki E, Weckx S, Pieters L, Dewettinck K, De Vuyst L. An in-depth multiphasic analysis of the chocolate production chain, from bean to bar, demonstrates the superiority of Saccharomyces cerevisiae over Hanseniaspora opuntiae as functional starter culture during cocoa fermentation. Food Microbiol 2023; 109:104115. [DOI: 10.1016/j.fm.2022.104115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 08/03/2022] [Accepted: 08/08/2022] [Indexed: 10/15/2022]
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7
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Untargeted HPLC-MS-based metabolomics approach to reveal cocoa powder adulterations. Food Chem 2023; 402:134209. [DOI: 10.1016/j.foodchem.2022.134209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 09/07/2022] [Accepted: 09/09/2022] [Indexed: 11/17/2022]
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8
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An Easy-to-Use and Cheap Analytical Approach Based on NIR and Chemometrics for Tomato and Sweet Pepper Authentication by Non-volatile Profile. FOOD ANAL METHOD 2022. [DOI: 10.1007/s12161-022-02439-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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9
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1H Nmr Spectroscopy Applied to Identify Chemical Aging Markers In Green Coffee (Coffea arabica L.). Food Chem 2022; 405:134667. [DOI: 10.1016/j.foodchem.2022.134667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 10/10/2022] [Accepted: 10/15/2022] [Indexed: 11/23/2022]
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10
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Chang Y, Chan LY, Kong F, Zhang G, Peng H. An innovative approach for real-time authentication of cocoa butter using a combination of rapid evaporative ionization mass spectrometry and chemometrics. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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11
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Febrianto NA, Zhu F. Composition of methylxanthines, polyphenols, key odorant volatiles and minerals in 22 cocoa beans obtained from different geographic origins. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112395] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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12
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Dimitrakopoulou ME, Matzarapi K, Chasapi S, Vantarakis A, Spyroulias GA. Nontargeted 1 H NMR fingerprinting and multivariate statistical analysis for traceability of Greek PDO Vostizza currants. J Food Sci 2021; 86:4417-4429. [PMID: 34459510 DOI: 10.1111/1750-3841.15873] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 06/28/2021] [Accepted: 07/02/2021] [Indexed: 11/28/2022]
Abstract
In this study, non-targeted 1 H NMR fingerprinting was used in combination with multivariate statistical analyses for the classification of Greek currants based on their geographical origins (Aeghion, Nemea, Kalamata, Zante, and Amaliada). As classification techniques, Principal Component Analysis (PCA) and Partial Least Squares Discriminant Analysis (PLS-DA) were carried out. To elucidate different components according to PDO (Protected Designation of Origin), products from Aeghion (Vostizza) were statistically compared with each one of the four other regions. PLS-DA plots ensure that currants from Kalamata, Nemea, Zante, and Amaliada are well classified with respect to the PDO currants, according to differences observed in metabolites. Results suggest that composition differences in carbohydrates, amino, and organic acids of currants are sufficient to discriminate them in correlation to their geographical origin. In conclusion, currants metabolites which mostly contribute to classification performance of such discriminant analysis model present a suitable alternative technique for currants traceability. The study results contribute information to the currants' metabolite fingerprinting by NMR spectroscopy and their geographical origin. PRACTICAL APPLICATION: This study presents an analytical approach for a high nutritional value Greek PDO product, Vostizza currant. A further research and implementation of this method in food industry, can be the key to food fraud incidents. Thus, application of this work opens up posibilities to "farm to table" mission.
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Affiliation(s)
| | - Konstantina Matzarapi
- Department of Pharmacy, School of Health Sciences, University of Patras, Patras, Greece
| | - Styliani Chasapi
- Department of Pharmacy, School of Health Sciences, University of Patras, Patras, Greece
| | - Apostolos Vantarakis
- Department of Public Health, Medical School, University of Patras, Patras, Greece
| | - Georgios A Spyroulias
- Department of Pharmacy, School of Health Sciences, University of Patras, Patras, Greece
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13
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Dimitrakopoulou ME, Vantarakis A. Does Traceability Lead to Food Authentication? A Systematic Review from A European Perspective. FOOD REVIEWS INTERNATIONAL 2021. [DOI: 10.1080/87559129.2021.1923028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Apostolos Vantarakis
- Department of Public Health, Medical School, University of Patras, Patras, Greece
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14
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Kumar S, D'Souza RN, Behrends B, Corno M, Ullrich MS, Kuhnert N, Hütt MT. Cocoa origin classifiability through LC-MS data: A statistical approach for large and long-term datasets. Food Res Int 2021; 140:109983. [PMID: 33648218 DOI: 10.1016/j.foodres.2020.109983] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 11/26/2020] [Accepted: 12/08/2020] [Indexed: 10/22/2022]
Abstract
Classification of food samples based upon their countries of origin is an important task in food industry for quality assurance and development of fine flavor products. Liquid chromatography -mass spectrometry (LC-MS) provides a fast technique for obtaining in-depth information about chemical composition of foods. However, in a large dataset that is gathered over a period of few years, multiple, incoherent and hard to avoid sources of variations e.g., experimental conditions, transportation, batch and instrumental effects, etc. pose technical challenges that make the study of origin classification a difficult problem. Here, we use a large dataset gathered over a period of four years containing 297 LC-MS profiles of cocoa sourced from 10 countries to demonstrate these challenges by using two popular multivariate analysis methods: principal component analysis (PCA) and linear discriminant analysis (LDA). We show that PCA provides a limited separation in bean origin, while LDA suffers from a strong non-linear dependence on the set of compounds. Further, we show for LDA that a compound selection criterion based on Gaussian distribution of intensities across samples dramatically enhances origin clustering of samples thereby suggesting possibilities for studying marker compounds in such a disparate dataset through this approach. In essence, we show and develop a new approach that maximizes, avoiding overfitting, the utility of multivariate analysis in a highly complex dataset.
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Affiliation(s)
- Santhust Kumar
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany.
| | - Roy N D'Souza
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
| | - Britta Behrends
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
| | - Marcello Corno
- Barry Callebaut AG, Westpark, Pfingstweidstrasse 60, Zurich 8005, Switzerland
| | - Matthias S Ullrich
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
| | - Nikolai Kuhnert
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
| | - Marc-Thorsten Hütt
- Department of Life Sciences and Chemistry, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany
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15
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Augustijn D, de Groot HJM, Alia A. HR-MAS NMR Applications in Plant Metabolomics. Molecules 2021; 26:molecules26040931. [PMID: 33578691 PMCID: PMC7916392 DOI: 10.3390/molecules26040931] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/05/2021] [Accepted: 02/06/2021] [Indexed: 12/24/2022] Open
Abstract
Metabolomics is used to reduce the complexity of plants and to understand the underlying pathways of the plant phenotype. The metabolic profile of plants can be obtained by mass spectrometry or liquid-state NMR. The extraction of metabolites from the sample is necessary for both techniques to obtain the metabolic profile. This extraction step can be eliminated by making use of high-resolution magic angle spinning (HR-MAS) NMR. In this review, an HR-MAS NMR-based workflow is described in more detail, including used pulse sequences in metabolomics. The pre-processing steps of one-dimensional HR-MAS NMR spectra are presented, including spectral alignment, baseline correction, bucketing, normalisation and scaling procedures. We also highlight some of the models which can be used to perform multivariate analysis on the HR-MAS NMR spectra. Finally, applications of HR-MAS NMR in plant metabolomics are described and show that HR-MAS NMR is a powerful tool for plant metabolomics studies.
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Affiliation(s)
- Dieuwertje Augustijn
- Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands;
- Correspondence: (D.A.); (A.A.)
| | - Huub J. M. de Groot
- Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands;
| | - A. Alia
- Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands;
- Institute of Medical Physics and Biophysics, University of Leipzig, Härtelstr. 16–17, D-04107 Leipzig, Germany
- Correspondence: (D.A.); (A.A.)
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16
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Ciaramelli C, Palmioli A, De Luigi A, Colombo L, Sala G, Salmona M, Airoldi C. NMR-based Lavado cocoa chemical characterization and comparison with fermented cocoa varieties: Insights on cocoa's anti-amyloidogenic activity. Food Chem 2020; 341:128249. [PMID: 33038804 DOI: 10.1016/j.foodchem.2020.128249] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 09/12/2020] [Accepted: 09/26/2020] [Indexed: 01/10/2023]
Abstract
The metabolic profile of Lavado cocoa was characterized for the first time by NMR spectroscopy, then compared with the profiles of fermented and processed varieties, Natural and commercial cocoa. The significant difference in the contents of theobromine and flavanols prompted us to examine the cocoa varieties to seek correlations between these metabolite concentrations and the anti-amyloidogenic activity reported for cocoa in the literature. We combined NMR spectroscopy, preparative reversed-phase (RP) chromatography, atomic force microscopy, in vitro biochemical and cell assays, to investigate and compare the anti-amyloidogenic properties of extracts and fractions enriched in different metabolite classes. Lavado variety was the most active and the catechins and theobromine were the chemical components of cocoa hindering Aβ peptide on-pathway aggregation and toxicity in a human neuroblastoma SH-SY5Y cell line.
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Affiliation(s)
- Carlotta Ciaramelli
- BioOrgNMR Lab, Department of Biotechnologies and Biosciences, University of Milano-Bicocca, P.zza della Scienza 2, 20126 Milan, Italy; Milan Center for Neuroscience (NeuroMI), University of Milano-Bicocca, P.zza dell'Ateneo Nuovo 1, 20126 Milano Italy.
| | - Alessandro Palmioli
- BioOrgNMR Lab, Department of Biotechnologies and Biosciences, University of Milano-Bicocca, P.zza della Scienza 2, 20126 Milan, Italy; Milan Center for Neuroscience (NeuroMI), University of Milano-Bicocca, P.zza dell'Ateneo Nuovo 1, 20126 Milano Italy.
| | - Ada De Luigi
- Department of Biochemistry and Molecular Pharmacology, Istituto di Ricerche Farmacologiche "Mario Negri" IRCCS, Via Mario Negri 2, 20156 Milano, Italy.
| | - Laura Colombo
- Department of Biochemistry and Molecular Pharmacology, Istituto di Ricerche Farmacologiche "Mario Negri" IRCCS, Via Mario Negri 2, 20156 Milano, Italy.
| | - Gessica Sala
- School of Medicine and Surgery, University of Milano-Bicocca, Via Cadore 48, 20900 Monza, Italy; Milan Center for Neuroscience (NeuroMI), University of Milano-Bicocca, P.zza dell'Ateneo Nuovo 1, 20126 Milano Italy.
| | - Mario Salmona
- Department of Biochemistry and Molecular Pharmacology, Istituto di Ricerche Farmacologiche "Mario Negri" IRCCS, Via Mario Negri 2, 20156 Milano, Italy.
| | - Cristina Airoldi
- BioOrgNMR Lab, Department of Biotechnologies and Biosciences, University of Milano-Bicocca, P.zza della Scienza 2, 20126 Milan, Italy; Milan Center for Neuroscience (NeuroMI), University of Milano-Bicocca, P.zza dell'Ateneo Nuovo 1, 20126 Milano Italy.
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17
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Perez M, Lopez-Yerena A, Vallverdú-Queralt A. Traceability, authenticity and sustainability of cocoa and chocolate products: a challenge for the chocolate industry. Crit Rev Food Sci Nutr 2020; 62:475-489. [DOI: 10.1080/10408398.2020.1819769] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Maria Perez
- Department of Nutrition, Food Science and Gastronomy XaRTA, Institute of Nutrition and Food Safety (INSA-UB), Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain
- Laboratory of Organic Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain
| | - Anallely Lopez-Yerena
- Department of Nutrition, Food Science and Gastronomy XaRTA, Institute of Nutrition and Food Safety (INSA-UB), Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain
| | - Anna Vallverdú-Queralt
- Department of Nutrition, Food Science and Gastronomy XaRTA, Institute of Nutrition and Food Safety (INSA-UB), Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain
- Consorcio CIBER, M.P. Fisiopatología de la Obesidad y la Nutrición (CIBERObn), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
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18
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Tahir HE, Arslan M, Mahunu GK, Mariod AA, Wen Z, Xiaobo Z, Xiaowei H, Jiyong S, El-Seedi H. Authentication of the geographical origin of Roselle (Hibiscus sabdariffa L) using various spectroscopies: NIR, low-field NMR and fluorescence. Food Control 2020. [DOI: 10.1016/j.foodcont.2020.107231] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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19
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Effect of the growing area on the methylxanthines and flavan-3-ols content in cocoa beans from Ecuador. J Food Compost Anal 2020. [DOI: 10.1016/j.jfca.2020.103448] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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20
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Pirouzian HR, Konar N, Palabiyik I, Oba S, Toker OS. Pre-crystallization process in chocolate: Mechanism, importance and novel aspects. Food Chem 2020; 321:126718. [PMID: 32251925 DOI: 10.1016/j.foodchem.2020.126718] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 03/30/2020] [Accepted: 03/30/2020] [Indexed: 10/24/2022]
Abstract
Pre-crystallization is an important step in the production of chocolate, which is defined as tempering of cocoa butter through primary and secondary nucleation. The goal of tempering is to obtain a sufficient amount of βV polymorph of the right size. The pre-crystallization process has a great impact on the quality and production cost of final product. Development of chocolate technology requires the use of the most appropriate techniques and ingredients without negatively affecting the quality characteristics. Applications of novel technologies within the confectionery industry have allowed production of chocolate in sufficient quantities to meet the public needs. In order to provide and investigate the potential and usage of novel technologies, the present review focused on different pre-crystallization methods and factors affecting the processing conditions. Seeding and ultrasound-assisted pre-crystallization can be used as alternatives to conventional tempering process. However, in both methods, optimization of experimental conditions is required.
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Affiliation(s)
- Haniyeh Rasouli Pirouzian
- Department of Food Science and Technology, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Nevzat Konar
- Department of Food Engineering, Faculty of Agriculture, Eskisehir Osmangazi University, 26160 Eskisehir, Turkey
| | - Ibrahim Palabiyik
- Namik Kemal University, Agricultural Faculty, Food Engineering Department, 59030 Tekirdağ, Turkey
| | - Sirin Oba
- Amasya University, Suluova Vocational School, Department of Food Processing, Amasya, Turkey
| | - Omer Said Toker
- Yildiz Technical University, Chemical and Metallurgical Engineering Faculty, Department of Food Engineering, Istanbul, Turkey
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21
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Marseglia A, Musci M, Rinaldi M, Palla G, Caligiani A. Volatile fingerprint of unroasted and roasted cocoa beans (Theobroma cacao L.) from different geographical origins. Food Res Int 2020; 132:109101. [PMID: 32331661 DOI: 10.1016/j.foodres.2020.109101] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 02/03/2020] [Accepted: 02/13/2020] [Indexed: 10/25/2022]
Abstract
The aroma characterization of 58 unroasted cocoa beans from 22 different geographical origins was performed by head space solid phase micro-extraction (HS-SPME) combined with gas chromatography-mass spectrometry (GC-MS). Sampling is representative of the average world production (America, Africa, and Southeast Asia). Analysis of cocoa beans before and after roasting were performed to follow the aroma modification with the aim to achieve a cocoa volatile fingerprint and a discrimination model based on beans origin. A total of 57 volatiles was identified in unroasted cocoa beans, while 71 volatiles were identified in roasted cocoa beans. The compounds belong to several chemical groups including esters, alcohols, organic acids, aldehydes, ketones and pyrazines. Datasets were submitted to multivariate statistical analysis (Principal Component Analysis, PCA). Results allowed to discriminate unroasted cocoa beans based on their geographical origin: samples coming from African countries were separated from samples of American regions, whereas samples from Southeast Asia lie between the other two continents suggesting that Asian samples have intermediate characteristics between African and South American cocoa beans. PCA, applied on the corresponding roasted samples, showed that although the same roasting treatment has been applied to all the samples, the differences among the unroasted samples were also maintained in the aromatic profile after roasting. The discrimination model based on volatile fingerprint combined with chemometric tools, showed interesting potential for origin authentication of both unroasted and roasted cocoa beans.
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Affiliation(s)
- Angela Marseglia
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy.
| | - Marilena Musci
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy
| | - Massimiliano Rinaldi
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy
| | - Gerardo Palla
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy
| | - Augusta Caligiani
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy
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22
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Bindereif SG, Brauer F, Schubert JM, Schwarzinger S, Gebauer G. Complementary use of 1H NMR and multi-element IRMS in association with chemometrics enables effective origin analysis of cocoa beans (Theobroma cacao L.). Food Chem 2019; 299:125105. [PMID: 31295636 DOI: 10.1016/j.foodchem.2019.125105] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 06/07/2019] [Accepted: 06/30/2019] [Indexed: 01/05/2023]
Abstract
Within the cocoa market (Theobroma cacao L.), quality and prices are often determined by geographical origin, making traceability indispensable. Therefore, to investigate possibilities of tracing by analytical methods, 48 carefully selected cocoa samples from 20 countries have been profiled using a combination of stable isotope-ratio mass spectrometry (IRMS) and proton nuclear magnetic resonance (1H NMR). Chemometric analysis of combined data sets from both, stable isotope data (δ13C, δ15N, δ18O, δ2H, %C, %N, %O, %H) and 1H NMR fingerprints, achieved good separation with increased classification rates compared to classification with data of the isolated methods. IRMS contributed primarily to discrimination between countries, while 1H NMR significantly contributed to separation of varieties, but also the regions within individual countries. This study thus demonstrates that combination of two analytical methods is an effective tool to enhance both, accuracy and precision, in authenticity testing of cocoa.
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Affiliation(s)
- Stefan G Bindereif
- BayCEER - Laboratory of Isotope Biogeochemistry, University of Bayreuth, Universitätsstrasse 30, 95447 Bayreuth, Germany.
| | - Felix Brauer
- NBNC - North Bavarian NMR Centre and BIOmac - Research Center for Biomacromolecules, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany; ALNuMed GmbH, Gottlieb-Keim-Straße 60, 95448 Bayreuth, Germany
| | - Jan-Marcel Schubert
- NBNC - North Bavarian NMR Centre and BIOmac - Research Center for Biomacromolecules, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany; Original Beans, Keizersgracht 452, 1016 GD Amsterdam, The Netherlands
| | - Stephan Schwarzinger
- NBNC - North Bavarian NMR Centre and BIOmac - Research Center for Biomacromolecules, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany.
| | - Gerhard Gebauer
- BayCEER - Laboratory of Isotope Biogeochemistry, University of Bayreuth, Universitätsstrasse 30, 95447 Bayreuth, Germany.
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23
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Mandrile L, Barbosa-Pereira L, Sorensen KM, Giovannozzi AM, Zeppa G, Engelsen SB, Rossi AM. Authentication of cocoa bean shells by near- and mid-infrared spectroscopy and inductively coupled plasma-optical emission spectroscopy. Food Chem 2019; 292:47-57. [DOI: 10.1016/j.foodchem.2019.04.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 04/01/2019] [Accepted: 04/01/2019] [Indexed: 01/03/2023]
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24
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Bottari E, Festa MR, Mazzoni S. Comparison between cocoa and chocolate: characterisation and fatty acid content. Nat Prod Res 2019; 33:2243-2252. [DOI: 10.1080/14786419.2018.1499597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Emilio Bottari
- Dipartimento di Chimica, Universita degli Studi di Roma La Sapienza, Rome, Italy
| | - Maria Rosa Festa
- Dipartimento di Chimica, Universita degli Studi di Roma La Sapienza, Rome, Italy
| | - Simone Mazzoni
- Dipartimento di Chimica, Universita degli Studi di Roma La Sapienza, Rome, Italy
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25
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PTR-QiToF-MS and HSI for the characterization of fermented cocoa beans from different origins. Food Chem 2019; 289:591-602. [PMID: 30955653 DOI: 10.1016/j.foodchem.2019.03.095] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 03/13/2019] [Accepted: 03/19/2019] [Indexed: 01/07/2023]
Abstract
The wide range of geographical cocoa production areas and the increasing consumption trend towards single origin products induced the necessity to verify and certify cocoa beans origin for quality assurance purposes. In this study cocoa beans of various origins were examined by machine olfaction and machine vision techniques. Fifty-nine fermented and dried Forastero cocoa beans from 23 different geographical origins (Africa, Americas, Southeast Asia) were investigated using Proton Transfer Reaction-Quadrupole interface-Time of Flight-Mass Spectrometry and Hyperspectral Imaging to elucidate the geographical information in the beans. The volatile and spectral fingerprints showed the same tendency in clustering samples from Africa separate from those from the Americas. High variability was observed for the Southeast Asian samples, which is most likely related to differences in fermentation. Machine olfaction and machine vision characterization provided a similar degree of separation but are complementary rapid techniques, which may be further developed for use in practical settings.
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26
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Le Gresley A, Peron JMR. A semi-automatic approach to the characterisation of dark chocolate by Nuclear Magnetic Resonance and multivariate analysis. Food Chem 2019; 275:385-389. [DOI: 10.1016/j.foodchem.2018.09.089] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 09/06/2018] [Accepted: 09/14/2018] [Indexed: 01/30/2023]
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27
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Sirbu D, Grimbs A, Corno M, Ullrich MS, Kuhnert N. Variation of triacylglycerol profiles in unfermented and dried fermented cocoa beans of different origins. Food Res Int 2018; 111:361-370. [DOI: 10.1016/j.foodres.2018.05.025] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 04/25/2018] [Accepted: 05/11/2018] [Indexed: 11/29/2022]
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28
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Freitas DDS, Nunes WDS, do Prado Apparecido R, Lopes TIB, Alcantara GB. NMR-based approach reveals seasonal metabolic changes in mate (Ilex paraguariensis A. St.-Hil.). MAGNETIC RESONANCE IN CHEMISTRY : MRC 2018; 56:311-320. [PMID: 29315783 DOI: 10.1002/mrc.4710] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 12/28/2017] [Accepted: 12/31/2017] [Indexed: 06/07/2023]
Abstract
Ilex paraguariensis (mate) is a species native to South America and is widely consumed in countries such Argentina, Uruguay, Paraguay, and Brazil. Mate consumption is associated with several phytotherapeutic functions, in addition to its cultural and regional importance. However, the harvest period can affect the properties of the mate, due to variations in the constituent proportions, as a consequence of seasonal changes. In this work, we employed nuclear magnetic resonance and chemometrics to evaluate the chemical variations in leaf extracts of I. paraguariensis over the four seasons of the year. We found significant changes in the levels of glucose, myo-inositol, caffeine, theobromine, and fatty acids. These changes can be related to resource allocation for the flowering period, or to responses to environmental stresses, such as temperature.
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Affiliation(s)
- Deisy Dos Santos Freitas
- Instituto de Química, Universidade Federal de Mato Grosso do Sul (UFMS), CP 549, CEP, Campo Grande, MS, 79074-460, Brazil
| | - Wilian da Silva Nunes
- Instituto de Química, Universidade Federal de Mato Grosso do Sul (UFMS), CP 549, CEP, Campo Grande, MS, 79074-460, Brazil
| | - Rafael do Prado Apparecido
- Instituto de Química, Universidade Federal de Mato Grosso do Sul (UFMS), CP 549, CEP, Campo Grande, MS, 79074-460, Brazil
| | - Thiago Inácio Barros Lopes
- Instituto de Química, Universidade Federal de Mato Grosso do Sul (UFMS), CP 549, CEP, Campo Grande, MS, 79074-460, Brazil
- Instituto Federal de Educação, Ciência e Tecnologia de Mato Grosso do Sul, CEP, Aquidauana, MS, 79200-460, Brazil
| | - Glaucia Braz Alcantara
- Instituto de Química, Universidade Federal de Mato Grosso do Sul (UFMS), CP 549, CEP, Campo Grande, MS, 79074-460, Brazil
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29
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Maruenda H, Cabrera R, Cañari-Chumpitaz C, Lopez JM, Toubiana D. NMR-based metabolic study of fruits of Physalis peruviana L. grown in eight different Peruvian ecosystems. Food Chem 2018; 262:94-101. [PMID: 29751927 DOI: 10.1016/j.foodchem.2018.04.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 04/12/2018] [Accepted: 04/12/2018] [Indexed: 10/17/2022]
Abstract
The berry of Physalis peruviana L. (Solanaceae) represents an important socio-economical commodity for Latin America. The absence of a clear phenotype renders it difficult to trace its place of origin. In this study, Cape gooseberries from eight different regions within the Peruvian Andes were profiled for their metabolism implementing a NMR platform. Twenty-four compounds could be unequivocally identified and sixteen quantified. One-way ANOVA and post-hoc Tukey test revealed that all of the quantified metabolites changed significantly among regions: Bambamarca I showed the most accumulated significant differences. The coefficient of variation demonstrated high phenotypic plasticity for amino acids, while sugars displayed low phenotypic plasticity. Correlation analysis highlighted the closely coordinated behavior of the amino acid profile. Finally, PLS-DA revealed a clear separation among the regions based on their metabolic profiles, accentuating the discriminatory capacity of NMR in establishing significant phytochemical differences between producing regions of the fruit of P. peruviana L.
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Affiliation(s)
- Helena Maruenda
- Pontificia Universidad Católica del Perú, Departamento de Ciencias - Química, CERMN, Av. Universitaria 1801, Lima 32, Peru.
| | - Rodrigo Cabrera
- Pontificia Universidad Católica del Perú, Departamento de Ciencias - Química, CERMN, Av. Universitaria 1801, Lima 32, Peru
| | - Cristhian Cañari-Chumpitaz
- Pontificia Universidad Católica del Perú, Departamento de Ciencias - Química, CERMN, Av. Universitaria 1801, Lima 32, Peru
| | - Juan M Lopez
- Pontificia Universidad Católica del Perú, Departamento de Ciencias - Química, CERMN, Av. Universitaria 1801, Lima 32, Peru
| | - David Toubiana
- Pontificia Universidad Católica del Perú, Departamento de Ciencias - Química, CERMN, Av. Universitaria 1801, Lima 32, Peru
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30
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Granato D, Putnik P, Kovačević DB, Santos JS, Calado V, Rocha RS, Cruz AGD, Jarvis B, Rodionova OY, Pomerantsev A. Trends in Chemometrics: Food Authentication, Microbiology, and Effects of Processing. Compr Rev Food Sci Food Saf 2018; 17:663-677. [PMID: 33350122 DOI: 10.1111/1541-4337.12341] [Citation(s) in RCA: 246] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 01/25/2018] [Accepted: 01/26/2018] [Indexed: 11/27/2022]
Abstract
In the last decade, the use of multivariate statistical techniques developed for analytical chemistry has been adopted widely in food science and technology. Usually, chemometrics is applied when there is a large and complex dataset, in terms of sample numbers, types, and responses. The results are used for authentication of geographical origin, farming systems, or even to trace adulteration of high value-added commodities. In this article, we provide an extensive practical and pragmatic overview on the use of the main chemometrics tools in food science studies, focusing on the effects of process variables on chemical composition and on the authentication of foods based on chemical markers. Pattern recognition methods, such as principal component analysis and cluster analysis, have been used to associate the level of bioactive components with in vitro functional properties, although supervised multivariate statistical methods have been used for authentication purposes. Overall, chemometrics is a useful aid when extensive, multiple, and complex real-life problems need to be addressed in a multifactorial and holistic context. Undoubtedly, chemometrics should be used by governmental bodies and industries that need to monitor the quality of foods, raw materials, and processes when high-dimensional data are available. We have focused on practical examples and listed the pros and cons of the most used chemometric tools to help the user choose the most appropriate statistical approach for analysis of complex and multivariate data.
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Affiliation(s)
- Daniel Granato
- Dept. of Food Engineering, State Univ. of Ponta Grossa, Av. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, Brazil
| | - Predrag Putnik
- Faculty of Food Technology and Biotechnology, Univ. of Zagreb, Pierottijeva 6, 10000, Zagreb, Croatia
| | - Danijela Bursać Kovačević
- Faculty of Food Technology and Biotechnology, Univ. of Zagreb, Pierottijeva 6, 10000, Zagreb, Croatia
| | - Jânio Sousa Santos
- Dept. of Food Engineering, State Univ. of Ponta Grossa, Av. Carlos Cavalcanti, 4748, 84030-900, Ponta Grossa, Brazil
| | - Verônica Calado
- School of Chemistry, Federal Univ. of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ramon Silva Rocha
- Dept. de Alimentos, Inst. Federal de Educação, Ciência e Tecnologia (IFRJ), 20270-021, Rio de Janeiro, Brazil
| | - Adriano Gomes Da Cruz
- Dept. de Alimentos, Inst. Federal de Educação, Ciência e Tecnologia (IFRJ), 20270-021, Rio de Janeiro, Brazil
| | - Basil Jarvis
- Dept. of Food and Nutrition Sciences, School of Chemistry, Food and Pharmacy, The Univ. of Reading, Whiteknights, Reading, Berkshire RG6 6AP, U.K
| | - Oxana Ye Rodionova
- Semenov Inst. of Chemical Physics RAS, Kosygin str. 4, 119991, Moscow, Russia
| | - Alexey Pomerantsev
- Semenov Inst. of Chemical Physics RAS, Kosygin str. 4, 119991, Moscow, Russia
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31
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Fidelis M, Santos JS, Coelho ALK, Rodionova OY, Pomerantsev A, Granato D. Authentication of juices from antioxidant and chemical perspectives: A feasibility quality control study using chemometrics. Food Control 2017. [DOI: 10.1016/j.foodcont.2016.09.043] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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32
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Discrimination of Cocoa Bean Origin by Chocolate Polyphenol Chromatographic Analysis and Chemometrics. FOOD ANAL METHOD 2016. [DOI: 10.1007/s12161-016-0744-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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33
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Li P, Zeng SL, Duan L, Ma XD, Dou LL, Wang LJ, Li P, Bi ZM, Liu EH. Comparison of Aurantii Fructus Immaturus and Aurantii Fructus based on multiple chromatographic analysis and chemometrics methods. J Chromatogr A 2016; 1469:96-107. [DOI: 10.1016/j.chroma.2016.09.061] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 09/02/2016] [Accepted: 09/25/2016] [Indexed: 10/20/2022]
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