1
|
Wu R, Xie Y, Zhao L, Fu C, He W, Guo D, Xu W, Yi Y, Wang H. Effect mechanism of capsaicin and dihydrocapsaicin in chili on the oxidative stability of myoglobin in duck meat. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:6799-6808. [PMID: 38568724 DOI: 10.1002/jsfa.13508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 01/24/2024] [Accepted: 03/25/2024] [Indexed: 04/17/2024]
Abstract
BACKGROUND Myoglobin (Mb) in duck meat is commonly over-oxidized when heated at high temperatures, which may worsen the color of the meat. Enhancing the oxidative stability of Mb is essential for improving the color of duck meat. Capsaicin and dihydrocapsaicin (CA-DI) in chili exhibit antioxidant properties. This study investigated the effects of CA-DI on the structure and oxidative damage of Mb by fluorescence spectroscopy, differential scanning calorimetry analysis and particle size in duck meat during heat treatment. RESULTS When the ratio of CA-DI to Mb was 10:1 g kg-1 and heat-treated for 36 min, oxymyoglobin significantly increased, and metmyoglobin significantly decreased compared with the control group (P < 0.05). In parallel, the carbonyl content of Mb in the CA-DI group decreased by 43.40 ± 0.10%, the sulfhydryl content increased by 188 ± 0.21%, and the free radical scavenging activity of Mb was significantly enhanced (P < 0.05). Moreover, the addition of CA-DI resulted in a significant decrease in the particle size of the Mb surface (P < 0.05). When the ratio of CA-DI to Mb was 10:1 g kg-1, CA-DI enhanced the thermal stability and significantly increased the thermal denaturation temperature of Mb. The molecular docking results indicated that hydrophobic interactions and hydrogen bonds were involved in the binding of CA-DI to Mb. CONCLUSION CA-DI could combine with Mb and improve the oxidation stability of Mb in duck meat. This suggested that CA-DI could be a potential natural antioxidant that improves the color of meat products. © 2024 Society of Chemical Industry.
Collapse
Affiliation(s)
- Ruifang Wu
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
- Key Laboratory for Deep Processing of Major Grain and Oil, Ministry of Education, Wuhan, China
- Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Wuhan, China
| | - Yuqing Xie
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
- Key Laboratory for Deep Processing of Major Grain and Oil, Ministry of Education, Wuhan, China
- Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Wuhan, China
| | - Lingling Zhao
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
- Key Laboratory for Deep Processing of Major Grain and Oil, Ministry of Education, Wuhan, China
- Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Wuhan, China
| | - Caiqi Fu
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
- Key Laboratory for Deep Processing of Major Grain and Oil, Ministry of Education, Wuhan, China
- Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Wuhan, China
| | - Wenjie He
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
- Key Laboratory for Deep Processing of Major Grain and Oil, Ministry of Education, Wuhan, China
- Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Wuhan, China
| | - Danjun Guo
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
- Key Laboratory for Deep Processing of Major Grain and Oil, Ministry of Education, Wuhan, China
- Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Wuhan, China
| | - Wei Xu
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
- Key Laboratory for Deep Processing of Major Grain and Oil, Ministry of Education, Wuhan, China
- Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Wuhan, China
| | - Yang Yi
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
- Key Laboratory for Deep Processing of Major Grain and Oil, Ministry of Education, Wuhan, China
- Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Wuhan, China
| | - Hongxun Wang
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
- Key Laboratory for Deep Processing of Major Grain and Oil, Ministry of Education, Wuhan, China
- Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Wuhan, China
| |
Collapse
|
2
|
Chien HJ, Zheng YF, Wang WC, Kuo CY, Hsu YM, Lai CC. Determination of adulteration, geographical origins, and species of food by mass spectrometry. MASS SPECTROMETRY REVIEWS 2023; 42:2273-2323. [PMID: 35652168 DOI: 10.1002/mas.21780] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 04/07/2022] [Accepted: 04/12/2022] [Indexed: 06/15/2023]
Abstract
Food adulteration, mislabeling, and fraud, are rising global issues. Therefore, a number of precise and reliable analytical instruments and approaches have been proposed to ensure the authenticity and accurate labeling of food and food products by confirming that the constituents of foodstuffs are of the kind and quality claimed by the seller and manufacturer. Traditional techniques (e.g., genomics-based methods) are still in use; however, emerging approaches like mass spectrometry (MS)-based technologies are being actively developed to supplement or supersede current methods for authentication of a variety of food commodities and products. This review provides a critical assessment of recent advances in food authentication, including MS-based metabolomics, proteomics and other approaches.
Collapse
Affiliation(s)
- Han-Ju Chien
- Institute of Molecular Biology, National Chung Hsing University, Taichung, Taiwan
| | - Yi-Feng Zheng
- Institute of Molecular Biology, National Chung Hsing University, Taichung, Taiwan
| | - Wei-Chen Wang
- Institute of Molecular Biology, National Chung Hsing University, Taichung, Taiwan
| | - Cheng-Yu Kuo
- Institute of Molecular Biology, National Chung Hsing University, Taichung, Taiwan
| | - Yu-Ming Hsu
- Institute of Molecular Biology, National Chung Hsing University, Taichung, Taiwan
| | - Chien-Chen Lai
- Institute of Molecular Biology, National Chung Hsing University, Taichung, Taiwan
- Graduate Institute of Chinese Medical Science, China Medical University, Taichung, Taiwan
- Advanced Plant Biotechnology Center, National Chung Hsing University, Taichung, Taiwan
- Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung, Taiwan
- Rong Hsing Research Center For Translational Medicine, National Chung Hsing University, Taichung, Taiwan
| |
Collapse
|
3
|
Valletta M, Ragucci S, Landi N, Di Maro A, Pedone PV, Russo R, Chambery A. Mass spectrometry-based protein and peptide profiling for food frauds, traceability and authenticity assessment. Food Chem 2021; 365:130456. [PMID: 34243122 DOI: 10.1016/j.foodchem.2021.130456] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 06/22/2021] [Accepted: 06/22/2021] [Indexed: 01/03/2023]
Abstract
The ever-growing use of mass spectrometry (MS) methodologies in food authentication and traceability originates from their unrivalled specificity, accuracy and sensitivity. Such features are crucial for setting up analytical strategies for detecting food frauds and adulterations by monitoring selected components within food matrices. Among MS approaches, protein and peptide profiling has become increasingly consolidated. This review explores the current knowledge on recent MS techniques using protein and peptide biomarkers for assessing food traceability and authenticity, with a specific focus on their use for unmasking potential frauds and adulterations. We provide a survey of the current state-of-the-art instrumentation including the most reliable and sensitive acquisition modes highlighting advantages and limitations. Finally, we summarize the recent applications of MS to protein/peptide analyses in food matrices and examine their potential in ensuring the quality of agro-food products.
Collapse
Affiliation(s)
- Mariangela Valletta
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", 81100 Caserta, Italy
| | - Sara Ragucci
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", 81100 Caserta, Italy
| | - Nicola Landi
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", 81100 Caserta, Italy
| | - Antimo Di Maro
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", 81100 Caserta, Italy
| | - Paolo Vincenzo Pedone
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", 81100 Caserta, Italy
| | - Rosita Russo
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", 81100 Caserta, Italy.
| | - Angela Chambery
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", 81100 Caserta, Italy.
| |
Collapse
|
4
|
|
5
|
Review on proteomics for food authentication. J Proteomics 2016; 147:212-225. [PMID: 27389853 DOI: 10.1016/j.jprot.2016.06.033] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 06/21/2016] [Accepted: 06/28/2016] [Indexed: 12/24/2022]
Abstract
UNLABELLED Consumers have the right to know what is in the food they are eating. Accordingly, European and global food regulations require that the provenance of the food can be guaranteed from farm to fork. Many different instrumental techniques have been proposed for food authentication. Although traditional methods are still being used, new approaches such as genomics, proteomics, and metabolomics are helping to complement existing methodologies for verifying the claims made about certain food products. During the last decade, proteomics (the large-scale analysis of proteins in a particular biological system at a particular time) has been applied to different research areas within food technology. Since proteins can be used as markers for many properties of a food, even indicating processes to which the food has been subjected, they can provide further evidence of the foods labeling claim. This review is a comprehensive and updated overview of the applications, drawbacks, advantages, and challenges of proteomics for food authentication in the assessment of the foods compliance with labeling regulations and policies. SIGNIFICANCE This review paper provides a comprehensive and critical overview of the application of proteomics approaches to determine the authenticity of several food products updating the performances and current limitations of the applied techniques in both laboratory and industrial environments.
Collapse
|
6
|
Joseph P, Nair MN, Suman SP. Application of proteomics to characterize and improve color and oxidative stability of muscle foods. Food Res Int 2015. [DOI: 10.1016/j.foodres.2015.05.041] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
7
|
Watson AD, Gunning Y, Rigby NM, Philo M, Kemsley EK. Meat Authentication via Multiple Reaction Monitoring Mass Spectrometry of Myoglobin Peptides. Anal Chem 2015; 87:10315-22. [DOI: 10.1021/acs.analchem.5b02318] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Andrew D. Watson
- Analytical Sciences Unit, Institute of Food Research, Norwich
Research Park, Norwich NR4 7UA, United Kingdom
| | - Yvonne Gunning
- Analytical Sciences Unit, Institute of Food Research, Norwich
Research Park, Norwich NR4 7UA, United Kingdom
| | - Neil M. Rigby
- Analytical Sciences Unit, Institute of Food Research, Norwich
Research Park, Norwich NR4 7UA, United Kingdom
| | - Mark Philo
- Analytical Sciences Unit, Institute of Food Research, Norwich
Research Park, Norwich NR4 7UA, United Kingdom
| | - E. Kate Kemsley
- Analytical Sciences Unit, Institute of Food Research, Norwich
Research Park, Norwich NR4 7UA, United Kingdom
| |
Collapse
|
8
|
Amino acid sequence of myoglobin from emu (Dromaius novaehollandiae) skeletal muscle. Meat Sci 2010; 86:623-8. [DOI: 10.1016/j.meatsci.2010.04.041] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2009] [Revised: 04/28/2010] [Accepted: 04/30/2010] [Indexed: 11/23/2022]
|
9
|
Montowska M, Pospiech E. Authenticity Determination of Meat and Meat Products on the Protein and DNA Basis. FOOD REVIEWS INTERNATIONAL 2010. [DOI: 10.1080/87559129.2010.518297] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Magdalena Montowska
- a Institute of Meat Technology, Poznań University of Life Sciences , Poznań , Poland
| | - Edward Pospiech
- a Institute of Meat Technology, Poznań University of Life Sciences , Poznań , Poland
- b Institute of Agriculture and Food Biotechnology, Meat and Fat Technology in Poznań , Poznań , Poland
| |
Collapse
|
10
|
Joseph P, Suman S, Li S, Beach C, Claus J. Mass spectrometric characterization and thermostability of turkey myoglobin. Lebensm Wiss Technol 2010. [DOI: 10.1016/j.lwt.2009.08.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
11
|
Joseph P, Suman SP, Li S, Beach CM, Steinke L, Fontaine M. Characterization of bison (Bison bison) myoglobin. Meat Sci 2009; 84:71-8. [PMID: 20374756 DOI: 10.1016/j.meatsci.2009.08.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2009] [Revised: 08/04/2009] [Accepted: 08/10/2009] [Indexed: 10/20/2022]
Abstract
Bison is an alternate meat species gaining increased popularity in North America. Although previous investigations reported that bison meat discolors faster than beef, the molecular basis of this observation has not been investigated. Therefore, the objective of the present study was to determine the redox stability, thermostability, and primary structure of bison myoglobin (Mb), in comparison with beef Mb. Purified bison and beef myoglobins were analyzed for autoxidation, lipid oxidation-induced oxidation, and thermostability. Matrix Assisted Laser Desorption Ionization-Time of Flight Mass Spectrometry was utilized for determining the exact molecular mass of bison Mb, whereas Edman degradation was employed to determine the amino acid sequence. Bison and beef myoglobins behaved similarly in autoxidation, lipid oxidation-induced oxidation, and thermostability. The observed molecular mass of bison and beef myoglobins was 16,949 Da, and the primary structure of bison Mb shared 100% similarity with beef and yak myoglobins. Noticeably, the amino acid sequence of bison Mb was different from other ruminant myoglobins, such as water-buffalo, sheep, goat, and red-deer. The present study is the first to report the primary structure of bison Mb. Same primary structure and similar biochemical attributes of bison and beef myoglobins suggested that the observed rapid discoloration in bison meat could not be attributed to biochemistry of bison Mb.
Collapse
Affiliation(s)
- P Joseph
- Department of Animal and Food Sciences, University of Kentucky, Lexington, KY 40546, USA
| | | | | | | | | | | |
Collapse
|
12
|
Park JD, Park JW. Extraction of Sardine Myoglobin and Its Effect on Gelation Properties of Pacific Whiting Surimi. J Food Sci 2007; 72:C202-7. [DOI: 10.1111/j.1750-3841.2007.00322.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
13
|
Chen H, Eberlin LS, Cooks RG. Neutral fragment mass spectra via ambient thermal dissociation of peptide and protein ions. J Am Chem Soc 2007; 129:5880-6. [PMID: 17432855 DOI: 10.1021/ja067712v] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel method for the fragmentation of peptide and protein ions at atmospheric pressure outside the mass spectrometer is described. Peptide/protein ions generated by electrosonic spray ionization (ESSI) are carried through a heated coiled metal tube where they fragment. Fragment ions of types a, b, and y are observed for peptides such as angiotensin II and bradykinin. In the case of phosphopeptides, informative b and y ions which preserve the labile phosphate groups are observed in the negative ion mode, which is potentially useful in the location of phosphorylation sites in proteins through chemical analysis of phosphopeptides. The thermal dissociation method extends to proteins such as ubiquitin and myoglobin, giving rise to y-type and other fragment ions. The most important feature of this method is that it also allows characterization of the neutral fragments arising from thermal dissociation by use of on-line corona discharge ionization. This neutral re-ionization experiment is much easier to perform outside the mass spectrometer than as conventionally done, in vacuum. It yields increased structural information from the resulting mass spectra in both the positive and the negative ion modes.
Collapse
Affiliation(s)
- Hao Chen
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA
| | | | | |
Collapse
|
14
|
Nerín C, Tovar L, Djenane D, Camo J, Salafranca J, Beltran JA, Roncalés P. Stabilization of beef meat by a new active packaging containing natural antioxidants. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2006; 54:7840-6. [PMID: 17002460 DOI: 10.1021/jf060775c] [Citation(s) in RCA: 127] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
A new antioxidant active packaging material for food has been designed and developed, consisting of a polypropylene film in which some natural antioxidants have been immobilized. The antioxidant properties of the new material have been tested by using both pure myoglobin and fresh beef steaks. Two different cell configurations (glass vial and Petri dish) and four different myoglobin concentrations-according to the common content of this compound in fresh meat and meat derivatives (1080, 1995, 3332, and 4414 microg g(-1), respectively)-have been evaluated in oxidation studies. Furthermore, three different concentrations of natural antioxidants in the film (designated as PR1, PR2, and PR3) were evaluated. Once myoglobin samples and the active films were introduced in the cell, they were exposed to cool white fluorescent light to accelerate oxidation for a period of time ranging from 5 to 30 days. Remaining myoglobin concentration was measured by molecular absorption UV-vis spectrophotometry at 409 nm. Organoleptic properties and color, texture, and physical characteristics of fresh meat packaged with the new active film have also been measured to evaluate the shelf life of the packaged meat. Results showed that, compared to normal polypropylene, the active film containing natural antioxidants efficiently enhanced the stability of both myoglobin and fresh meat against oxidation processes, thus being a promising way to extend the shelf life of fresh meat.
Collapse
Affiliation(s)
- Cristina Nerín
- Department of Analytical Chemistry, Aragon Institute of Engineering Research I3A, CPS-University of Zaragoza, Torres Quevedo Building, C/María de Luna 3, E-50018 Zaragoza, Spain.
| | | | | | | | | | | | | |
Collapse
|
15
|
Lee S, Joo S, Alderton A, Hill D, Faustman C. Oxymyoglobin and Lipid Oxidation in Yellowfin Tuna (Thunnus albacares) Loins. J Food Sci 2003. [DOI: 10.1111/j.1365-2621.2003.tb12310.x] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
16
|
Zhang L, Mei Y, Zhang Y, Li S, Sun X, Zhu L. Regioselective cleavage of myoglobin with copper(II) compounds at neutral pH. Inorg Chem 2003; 42:492-8. [PMID: 12693231 DOI: 10.1021/ic025619b] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Selective hydrolytic cleavage of myoglobin was studied with CuCl2, Cu(ClO4)2, Cu(AC)2, and binuclear Cu(II) complexes of 3,6,9,16,19,22-hexaaza-6,19-bis (2-hydroxyethyl)-tricyclo- [22,2,2,2(11,14)]-triaconta-1,11,13,24,27,29-hexaene (1) and 3,6,9,16,19,22-hexaaza-tricyclo-[22,2,2,2(11,14)]-triaconta- 1,11,13,24,27,29-hexaene (2). The sites of cleavage were precisely determined by LC-ESIMS and further confirmed by an MS/MS method through fragmentation from both the N-terminal and C-terminal. The peptide bonds of Gln91-Ser92 and Ala94-Thr95 were remarkably cleaved by Cu(II) anchored to the side chain of the His93 residue. The data presented in this study show that Cu(II)-mediated cleavage of myoglobin is able to proceed at neutral pH, more selectively than Pd(II)-mediated cleavage, and buffer solution of phosphate and NH4HCO3 accelerates the cleavage reaction.
Collapse
Affiliation(s)
- Lin Zhang
- State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, Nanjing University, Nanjing, 210093, China
| | | | | | | | | | | |
Collapse
|
17
|
Careri M, Bianchi F, Corradini C. Recent advances in the application of mass spectrometry in food-related analysis. J Chromatogr A 2002; 970:3-64. [PMID: 12350102 DOI: 10.1016/s0021-9673(02)00903-2] [Citation(s) in RCA: 149] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A review is presented on recent applications of mass spectrometry (MS)-based techniques for the analysis of compounds of food concern. Substances discussed are naturally occurring compounds in food products such as lipids, oligosaccharides, proteins, vitamins, flavonoids and related substances, phenolic compounds and aroma compounds. Among xenobiotics, applications of MS techniques for the analysis of pesticides, drug residues, toxins, amines and migrants from packaging are overviewed. Advances in the analysis of trace metals of nutritional and toxicological interest by MS with inductively coupled plasma (ICP) source are presented. The main features of mass spectrometry combined with separation instruments are discussed in food-related analysis. Examples of mass spectrometry and tandem MS (MS-MS) are provided. The development and application of matrix-assisted laser desorption ionization (MALDI) and electrospray (ESI) to the analysis of peptides and proteins in food is discussed. This survey will attempt to cover the state-of-the-art up from 1999 to 2001.
Collapse
Affiliation(s)
- M Careri
- Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università degli Studi di Parma, Italy.
| | | | | |
Collapse
|
18
|
Nemeth-Cawley JF, Rouse JC. Identification and sequencing analysis of intact proteins via collision-induced dissociation and quadrupole time-of-flight mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2002; 37:270-282. [PMID: 11921368 DOI: 10.1002/jms.281] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Identifying unknown proteins has become a central focal point for proteomic and biopharmaceutical development laboratories. Our laboratory investigated using quadrupole time-of-flight mass spectrometry (Qq/TOFMS) for the analysis of intact proteins for the purpose of identifying unknowns while limiting the number of sample-handling steps between protein extraction and identification. Eight standard proteins, both unmodified and disulfide-bonded and ranging in mass from 5 to 66 kDa, were analyzed using nanoelectrospray and collision-induced dissociation to generate peptide sequence tags. An MS analysis, followed by MS/MS analyses on two to five individual protein charge states, were obtained to make an identification. Peptide sequence tags were extracted from the MS/MS data and used, in conjunction with molecular mass and source origin, to obtain protein identifications using the web-based search engine ProteinInfo (www.proteometrics.com). All of the proteins were unambiguously identified from the input data, after which, all of the major product ions were identified for structural information. In most cases, N- and/or C-terminal ions, and also stretches of consecutive product ions from the protein interior, were observed. This method was applied to the analysis and identification of an unknown detected via reversed-phase high-performance liquid chromatography.
Collapse
|