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Germond A, Vénien A, Ravel C, Castulovich B, Rouel J, Hutin M, Mezelli S, Lefin S, Mirade PS, Astruc T. The Effects of Postmortem Time on Muscle Trout Biochemical Composition and Structure. Foods 2023; 12:foods12101957. [PMID: 37238775 DOI: 10.3390/foods12101957] [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: 04/07/2023] [Revised: 04/28/2023] [Accepted: 05/04/2023] [Indexed: 05/28/2023] Open
Abstract
Fish industry operators have to process fish that arrive at various postmortem times. Postmortem time constrains processing and impacts product quality, safety, and economic value. The objective identification of biomarkers is desirable to predict the postmortem day of aging and this requires a comprehensive longitudinal characterisation of postmortem aging. We analysed the postmortem aging process in trout over a 15-day window. Quantitative physicochemical measurements (pH, colour, texture, aw, proteolysis, and myofibrillar protein solubility) performed on the same fish over time revealed the levels of protein denaturation, solubility, and pH, among other parameters, change very little when assessed by conventional chemical methods. Histological analyses were performed on thin sections and revealed fibre ruptures after 7 days of storage on ice. Ultrastructures were observed by transmission electronic microscopy (TEM) and revealed that sarcomere disorganisation occurred more often after 7 days of storage. Label-free FTIR micro-spectroscopy combined with a SVM model accurately predicted the postmortem time. Spectra-based PC-DA models also enable the identification of biomarkers corresponding to Day 7 and Day 15 postmortem. This study provides insights on postmortem aging and raises prospects for the rapid assessment of trout's freshness status from label-free imaging.
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Affiliation(s)
- Arno Germond
- UR370, QuaPA, INRAE, 63122 Saint-Genès-Champanelle, France
| | - Annie Vénien
- UR370, QuaPA, INRAE, 63122 Saint-Genès-Champanelle, France
| | | | | | - Jacques Rouel
- UR370, QuaPA, INRAE, 63122 Saint-Genès-Champanelle, France
| | - Morgane Hutin
- UR370, QuaPA, INRAE, 63122 Saint-Genès-Champanelle, France
| | - Sara Mezelli
- UR370, QuaPA, INRAE, 63122 Saint-Genès-Champanelle, France
| | - Sandy Lefin
- UR370, QuaPA, INRAE, 63122 Saint-Genès-Champanelle, France
| | | | - Thierry Astruc
- UR370, QuaPA, INRAE, 63122 Saint-Genès-Champanelle, France
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Dominguez-Hernandez E, Salaseviciene A, Ertbjerg P. Low-temperature long-time cooking of meat: Eating quality and underlying mechanisms. Meat Sci 2018; 143:104-113. [PMID: 29730528 DOI: 10.1016/j.meatsci.2018.04.032] [Citation(s) in RCA: 128] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 04/25/2018] [Accepted: 04/26/2018] [Indexed: 10/17/2022]
Abstract
Heat treatment of meat at temperatures between 50 and 65 °C, for extended periods of time, is known as low-temperature long-time (LTLT) cooking. This cooking method produces meat that has increased tenderness and better appearance than when cooked at higher temperatures. Public concerns regarding this method have focused on the ability to design heat treatments that can reach microbiological safety. The heat treatment induces modification of the meat structure and its constituents, which can explain the desirable eating quality traits obtained. Denaturation, aggregation, and degradation of myofibrillar, sarcoplasmic and connective tissue proteins occur depending on the combination of time and temperature during the heat treatment. The protein changes, especially in relation to collagen denaturation, along with proteolytic activity, have often been regarded to be the main contributors to the increased meat tenderness. The mechanisms involved and the possible contribution of other factors are reviewed and discussed.
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Affiliation(s)
| | | | - Per Ertbjerg
- Department of Food and Nutrition, University of Helsinki, 00014 Helsinki, Finland.
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Soladoye O, Juárez M, Aalhus J, Shand P, Estévez M. Protein Oxidation in Processed Meat: Mechanisms and Potential Implications on Human Health. Compr Rev Food Sci Food Saf 2015; 14:106-122. [DOI: 10.1111/1541-4337.12127] [Citation(s) in RCA: 299] [Impact Index Per Article: 33.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 12/04/2014] [Indexed: 01/07/2023]
Affiliation(s)
- O.P. Soladoye
- Dept. of Food and Bioproduct Science, College of Agriculture and Bioresources; Univ. of Saskatchewan; 51 Campus Drive S7N 5A Saskatoon Canada
- Lacombe Research Centre; Agriculture and Agri-Food Canada; 6000 C and E Trail T4L 1W1 Lacombe Alberta Canada
| | - M.L. Juárez
- Lacombe Research Centre; Agriculture and Agri-Food Canada; 6000 C and E Trail T4L 1W1 Lacombe Alberta Canada
| | - J.L. Aalhus
- Lacombe Research Centre; Agriculture and Agri-Food Canada; 6000 C and E Trail T4L 1W1 Lacombe Alberta Canada
| | - P. Shand
- Dept. of Food and Bioproduct Science, College of Agriculture and Bioresources; Univ. of Saskatchewan; 51 Campus Drive S7N 5A Saskatoon Canada
| | - M. Estévez
- IPROCAR Research Inst; Univ. of Extremadura; 10003 Caceres Spain
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Estévez M. Protein carbonyls in meat systems: A review. Meat Sci 2011; 89:259-79. [DOI: 10.1016/j.meatsci.2011.04.025] [Citation(s) in RCA: 575] [Impact Index Per Article: 44.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2011] [Revised: 04/20/2011] [Accepted: 04/25/2011] [Indexed: 01/15/2023]
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