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Du X, Wang B, Li H, Liu H, Shi S, Feng J, Pan N, Xia X. Research progress on quality deterioration mechanism and control technology of frozen muscle foods. Compr Rev Food Sci Food Saf 2022; 21:4812-4846. [PMID: 36201389 DOI: 10.1111/1541-4337.13040] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 08/21/2022] [Accepted: 08/24/2022] [Indexed: 01/28/2023]
Abstract
Freezing can prolong the shelf life of muscle foods and is widely used in their preservation. However, inevitable quality deterioration can occur during freezing, frozen storage, and thawing. This review explores the eating quality deterioration characteristics (color, water holding capacity, tenderness, and flavor) and mechanisms (irregular ice crystals, oxidation, and hydrolysis of lipids and proteins) of frozen muscle foods. It also summarizes and classifies the novel physical-field-assisted-freezing technologies (high-pressure, ultrasound, and electromagnetic) and bioactive antifreeze (ice nucleation proteins, antifreeze proteins, natural deep eutectic solvents, carbohydrate, polyphenol, phosphate, and protein hydrolysates), regulating the dynamic process from water to ice. Moreover, some novel thermal and nonthermal thawing technologies to resolve the loss of water and nutrients caused by traditional thawing methods were also reviewed. We concluded that the physical damage caused by ice crystals was the primary reason for the deterioration in eating quality, and these novel techniques promoted the eating quality of frozen muscle foods under proper conditions, including appropriate parameters (power, time, and intermittent mode mentioned in ultrasound-assisted techniques; pressure involved in high-pressure-assisted techniques; and field strength involved in electromagnetic-assisted techniques) and the amounts of bioactive antifreeze. To obtain better quality frozen muscle foods, more efficient technologies and substances must be developed. The synergy of novel freezing/thawing technology may be more effective than individual applications. This knowledge may help improve the eating quality of frozen muscle foods.
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Affiliation(s)
- Xin Du
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Bo Wang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Haijing Li
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Haotian Liu
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Shuo Shi
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Jia Feng
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Nan Pan
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Xiufang Xia
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang, China
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2
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Shao F, Ma X, Wei P, Cao J, He Y, Feng A, Dong X, Zhou D, Li C. The effects of polyphenols on fresh quality and the mechanism of partial freezing of tilapia fillets. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:6014-6023. [PMID: 35460082 DOI: 10.1002/jsfa.11954] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 04/16/2022] [Accepted: 04/26/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Fish is one of the most popular foods for consumers because of its abundant nutrition, tenderness and delicious taste. With increasing demand for tilapia fillets, practical preservation is widely used to maintain quality and safety during long-distance transportation and storage. Thus the effects of polyphenols (2 g L-1 ) on color, flavor quality and mechanism of tilapia fillets were studied during 49 days of partial freezing (-4 °C). RESULTS Treatment with carnosic acid (CA), procyanidin (PA), quercetin (QE) and resveratrol (RSV) inhibited water migration, myoglobin oxidation and psychrophilic bacteria stability during partial freezing storage. Aeromonas and Acinetobacter were the dominant bacteria of tilapia fillets during -4 °C storage. The relative abundance of aromatic substances (T70/2) in the polyphenol groups (>20%) was richer than in the control (CON) group (17%). Partial least squares discriminant analysis results showed that the different odors of the control and polyphenol groups were completely separated. Moreover, 35 fatty acids were identified by gas chromatographic analysis. On 49 days, the ratios of unsaturated fatty acids in the PA group (58.64%), QE group (57.70%) and RSV group (57.25%) were higher than in the control group (57.19%), and the PA group was the highest. CONCLUSION Polyphenol treatment effectively maintained freshness and improved the quality of tilapia fillets during partial freezing. The polyphenol treatment comprehensively sustained the color and flavor quality of tilapia fillets found in the proposed mechanism. In particular, PA treatment was considered a potential method for preserving the freshness of fillets. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Fanghui Shao
- Hainan Provincial Engineering Research Centre of Aquatic Resources Efficient Utilization in the South China Sea, School of Food Science and Engineering, Hainan University, Haikou, China
| | - Xiaoye Ma
- Hainan Provincial Engineering Research Centre of Aquatic Resources Efficient Utilization in the South China Sea, School of Food Science and Engineering, Hainan University, Haikou, China
| | - Peiyu Wei
- Hainan Provincial Engineering Research Centre of Aquatic Resources Efficient Utilization in the South China Sea, School of Food Science and Engineering, Hainan University, Haikou, China
| | - Jun Cao
- Hainan Provincial Engineering Research Centre of Aquatic Resources Efficient Utilization in the South China Sea, School of Food Science and Engineering, Hainan University, Haikou, China
| | - Yanfu He
- Hainan Provincial Engineering Research Centre of Aquatic Resources Efficient Utilization in the South China Sea, School of Food Science and Engineering, Hainan University, Haikou, China
| | - Aiguo Feng
- Hainan Provincial Engineering Research Centre of Aquatic Resources Efficient Utilization in the South China Sea, School of Food Science and Engineering, Hainan University, Haikou, China
| | - Xiuping Dong
- Collaborative Innovation Center of Provincial and Ministerial Co-construction for Marine Food Deep Processing, Dalian Polytechnic University, Dalian, China
| | - Dayong Zhou
- Collaborative Innovation Center of Provincial and Ministerial Co-construction for Marine Food Deep Processing, Dalian Polytechnic University, Dalian, China
| | - Chuan Li
- Hainan Provincial Engineering Research Centre of Aquatic Resources Efficient Utilization in the South China Sea, School of Food Science and Engineering, Hainan University, Haikou, China
- Collaborative Innovation Center of Provincial and Ministerial Co-construction for Marine Food Deep Processing, Dalian Polytechnic University, Dalian, China
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Huang J, Hu Z, Gaoshang L, Xiang Y, Chen J, Hu Y. Preservation mechanism of liquid nitrogen freezing on crayfish (
Procambarus clarkia
): Study on the modification effects in biochemical and structural properties. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.17116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jiayin Huang
- Institute of Food Engineering, College of Biosystems Engineering and Food Science Zhejiang University Hangzhou Zhejiang China
- College of Food Science and Engineering Hainan Tropical Ocean University; Marine Food Engineering Technology Research Center of Hainan Province; Collaborative Innovation Center of Marine Food Deep Processing Sanya Hainan China
| | - Zhiheng Hu
- Institute of Food Engineering, College of Biosystems Engineering and Food Science Zhejiang University Hangzhou Zhejiang China
- Hainan Key Laboratory of Herpetological Research, College of Fisheries and Life Science Hainan Tropical Ocean University Sanya Hainan China
| | - Li Gaoshang
- Institute of Food Engineering, College of Biosystems Engineering and Food Science Zhejiang University Hangzhou Zhejiang China
- College of Food Science and Engineering Hainan Tropical Ocean University; Marine Food Engineering Technology Research Center of Hainan Province; Collaborative Innovation Center of Marine Food Deep Processing Sanya Hainan China
| | | | - Jianchu Chen
- Institute of Food Engineering, College of Biosystems Engineering and Food Science Zhejiang University Hangzhou Zhejiang China
| | - Yaqin Hu
- College of Food Science and Engineering Hainan Tropical Ocean University; Marine Food Engineering Technology Research Center of Hainan Province; Collaborative Innovation Center of Marine Food Deep Processing Sanya Hainan China
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Ali S, Ammar Khan M, Rajput N, Naeem M, Zhang W, Li CB, Zhou G. Desmin as molecular chaperone for myofibrillar degradation during freeze-thaw cycles. Food Chem 2022; 386:132691. [PMID: 35339085 DOI: 10.1016/j.foodchem.2022.132691] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 02/09/2022] [Accepted: 03/10/2022] [Indexed: 11/04/2022]
Abstract
This study investigated the relationship of secondary protein structures with textural attributes of chicken breast subjected to 6 freeze (-20 °C) thaw (4 °C for 12 h) cycles. 2DE identified 78 distinct protein spots. Moreover, WB indicated a remarkable increase in the degree of desmin degradation during multiple freeze-thaw (MFT). In addition, the TEM micrographs revealed that MFT remarkably increased the spacing between the muscle fibers, especially from cycles 3 to 5, slightly decreased H-zone, but a remarkable shrinkage of Z-lines, as well as degradation of myofibril structures (Z-line, I-bands, and M-lines). DSC showed shifts in first and second endothermic transition peaks during the 3rd and 5th cycles. Viscoelastic graphs revealed a cycle-dependent decrease in gel-forming ability (G') during MFT. Finally, the MFT chicken breast samples exhibited significantly decreased shear force in a cycle-dependent manner. This study highlighted the critical role of desmin in regulating myofibrillar degradation through various routes and mechanisms.
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Affiliation(s)
- Sher Ali
- Key Laboratory of Meat Processing and Quality Control, Synergetic Innovation Centre of Food Safety and Nutrition, College of Food Science and Technology, Nanjing Agricultural University, China; Department of Meat Science &Technology, Faculty of Animal Production and Technology, University of Veterinary and Animal Sciences, Lahore, Pakistan.
| | - Muhammad Ammar Khan
- Department of Food Science & Technology, Faculty of Agriculture & Environment, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Nasir Rajput
- Faculty of Animal Husbandry & Veterinary Sciences, Sindh Agriculture University Tandojam, Sindh, Pakistan
| | - Muhammad Naeem
- Faculty of Animal Husbandry & Veterinary Sciences, Sindh Agriculture University Tandojam, Sindh, Pakistan
| | - Wangang Zhang
- Key Laboratory of Meat Processing and Quality Control, Synergetic Innovation Centre of Food Safety and Nutrition, College of Food Science and Technology, Nanjing Agricultural University, China
| | - Chun-Bao Li
- Key Laboratory of Meat Processing and Quality Control, Synergetic Innovation Centre of Food Safety and Nutrition, College of Food Science and Technology, Nanjing Agricultural University, China
| | - Guanghong Zhou
- Key Laboratory of Meat Processing and Quality Control, Synergetic Innovation Centre of Food Safety and Nutrition, College of Food Science and Technology, Nanjing Agricultural University, China
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5
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Yuduan D, Gao P, Jiang Q, Xia W, Yang F. Effect of immersion freezing with the edible medium on protein structure, chemical bonding and particle size in grass carp (
Ctenopharyngodon idellus
) during frozen storage. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.15957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Diao Yuduan
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology Jiangnan University Wuxi Jiangsu 214122 China
| | - Pei Gao
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology Jiangnan University Wuxi Jiangsu 214122 China
| | - Qixing Jiang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology Jiangnan University Wuxi Jiangsu 214122 China
| | - Wenshui Xia
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology Jiangnan University Wuxi Jiangsu 214122 China
| | - Fang Yang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology Jiangnan University Wuxi Jiangsu 214122 China
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6
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Zheng J, Qu J, Peng H, Chen W, Hu A. Application of ultrasound-assisted cryoprotectant impregnation for improving the storage quality of snakehead fish fillets. FOOD SCI TECHNOL INT 2022:10820132221111973. [PMID: 35790392 DOI: 10.1177/10820132221111973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In aquatic products companies, saccharides and phosphates are often used to impregnate products to improve their quality. Insignificant impregnation effect is a main problem met in the impregnation process. The effect of ultrasonic-assisted impregnation on the storage quality of snakehead fish fillets at -18°C was studied. For all samples, such parameters as water holding capacity, pH value, salt-soluble protein content, whiteness and cooking loss rate were examined periodically. Furthermore, the changes of moisture distribution and migration in snakehead fish fillets during storage were investigated using low-field nuclear magnetic resonance (NMR) and magnetic resonance imaging (MRI). The results demonstrated that ultrasonic-assisted impregnation showed better anti-freeze and water holding capacity effects than that of cryoprotectant impregnation alone. Therefore, ultrasonic treatment could be used as an effective way to improve the quality of snakehead fish fillets during the frozen process. This study could provide a broad application prospect in aquatic product processing industry.
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Affiliation(s)
- Jie Zheng
- State Key Laboratory of Food Nutrition and Safety, 162785Tianjin University of Science & Technology, Tianjin, PR China.,College of Food Science & Engineering, Tianjin University of Science & Technology, Tianjin, PR China.,Key Laboratory of Marine Resource Chemistry and Food Technology (Tianjin University of Science & Technology), Ministry of Education, Tianjin, PR China.,Tianjin Kuanda Aquatic Food Co. Ltd., Tianjin, PR China
| | - Jiaming Qu
- State Key Laboratory of Food Nutrition and Safety, 162785Tianjin University of Science & Technology, Tianjin, PR China.,College of Food Science & Engineering, Tianjin University of Science & Technology, Tianjin, PR China.,Key Laboratory of Marine Resource Chemistry and Food Technology (Tianjin University of Science & Technology), Ministry of Education, Tianjin, PR China
| | - Haihai Peng
- State Key Laboratory of Food Nutrition and Safety, 162785Tianjin University of Science & Technology, Tianjin, PR China.,College of Food Science & Engineering, Tianjin University of Science & Technology, Tianjin, PR China.,Key Laboratory of Marine Resource Chemistry and Food Technology (Tianjin University of Science & Technology), Ministry of Education, Tianjin, PR China
| | - Wen Chen
- State Key Laboratory of Food Nutrition and Safety, 162785Tianjin University of Science & Technology, Tianjin, PR China.,College of Food Science & Engineering, Tianjin University of Science & Technology, Tianjin, PR China.,Key Laboratory of Marine Resource Chemistry and Food Technology (Tianjin University of Science & Technology), Ministry of Education, Tianjin, PR China
| | - Aijun Hu
- State Key Laboratory of Food Nutrition and Safety, 162785Tianjin University of Science & Technology, Tianjin, PR China.,College of Food Science & Engineering, Tianjin University of Science & Technology, Tianjin, PR China.,Key Laboratory of Marine Resource Chemistry and Food Technology (Tianjin University of Science & Technology), Ministry of Education, Tianjin, PR China
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7
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Wang H, Shi W, Wang X. Establishment of quality evaluation method for frozen tilapia (
Oreochromis niloticus
) fillets stored at different temperatures based on fractal dimension. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hongli Wang
- College of Food Science and Technology Shanghai Ocean University, Shanghai Engineering Research Center of Aquatic Product Processing and Preservation Shanghai China
| | - Wenzheng Shi
- College of Food Science and Technology Shanghai Ocean University, Shanghai Engineering Research Center of Aquatic Product Processing and Preservation Shanghai China
| | - Xichang Wang
- College of Food Science and Technology Shanghai Ocean University, Shanghai Engineering Research Center of Aquatic Product Processing and Preservation Shanghai China
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8
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Jiang Q, Gao P, Liu J, Yu D, Xu Y, Yang F, Wang B, Yu P, Xia W. Endogenous proteases in giant freshwater prawn (
Macrobrachium rosenbergii
): changes and its impacts on texture deterioration during frozen storage. Int J Food Sci Technol 2021. [DOI: 10.1111/ijfs.15197] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Qixing Jiang
- State Key Laboratory of Food Science and Technology School of Food Science and Technology Jiangnan University Wuxi 214122 China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangsu Province Wuxi 214122 China
| | - Pei Gao
- State Key Laboratory of Food Science and Technology School of Food Science and Technology Jiangnan University Wuxi 214122 China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangsu Province Wuxi 214122 China
| | - Jiatong Liu
- State Key Laboratory of Food Science and Technology School of Food Science and Technology Jiangnan University Wuxi 214122 China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangsu Province Wuxi 214122 China
| | - Dawei Yu
- State Key Laboratory of Food Science and Technology School of Food Science and Technology Jiangnan University Wuxi 214122 China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangsu Province Wuxi 214122 China
| | - Yanshun Xu
- State Key Laboratory of Food Science and Technology School of Food Science and Technology Jiangnan University Wuxi 214122 China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangsu Province Wuxi 214122 China
| | - Fang Yang
- State Key Laboratory of Food Science and Technology School of Food Science and Technology Jiangnan University Wuxi 214122 China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangsu Province Wuxi 214122 China
| | - Bin Wang
- State Key Laboratory of Food Science and Technology School of Food Science and Technology Jiangnan University Wuxi 214122 China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangsu Province Wuxi 214122 China
| | - Peipei Yu
- State Key Laboratory of Food Science and Technology School of Food Science and Technology Jiangnan University Wuxi 214122 China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangsu Province Wuxi 214122 China
| | - Wenshui Xia
- State Key Laboratory of Food Science and Technology School of Food Science and Technology Jiangnan University Wuxi 214122 China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangsu Province Wuxi 214122 China
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9
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Jiang Q, Nakazawa N, Hu Y, Wang X, Osako K, Okazaki E. Evolution of tissue microstructure, protein properties, and oxidative stability of salted bigeye tuna (Thunnus obesus) meat during frozen storage. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111848] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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10
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TRUONGHUYNH HT, LI B, ZHU H, GUO Q, LI S. Freezing methods affect the characteristics of large yellow croaker (Pseudosciaena crocea): use of cryogenic freezing for long-term storage. FOOD SCIENCE AND TECHNOLOGY 2020. [DOI: 10.1590/fst.27719] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Affiliation(s)
| | - Baoguo LI
- University of Shanghai for Science and Technology, China
| | - Heng ZHU
- Praxair (China) Investment Company Limited, China
| | - Quanyou GUO
- Chinese Academy of Fishery Sciences East China Sea Fishery Research Institute, China
| | - Song LI
- University of Shanghai for Science and Technology, China
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11
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Liu B, Liu Y, Liu Z, Yu M, Liu H, Qin L, Zhou D, Zhu B. Effects of natural trypsin inhibitor from soybean on texture deterioration of the bay scallop (
Argopecten irradians
) during cold storage and its mechanism. Int J Food Sci Technol 2020. [DOI: 10.1111/ijfs.14676] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bing Liu
- School of Food Science and Technology Dalian Polytechnic University Dalian 116034 China
- National Engineering Research Center of Seafood Dalian 116034 China
| | - Yu‐xin Liu
- School of Food Science and Technology Dalian Polytechnic University Dalian 116034 China
- National Engineering Research Center of Seafood Dalian 116034 China
| | - Zi‐qiang Liu
- School of Food Science and Technology Dalian Polytechnic University Dalian 116034 China
| | - Man‐man Yu
- School of Food Science and Technology Dalian Polytechnic University Dalian 116034 China
| | - Hui‐lin Liu
- School of Food Science and Technology Dalian Polytechnic University Dalian 116034 China
- National Engineering Research Center of Seafood Dalian 116034 China
| | - Lei Qin
- School of Food Science and Technology Dalian Polytechnic University Dalian 116034 China
- National Engineering Research Center of Seafood Dalian 116034 China
| | - Da‐yong Zhou
- School of Food Science and Technology Dalian Polytechnic University Dalian 116034 China
- National Engineering Research Center of Seafood Dalian 116034 China
- National R&D Branch Center for Shellfish Processing Dalian 116034 China
| | - Bei‐wei Zhu
- School of Food Science and Technology Dalian Polytechnic University Dalian 116034 China
- National Engineering Research Center of Seafood Dalian 116034 China
- National R&D Branch Center for Shellfish Processing Dalian 116034 China
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12
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Emerging Techniques for Differentiation of Fresh and Frozen-Thawed Seafoods: Highlighting the Potential of Spectroscopic Techniques. Molecules 2020; 25:molecules25194472. [PMID: 33003382 PMCID: PMC7582365 DOI: 10.3390/molecules25194472] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 09/27/2020] [Indexed: 01/12/2023] Open
Abstract
Fish and other seafood products have a limited shelf life due to favorable conditions for microbial growth and enzymatic alterations. Various preservation and/or processing methods have been developed for shelf-life extension and for maintaining the quality of such highly perishable products. Freezing and frozen storage are among the most commonly applied techniques for this purpose. However, frozen–thawed fish or meat are less preferred by consumers; thus, labeling thawed products as fresh is considered a fraudulent practice. To detect this kind of fraud, several techniques and approaches (e.g., enzymatic, histological) have been commonly employed. While these methods have proven successful, they are not without limitations. In recent years, different emerging methods have been investigated to be used in place of other traditional detection methods of thawed products. In this context, spectroscopic techniques have received considerable attention due to their potential as being rapid and non-destructive analytical tools. This review paper aims to summarize studies that investigated the potential of emerging techniques, particularly those based on spectroscopy in combination with chemometric tools, to detect frozen–thawed muscle foods.
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Strateva M, Penchev G. HISTOLOGICAL, PHYSICOCHEMICAL AND MICROBIOLOGICAL CHANGES IN FRESH AND FROZEN/THAWED FISH. BULGARIAN JOURNAL OF VETERINARY MEDICINE 2020. [DOI: 10.15547/tjs.2020.01.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The production and supply of fish as food is constantly growing worldwide. Various methods are applied to extend its shelf life, one of them being freezing. According to European Union legislation, the state of the food and its treatment must be indicated on the label. If the food had been frozen prior to marketing and then sold thawed, this information must be provided to the consumer by labelling it. Otherwise, this is considered a fraud to the consumer since freezing significantly degrades the quality of fish. Histological, physicochemical and microbiological changes in the muscle tissue of frozen fish occur. Different methods may be applied to distinguish between fresh and frozen and them thawed fish, of which histological examination is a reliable method.
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