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Liu S, Zhang L, Chen J, Li Z, Liu M, Hong P, Zhong S, Li H. Effect of Freeze-Thaw Cycles on the Freshness of Prepackaged Penaeus vannamei. Foods 2024; 13:305. [PMID: 38254607 PMCID: PMC10814677 DOI: 10.3390/foods13020305] [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: 12/15/2023] [Revised: 01/12/2024] [Accepted: 01/16/2024] [Indexed: 01/24/2024] Open
Abstract
The effect of temperature fluctuations on the freshness of shrimp in simulated trays was investigated by setting a freeze-thaw (F-T) cycle of 12 h after freezing at -20 °C and thawing at 1 °C under refrigeration. The results showed that the shrimp's physicochemical properties deteriorated to different extents with the increase in F-T cycles. The total colony count of shrimp was 6.07 lg CFU/g after 21 cycles, and the volatile saline nitrogen content reached 30.36 mg/100 g, which exceeded the edible standard. In addition, the sensory quality and textural properties (hardness, elasticity, chewiness, and adhesion) declined to different degrees with increased F-T cycles. LF-NMR and protein property measurements showed that F-T cycles resulted in reduced water holding capacity and protein denaturation, which were the main factors leading to the deterioration of shrimp quality. Furthermore, flavor changes were analyzed using an electronic nose sensor to establish a freshness model. The W1W, W1S, W2S, and W5S sensors were correlated with the quality changes in shrimp and used as the main sensors for detecting the freshness of Penaeus vannamei. As a result, to better maintain the overall freshness, temperature fluctuations should be minimized in sales and storage, and fewer than 8 F-T cycles should be performed.
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Affiliation(s)
- Shouchun Liu
- College of Food Science and Technology, Guangdong Ocean University; Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety; Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Engineering Technology Research Center of Aquatic Prepared Food Processing and Quality Control; Guangdong Modern Agricultural Science and Technology Innovation Center, Zhanjiang 524088, China; (S.L.); (J.C.); (Z.L.); (M.L.); (P.H.); (H.L.)
- Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang 524004, China;
| | - Luyao Zhang
- Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang 524004, China;
| | - Jing Chen
- College of Food Science and Technology, Guangdong Ocean University; Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety; Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Engineering Technology Research Center of Aquatic Prepared Food Processing and Quality Control; Guangdong Modern Agricultural Science and Technology Innovation Center, Zhanjiang 524088, China; (S.L.); (J.C.); (Z.L.); (M.L.); (P.H.); (H.L.)
| | - Zhuyi Li
- College of Food Science and Technology, Guangdong Ocean University; Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety; Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Engineering Technology Research Center of Aquatic Prepared Food Processing and Quality Control; Guangdong Modern Agricultural Science and Technology Innovation Center, Zhanjiang 524088, China; (S.L.); (J.C.); (Z.L.); (M.L.); (P.H.); (H.L.)
| | - Meijiao Liu
- College of Food Science and Technology, Guangdong Ocean University; Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety; Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Engineering Technology Research Center of Aquatic Prepared Food Processing and Quality Control; Guangdong Modern Agricultural Science and Technology Innovation Center, Zhanjiang 524088, China; (S.L.); (J.C.); (Z.L.); (M.L.); (P.H.); (H.L.)
| | - Pengzhi Hong
- College of Food Science and Technology, Guangdong Ocean University; Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety; Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Engineering Technology Research Center of Aquatic Prepared Food Processing and Quality Control; Guangdong Modern Agricultural Science and Technology Innovation Center, Zhanjiang 524088, China; (S.L.); (J.C.); (Z.L.); (M.L.); (P.H.); (H.L.)
| | - Saiyi Zhong
- College of Food Science and Technology, Guangdong Ocean University; Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety; Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Engineering Technology Research Center of Aquatic Prepared Food Processing and Quality Control; Guangdong Modern Agricultural Science and Technology Innovation Center, Zhanjiang 524088, China; (S.L.); (J.C.); (Z.L.); (M.L.); (P.H.); (H.L.)
| | - Haifeng Li
- College of Food Science and Technology, Guangdong Ocean University; Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety; Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Engineering Technology Research Center of Aquatic Prepared Food Processing and Quality Control; Guangdong Modern Agricultural Science and Technology Innovation Center, Zhanjiang 524088, China; (S.L.); (J.C.); (Z.L.); (M.L.); (P.H.); (H.L.)
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2
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Xie Y, Zhou K, Tan L, Ma Y, Li C, Zhou H, Wang Z, Xu B. Coexisting with Ice Crystals: Cryogenic Preservation of Muscle Food─Mechanisms, Challenges, and Cutting-Edge Strategies. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:19221-19239. [PMID: 37947813 DOI: 10.1021/acs.jafc.3c06155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Cryopreservation, one of the most effective preservation methods, is essential for maintaining the safety and quality of food. However, there is no denying the fact that the quality of muscle food deteriorates as a result of the unavoidable production of ice. Advancements in cryoregulatory materials and techniques have effectively mitigated the adverse impacts of ice, thereby enhancing the standard of freezing preservation. The first part of this overview explains how ice forms, including the theoretical foundations of nucleation, growth, and recrystallization as well as the key influencing factors that affect each process. Subsequently, the impact of ice formation on the eating quality and nutritional value of muscle food is delineated. A systematic explanation of cutting-edge strategies based on nucleation intervention, growth control, and recrystallization inhibition is offered. These methods include antifreeze proteins, ice-nucleating proteins, antifreeze peptides, natural deep eutectic solvents, polysaccharides, amino acids, and their derivatives. Furthermore, advanced physical techniques such as electrostatic fields, magnetic fields, acoustic fields, liquid nitrogen, and supercooling preservation techniques are expounded upon, which effectively hinder the formation of ice crystals during cryopreservation. The paper outlines the difficulties and potential directions in ice inhibition for effective cryopreservation.
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Affiliation(s)
- Yong Xie
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China
| | - Kai Zhou
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China
- Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230601, China
| | - Lijun Tan
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China
| | - Yunhao Ma
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China
| | - Cong Li
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China
- Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230601, China
| | - Hui Zhou
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China
- Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230601, China
| | - Zhaoming Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China
- Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230601, China
| | - Baocai Xu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China
- Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230601, China
- Food Laboratory of Zhongyuan, Luohe 462300, Henan, China
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3
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Ma XY, Shao ZL, Yu XP, Wang ZL. A Droplet Digital PCR-Based Approach for Quantitative Analysis of the Adulteration of Atlantic Salmon with Rainbow Trout. Foods 2023; 12:4309. [PMID: 38231780 DOI: 10.3390/foods12234309] [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: 10/24/2023] [Revised: 11/26/2023] [Accepted: 11/27/2023] [Indexed: 01/19/2024] Open
Abstract
Low-cost fish species are often used to adulterate or substitute for Atlantic salmon products, posing a serious threat to market order and public health. Hence, reliable techniques are urgently needed to detect Atlantic salmon adulteration. In this study, a precise method for identifying and quantifying adulterated Atlantic salmon with rainbow trout based on droplet digital PCR (ddPCR) testing was developed. Species-specific primers and probes were designed targeting the single-copy nuclear gene myoglobin of two salmonids. A quantitative formula for calculating the mass fraction of adulterated Atlantic salmon with rainbow trout was established based on a one-step conversion strategy, in which the DNA copy number ratios were directly transformed to meat mass fractions by introducing a fixed constant (the transfer coefficient). The dynamic range of the established ddPCR method was from 1% to 90%, with a limit of detection (LOD) of 0.2% and a limit of quantification (LOQ) of 0.8% for rainbow trout in Atlantic salmon, respectively. The quantification method demonstrated an acceptable level of repeatability and reproducibility, as the values of the relative standard deviation (RSD) for the tested meat mixtures with the known fractions were all less than 5%. Thermal and freezing treatments, as well as adding food additives within the recommended dosage limits, had no significant effect on the quantification accuracy. The method was successfully applied to detect rainbow trout adulteration in commercial raw and processed Atlantic salmon products. In comparison to real-time quantitative PCR (qPCR) testing, the established ddPCR method exhibited a higher level of stability and accuracy. Overall, the ddPCR-based quantitative method exhibited high levels of accuracy, stability, sensitivity, and practicability, suitable for applications in the routine surveillance and quality assurance of salmon products.
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Affiliation(s)
- Xiao-Yu Ma
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, College of Life Sciences, China Jiliang University, Hangzhou 310018, China
| | - Zhu-Long Shao
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, College of Life Sciences, China Jiliang University, Hangzhou 310018, China
| | - Xiao-Ping Yu
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, College of Life Sciences, China Jiliang University, Hangzhou 310018, China
| | - Zheng-Liang Wang
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, College of Life Sciences, China Jiliang University, Hangzhou 310018, China
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4
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Yang X, Lan W, Sun X. Antibacterial and antioxidant properties of phenolic acid grafted chitosan and its application in food preservation: A review. Food Chem 2023; 428:136788. [PMID: 37467692 DOI: 10.1016/j.foodchem.2023.136788] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 06/25/2023] [Accepted: 07/01/2023] [Indexed: 07/21/2023]
Abstract
Chitosan is a bio-renewable natural polymeric material. The antibacterial and antioxidant activity of chitosan can be enhanced by grafting with phenolic acids to further expand its application in food. Therefore, this paper focuses on reviewing the structure, antimicrobial and antioxidant activities and their mechanisms with phenolic acid-g-CS, evaluating its cytotoxicity, and describing its application in various food preservation. In general, different reaction mechanisms of phenolic acid-g-CS synthesis lead to different product structures. Compared to chitosan, phenolic acid-g-chitosan exhibited enhanced antibacterial and antioxidant activities. The toxicity assessment showed that phenolic acid-g-CS is not cytotoxic. Moreover, phenolic acid-g-CS has been applied to a variety of food products such as fruits, vegetables and meat with good results. Overall, this review provides a certain reference for subsequent researchers to design phenolic acid-g-CS more rationally and for the subsequent development of phenolic acid-g-CS in food preservation.
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Affiliation(s)
- Xin Yang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Weiqing Lan
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China; Shanghai Aquatic Products Processing and Storage Engineering Technology Research Center, Shanghai, China; National Experimental Teaching Demonstration Center for Food Science and Engineering, Shanghai Ocean University, Shanghai, China.
| | - Xiaohong Sun
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China; Shanghai Aquatic Products Processing and Storage Engineering Technology Research Center, Shanghai, China; National Experimental Teaching Demonstration Center for Food Science and Engineering, Shanghai Ocean University, Shanghai, China.
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5
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Pan N, Bai X, Kong B, Liu Q, Chen Q, Sun F, Liu H, Xia X. The dynamic change in the degradation and in vitro digestive properties of porcine myofibrillar protein during freezing storage. Int J Biol Macromol 2023; 234:123682. [PMID: 36796280 DOI: 10.1016/j.ijbiomac.2023.123682] [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: 12/11/2022] [Revised: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 02/17/2023]
Abstract
The myofibrillar protein (MP) degradation and in vitro digestive properties of porcine longissimus during freezing at -8, -18, -25 and - 40 °C for 1, 3, 6, 9 and 12 months were investigated. As the freezing temperature and duration of frozen storage increased, the amino nitrogen and TCA (trichloroacetic acid)-soluble peptides of the samples were significantly increased, while the total sulfhydryl content and band intensity of myosin heavy chain, actin, troponin T, tropomyosin were significantly decreased (P < 0.05). At higher freezing storage temperatures and durations, the particle size of MP samples and the green fluorescent spots detected using a laser particle size analyzer and confocal laser scanning microscopy became large. After 12 months of freezing, the digestibility and the degree of hydrolysis of the trypsin digestion solution of the samples frozen at -8 °C were significantly decreased by 15.02 % and 14.28 %, respectively, when compared to fresh samples, whereas, the mean surface diameter (d3,2) and mean volume diameter (d4,3) were significantly increased by 14.97 % and 21.53 %, respectively. Therefore, frozen storage induced protein degradation and impaired the ability of digestion in the pork proteins. This phenomenon was more evident as the samples were frozen at high temperatures over a long storage period.
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Affiliation(s)
- Nan Pan
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Xue Bai
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Baohua Kong
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Qian Liu
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Qian Chen
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Fangda Sun
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Haotian Liu
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Xiufang Xia
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
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6
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Ultrasound-assisted diffusion of waxy starch cryogel on frozen-stored pork meat. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.114139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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7
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Manzocco L, Alongi M, Cortella G, Anese M. Optimizing radiofrequency assisted cryogenic freezing to improve meat microstructure and quality. J FOOD ENG 2022. [DOI: 10.1016/j.jfoodeng.2022.111184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Influence of the combination of cinnamon essential oil nanoemulsions and epsilon-polylysine on microbial community and quality of pork during refrigerated period and radio frequency cooking. Int J Food Microbiol 2022; 381:109911. [DOI: 10.1016/j.ijfoodmicro.2022.109911] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 08/24/2022] [Accepted: 08/29/2022] [Indexed: 11/23/2022]
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9
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Gurunathan K, Tahseen A, Manyam S. Effect of aerobic and modified atmosphere packaging on quality characteristics of chicken leg meat at refrigerated storage. Poult Sci 2022; 101:102170. [PMID: 36252502 PMCID: PMC9579415 DOI: 10.1016/j.psj.2022.102170] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 08/16/2022] [Accepted: 08/30/2022] [Indexed: 11/16/2022] Open
Abstract
The demand for chicken meat is continuously increasing in the consumer market. Increasing the shelf-life of chicken meat with modern packaging technology in the supply chain is necessary. Hence research was undertaken to study the effect of aerobic packaging (AP) and modified atmosphere packaging (MAP) on the quality and shelf-life of chicken meat. The chicken leg meat (CLM) was stored under refrigerated storage (4 ± 1°C) in aerobic and modified atmosphere packaging (MAP20 = 20%O2 + 30%CO2 + 50%N2, MAP10 = 10%O2 + 40%CO2 + 50%N2, MAP0 = 0%O2 + 20%CO2 + 80%N2) conditions and evaluated for quality attributes. The results have indicated that MAP of chicken leg meat significantly increased the headspace carbon dioxide, Warner-Bratzler shear force value, standard plate count, color, and odor but decreased the TBARS value, headspace oxygen, and nitrogen when compared with AP. The pH, myoglobin forms, meat pigment, heme iron, CIELAB color space (L*, a*, b*), yeast and mold count, appearance, and sliminess were not affected significantly by AP and MAP. It is concluded that under refrigerated storage conditions, MAP extends the shelf-life of chicken leg meat up to 15 d compared to only 6 d for aerobic packaging. Modified atmosphere packaging (MAP) significantly (P < 0.05) increases headspace carbon dioxide, Warner-Bratzler shear force, standard plate count, appearance, color, and odor of chicken leg meat. Aerobic packaging (AP) significantly (P < 0.05) decreases the pH, total meat pigment, and heme iron in chicken leg meat. Low oxygen, high carbon dioxide MAP (0–20%O2 + 20–40%CO2 + 50–80%N2) can increase the shelf-life by 100 to 150% in chicken leg meat under refrigeration storage.
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Affiliation(s)
- Kandeepan Gurunathan
- ICAR-National Research Center on Meat, Chengicherla, Boduppal Post, Hyderabad, Telangana 500076, India.
| | - Aaliya Tahseen
- PVNR Telangana Veterinary University, Rajendranagar, Hyderabad, Telangana 500030, India
| | - Shashikumar Manyam
- PVNR Telangana Veterinary University, Rajendranagar, Hyderabad, Telangana 500030, India
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10
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Zhu M, Li H, Xing Y, Ma C, Peng Z, Jiao L, Kang Z, Zhao S, Ma H. Understanding the influence of fluctuated low-temperature combined with high-humidity thawing on gelling properties of pork myofibrillar proteins. Food Chem 2022; 404:134238. [DOI: 10.1016/j.foodchem.2022.134238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 08/31/2022] [Accepted: 09/11/2022] [Indexed: 10/14/2022]
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11
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Effects of Frozen Storage Temperature on Water-Holding Capacity and Physicochemical Properties of Muscles in Different Parts of Bluefin Tuna. Foods 2022; 11:foods11152315. [PMID: 35954080 PMCID: PMC9368106 DOI: 10.3390/foods11152315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 07/28/2022] [Accepted: 07/29/2022] [Indexed: 12/04/2022] Open
Abstract
The effects of different freezing temperatures on the water-holding capacity and physicochemical properties of bluefin tuna were studied. The naked body, big belly and middle belly parts of bluefin tuna were stored at −18 °C and −55 °C for 180 days. The tuna was evaluated by determining the water-holding capacity, color difference, malondialdehyde (MDA), salt-soluble protein content, free amino acid (FAA), endogenous fluorescent proteins and water distribution and migration. The salt-soluble protein content was measured by the Bradford method. The color difference was measured by a CR-400 color difference meter. The water distribution and migration were analyzed by the low-field nuclear magnetic resonance (LF-NMR). The results showed little quality change during short-term frozen storage, but the frozen storage temperature of −55 °C significantly improved the quality of tuna compared with the frozen storage temperature of −18 °C. There were great differences in the salt-soluble protein content, water-holding capacity and water content the different parts of the tuna. The water-holding capacity and the protein content were the highest, and the water distribution of the naked body part was the most uniform of the three different parts. Because of the high fat content in the big belly and the middle belly, the MDA content and the odor of amino acid increased rapidly and the quality seriously decreased during the frozen storage.
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12
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Ouyang Q, Liu L, Zareef M, Wang L, Chen Q. Application of portable visible and near-infrared spectroscopy for rapid detection of cooking loss rate in pork: Comparing spectra from frozen and thawed pork. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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13
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Bai X, Xu Y, Shen Y, Guo N. Analysis and mathematical modeling of the survival kinetics of Staphylococcus aureus in raw pork under dynamic and static temperature conditions. Food Sci Nutr 2021; 9:6587-6595. [PMID: 34925788 PMCID: PMC8645714 DOI: 10.1002/fsn3.2604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 09/14/2021] [Accepted: 09/16/2021] [Indexed: 11/06/2022] Open
Abstract
The incidence of frequent foodborne disease outbreaks due to Staphylococcus aureus contamination necessitates the urgent searching for effective methods to monitor S. aureus. This research aims to construct model with a dynamic survival curve and some static growth curves to predict the behavior of S. aureus in raw pork. Lack of research about S. aureus kinetics in pork under fluctuating temperature conditions across freezing and thawing necessitates this study. One-step analysis was used to determine the model parameters, which was more efficient than conventional model analysis with two steps. The results of kinetic analysis showed that Tmin (minimum growth temperature) was 6.85°C, which is close to the estimated values in previous reports. Subsequently, validation results indicated the integrated model can accurately predict the behavior of S. aureus regardless of isothermal or nonisothermal conditions with the root-mean-square errors (RMSE < 0.44 log CFU/g, 73.9% of the errors of prediction falls within ±0.5 log CFU/g), accuracy factors Af and bias factors Bf were both close to 1. This work may offer an effective method for the assessment of microbial security related to S. aureus in pork.
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Affiliation(s)
- Xue Bai
- College of Food Science and EngineeringJilin UniversityChangchunChina
| | - Ying Xu
- College of Food Science and EngineeringJilin UniversityChangchunChina
| | - Yong Shen
- College of Food Science and EngineeringJilin UniversityChangchunChina
| | - Na Guo
- College of Food Science and EngineeringJilin UniversityChangchunChina
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14
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Kim H, Chin KB. Physicochemical properties of reduced-salt cured pork loin as affected by different freezing temperature and storage periods. Anim Biosci 2021; 35:494-502. [PMID: 34530509 PMCID: PMC8902222 DOI: 10.5713/ab.21.0320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 08/20/2021] [Indexed: 11/27/2022] Open
Abstract
Objective The objective of this study was to evaluate functional properties of reduced-salt pork meat products made of pre-rigor pork loin treated by different freezing temperatures (−30°C and −70°C) during storage. Methods Pre-rigor cured pork loin with 1.0% added salt was compared to post-rigor muscle added with 1.5% salt for pH, color (L*, a*, b*), cooking loss (CL), expressible moisture, warner-Bratzler shear value, thiobarbituric acid reactive substances (TBARS), and volatile basic nitrogen (VBN). Results Pre-rigor cured pork loins had higher pH and temperature than post-rigor ones as raw meat (p<0.05). pH values were higher for pre-rigor pork loins than those of post-rigor pork loins (p<0.05). Color values did not different among treatments (p>0.05). No color differences were observed during storage period after cooking (p>0.05). The CL (%) of pre-rigor cured pork loins was the lowest when frozen at −70°C. The TBARS and VBN increased from 8 weeks of storage (p<0.05), but no further changed thereafter (p>0.05). Pre-rigor cured pork loins added with 1.0% salt showed similar characteristics to post-rigor pork loins added with 1.5% salt. Conclusion Cured pork loins could be produced using pre-rigor muscle added with 1/3 of the original salt level (1.5%) and could be stored for up to 4 wks of frozen storage, regardless of a frozen temperature of −30°C or −70°C without detrimental effects.
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Affiliation(s)
- Haeun Kim
- Department of Animal Science, Chonnam National University, Gwangju 61186, Korea
| | - Koo Bok Chin
- Department of Animal Science, Chonnam National University, Gwangju 61186, Korea
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15
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Zhang L, Zhang M, Mujumdar AS. Technological innovations or advancement in detecting frozen and thawed meat quality: A review. Crit Rev Food Sci Nutr 2021; 63:1483-1499. [PMID: 34382891 DOI: 10.1080/10408398.2021.1964434] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Frozen storage is one of the main storage methods for meat products. Freezing and thawing processes are important factors affecting the quality of stored foods. Deterioration of texture, denaturation of protein, decline of water holding capacity etc. are among the major quality issues during freezing that must be addressed. A number of advanced technologies are now available to detect the quality changes that can occur during freezing and/or thawing. This paper presents an overview of the techniques commonly used for the detection of meat product quality; these include: advanced microscopy, molecular sensory science and technology, nuclear magnetic resonance, hyperspectral technology, near infrared spectroscopy, Raman spectroscopy etc. These direct and indirect measurement techniques can characterize the quality of meat product from many different angles. The objective of this review is to provide an in-depth understanding of possible quality changes in meat products during freezing and thawing cycle so as to improve the quality of frozen and thawed meat products in industrial practice.
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Affiliation(s)
- Lihui Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu, China
| | - Min Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,Jiangsu Province Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Arun S Mujumdar
- Department of Bioresource Engineering, Macdonald Campus, McGill University, Montreal, Quebec, Canada
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16
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Shelf Life Extension of Chilled Pork by Optimal Ultrasonicated Ceylon Spinach ( Basella alba) Extracts: Physicochemical and Microbial Properties. Foods 2021; 10:foods10061241. [PMID: 34072425 PMCID: PMC8227812 DOI: 10.3390/foods10061241] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 05/25/2021] [Accepted: 05/26/2021] [Indexed: 12/29/2022] Open
Abstract
The effect of ultrasonication on the antioxidant and antibacterial properties of Ceylon spinach (Basella alba) extracts (CE) and the shelf life of chilled pork with CE were studied. The CE were ultrasonicated at different power levels (60–100%) for 10–40 min in an ultrasonic bath with the rise of antioxidant activities (p ≤ 0.05) proportional to the ultrasonication time. The additional investigation of antibacterial activities showed that the ultrasonicated extracts (100 mg/mL) could inhibit and inactivate Staphylococcus aureus and Escherichia coli with the optimal condition of 80% power for 40 min. For shelf life testing, fresh pork treated with the ultrasonicated extracts at 100 and 120 mg/mL had lower values of thiobarbituric acid reactive substances (TBARS) than the control (without dipping). For food safety as measured by the total microbial count, the fresh pork dipped with 100–120 mg/mL CE extract could be kept at 0 °C for 7 days, 2 to 3 days longer than control meat at 0 and 4 °C, respectively. A sensory evaluation using a nine-point hedonic scale showed that fresh pork dipped with 100-mg/mL CE extracts was accepted by consumers. It is suggested that CE extracts can be applied in the food industry to enhance the quality and extend the shelf life of meat products.
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