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Rao W, Wu J, Fang Z, Chen Z, Wu J, Fang X. Antibacterial mechanism of metabolites of Lactobacillus plantarum against Pseudomonas lundensis and their application in dry-aged beef preservation. Food Chem 2024; 460:140463. [PMID: 39047473 DOI: 10.1016/j.foodchem.2024.140463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 06/26/2024] [Accepted: 07/12/2024] [Indexed: 07/27/2024]
Abstract
In this study, the antibacterial mechanism of metabolites of Lactobacillus plantarum SCB2505 (MLp SCB2505) against Pseudomonas lundensis (P. lundensis) SCB2605 was investigated, along with evaluation of their preservative effects on dry-aged beef. The results demonstrated the effective inhibition of MLp SCB2505 on the growth and biofilm synthesis of P. lundensis. The treatment with MLp SCB2505 led to the compromised membrane integrity, as evidenced by reduced intracellular ATP content, increased extracellular AKPase, K+ and protein content, as well as disrupted cell morphology. Further metabolomics analysis revealed that MLp SCB2505 interfered amino acid metabolism, nucleotide metabolism, cofactor and vitamin metabolism, lipid metabolism and respiratory chain in P. lundensis, ultimately leading to the interrupted life activities and even death of the bacteria. Besides, MLp SCB2505 could effectively inhibit the growth of Pseudomonas in dry-aged beef and delay spoilage. These findings propose the potential application of MLp SCB2505 as an antibacterial agent in meat products.
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Affiliation(s)
- Wei Rao
- College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Jinchong Wu
- College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Ziying Fang
- College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Zhaomin Chen
- Weyran Food Biotechnology (Shenzhen) Co., LTD., Shenzhen 518048, China
| | - Jianfeng Wu
- College of Food Science, South China Agricultural University, Guangzhou 510642, China.
| | - Xiang Fang
- College of Food Science, South China Agricultural University, Guangzhou 510642, China.
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2
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Peng X, Li Y, Yu J, Gao Y, Zhao X, Jia N. Assessment of the impact of whey protein hydrolysate on myofibrillar proteins in surimi during repeated freeze-thaw cycles: Quality enhancement and antifreeze potential. Food Chem 2024; 460:140552. [PMID: 39047476 DOI: 10.1016/j.foodchem.2024.140552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 06/14/2024] [Accepted: 07/18/2024] [Indexed: 07/27/2024]
Abstract
The quality of surimi, widely used in processed seafood, is compromised by freeze-thaw cycles, leading to protein denaturation and oxidative degradation. The objective of this study is to explore the effects of adding natural whey peptide hydrolysate (WPH) on the myofibrillar proteins of repeatedly freeze-thawed surimi. Results indicated surimi treated with 15% WPH exhibited only a 128% increase in surface hydrophobicity and a maximum peroxide value of 7.84 μg/kg, significantly lower than the control group. Additionally, salt-soluble protein content, emulsification activity, and stability decreased with the increase in freeze-thaw cycles. With a 15% WPH offering the most significant protective effect, evidenced by reductions of only 25.02%, 42.52% and 37.02% in salt-soluble protein content, emulsification activity, and stability, respectively. These outcomes demonstrate that WPH effectively reduces protein denaturation during repeated freeze-thaw processes. Future research should explore the molecular mechanisms underlying WPH's protective effects and evaluate their applicability in other food systems.
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Affiliation(s)
- Xinyan Peng
- College of Life Science, Yantai University, Yantai, Shandong 264005, China.
| | - Yunying Li
- College of Life Science, Yantai University, Yantai, Shandong 264005, China
| | - Juan Yu
- College of Life Science, Yantai University, Yantai, Shandong 264005, China
| | - Yonglin Gao
- College of Life Science, Yantai University, Yantai, Shandong 264005, China
| | - Xinxin Zhao
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China
| | - Na Jia
- College of Food Science and Technology, Bohai University, Food Safety Key Lab of Liaoning Province, National & Local Joint Engineering Research Center of Storage, Jinzhou, Liaoning 121013, China
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3
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Zhou Y, Yu X, Xiao R, Zou LF, Du QF, Ma F, Chen CG. Contribution to energy conservation and quality improvement of frozen pork via contact/contactless immersion freezing in NaCl solution. Meat Sci 2024; 216:109593. [PMID: 38986236 DOI: 10.1016/j.meatsci.2024.109593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 07/03/2024] [Accepted: 07/04/2024] [Indexed: 07/12/2024]
Abstract
High energy consumption and quality deterioration are major challenges in the meat freezing process. In this study, the energy consumption and qualities of frozen pork were investigated using three freezing methods: nonpackaged pork air freezing (NAF), contactless immersion freezing (PIF) and contact immersion freezing (NIF) with NaCl solution as a refrigerant. The results indicated that NIF could improve the energy conservation and freezing efficiency in >4 freezing treatment-times by increasing the unfrozen water content, decreasing the frozen heat load, shortening the freezing time and reducing evaporation loss. NIF could also increase the a* value of the pork and improve the water-holding capacity by facilitating the conversion of free water to immobilized-water. The two immersion freezing methods could reduce freezing-thawing loss and protein loss by alleviating muscle tissue freezing damage. These results provide a suitable application of immersion freezing with energy conservation, high efficiency and good quality of frozen-pork.
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Affiliation(s)
- Yu Zhou
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, Anhui Province, People's Republic of China
| | - Xia Yu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, Anhui Province, People's Republic of China.
| | - Ran Xiao
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, Anhui Province, People's Republic of China
| | - Li-Fang Zou
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, Anhui Province, People's Republic of China.
| | - Qing-Fei Du
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, Anhui Province, People's Republic of China
| | - Fei Ma
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, Anhui Province, People's Republic of China; Engineering Research Center of Bio-process from Ministry of Education, Hefei University of Technology, Hefei, 230009, Anhui Province, People's Republic of China.
| | - Cong-Gui Chen
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, Anhui Province, People's Republic of China; Engineering Research Center of Bio-process from Ministry of Education, Hefei University of Technology, Hefei, 230009, Anhui Province, People's Republic of China.
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4
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Zhu M, Li H, Zong J, Zhang S, Ma H. Influence of 7-day subfreezing storage on physicochemical, nutritional, and microstructural attributes of porcine longissimus thoracis et lumborum muscle. J Food Sci 2024. [PMID: 39155693 DOI: 10.1111/1750-3841.17215] [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: 03/04/2024] [Revised: 05/24/2024] [Accepted: 06/11/2024] [Indexed: 08/20/2024]
Abstract
The effect of 7-day subfreezing storage on the physicochemical properties, nutritional composition, and microstructure of pork was investigated. After 7 days of chilling at 4°C, the meat exhibited color deterioration and the development of off-flavors. In contrast, the -12°C treatment significantly reduced the deterioration in water-holding capacity and color of samples (p < 0.05) and prevented changes in pH value. Similarly, the treatments at -12 and -18°C effectively preserved the meat's tenderness, thiobarbituric acid-reactive substances, protein solubility, and textural properties, maintaining these qualities close to those of fresh meat (p > 0.05). The nutrient content of samples stored at -12°C was comparable to those stored at -18°C (p > 0.05). Furthermore, subfreezing at -12°C was found to protect muscle integrity, promoting the formation of an elastic gel network and a homogenous muscle fiber structure. Therefore, the study concludes that 7-day subfreezing storage at -12°C can reduce protein denaturation and maintain thequality of pork, a result that is typically achieved under more extreme freezing conditions at -18°C.
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Affiliation(s)
- Mingming Zhu
- School of Food Science, Henan Institute of Science and Technology, Xinxiang, China
- Research and Experimental Base for Traditional Specialty Meat Processing Techniques of the Ministry of Agriculture and Rural Affairs of the People's Republic of China, Xinxiang, China
| | - Huijie Li
- School of Food Science, Henan Institute of Science and Technology, Xinxiang, China
| | - Jiaxing Zong
- School of Food Science, Henan Institute of Science and Technology, Xinxiang, China
| | | | - Hanjun Ma
- School of Food Science, Henan Institute of Science and Technology, Xinxiang, China
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5
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Li Y, Han X, Zhang Y, Wang Y, Wang J, Teng W, Wang W, Cao J. Thawed drip and its membrane-separated components: Role in retarding myofibrillar protein gel deterioration during freezing-thawing cycles. Food Res Int 2024; 188:114461. [PMID: 38823861 DOI: 10.1016/j.foodres.2024.114461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 04/24/2024] [Accepted: 05/01/2024] [Indexed: 06/03/2024]
Abstract
Myofibrillar proteins are crucial for gel formation in processed meat products such as sausages and meat patties. Freeze-thaw cycles can alter protein properties, impacting gel stability and product quality. This study aims to investigate the potential of thawed drip and its membrane-separated components as potential antifreeze agents to retard denaturation, oxidation and gel deterioration of myofibrillar proteins during freezing-thawing cycles of pork patties. The thawed drip and its membrane-separated components of > 10 kDa and < 10 kDa, along with deionized water, were added to minced pork at 10 % mass fraction and subjected to increasing freeze-thaw cycles. Results showed that the addition of thawed drip and its membrane separation components inhibited denaturation and structural changes of myofibrillar proteins, evidenced by reduced surface hydrophobicity and carbonyl content, increased free sulfhydryl groups, protein solubility and α-helix, as compared to the deionized water group. Correspondingly, improved gel properties including water-holding capacity, textural parameters and denser network structure were observed with the addition of thawed drip and its membrane separation components. Denaturation and oxidation of myofibrillar proteins were positively correlated with gel deterioration during freezing-thawing cycles. We here propose a role of thawed drip and its membrane separation components as cryoprotectants against myofibrillar protein gel deterioration during freeze-thawing cycles.
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Affiliation(s)
- Yang Li
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, 100048 Beijing, China; Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, 100048 Beijing, China
| | - Xiaoyu Han
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, 100048 Beijing, China; Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, 100048 Beijing, China
| | - Yuemei Zhang
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, 100048 Beijing, China; Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, 100048 Beijing, China.
| | - Ying Wang
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, 100048 Beijing, China; Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, 100048 Beijing, China
| | - Jinpeng Wang
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, 100048 Beijing, China; Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, 100048 Beijing, China
| | - Wendi Teng
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, 100048 Beijing, China; Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, 100048 Beijing, China
| | - Wei Wang
- Key Laboratory of Meat Processing of Sichuan, College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Jinxuan Cao
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, 100048 Beijing, China; Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, 100048 Beijing, China.
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6
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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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7
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Zhu M, Xing Y, Zhang J, Li H, Kang Z, Ma H, Zhao S, Jiao L. Low-frequency alternating magnetic field thawing of frozen pork meat: Effects of intensity on quality properties and microstructure of meat and structure of myofibrillar proteins. Meat Sci 2023; 204:109241. [PMID: 37321052 DOI: 10.1016/j.meatsci.2023.109241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 05/14/2023] [Accepted: 06/02/2023] [Indexed: 06/17/2023]
Abstract
The purpose of the study was to evaluate the changes in quality properties and microstructure of pork meat as well as structural variation in myofibrillar proteins (MPs) after low-frequency alternating magnetic field thawing (LF-MFT) with different intensities (1-5 mT). LF-MFT at 3-5 mT shortened the thawing time. LF-MFT treatment significantly influenced the quality properties of meat and notably improved the structure of MPs (P < 0.05), compared to atmosphere thawing (AT). Especially, among the thawing treatments, LF-MFT-4 (LF-MFT at 4 mT) had the lowest values of thawing loss and drip loss, and the least changes in the color and myoglobin content. Regarding the results of rheological properties and micrographs, an optimal gel structure and a more compact muscle fiber arrangement formed during LF-MFT-4. Moreover, LF-MFT-4 was beneficial for improving the conformation of MPs. Therefore, LF-MFT-4 reduced the deterioration of porcine quality by protecting MPs structure, indicating a potential use in the meat thawing industry.
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Affiliation(s)
- Mingming Zhu
- School of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, China; Henan Province Engineering Technology Research Center of Animal Products Intensive Processing and Quality Safety Control, Henan Institute of Science and Technology, Xinxiang 453003, China; National Pork Processing Technology Research and Development Professional Center, Xinxiang 453003, China.
| | - Yi Xing
- School of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Juan Zhang
- School of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Huijie Li
- School of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Zhuangli Kang
- School of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Hanjun Ma
- School of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Shengming Zhao
- School of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Lingxia Jiao
- School of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, China
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Ilechukwu I, Das RR, Reimer JD. Review of microplastics in museum specimens: An under-utilized tool to better understand the Plasticene. MARINE POLLUTION BULLETIN 2023; 191:114922. [PMID: 37068343 DOI: 10.1016/j.marpolbul.2023.114922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 03/25/2023] [Accepted: 04/06/2023] [Indexed: 05/13/2023]
Abstract
This study summarises the status of microplastic research in marine and freshwater specimens in natural museum collections around the world. Abundances, distributions, and types of microplastics in the archived collections are discussed. Museum collections can fill knowledge gaps on evolution of microplastic pollution before and during the Plasticene era. The specimens in these studies, ranging from plankton to vertebrates, were collected and archived between 1900 and 2019, and are dominated by specimens from marine ecosystems. All the specimens included in this review were preserved by freezing or in ethanol/formaldehyde except for specimens in one study that were preserved via cryomilling. Microfibers were the most common microplastics in the reviewed studies. We recommend more microplastic studies over a wider taxonomic range of species and across a longer span of years utilizing archival specimen collections around the world in order to establish reference points and develop temporal trends for microplastic pollution of the environment.
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Affiliation(s)
- Ifenna Ilechukwu
- Molecular Invertebrate Systematics and Ecology (MISE) Laboratory, Graduate School of Engineering and Science, University of the Ryukyus, Nishihara, Okinawa 903-0213, Japan; Department of Industrial Chemistry, Madonna University, Elele Campus, Rivers State, Nigeria.
| | - Rocktim Ramen Das
- Molecular Invertebrate Systematics and Ecology (MISE) Laboratory, Graduate School of Engineering and Science, University of the Ryukyus, Nishihara, Okinawa 903-0213, Japan
| | - James Davis Reimer
- Molecular Invertebrate Systematics and Ecology (MISE) Laboratory, Graduate School of Engineering and Science, University of the Ryukyus, Nishihara, Okinawa 903-0213, Japan; Tropical Biosphere Research Center, University of the Ryukyus, Nishihara, Okinawa 903-0213, Japan
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9
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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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10
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Injection of l-arginine or l-lysine alleviates freezing-induced deterioration of porcine Longissimus lumborum muscle. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2022. [DOI: 10.1007/s11694-022-01684-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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11
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Biglia A, Messina C, Comba L, Ricauda Aimonino D, Gay P, Brugiapaglia A. Quick-freezing based on a nitrogen reversed Brayton cryocooler prototype: Effects on the physicochemical characteristics of beef longissimus thoracis muscle. INNOV FOOD SCI EMERG 2022. [DOI: 10.1016/j.ifset.2022.103208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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12
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Integrated Lipidomic and Metabolomics Analysis Revealing the Effects of Frozen Storage Duration on Pork Lipids. Metabolites 2022; 12:metabo12100977. [PMID: 36295879 PMCID: PMC9609991 DOI: 10.3390/metabo12100977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/06/2022] [Accepted: 10/14/2022] [Indexed: 11/06/2022] Open
Abstract
Frozen storage is an important strategy to maintain meat quality for long-term storage and transportation. Lipid oxidation is one of the predominant causes of the deterioration of meat quality during frozen storage. Untargeted lipidomic and targeted metabolomics were employed to comprehensively evaluate the effect of frozen duration on pork lipid profiles and lipid oxidative products including free fatty acids and fatty aldehydes. A total of 688 lipids, 40 fatty acids and 14 aldehydes were successfully screened in a pork sample. We found that ether-linked glycerophospholipids, the predominant type of lipids, gradually decreased during frozen storage. Of these ether-linked glycerophospholipids, ether-linked phosphatidylethanolamine and phosphatidylcholine containing more than one unsaturated bond were greatly influenced by frozen storage, resulting in an increase in free polyunsaturated fatty acids and fatty aldehydes. Among these lipid oxidative products, decanal, cis-11,14-eicosenoic acid and cis-5,8,11,14,17-dicosapentaenoic acid can be considered as potential indicators to calculate the freezing time of unknown frozen pork samples. Moreover, over the three-month frozen storage, the first month was a rapid oxidation stage while the other two months were a slow oxidation stage.
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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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