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Jeong HG, Kim J, Lee S, Jo K, Yong HI, Choi YS, Jung S. Differences in pork myosin solubility and structure with various chloride salts and their property of pork gel. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2023; 65:1065-1080. [PMID: 37969338 PMCID: PMC10640935 DOI: 10.5187/jast.2023.e7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/22/2022] [Accepted: 01/14/2023] [Indexed: 11/17/2023]
Abstract
The solubility and structure of myosin and the properties of pork gel with NaCl, KCl, CaCl2, and MgCl2 were investigated. Myofibrillar proteins (MPs) with phosphate were more solubilized with NaCl than with KCl (p < 0.05). CaCl2 and MgCl2 showed lower MP solubilities than those of NaCl and KCl (p < 0.05). The α-helix content of myosin was lower in KCl, CaCl2, and MgCl2 than in NaCl (p < 0.05). The pH of pork batter decreased in the order of KCl, NaCl, MgCl2, and CaCl2 (p < 0.05). The cooking yield of the pork gel manufactured with monovalent salts was higher than that of the pork gel manufactured with divalent salts (p < 0.05). The pork gel manufactured with KCl and MgCl2 showed lower hardness than that of the pork gel manufactured with NaCl. The solubility and structure of myosin were different with the different chloride salts and those led the different quality properties of pork gel. Therefore, the results of this study can be helpful for understanding the quality properties of low-slat meat products manufactured by replacing sodium chloride with different chloride salts.
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Affiliation(s)
- Hyun Gyung Jeong
- Division of Animal and Dairy Science,
Chungnam National University, Daejeon 34134, Korea
| | - Jake Kim
- Division of Animal and Dairy Science,
Chungnam National University, Daejeon 34134, Korea
- Research Group of Food Processing, Korea
Food Research Institute, Wanju 55365, Korea
| | - Seonmin Lee
- Division of Animal and Dairy Science,
Chungnam National University, Daejeon 34134, Korea
| | - Kyung Jo
- Division of Animal and Dairy Science,
Chungnam National University, Daejeon 34134, Korea
| | - Hae In Yong
- Division of Animal and Dairy Science,
Chungnam National University, Daejeon 34134, Korea
| | - Yun-Sang Choi
- Research Group of Food Processing, Korea
Food Research Institute, Wanju 55365, Korea
| | - Samooel Jung
- Division of Animal and Dairy Science,
Chungnam National University, Daejeon 34134, Korea
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Lee S, Jo K, Jeong SKC, Jeon H, Choi YS, Jung S. Recent strategies for improving the quality of meat products. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2023; 65:895-911. [PMID: 37969348 PMCID: PMC10640940 DOI: 10.5187/jast.2023.e94] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/05/2023] [Accepted: 09/05/2023] [Indexed: 11/17/2023]
Abstract
Processed meat products play a vital role in our daily dietary intake due to their rich protein content and the inherent convenience they offer. However, they often contain synthetic additives and ingredients that may pose health risks when taken excessively. This review explores strategies to improve meat product quality, focusing on three key approaches: substituting synthetic additives, reducing the ingredients potentially harmful when overconsumed like salt and animal fat, and boosting nutritional value. To replace synthetic additives, natural sources like celery and beet powders, as well as atmospheric cold plasma treatment, have been considered. However, for phosphates, the use of organic alternatives is limited due to the low phosphate content in natural substances. Thus, dietary fiber has been used to replicate phosphate functions by enhancing water retention and emulsion stability in meat products. Reducing the excessive salt and animal fat has garnered attention. Plant polysaccharides interact with water, fat, and proteins, improving gel formation and water retention, and enabling the development of low-salt and low-fat products. Replacing saturated fats with vegetable oils is also an option, but it requires techniques like Pickering emulsion or encapsulation to maintain product quality. These strategies aim to reduce or replace synthetic additives and ingredients that can potentially harm health. Dietary fiber offers numerous health benefits, including gut health improvement, calorie reduction, and blood glucose and lipid level regulation. Natural plant extracts not only enhance oxidative stability but also reduce potential carcinogens as antioxidants. Controlling protein and lipid bioavailability is also considered, especially for specific consumer groups like infants, the elderly, and individuals engaged in physical training with dietary management. Future research should explore the full potential of dietary fiber, encompassing synthetic additive substitution, salt and animal fat reduction, and nutritional enhancement. Additionally, optimal sources and dosages of polysaccharides should be determined, considering their distinct properties in interactions with water, proteins, and fats. This holistic approach holds promise for improving meat product quality with minimal processing.
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Affiliation(s)
- Seonmin Lee
- Division of Animal and Dairy Science,
Chungnam National University, Daejeon 34134, Korea
| | - Kyung Jo
- Division of Animal and Dairy Science,
Chungnam National University, Daejeon 34134, Korea
| | - Seul-Ki-Chan Jeong
- Division of Animal and Dairy Science,
Chungnam National University, Daejeon 34134, Korea
| | - Hayeon Jeon
- Division of Animal and Dairy Science,
Chungnam National University, Daejeon 34134, Korea
| | - Yun-Sang Choi
- Research Group of Food Processing, Korea
Food Research Institute, Wanju 55365, Korea
| | - Samooel Jung
- Division of Animal and Dairy Science,
Chungnam National University, Daejeon 34134, Korea
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Kim YJ, Kim TK, Yun HJ, Kim J, Cha JY, Lee JH, Choi YS. Effects of grafted myofibrillar protein as a phosphate replacer in brined pork loin. Meat Sci 2023; 199:109142. [PMID: 36822054 DOI: 10.1016/j.meatsci.2023.109142] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 02/12/2023] [Accepted: 02/14/2023] [Indexed: 02/21/2023]
Abstract
For the development of healthier meat products, the grafted myofibrillar protein was evaluated as an ingredient that can substitute phosphate in brined loin. Individual brine solutions, consisting of salt (negative control, NP), salt + sodium tripolyphosphate (positive control, PC), salt + myofibrillar protein without grafting (MP), salt + myofibrillar protein grafted at high concentration (GMP-H), and salt + myofibrillar protein grafted at low concentration (GMP-L), were added to the pork loin by 40% of their weight. Differential scanning calorimetry demonstrated that MP and GMP-H lowered the thermal energy for the transition of myosin and actin, thereby improving the thermal stability of pork loin and increasing protein solubility. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis analysis showed that thicker protein bands appeared in MP and GMP-H samples while exhibiting increased pH values, moisture content, water holding capacity, and processing yield. Accordingly, the shear force of MP and GMP-H decreased. Lipid oxidation of pork loin was increased in MP, whereas it decreased in GMP-H. Thus, GMP-L is a potential substitute for phosphate since it improves physicochemical properties and prevents the lipid oxidation of pork loin.
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Affiliation(s)
- Yea-Ji Kim
- Research Group of Food Processing, Korea Food Research Institute, Wanju 55365, Republic of Korea
| | - Tae-Kyung Kim
- Research Group of Food Processing, Korea Food Research Institute, Wanju 55365, Republic of Korea
| | - Hyun-Jung Yun
- Research Group of Food Processing, Korea Food Research Institute, Wanju 55365, Republic of Korea
| | - Jake Kim
- Research Group of Food Processing, Korea Food Research Institute, Wanju 55365, Republic of Korea
| | - Ji Yoon Cha
- Research Group of Food Processing, Korea Food Research Institute, Wanju 55365, Republic of Korea
| | - Jae Hoon Lee
- Research Group of Food Processing, Korea Food Research Institute, Wanju 55365, Republic of Korea
| | - Yun-Sang Choi
- Research Group of Food Processing, Korea Food Research Institute, Wanju 55365, Republic of Korea.
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Jeong HG, Jo K, Lee S, Yong HI, Choi YS, Jung S. Characteristics of pork emulsion gel manufactured with hot-boned pork and winter mushroom powder without phosphate. Meat Sci 2023; 197:109070. [PMID: 36508862 DOI: 10.1016/j.meatsci.2022.109070] [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: 09/15/2022] [Revised: 11/30/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022]
Abstract
This study investigated the physicochemical characteristics of pork emulsion gels manufactured from hot-boned (HB) pork and winter mushroom powder in the absence of phosphate. It was found that compared to cold-boned (CB) pork, HB pork had a higher pH and exhibited a higher myofibrillar protein solubility with a lower actomyosin content (P < 0.05). Four types of pork gels were prepared, namely CB pork without phosphate, CB pork with phosphate (CBP), HB pork without phosphate, and HB pork with winter mushroom powder but without phosphate (HBW). The total exuded fluid was comparable for the CBP and HBW gels on all storage days. In addition, the HB and HBW gels had similar springiness and cohesiveness properties to the CBP gel (P > 0.05). These results indicate that the quality of pork gels manufactured in the absence of phosphate can be improved by the use of HB pork and with the incorporation of winter mushroom powder.
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Affiliation(s)
- Hyun Gyung Jeong
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Kyung Jo
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Seonmin Lee
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Hae In Yong
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Yun-Sang Choi
- Research Group of Food Processing, Korea Food Research Institute, Wanju 55365, Republic of Korea
| | - Samooel Jung
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Republic of Korea.
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Jo K, Lee S, Jeong HG, Lee DH, Yoon S, Chung Y, Jung S. Utilization of Electrical Conductivity to Improve Prediction Accuracy of Cooking Loss of Pork Loin. Food Sci Anim Resour 2023; 43:113-123. [PMID: 36789198 PMCID: PMC9890360 DOI: 10.5851/kosfa.2022.e64] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/29/2022] [Accepted: 11/08/2022] [Indexed: 11/27/2022] Open
Abstract
This study investigated the predictability of cooking loss of pork loin through relatively easy and quick measurable quality properties. The pH, color, moisture, protein content, and cooking loss of 100 pork loins were measured. The explanatory variables included in all linear regression models with an adjust-r2 value of ≥0.5 were pH and the protein content. In the linear regression model predicting cooking loss, the highest adjust-r2 value was 0.7, with pH, CIE L*, CIE b*, moisture, and protein content as the explanatory variables. In 30 pork loins, electrical conductivity was additionally measured, and as a result of linear regression analysis for predicting cooking loss, the highest adjust-r2 value was 0.646 with electrical conductivity measured at 40 Hz, with pH and color as the explanatory variables. Ordinal logistic regression analysis was performed to predict the three grades (low, middle, and high) of loin cooking loss using pH, color, and 40 Hz electrical conductivity as the explanatory variables, and the percent concordance was 93.8%. In conclusion, the addition of electrical conductivity as an explanatory variable did not increase the prediction accuracy of the linear regression model for predicting cooking loss; however, it was demonstrated that it is possible to predict and classify the cooking loss grade of pork loin through quality properties that can be measured quickly and easily.
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Affiliation(s)
- Kyung Jo
- Division of Animal and Dairy Science,
Chungnam National University, Daejeon 34134, Korea
| | - Seonmin Lee
- Division of Animal and Dairy Science,
Chungnam National University, Daejeon 34134, Korea
| | - Hyun Gyung Jeong
- Division of Animal and Dairy Science,
Chungnam National University, Daejeon 34134, Korea
| | - Dae-Hyun Lee
- Department of Biosystems Machinery
Engineering, Chungnam National University, Daejeon 34134,
Korea
| | - Sangwon Yoon
- Fish Genetics and Breeding Research
Center, National Institute of Fisheries Science, Geoje 53334,
Korea,Department of Bio-AI Convergence, Chungnam
National University, Daejeon 34134, Korea
| | - Yoonji Chung
- Division of Animal and Dairy Science,
Chungnam National University, Daejeon 34134, Korea
| | - Samooel Jung
- Division of Animal and Dairy Science,
Chungnam National University, Daejeon 34134, Korea,Corresponding author: Samooel
Jung, Division of Animal and Dairy Science, Chungnam National University,
Daejeon 34134, Korea, Tel: +82-42-821-5774, Fax: +82-42-825-9754,
E-mail:
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Jung DY, Lee HJ, Shin DJ, Kim CH, Jo C. Mechanism of improving emulsion stability of emulsion-type sausage with oyster mushroom (Pleurotus ostreatus) powder as a phosphate replacement. Meat Sci 2022; 194:108993. [PMID: 36174485 DOI: 10.1016/j.meatsci.2022.108993] [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: 05/26/2022] [Revised: 09/17/2022] [Accepted: 09/18/2022] [Indexed: 11/28/2022]
Abstract
This research evaluated the potentiality of oyster mushroom powder (OMP) as a phosphate alternative by improving emulsion stability of emulsion-type sausage. Sausage without phosphate (NC), with 0.2% sodium triphosphate (PC), and with 1 and 2% OMP (M1 and M2) were prepared. The OMP addition improved the physicochemical properties of sausage, effectively prevented lipid oxidation, and delayed the growth of aerobic bacteria during 28 days of cold storage compared to NC. The M1 and M2 improved the emulsion stability similar to PC. M2 had the highest water holding capacity and apparent viscosity and the lowest cooking loss (P < 0.05). The addition of OMP resulted in different textural characteristics from that of phosphate due to the formation of emulsion structures randomly entrapped by filament-like components, which were derived from polysaccharides or the conjugates between polysaccharides and proteins. According to the results of this study, emulsion stability promoted by OMP was mainly due to the polysaccharides, which are involved in enhancing viscosity and steric hindrance.
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Affiliation(s)
- Doo Yeon Jung
- Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyun Jung Lee
- Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Republic of Korea
| | - Dong-Jin Shin
- Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Republic of Korea; Department of Applied Animal Science, College of Animal Life Science, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Cho Hyun Kim
- Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Republic of Korea
| | - Cheorun Jo
- Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Republic of Korea; Institute of Green Bio Science and Technology, Seoul National University, Pyungchang 25354, Republic of Korea.
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Jo K, Lee S, Jeong HG, Lee DH, Kim HB, Seol KH, Kang S, Jung S. Prediction of cooking loss of pork belly using quality properties of pork loin. Meat Sci 2022; 194:108957. [PMID: 36058092 DOI: 10.1016/j.meatsci.2022.108957] [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: 06/17/2022] [Revised: 08/22/2022] [Accepted: 08/24/2022] [Indexed: 11/28/2022]
Abstract
The predictability of cooking loss in pork belly using the quality properties of pork loin was investigated. Pork belly at the 6th thoracic vertebra and pork loin at the 14th thoracic vertebra from 120 pork carcasses were used in this study. Quality properties, such as pH, proximate composition, color (L*, a*, and b* values), and cooking loss were measured. Linear regression analysis showed that the L*, a*, and b* values of pork loin were significant variables for predicting the cooking loss of pork belly (P < 0.05). However, the adjusted correlation coefficient (R2) of the linear regression was 0.51. Logistic regression analysis for the prediction of cooking loss groups (low, middle, and high) of pork belly, with the L*, a*, and b* values as the independent variables, resulted in 84% concordance. Pork carcasses can be sorted based on the cooking loss groups of pork belly by using the color parameters of pork loin.
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Affiliation(s)
- Kyung Jo
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Seonmin Lee
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Hyung Gyung Jeong
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Dae-Hyun Lee
- Department of Biosystems Machinery Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Hyeun Bum Kim
- Department of Animal Resources Science, Dankook University, Cheonan 16890, Republic of Korea
| | - Kuk-Hwan Seol
- National Institute of Animal Science, Rural Development Administration, Wanju 55365, Republic of Korea
| | - Sunmoon Kang
- National Institute of Animal Science, Rural Development Administration, Wanju 55365, Republic of Korea
| | - Samooel Jung
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Republic of Korea.
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Lee S, Jo K, Jeong HG, Choi YS, Kyoung H, Jung S. Freezing-induced denaturation of myofibrillar proteins in frozen meat. Crit Rev Food Sci Nutr 2022; 64:1385-1402. [PMID: 36052640 DOI: 10.1080/10408398.2022.2116557] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Freezing is commonly used to extend the shelf life of meat and meat products but may impact the overall quality of those products by inducing structural changes in myofibrillar proteins (MPs) through denaturation, chemical modification, and encouraging protein aggregation. This review covers the effect of freezing on the denaturation of MPs in terms of the effects of ice crystallization on solute concentrations, cold denaturation, and protein oxidation. Freezing-induced denaturation of MPs begins with ice crystallization in extracellular spaces and changes in solute concentrations in the unfrozen water fraction. At typical temperatures for freezing meat (lower than -18 °C), cold denaturation of proteins occurs, accompanied by an alteration in their secondary and tertiary structure. Moreover, the disruption of muscle cells triggers the release of cellular enzymes, accelerating protein degradation and oxidation. To minimize severe deterioration during the freezing and frozen storage of meat, there is a vital need to use an appropriate freezing temperature below the glass transition temperature and to avoid temperature fluctuations during storage to prevent recrystallization. Such an understanding of MP denaturation can be applied to determine the optimum freezing conditions for meat products with highly retained sensory, nutritional, and functional qualities.
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Affiliation(s)
- Seonmin Lee
- Division of Animal and Dairy Science, Chungnam National University, Daejeon, Korea
| | - Kyung Jo
- Division of Animal and Dairy Science, Chungnam National University, Daejeon, Korea
| | - Hyun Gyung Jeong
- Division of Animal and Dairy Science, Chungnam National University, Daejeon, Korea
| | - Yun-Sang Choi
- Research Group of Food Processing, Korea Food Research Institute, Wanju, Korea
| | - Hyunjin Kyoung
- Division of Animal and Dairy Science, Chungnam National University, Daejeon, Korea
| | - Samooel Jung
- Division of Animal and Dairy Science, Chungnam National University, Daejeon, Korea
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