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Rabatseta TP, Fourie P, Nkosi BD, Malebana IMM. Effect of dietary inclusion of Pennisetum purpureum (Napier) grass on growth performance, rumen fermentation and meat quality of feedlot sussex red steers. Trop Anim Health Prod 2024; 56:133. [PMID: 38642221 PMCID: PMC11032278 DOI: 10.1007/s11250-024-03959-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 03/22/2024] [Indexed: 04/22/2024]
Abstract
The aim of this study was to evaluate the growth performance, fermentation indices and meat quality of Sussex steers fed totally mixed rations that composed of graded inclusion levels of Napier grass (NP). Three experimental diets designated as diet 1 (0.0 g kg-1 NP: Control), diet 2 (300 g kg-1 NP grass) and diet 3 (600 g kg-1 NP) were formulated. Twenty-four male steers aged 8 months with an average body weight of 185.0 ± 30 kg were used. In a completely randomized design, the animals were allocated to the diets and fed for 120 days. Dietary NP inclusion reduced (P < 0.05) the animals' average daily gain and increased the feed efficiency. The steers' daily feed intake and final body weight decreased (P < 0.05) with a 600 g kg-1 inclusion level. The fermentation indices were not affected (P > 0.05) by the inclusion. While the inclusion reduced (P < 0.05) warm muscle temperature, it had no effect (P > 0.05) on carcass dressing percentage, warm and cold initial and ultimate pH. However, 600 g kg-1 inclusion level reduced (P > 0.05) warm and cold carcass weights. Meat physical attributes, moisture characteristics and tenderness were not affected (P > 0.05) by dietary treatments, except for the 7-days aged meat thaw loss, which increased at 600 g kg-1 inclusion level. Inclusion of 300 g kg-1 increased meat protein and fat, but dry and organic matter contents decreased with increasing inclusion levels. Dietary inclusion of NP grass up to 300 g kg-1 in steers' diets improved feed intake, carcass traits and yielded meat high in protein and fat.
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Affiliation(s)
- T P Rabatseta
- Agricultural Research Council-Animal Production, Irene Campus, Private Bag X2 - Irene 0062, Pretoria, South Africa
- Central University of Technology, Free State Private Bag X20539, Bloemfontein, 9300, South Africa
| | - P Fourie
- Central University of Technology, Free State Private Bag X20539, Bloemfontein, 9300, South Africa
| | - B D Nkosi
- Agricultural Research Council-Animal Production, Irene Campus, Private Bag X2 - Irene 0062, Pretoria, South Africa
| | - I M M Malebana
- Agricultural Research Council-Animal Production, Irene Campus, Private Bag X2 - Irene 0062, Pretoria, South Africa.
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Wang H, Ding C, Lu J, Bao Y, Han B, Zhang J, Duan S, Song Z, Chen H. Study on the thawing characteristics of beef in ultrasound combined with plasma-activated water. Food Chem X 2024; 21:101104. [PMID: 38229670 PMCID: PMC10790005 DOI: 10.1016/j.fochx.2023.101104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/20/2023] [Accepted: 12/25/2023] [Indexed: 01/18/2024] Open
Abstract
The effects of deionized water thawing (DT), plasma-activated water thawing (PT), ultrasound (150 W, 40 kHz) combined with deionized water thawing (UDT), and ultrasound combined with plasma-activated water thawing (UPT) on the thawing characteristics and the physicochemical properties of the beef were investigated. The results showed that the UPT group had a faster thawing rate (38 % higher compared to the PT group) and good bactericidal ability (75 % higher compared to the UDT group), and had no adverse effect on the color and pH value of the beef. Plasma-activated water (PAW) can maintain the stability of the beef fiber, improve the water holding capacity (WHC), inhibit lipid oxidation, and reduce the loss of soluble substances such as protein. Therefore, UPT thawing is a promising meat thawing technology, which provides practical guidance and methods for the wide application of UPT in the field of meat thawing.
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Affiliation(s)
- Huixin Wang
- College of Science, Inner Mongolia University of Technology, Hohhot 010051, China
| | - Changjiang Ding
- College of Science, Inner Mongolia University of Technology, Hohhot 010051, China
- Electric Power College, Inner Mongolia University of Technology, Hohhot 010051, China
| | - Jingli Lu
- College of Science, Inner Mongolia University of Technology, Hohhot 010051, China
| | - Yuting Bao
- College of Science, Inner Mongolia University of Technology, Hohhot 010051, China
| | - Bingyang Han
- College of Science, Inner Mongolia University of Technology, Hohhot 010051, China
| | - Jie Zhang
- College of Science, Inner Mongolia University of Technology, Hohhot 010051, China
| | - Shanshan Duan
- College of Science, Inner Mongolia University of Technology, Hohhot 010051, China
| | - Zhiqing Song
- College of Science, Inner Mongolia University of Technology, Hohhot 010051, China
- Electric Power College, Inner Mongolia University of Technology, Hohhot 010051, China
| | - Hao Chen
- College of Science, Inner Mongolia University of Technology, Hohhot 010051, China
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Xu Y, Zhang D, Xie F, Li X, Schroyen M, Chen L, Hou C. Changes in water holding capacity of chilled fresh pork in controlled freezing-point storage assisted by different modes of electrostatic field action. Meat Sci 2023; 204:109269. [PMID: 37394351 DOI: 10.1016/j.meatsci.2023.109269] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 06/22/2023] [Accepted: 06/26/2023] [Indexed: 07/04/2023]
Abstract
Electrostatic field-assisted low-temperature preservation is considered a novel technology, which provides an effective means of extending the shelf-life of meat. This study aimed to investigate the effects of different output time modes of a high voltage electrostatic field (HVEF) on the water holding capacity (WHC) of chilled fresh pork during controlled freezing-point storage. Under a direct current HVEF generator, chilled fresh pork samples were treated by the single, interval, or continuous HVEF treatment, with a control check group receiving no HVEF treatment. It was determined that the WHC of the continuous HVEF treatment higher than the control check group. This difference was proven by analyzing the moisture content, storage loss, centrifugal loss, cooking loss, and nuclear magnetic resonance imaging. Furthermore, the mechanism behind HVEF-assisted controlled freezing-point storage reduced the moisture loss was conducted by examining the changes in the hydration characteristics of myofibrillar protein. The study revealed that myofibrillar proteins exhibit high solubility and low surface hydrophobicity under continuous HVEF. Additionally, continuous HVEF has been demonstrated to effectively maintain the higher WHC and lower hardness of myofibrillar protein gel by inhibiting the water molecule migration. The demonstration of these results showcases the effectiveness of electrostatic fields for the future physical preservation of meat.
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Affiliation(s)
- Yuqian Xu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, PR China; Precision Livestock and Nutrition Unit, Gembloux Agro-Bio Tech, University of Liège, Passage de Déportés 2, Gembloux, Belgium.
| | - Dequan Zhang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, PR China
| | - Feifei Xie
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, PR China
| | - Xin Li
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, PR China
| | - Martine Schroyen
- Precision Livestock and Nutrition Unit, Gembloux Agro-Bio Tech, University of Liège, Passage de Déportés 2, Gembloux, Belgium
| | - Li Chen
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, PR China
| | - Chengli Hou
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, PR China.
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Zhao S, Lin H, Li S, Liu C, Meng J, Guan W, Liu B. Modeling of Chilled/Supercooled Pork Storage Quality Based on the Entropy Weight Method. Animals (Basel) 2022; 12:ani12111415. [PMID: 35681879 PMCID: PMC9179921 DOI: 10.3390/ani12111415] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 05/24/2022] [Accepted: 05/24/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary The quality of chilled meat is difficult to predict because many quality indexes need to be considered. The waste of meat resources caused by improper storage has caused huge economic losses in the meat industry. The entropy weight method (EWM) was widely used as an effective method of infusion of multiple attributes into a single index of food quality. In this study, the model based on the entropy weight method was used to predict and comprehensively evaluate the quality changes in chilled pork, and the relative error range between the measured and predicted shelf life was lower than 11%. The modeling based on EWM integrates the information from each quality index and provides accurate quality prediction, which will enable the food industry to enhance accurate judging of the shelf life and safety of meat. Abstract The entropy weight method (EWM) was developed and used to integrate multiple quality indexes of pork to generate a comprehensive measure of quality. The Arrhenius equation and chemical kinetic reaction were used to fit and generate the shelf life prediction model. The pork was stored at the temperatures of 7 °C, 4 °C, 1 °C and −1 °C. Quality indexes, such as drip loss, color, shear force, pH, TAC, TVB-N and TBARS were measured. The results show that low temperatures effectively delay microbial growth and lipid oxidation. The regression coefficients (R2) for the comprehensive scores at each temperature were greater than 0.973 and the activation energy Ea was 9.7354 × 104 kJ mol−1. The predicted shelf life of pork stored at 7 °C, 4 °C, 1 °C and −1 °C was 4.35 d, 6.85 d, 10.88 d and 14.90 d, respectively. In conclusion, EWM is an effective method to predict the shelf life of chilled/supercooled pork.
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Affiliation(s)
- Songsong Zhao
- Tianjin Key Laboratory of Refrigeration Technology, School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, China; (S.L.); (B.L.)
- Correspondence: (S.Z.); (W.G.); Tel.: +86-13820590827 (S.Z.); +86-15122577003 (W.G.)
| | - Hengxun Lin
- Tianjin Key Laboratory of Food Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China; (H.L.); (C.L.); (J.M.)
| | - Shuangqing Li
- Tianjin Key Laboratory of Refrigeration Technology, School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, China; (S.L.); (B.L.)
| | - Chenghao Liu
- Tianjin Key Laboratory of Food Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China; (H.L.); (C.L.); (J.M.)
| | - Junhong Meng
- Tianjin Key Laboratory of Food Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China; (H.L.); (C.L.); (J.M.)
| | - Wenqiang Guan
- Tianjin Key Laboratory of Food Biotechnology, School of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China; (H.L.); (C.L.); (J.M.)
- Correspondence: (S.Z.); (W.G.); Tel.: +86-13820590827 (S.Z.); +86-15122577003 (W.G.)
| | - Bin Liu
- Tianjin Key Laboratory of Refrigeration Technology, School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, China; (S.L.); (B.L.)
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Lin H, Zhao S, Han X, Guan W, Liu B, Chen A, Sun Y, Wang J. Effect of static magnetic field extended supercooling preservation on beef quality. Food Chem 2022; 370:131264. [PMID: 34788949 DOI: 10.1016/j.foodchem.2021.131264] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 09/23/2021] [Accepted: 09/27/2021] [Indexed: 12/23/2022]
Abstract
Supercooling can preserve beef without freezing damage, whereas maintaining the supercooled state is difficult. An innovative method of static magnetic field extended supercooling (SM-ES) was proposed to maintain the non-frozen state of beef. Effect of SM-ES (-4 °C + SMF) compared with refrigerated (4 °C), slow-frozen (-4 °C) and frozen (-18 °C) treatment on beef quality was investigated. Results demonstrated that SM-ES successfully preserved beef at -4 °C without ice nucleation for 14 days. The SEM images revealed that the microstructure of slow-frozen/frozen samples was damaged due to crystallizing, while the ice nucleation was not observed in SM-ES treated beef. Compared with refrigerated, slow-frozen and frozen treatment, the drip loss of SM-ES decreased by 21.9%, 47.8% and 30.9%, respectively. The lipid oxidation degree of beef decreased following SM-ES treatment. SM-ES treatment extended the shelf-life of beef for more than 6 days compared with refrigeration while prevented its crystallizing.
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Affiliation(s)
- Hengxun Lin
- Tianjin Key Laboratory of Food Biotechnology, Tianjin University of Commerce, Tianjin 300134, China
| | - Songsong Zhao
- Tianjin Key Laboratory of Refrigeration Technology, Tianjin University of Commerce, Tianjin 300134, China
| | - Xinyi Han
- Tianjin Key Laboratory of Refrigeration Technology, Tianjin University of Commerce, Tianjin 300134, China
| | - Wenqiang Guan
- Tianjin Key Laboratory of Food Biotechnology, Tianjin University of Commerce, Tianjin 300134, China
| | - Bin Liu
- Tianjin Key Laboratory of Refrigeration Technology, Tianjin University of Commerce, Tianjin 300134, China
| | - Aiqiang Chen
- Tianjin Key Laboratory of Refrigeration Technology, Tianjin University of Commerce, Tianjin 300134, China
| | - Yongsheng Sun
- Qingdao Haier Smart Technology R&D Ltd, Qingdao 266100, China
| | - Jiyun Wang
- Qingdao Haier Smart Technology R&D Ltd, Qingdao 266100, China
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