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Zou H, Deng C, Li J, Lou A, Liu Y, Luo J, Shen Q, Quan W. Quantitative Proteomics Reveals the Relationship between Protein Changes and Volatile Flavor Formation in Hunan Bacon during Low-Temperature Smoking. Foods 2024; 13:1360. [PMID: 38731730 PMCID: PMC11083045 DOI: 10.3390/foods13091360] [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: 04/03/2024] [Revised: 04/23/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
This study aimed to investigate the changes in proteins and volatile flavor compounds that occur in bacon during low-temperature smoking (LTS) and identify potential correlations between these changes. To achieve this, a combination of gas chromatography-mass spectrometry and proteomics was employed. A total of 42 volatile flavor compounds were identified in the bacon samples, and, during LTS, 11 key volatile flavor compounds with variable importance were found at a projection value of >1, including 2',4'-dihydroxyacetophenone, 4-methyl-2H-furan-5-one, Nonanal, etc. In total, 2017 proteins were quantified at different stages of LTS; correlation coefficients and KEGG analyses identified 27 down-regulated flavor-related proteins. Of these, seven were involved in the tricarboxylic acid (TCA) cycle, metabolic pathways, or amino acid metabolism, and they may be associated with the process of flavor formation. Furthermore, correlation coefficient analysis indicated that certain chemical parameters, such as the contents of free amino acids, carbonyl compounds, and TCA cycle components, were closely and positively correlated with the formation of key volatile flavor compounds. Combined with bioinformatic analysis, the results of this study provide insights into the proteins present in bacon at various stages of LTS. This study demonstrates the changes in proteins and the formation of volatile flavor compounds in bacon during LTS, along with their potential correlations, providing a theoretical basis for the development of green processing methods for Hunan bacon.
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Affiliation(s)
- Huiyu Zou
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China; (H.Z.); (C.D.); (J.L.); (A.L.); (Y.L.); (J.L.)
| | - Chuangye Deng
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China; (H.Z.); (C.D.); (J.L.); (A.L.); (Y.L.); (J.L.)
| | - Junnian Li
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China; (H.Z.); (C.D.); (J.L.); (A.L.); (Y.L.); (J.L.)
| | - Aihua Lou
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China; (H.Z.); (C.D.); (J.L.); (A.L.); (Y.L.); (J.L.)
| | - Yan Liu
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China; (H.Z.); (C.D.); (J.L.); (A.L.); (Y.L.); (J.L.)
| | - Jie Luo
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China; (H.Z.); (C.D.); (J.L.); (A.L.); (Y.L.); (J.L.)
| | - Qingwu Shen
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China; (H.Z.); (C.D.); (J.L.); (A.L.); (Y.L.); (J.L.)
| | - Wei Quan
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China; (H.Z.); (C.D.); (J.L.); (A.L.); (Y.L.); (J.L.)
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China
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Cai J, Tao Y, Xing L, Zhang J, Wang Z, Zhu Z, Zhang W. Studying Antifatigue Mechanism of Tyr-Pro-Leu-Pro in Exercise Mice Using Label-Free Proteomics. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:2178-2192. [PMID: 38259150 DOI: 10.1021/acs.jafc.3c07642] [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: 01/24/2024]
Abstract
In our previous study, yeast-derived peptide Tyr-Pro-Leu-Pro (YPLP) was found to prolong treadmill time and relieve muscle fatigue in ICR mice. The present study aimed to further investigate the antifatigue mechanism of YPLP. Three doses of YPLP (10, 25, and 50 mg/kg·d) were given to exercise mice for 4 weeks. Results showed that YPLP reduced the oxidative response via the nuclear factor erythroid-2-related factor 2 (Nrf2) pathway and promoted energy metabolism through the AMP-activated protein kinase (AMPK) pathway. Label-free proteomics results showed that 81 differential abundance proteins (DAPs) were regulated by high-dose YPLP. These DAPs belonged to proteasome, mitochondrial, and muscle proteins. YPLP was mainly involved in proteasome, aminoacyl-tRNA biosynthesis, focal adhesion, and MAPK signal pathways to enhance muscle endurance. Furthermore, real-time quantitative PCR and Western blotting results proved that YPLP upregulated Psmd14 expression and downregulated p38 MAPK expression. Overall, this study revealed the mechanism behind YPLP to alleviate exercise fatigue.
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Affiliation(s)
- Jiaming Cai
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, P.R. China
| | - Ye Tao
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, P.R. China
| | - Lujuan Xing
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, P.R. China
| | - Jian Zhang
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, P.R. China
| | - Zixu Wang
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, P.R. China
| | - Zihan Zhu
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, P.R. China
| | - Wangang Zhang
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, P.R. China
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Pan J, Jin Y, Jin H, Li C, Zhang Y, Liu Y, Jin G, Zhao J, He L, Sheng L. New insights into the function of lipid droplet-related proteins and lipid metabolism of salt-stimulated porcine biceps femoris: label-free quantitative phosphoproteomics, morphometry and bioinformatics. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:7517-7528. [PMID: 37440710 DOI: 10.1002/jsfa.12857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 05/22/2023] [Accepted: 07/14/2023] [Indexed: 07/15/2023]
Abstract
BACKGROUND Lipid droplets (LDs) are important multifunctional organelles responsible for lipid metabolism of postmortem muscle. However, the dynamics in their building blocks (cores and layers) and phosphorylation of lipid droplet-related proteins (LDRPs) regulating meat lipolysis remain unknown at salt-stimulated conditions. RESULTS LDRPs extracted from cured porcine biceps femoris (1% and 3% salt) were subjected to label-free quantitative phosphoproteomic analysis and LDs morphological validation. Results indicated that 3% salt curing significantly decreased triglyceride (TG) content with increase in glycerol and decrease in LDs fluorescence compared to 1% salt curing. Comparative phosphoproteomics showed that there were significant changes in phosphorylation at 386 sites on 174 LDRPs between assayed groups (P < 0.05). These differential proteins were mainly involved in lipid and carbohydrate metabolism. Curing of 3% salt induced more site-specific phosphorylation of perilipin 1 (PLIN1, at Ser81) and adipose triglyceride lipase (ATGL, at Ser399) than 1%, whereas the phosphorylation (at Ser600) of hormone-sensitive lipase (HSL) was up-regulated. Ultrastructure imaging showed that LDs were mostly associated with mitochondria, and the average diameter of LDs decreased from 2.34 μm (1% salt) to 1.73 μm (3% salt). CONCLUSION Phosphoproteomics unraveled salt-stimulated LDRPs phosphorylation of cured porcine meat provoked intensified lipolysis. Curing of 3% salt allowed an enhanced lipolysis than 1% by up-regulating the phosphorylation sites of LDRPs and recruited lipases. The visible splitting of LDs, together with sarcoplasmic disorganization, supported the lipolysis robustness following 3% salt curing. The finding provides optimization ideas for high-quality production of cured meat products. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Jiajing Pan
- School of Food and Health, Beijing Technology and Business University, Beijing, China
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Yongguo Jin
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Haobo Jin
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Chengliang Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Yan Zhang
- School of Food and Health, Beijing Technology and Business University, Beijing, China
| | - Yuanyi Liu
- School of Food and Health, Beijing Technology and Business University, Beijing, China
| | - Guofeng Jin
- School of Food and Health, Beijing Technology and Business University, Beijing, China
| | - Jianying Zhao
- College of Tea and Food Science Technology, Jiangsu Vocational College Agriculture and Forestry, Jurong, China
| | - Lichao He
- School of Food and Health, Beijing Technology and Business University, Beijing, China
| | - Long Sheng
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
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Zhang J, Zhang W, Ma C, Cai J. Evaluation of ultrasound-assisted process as an approach for improving the overall quality of unsmoked bacon. ULTRASONICS SONOCHEMISTRY 2023; 98:106490. [PMID: 37343395 PMCID: PMC10314286 DOI: 10.1016/j.ultsonch.2023.106490] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 06/04/2023] [Accepted: 06/14/2023] [Indexed: 06/23/2023]
Abstract
Our previous study has found that ultrasonic application on raw meat could improve the flavor of unsmoked bacon. For comprehensively evaluating the impacts of ultrasonic pretreatment (0, 250, 500 or 750 W, 20 kHz) on the overall quality of unsmoked bacon during processing, the following indicators were determined including salt and water content, pH, shear force, color, water distribution, texture and myofibril microstructure. Results manifest that ultrasonic pretreatment could significantly improve the salt and water content, pH and redness of unsmoked bacon. The water retention capacity was obviously enhanced by ultrasonic pretreatment proved by increased immobile water and decreased free water. Meanwhile, the shear force, the hardness and the chewiness were notably ameliorated after ultrasonic pretreatment, suggesting a better tenderness verified by the observation results of transmission electron microscope. However, no significant differences were found on the brightness, yellowness, springiness, cohesiveness and resilience of unsmoked bacon after ultrasonic pretreatment. Consequently, ultrasound could be considered as a potential tool for the overall-quality improvement of unsmoked bacon.
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Affiliation(s)
- Jian Zhang
- Key Laboratory of Meat Processing and Quality Control, MOE, Key Laboratory of Meat Processing, MOA, Jiangsu Synergetic Innovation Center of Meat Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Wangang Zhang
- Key Laboratory of Meat Processing and Quality Control, MOE, Key Laboratory of Meat Processing, MOA, Jiangsu Synergetic Innovation Center of Meat Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China.
| | - Chao Ma
- Key Laboratory of Meat Processing and Quality Control, MOE, Key Laboratory of Meat Processing, MOA, Jiangsu Synergetic Innovation Center of Meat Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Jiaming Cai
- Key Laboratory of Meat Processing and Quality Control, MOE, Key Laboratory of Meat Processing, MOA, Jiangsu Synergetic Innovation Center of Meat Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
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Zhang J, Toldrá F, Zhang W, Yin Y, Zhu Z. Study on the effects and mechanisms of ultrasound on the peptide profile and taste of unsmoked bacon using peptidomics and bioinformatics. Food Chem 2023; 414:135764. [PMID: 36842205 DOI: 10.1016/j.foodchem.2023.135764] [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: 11/02/2022] [Revised: 02/07/2023] [Accepted: 02/18/2023] [Indexed: 02/25/2023]
Abstract
The ultrasound-induced impacts on the peptide characteristics and taste of unsmoked bacon have been evaluated through the use of peptidomics and bioinformatics approaches. Furthermore, the effect of such ultrasound-induced changes on the main endogenous proteases responsible for peptide generation was also investigated. In fact, the activity of main endogenous proteases was significantly increased after ultrasonic treatment during the processing of unsmoked bacon, and contributed to an increased number and an enhanced LFQ intensity of peptides. Besides, such increased amount of peptides and LFQ intensity with up to 500 W ultrasonic treatment were beneficial for the taste improvement of the final products as shown by taste prediction analysis. Nevertheless, an excessive ultrasonic power like 750 W hindered protein hydrolysis and further exerted a negative effect on peptide generation. Therefore, ultrasound under controlled conditions could be considered as a promising way to improve the taste of unsmoked bacon.
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Affiliation(s)
- Jian Zhang
- Key Laboratory of Meat Processing and Quality Control, MOE, Key Laboratory of Meat Processing, MOA, Jiangsu Synergetic Innovation Center of Meat Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China; Instituto de Agroquímica y Tecnología de Alimentos (CSIC), Avenue Agustín Escardino 7, 46980 Paterna, Valencia, Spain
| | - Fidel Toldrá
- Instituto de Agroquímica y Tecnología de Alimentos (CSIC), Avenue Agustín Escardino 7, 46980 Paterna, Valencia, Spain
| | - Wangang Zhang
- Key Laboratory of Meat Processing and Quality Control, MOE, Key Laboratory of Meat Processing, MOA, Jiangsu Synergetic Innovation Center of Meat Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China.
| | - Yantao Yin
- Key Laboratory of Meat Processing and Quality Control, MOE, Key Laboratory of Meat Processing, MOA, Jiangsu Synergetic Innovation Center of Meat Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Zihan Zhu
- Key Laboratory of Meat Processing and Quality Control, MOE, Key Laboratory of Meat Processing, MOA, Jiangsu Synergetic Innovation Center of Meat Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
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Xi L, Sun Y, Jiang S, Wen C, Ding W. Evaluation of effects of ultrasound-assisted curing on the flavor of Chinese bacon. ULTRASONICS SONOCHEMISTRY 2023; 96:106424. [PMID: 37156160 DOI: 10.1016/j.ultsonch.2023.106424] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 04/19/2023] [Accepted: 04/28/2023] [Indexed: 05/10/2023]
Abstract
The curing stage is of great importance in flavor formation during Chinese bacon processing. Ultrasound-assisted curing plays an essential role in the Lipid oxidation of meat products. In this study, GC-MS and electronic nose were used to analyze the influence of different power ultrasonic-assisted curing on the flavor formation of Chinese bacon. Through the analysis of phospholipid and lipase, the fundamental precursors of ultrasonic on the flavor of Chinese bacon were determined. It was found that there were differences in the flavor contour description of Chinese bacon between the ultrasonic treatment group, mainly due to the change in the W1W sensor. A total of 28 volatile compounds were detected by GC-MS, and the aldehyde content increased with ultrasonic power. PC and PE are the main flavor precursors in the curing process. This study provides a theoretical basis for improving the curing technology of Chinese bacon.
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Affiliation(s)
- Linjie Xi
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Yanan Sun
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Shengqi Jiang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Chunlu Wen
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Wu Ding
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China.
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Li D, Zhang W. Biogenic amines and volatile N-nitrosamines in Chinese smoked-cured bacon (Larou) from industrial and artisanal origins. FOOD ADDITIVES & CONTAMINANTS. PART B, SURVEILLANCE 2023; 16:143-160. [PMID: 36927403 DOI: 10.1080/19393210.2023.2186489] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
This study aimed to compare biogenic amines (BAs), volatile N-nitrosamines (VNAs) and chemical properties of Chinese smoked-cured bacon (Larou) from industrial and artisanal sources. The results indicated that nitrite residues were low in artisanal Larou, whereas the salt content was relatively high in all samples. The family-made Larou accumulated high levels of BAs and probably present a health risk. Additionally, phenylethylamine exceeded 30 mg/kg in 4 out of 5 industrial Larou samples, whereas, 9 VNAs concentrations were low and unlikely to induce adverse health effects on consumers. Principal component analysis revealed that the industrial Larou products had similar safety properties in terms of BAs and VNAs content when compared to the family-made samples. Correlation analysis indicated that BAs and VNAs were significantly correlated with free amino acids, aw, pH and NaCl, respectively. This study suggests that the quality of Larou needs to be further improved by reducing salt and BAs content.
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Affiliation(s)
- Dawei Li
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education, Key Laboratory of Meat Processing, Ministry of Agriculture, and Jiangsu Synergetic Innovation Center of Meat Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Wangang Zhang
- Key Laboratory of Meat Processing and Quality Control, Ministry of Education, Key Laboratory of Meat Processing, Ministry of Agriculture, and Jiangsu Synergetic Innovation Center of Meat Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
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Jin G, Liu Y, Zhang Y, Li C, He L, Zhang Y, Wang Y, Cao J. Underlying formation mechanisms of ultrasound-assisted brined porcine meat: The role of physicochemical modification, myofiber fragmentation and histological organization. ULTRASONICS SONOCHEMISTRY 2023; 94:106318. [PMID: 36753829 PMCID: PMC9932671 DOI: 10.1016/j.ultsonch.2023.106318] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/26/2023] [Accepted: 01/31/2023] [Indexed: 06/13/2023]
Abstract
Ultrasound treatment has been a good hurdle technique for meat curing processing, where both physical and chemical consequences can be involved towards final quality of obtained products. However, the specific correlation between ultrasound parameters and muscle fiber fragmentation and myofibrillar microstructural changes during curing deserve further evaluation. In present study, we comparatively studied the effect of ultrasound-assisted brining (UAB) and static brining (SB) on the muscle proteolysis events and microstructural/morphological variation of porcine meat as well as the physicochemical indices and histological characteristics. The results showed that UAB (20 kHz, 315 W for 1 h) could markedly enhance the muscle proteolysis with higher free-/peptide-bound alpha-amino-nitrogen (α-NH2-N) content (P < 0.05) than SB treatment and greatly improved the fragmentation of muscle fiber tissues of cured meat. Meanwhile, UAB processing favored more opening structures of myofibrillar proteins with more hydrophobic groups being exposed. The quantitative histological analysis revealed that, compared with SB treatment, UAB could significantly increase the gap between muscle fibers and the swelling of the perimysium (P < 0.01), proving an efficient curing process with better textural and water holding properties.
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Affiliation(s)
- Guofeng Jin
- School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Yuanyi Liu
- School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Yan Zhang
- School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Chengliang Li
- School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Lichao He
- School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Yuemei Zhang
- School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Ying Wang
- School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Jinxuan Cao
- School of Food and Health, Beijing Technology and Business University, Beijing 100048, China.
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