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Hamzeh A, Saelee L, Yongsawatdigul J. Physico-chemical properties of natural actomyosin from breast and thigh meat of fast- and slow-growing chicken: a comparative study. Poult Sci 2024; 103:104153. [PMID: 39153267 DOI: 10.1016/j.psj.2024.104153] [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: 03/16/2024] [Revised: 07/11/2024] [Accepted: 07/29/2024] [Indexed: 08/19/2024] Open
Abstract
Physico-chemical behaviors of natural actomyosin (NAM) from slow-growing Korat chicken (KC) breast and thigh at low (0.2 M) and high (0.6 M) NaCl concentrations were evaluated and compared to those from their corresponding muscles in fast-growing broiler chicken (BC). NAM from KC breast and thigh meat showed higher solubility than their corresponding in BC (p < 0.05). Breast NAM from both chickens showed the highest solubility at 0.4 M NaCl, while thigh NAMs showed the highest solubility at 0.8 M (p < 0.05). SDS-PAGE revealed higher protein extractability for breast NAMs at low ionic strength, regardless of breed and structural protein, particularly troponin, appeared to vary within muscle and breed. NAM from KC showed higher Ca2+-ATPase activity, surface hydrophobicity, but lower total sulfhydryl groups content (p < 0.05). Particle size of NAM solutions varied with ionic strength, in which KC-NAM showed larger size than at lower ionic strength, while BC-NAM appeared to be greater at higher ionic strength. NAM from KC breast showed higher thermal stability as higher initial (T0) and maximum (Tmax) denaturation temperatures of 48.4 and 54.8°C, respectively, recorded by microdifferential scanning calorimetry. The KC-NAM, particularly from breast, exhibited lower turbidity within 40-50°C, while turbidity increased in BC samples at low ionic strength when heated at 60°C. Dynamic rheology revealed different storage modulus (G') depending on breed, muscle type and ionic strength. Breast BC-NAM formed more elastic gel with higher end point G' at 80°C (Ge'; p < 0.05). Ionic strength showed reverse effects on different breeds as a stronger Ge' value achieved in KC- NAM at low ionic strength, while high ionic strength induced stronger gel in BC samples. Aggregation of NAMs began at lower temperatures at higher ionic strength and actin dissociation probably occurred in breast NAM from KC as observed by a drop of G' at around 70°C. The results of this study revealed differences between NAM of the two breeds, by which higher gel elasticity are expected in KC at lower ionic strength.
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Affiliation(s)
- Ali Hamzeh
- School of Food Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Lobdaw Saelee
- School of Food Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Jirawat Yongsawatdigul
- School of Food Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand.
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Yu Y, Fan C, Qi J, Zhao X, Yang H, Ye G, Zhang M, Liu D. Effect of ultrasound treatment on porcine myofibrillar protein binding furan flavor compounds at different salt concentrations. Food Chem 2024; 443:138427. [PMID: 38277938 DOI: 10.1016/j.foodchem.2024.138427] [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: 09/25/2023] [Revised: 12/05/2023] [Accepted: 01/10/2024] [Indexed: 01/28/2024]
Abstract
The effects of ultrasound (500 W) on the interaction of porcine myofibrillar protein (MP) with furan flavor compounds at different salt concentrations (0.6 %, 1.2 % and 2.4 %) were investigated. With the increase of salt concentration, the particle size of MP decreased, and the surface hydrophobicity and active sulfhydryl content increased due to the unfolding and depolymerization of MP. At the same time, ultrasound promoted the exposure of hydrophobic binding sites and hydrogen bonding sites of MP in different salt concentration systems, thus improving the binding ability of MP with furan compounds by 2 % to 22 %, among which MP had the strongest binding capacity of 2-pentylfuran. In conclusion, ultrasound could effectively promote the unfolding of the secondary structure of MP, which was beneficial to the combination of MP and furan flavor compounds under different salt concentrations.
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Affiliation(s)
- Ying Yu
- College of Food Science and Technology, Bohai University, Jinzhou 121013, China
| | - Chaoxia Fan
- College of Food Science and Technology, Bohai University, Jinzhou 121013, China
| | - Jun Qi
- Anhui Engineering Laboratory for Agro-products Processing, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Xiaocao Zhao
- College of Food Science and Technology, Bohai University, Jinzhou 121013, China
| | - Hui Yang
- College of Food Science and Technology, Bohai University, Jinzhou 121013, China
| | - Guoqing Ye
- College of Food Science and Technology, Bohai University, Jinzhou 121013, China
| | - Mingcheng Zhang
- College of Food Science and Technology, Bohai University, Jinzhou 121013, China
| | - Dengyong Liu
- College of Food Science and Technology, Bohai University, Jinzhou 121013, China.
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Panpipat W, Tongkam P, Çavdar HK, Chaijan M. Single Ultrasonic-Assisted Washing for Eco-Efficient Production of Mackerel ( Auxis thazard) Surimi. Foods 2023; 12:3817. [PMID: 37893710 PMCID: PMC10606066 DOI: 10.3390/foods12203817] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 10/04/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023] Open
Abstract
This study highlights a promising single washing method for producing dark-fleshed mackerel surimi aided by ultrasonication in conjunction with cold carbonated water containing 0.6% NaCl and mixed antioxidants (0.5% EDTA/0.2% sodium erythorbate/0.2% sodium tripolyphosphate) (CSA). Different washing periods (5, 10, and 15 min) with and without ultrasound were tested. Unwashed mince (A1) and conventional water-washed surimi (10 min/cycle, 3 cycles) (A2) were used as controls. A3, A4, and A5 were subjected to ultrasound-assisted washing for 5, 10, and 15 min, respectively, whereas A6, A7, and A8 had non-ultrasound-assisted washing for 5, 10, and 15 min. Results showed that the surimi yield decreased as the ultrasonic treatment time increased from 5 to 15 min (p < 0.05). Increased ultrasonic time resulted in greater protein denaturation, protein oxidation, myoglobin removal, and lipid oxidation in surimi (p < 0.05). Surimi produced by CSA ultrasonication for 5 min (A3), on the other hand, had a comparable overall quality to A2 surimi (p > 0.05). The correspondence gel (A3) outperformed the control gel (A2) in terms of gel strength, whiteness, and water-holding capacity (p < 0.05). The formation of regularly continuous, more organized, and smooth network structures in surimi gel was observed in A2 and A3 gels, whereas sparse and larger pore sizes were noticed in surimi gels produced by longer ultrasonic treatment. All of the surimi gels had identical FTIR spectra, indicating that the functional groups of the protein gel were consistent throughout. As a result, a single 5 min CSA-ultrasonic washing could potentially yield surimi of comparable quality to conventional washing. This could pave the way for the development of dark-fleshed fish surimi, which would require less washing time and produce less waste water.
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Affiliation(s)
- Worawan Panpipat
- Food Technology and Innovation Research Center of Excellence, School of Agricultural Technology and Food Industry, Walailak University, Nakhon Si Thammarat 80160, Thailand; (W.P.); (P.T.)
| | - Pornthip Tongkam
- Food Technology and Innovation Research Center of Excellence, School of Agricultural Technology and Food Industry, Walailak University, Nakhon Si Thammarat 80160, Thailand; (W.P.); (P.T.)
| | - Hasene Keskin Çavdar
- Department of Food Engineering, Faculty of Engineering, Gaziantep University, University Boulevard, TR-27310 Gaziantep, Turkey;
| | - Manat Chaijan
- Food Technology and Innovation Research Center of Excellence, School of Agricultural Technology and Food Industry, Walailak University, Nakhon Si Thammarat 80160, Thailand; (W.P.); (P.T.)
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Liu J, Zhang H, Sun X, Fan F. Development and Characterization of Pickering Emulsion Stabilized by Walnut Protein Isolate Nanoparticles. Molecules 2023; 28:5434. [PMID: 37513302 PMCID: PMC10386357 DOI: 10.3390/molecules28145434] [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: 06/08/2023] [Revised: 07/07/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
This study was conducted to prepare walnut protein isolate nanoparticles (nano-WalPI) by pH-cycling, combined with the ultrasound method, to investigate the impact of various nano-WalPI concentrations (0.5~2.5%) and oil volume fractions (20~70%) on the stability of Pickering emulsion, and to improve the comprehensive utilization of walnut residue. The nano-WalPI was uniform in size (average size of 108 nm) with good emulsification properties (emulsifying activity index and stability index of 32.79 m2/g and 1423.94 min, respectively), and it could form a stable O/W-type Pickering emulsion. When the nano-WalPI concentration was 2.0% and the oil volume fraction was 60%, the best stability of Pickering emulsions was achieved with an average size of 3.33 μm, and an elastic weak gel network structure with good thermal stability and storage stability was formed. In addition, the emulsion creaming index value of the Pickering emulsion was 4.67% after 15 days of storage. This study provides unique ideas and a practical framework for the development and application of stabilizers for food-grade Pickering emulsions.
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Affiliation(s)
- Jiongna Liu
- College of Life Sciences, Southwest Forestry University, Kunming 650224, China
| | - Hengxuan Zhang
- College of Life Sciences, Southwest Forestry University, Kunming 650224, China
| | - Xue Sun
- College of Life Sciences, Southwest Forestry University, Kunming 650224, China
| | - Fangyu Fan
- College of Life Sciences, Southwest Forestry University, Kunming 650224, China
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming 650224, China
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Kunming 650224, China
- Key Laboratory of National Forestry and Grassland Administration on Biodiversity Conservation in Southwest China, Southwest Forestry University, Kunming 650224, China
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Gao X, Yang S, You J, Yin T, Xiong S, Liu R. Changes in Gelation Properties of Silver Carp Myosin Treated by Combination of High Intensity Ultrasound and NaCl. Foods 2022; 11:foods11233830. [PMID: 36496636 PMCID: PMC9735971 DOI: 10.3390/foods11233830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022] Open
Abstract
The molecular behavior of myosin in a low-salt environment limited the production of surimi-based products. This study aimed to investigate the effect of the combination of high intensity ultrasound (HIU) and NaCl (0.1, 0.3, 0.5 mol/L) on the physicochemical indexes of myosin. The changes were evaluated by solubility, ultraviolet (UV) spectroscopy, dynamic rheological properties, water holding capacity (WHC), microstructures, etc. For control samples, the gelation properties of myosin strengthened upon NaCl increasing. Combination of HIU and NaCl significantly improved the solubility of myosin, which was due to the conformational changes and the exposure of reactive groups. Meanwhile, the particle size of myosin obviously decreased when observed by atomic force microscope, which in turn promoted the stability of myosin. Furthermore, the improvement in solution behaviors of myosin treated by combination of HIU and NaCl contributed to the gelation properties as well as the formation of compact microstructures, which obtained high WHC and low cooking loss of myosin gels. In conclusion, combination of HIU and NaCl induced the unfolding of myosin with the exposure of reactive groups, consequently facilitating the formation of denser microstructures. Moreover, the biggest degree of improvement in gelation properties was observed at 0.1 mol/L NaCl combined with HIU.
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Affiliation(s)
- Xia Gao
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education , Wuhan 430070, China
- National R&D Branch Center for Conventional Freshwater Fish Processing (Wuhan), Wuhan 430070, China
| | - Shengnan Yang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education , Wuhan 430070, China
- National R&D Branch Center for Conventional Freshwater Fish Processing (Wuhan), Wuhan 430070, China
| | - Juan You
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education , Wuhan 430070, China
- National R&D Branch Center for Conventional Freshwater Fish Processing (Wuhan), Wuhan 430070, China
| | - Tao Yin
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education , Wuhan 430070, China
- National R&D Branch Center for Conventional Freshwater Fish Processing (Wuhan), Wuhan 430070, China
| | - Shanbai Xiong
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education , Wuhan 430070, China
- National R&D Branch Center for Conventional Freshwater Fish Processing (Wuhan), Wuhan 430070, China
| | - Ru Liu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education , Wuhan 430070, China
- National R&D Branch Center for Conventional Freshwater Fish Processing (Wuhan), Wuhan 430070, China
- Correspondence:
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Gao X, You J, Yin T, Xiong S, Liu R. Simultaneous effect of high intensity ultrasound power, time, and salt contents on gelling properties of silver carp surimi. Food Chem 2022; 403:134478. [DOI: 10.1016/j.foodchem.2022.134478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 09/13/2022] [Accepted: 09/28/2022] [Indexed: 10/14/2022]
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Zhang T, Wang J, Feng J, Liu Y, Suo R, Jin J, Wang W. Ultrasonic pretreatment improves the gelation properties of low-salt Penaeus vannamei (Litopenaeus vannamei) surimi. ULTRASONICS SONOCHEMISTRY 2022; 86:106031. [PMID: 35569439 PMCID: PMC9118890 DOI: 10.1016/j.ultsonch.2022.106031] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/16/2022] [Accepted: 05/06/2022] [Indexed: 05/23/2023]
Abstract
The effects of different ultrasonic pretreatments (120-600 W, 20 min; 360 W, 10-30 min) on the gel properties of shrimp surimi were investigated. Gel properties and protein functional properties were analysed to clarify the mechanism of action of ultrasound. The gel strength, water holding capacity and surface hydrophobicity of shrimp surimi gel increased initially and then decreased with the increase in ultrasound power or time, but the change in total sulfhydryl content showed the opposite trend, which indicated that proper ultrasound pretreatment could improve the gel properties of shrimp surimi, expand the protein to a greater extent and expose more SH groups and hydrophobic groups. According to scanning electron microscopy observation, ultrasound made shrimp surimi gel form a denser gel network. Fourier transform infrared analysis indicated that the α-helix content in shrimp surimi gel decreased initially and then increased with the increase of in ultrasound power or time, whereas the change in β-sheet content showed the opposite trend. And the protein was the most stable in 360 W/20 min pretreatment. SDS-PAGE patterns showed that proper ultrasound inhibited the degradation of actin and troponin C. In addition, dynamic rheology illustrated that the G' values of the ultrasonic pretreatment group were higher than that of the control group, indicating that ultrasound could improve the elasticity and stability of shrimp surimi gel. The results suggested that the shrimp surimi gel pretreated by 360 W/20 min ultrasound showed the best gel properties. Furthermore, the correlation between the indexes affecting the properties of the gel was analyzed. This study provides a new technical means to improve the gel properties of shrimp surimi.
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Affiliation(s)
- Tong Zhang
- College of Food Science and Technology, Hebei Agricultural University, Baoding, Hebei 071000, China
| | - Jie Wang
- College of Food Science and Technology, Hebei Agricultural University, Baoding, Hebei 071000, China
| | - Jiaqi Feng
- College of Food Science and Technology, Hebei Agricultural University, Baoding, Hebei 071000, China
| | - Yaqiong Liu
- College of Food Science and Technology, Hebei Agricultural University, Baoding, Hebei 071000, China.
| | - Ran Suo
- College of Food Science and Technology, Hebei Agricultural University, Baoding, Hebei 071000, China
| | - Jingyu Jin
- College of Food Science and Technology, Hebei Agricultural University, Baoding, Hebei 071000, China
| | - Wenxiu Wang
- College of Food Science and Technology, Hebei Agricultural University, Baoding, Hebei 071000, China
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8
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Somjid P, Panpipat W, Petcharat T, Chaijan M. Biochemical property and gel-forming ability of mackerel ( Auxis thazard) surimi prepared by ultrasonic assisted washing. RSC Adv 2021; 11:36199-36207. [PMID: 35492760 PMCID: PMC9043366 DOI: 10.1039/d1ra04768j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 10/08/2021] [Indexed: 02/05/2023] Open
Abstract
A low gel-forming ability is needed to be encountered using the dark-fleshed fish as a raw material. Optimal washing process can be a principled way of improving the gelling properties because washing is the most important step for surimi production. This study aimed to investigate the effect of ultrasonic-assisted washing (UAW) on the biochemical properties and gel-forming ability of frigate mackerel (Auxis thazard) surimi. Unwashed mince and conventional washing (CW) with 3-cycle of water (10 min per cycle) were compared to UAW for 5 and 10 min per cycle. UAW tended to improve the lipid removal, reduce the TCA-soluble peptide, and increase the surface hydrophobicity of surimi, but it had no influence on the Ca2+-ATPase activity, reactive sulfhydryl content, haem protein content, and lipid oxidation. UAW for 5 min per cycle rendered the surimi with the highest gel strength, whiteness, and water holding capacity as well as a regular aggregated network. With this method, the washing time can be reduced to 50% compared to the CW. Therefore, UAW for 5 min per cycle was an alternative approach for the production of mackerel surimi.
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Affiliation(s)
- Panumas Somjid
- Food Technology and Innovation Research Center of Excellence, Department of Food Science and Innovation, School of Agricultural Technology and Food Industry, Walailak University Thasala Nakhon Si Thammarat 80161 Thailand +66 75 672302 +66 75 672384
| | - Worawan Panpipat
- Food Technology and Innovation Research Center of Excellence, Department of Food Science and Innovation, School of Agricultural Technology and Food Industry, Walailak University Thasala Nakhon Si Thammarat 80161 Thailand +66 75 672302 +66 75 672384
| | - Tanyamon Petcharat
- Food Technology and Innovation Research Center of Excellence, Department of Food Science and Innovation, School of Agricultural Technology and Food Industry, Walailak University Thasala Nakhon Si Thammarat 80161 Thailand +66 75 672302 +66 75 672384
- Professional Culinary Arts Programme, School of Management, Walailak University Nakhon Si Thammarat 80161 Thailand
| | - Manat Chaijan
- Food Technology and Innovation Research Center of Excellence, Department of Food Science and Innovation, School of Agricultural Technology and Food Industry, Walailak University Thasala Nakhon Si Thammarat 80161 Thailand +66 75 672302 +66 75 672384
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Liu C, Xu Y, Xia W, Jiang Q. Enhancement of storage stability of surimi particles stabilized novel pickering emulsions: Effect of different sequential ultrasonic processes. ULTRASONICS SONOCHEMISTRY 2021; 79:105802. [PMID: 34673341 PMCID: PMC8560627 DOI: 10.1016/j.ultsonch.2021.105802] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 10/08/2021] [Accepted: 10/16/2021] [Indexed: 05/05/2023]
Abstract
Preparation of highly stable Pickeringemulsions stabilized by food grade particles especially with low concentrations is of concern. In this study, the effects of two-step emulsification procedure with different sequential ultrasonic processes on the storage stability, droplets size, zeta potential, microstructures as well as the rheological behaviors of surimi particles-stabilized Pickeringemulsions with 0.6 oil-water ratio were investigated. The results showed that the surimi particles based-emulsions prepared by the homogenization-ultrasonic (H-U) or ultrasonic-homogenization (U-H) method both possessed excellent physical stability during 14 days storage. Particularly, the stability index of emulsions all exceeded 99.5% in the U-H groups. The confocal laser scanning microscopy (CLSM) and cryo-scanning electron microscope (cryo-SEM) images provide evidence that more particles attached on the oil-water interfaces and the network structures formed via particle-particle interactions obviously arrested phase separation in H-U and U-H emulsions. Moreover, the Pickering emulsions obtained by two-step method all exhibited higher viscosity and storage modulus values, which were also conducive to the special storage stability of samples. In short, the storage stability of protein based-Pickering emulsions can be enhanced using homogenization-ultrasonic (H-U) or ultrasonic-homogenization (U-H) procedure.
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Affiliation(s)
- Cikun Liu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, 1800 Lihu Ave, Wuxi, Jiangsu 214122, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, 1800 Lihu Ave, Wuxi, Jiangsu 214122, China
| | - Yanshun Xu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, 1800 Lihu Ave, Wuxi, Jiangsu 214122, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, 1800 Lihu Ave, Wuxi, Jiangsu 214122, China.
| | - Wenshui Xia
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, 1800 Lihu Ave, Wuxi, Jiangsu 214122, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, 1800 Lihu Ave, Wuxi, Jiangsu 214122, China.
| | - Qixing Jiang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, 1800 Lihu Ave, Wuxi, Jiangsu 214122, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, 1800 Lihu Ave, Wuxi, Jiangsu 214122, China
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Gao X, Yongsawatdigul J, Wu R, You J, Xiong S, Du H, Liu R. Effect of ultrasound pre-treatment modes on gelation properties of silver carp surimi. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111945] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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11
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Tang L, Yongsawatdigul J. High-intensity ultrasound improves threadfin bream surimi gelation at low NaCl contents. J Food Sci 2021; 86:842-851. [PMID: 33586792 DOI: 10.1111/1750-3841.15637] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 12/12/2020] [Accepted: 01/12/2021] [Indexed: 11/30/2022]
Abstract
Effects of high-intensity ultrasound (HIU) treatments on gelation of threadfin bream (Nemipterus spp.) surimi at various NaCl contents (0.5, 1, and 2% NaCl) were investigated. Protein extractability at 0.5% NaCl was increased with the ultrasonic intensity (p < 0.05). At all tested NaCl contents, reactive sulfhydryl group (SH) content and surface hydrophobicity of the surimi pastes were increased after HIU treatments and were accompanied by a decrease in the Ca2+ -ATPase activity and total SH content, indicating a greater extent of unfolding and conformational changes induced by HIU at higher NaCl contents. Textural properties and color of the surimi gels at 0.5% NaCl were improved concomitant to an increase in ultrasonic intensity (p < 0.05), whereas HIU treatments resulted in inferior gels at 1 and 2% NaCl. Scanning electron microscopy (SEM) revealed that HIU resulted in a more orderly gel network at 0.5% NaCl. Fourier transform infrared (FT-IR) spectroscopy indicated that the α-helix content of the surimi gels was decreased as the ultrasonic intensity and NaCl content increased, confirming that structural changes induced by HIU were more profound at higher NaCl contents. The results suggested that HIU technology can be applied to improve only the 0.5% NaCl surimi gel. PRACTICAL APPLICATION: High-intensity ultrasound (HIU) improved surimi gel containing 0.5% NaCl due to an increase in protein extractability and protein conformational changes. It is likely to lay a theoretical foundation for utilization of HIU technology in production of surimi-based products at low/reduced salt levels.
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Affiliation(s)
- Ling Tang
- School of Food Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Jirawat Yongsawatdigul
- School of Food Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
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12
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Tian R, Feng J, Huang G, Tian B, Zhang Y, Jiang L, Sui X. Ultrasound driven conformational and physicochemical changes of soy protein hydrolysates. ULTRASONICS SONOCHEMISTRY 2020; 68:105202. [PMID: 32593148 DOI: 10.1016/j.ultsonch.2020.105202] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 05/24/2020] [Accepted: 05/30/2020] [Indexed: 05/06/2023]
Abstract
The effect of ultrasound on the conformational and physicochemical properties of soy protein isolate hydrolysates (SPHs) was investigated. SPHs were prepared at hydrolysis times of 20 min, 60 min, and 180 min, then treated with ultrasound for 10 min, 20 min, and 30 min at a frequency of 20 kHz and output powers of 150 W and 450 W. The structural properties and antioxidant capacities of the aqueous layer of SPHs (ASPHs) after sonication were evaluated by Fourier-transform infrared spectroscopy (FTIR), intrinsic fluorescence, DPPH radical scavenging activity assays, and microscopy observations. Results obtained showed that ultrasound treatment significantly disrupted the peptide aggregates formed during protein hydrolysis. The protein solubility was significantly increased after sonication (by up to 18.33%), as did the percentage of proteins with MW < 1 kDa in ASPHs. The antioxidant capacity of ASPHs also increased, as measured by DPPH assay. FTIR analysis of ASPHs indicated that the protein secondary structures were different, with an increase in β-sheet and a decrease in α-helix and β-turn. Furthermore, the changes in fluorescence spectra of ASPHs showed the transition of protein tertiary structure with a greater exposure of Trp residues in the side chains. Scanning electron microscope (SEM) and atomic force microscope (AFM) observations of the morphological structure of ASPHs further confirmed the significant effect of sonication on disrupting peptide aggregates. In conclusion, ultrasound can be used as an efficient treatment to promote the solubility of protein hydrolysates.
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Affiliation(s)
- Ran Tian
- College of Food Science, Northeast Agricultural University, China
| | - Junran Feng
- College of Food Science, Northeast Agricultural University, China
| | - Guo Huang
- College of Food Science, Northeast Agricultural University, China
| | - Bo Tian
- College of Food Science, Northeast Agricultural University, China
| | - Yan Zhang
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin 150030, China
| | - Lianzhou Jiang
- College of Food Science, Northeast Agricultural University, China; National Research Center of Soybean Engineering and Technology, Harbin 150030, China
| | - Xiaonan Sui
- College of Food Science, Northeast Agricultural University, China; National Research Center of Soybean Engineering and Technology, Harbin 150030, China.
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