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Diao X, Wang Y, Jia R, Chen X, Liu G, Liu D, Guan H. Influences of ultrasonic treatment on the physicochemical properties and microstructure of diacylglycerol-loaded emulsion stabilized with soybean protein isolate and sodium alginate. ULTRASONICS SONOCHEMISTRY 2024; 108:106981. [PMID: 38981339 PMCID: PMC11280087 DOI: 10.1016/j.ultsonch.2024.106981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 06/22/2024] [Accepted: 07/04/2024] [Indexed: 07/11/2024]
Abstract
This study examined the impacts of ultrasonic power (0, 150, 300, 450, 600, and 750 W) and ultrasonic durations (3, 6, 9, 12, and 15 min) on the physicochemical properties and microstructure of diacylglycerol (DAG)-loaded emulsions stabilized with soybean protein isolate (SPI) and sodium alginate (SA). The findings indicated that the smallest particle size, zeta potential, and contact angle for SPI-SA-DAG emulsions were respectively 5.58 μm, -49.85 mV, and 48.65°, achieved at an ultrasonic power of 450 W. The emulsification properties, loss modulus, storage modulus, and apparent viscosity of the emulsions were optimal at this power setting and at a duration of 9 min. Analytical techniques, including confocal laser scanning-, scanning electron-, and atomic force microscopy, revealed that ultrasonication significantly altered emulsion aggregation state, with the surface roughness (Rq) being minimized at 450 W. These results demonstrated that the stability of SPI-SA-DAG emulsions can be effectively enhanced by an appropriate ultrasonic treatment at 450 W for 9 min. This research provides theoretical support for the broad application of sonication techniques in the food industry.
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Affiliation(s)
- Xiaoqin Diao
- College of Food Science and Technology, Bohai University, Meat Innovation Center of Liaoning Province, Jinzhou, Liaoning 121013, PR China
| | - Ying Wang
- College of Food Science and Technology, Bohai University, Meat Innovation Center of Liaoning Province, Jinzhou, Liaoning 121013, PR China
| | - Ruixin Jia
- College of Food Science and Technology, Bohai University, Meat Innovation Center of Liaoning Province, Jinzhou, Liaoning 121013, PR China
| | - Xiaodong Chen
- College of Food Science and Technology, Bohai University, Meat Innovation Center of Liaoning Province, Jinzhou, Liaoning 121013, PR China
| | - Guanhua Liu
- College of Food Science and Technology, Bohai University, Meat Innovation Center of Liaoning Province, Jinzhou, Liaoning 121013, PR China
| | - Dengyong Liu
- College of Food Science and Technology, Bohai University, Meat Innovation Center of Liaoning Province, Jinzhou, Liaoning 121013, PR China.
| | - Haining Guan
- College of Food Science and Technology, Bohai University, Meat Innovation Center of Liaoning Province, Jinzhou, Liaoning 121013, PR China.
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Han L, Tang C, Ma Y, Liu X, Jiang Y, Jiang H, Min D. Revealing the synergistic effect of hydration and pulsed ultrasound on the emulsifying properties of silkworm pupa protein and its stabilized emulsion. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:5407-5418. [PMID: 38345737 DOI: 10.1002/jsfa.13377] [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: 09/20/2023] [Revised: 01/18/2024] [Accepted: 02/06/2024] [Indexed: 02/22/2024]
Abstract
BACKGROUND Silkworm (Bombyx moil L.) Pupa protein (SPP) is a high-quality insect protein and is considered a sustainable alternative source for traditional animal food protein. However, the utilization of SPP is limited because of its low solubility and emulsifying ability. In the present study, the synergistic effect of hydration and pulsed ultrasound on the physicochemical properties of SPP and SPP-stabilized Pickering emulsions was evaluated. RESULTS Pulsed ultrasound changed the particle size of SPP and its conformation. As the pulsed ultrasound increased from 0 s to 5 s, the α-helix and SS contents of SPP decreased, whereas the β-sheet and SH contents increased, which in turn improved its solubility and amphiphilicity. As a result, the SPP treated by a combination of 12 h of hydration and 3 s of ultrasound exhibited a contact angle of 74.95°, hydrophobicity of 904.83, EAI of 6.66 m2 g-1 and ESI of 190.69 min. Compared with the combination of 1 h of hydration and 5 s of ultrasound, the combination of 12 h of hydration and 3 s of ultrasound exerted more soluble and hydrophobic SPP, whereas the EAI and ESI of the samples were higher. Notably, the ultrasound-treated SPP can form a stable gel-like emulsion (oil fraction ranging from 70% to 80%). CONCLUSION The combination of hydration and ultrasound can effectively improve the physicochemical characteristics of SPP as well as its emulsion stability. Sufficient hydration is a cost-effective method for facilitating the modification of proteins by ultrasound treatment. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Lishu Han
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
- Key Laboratory of Deep Processing and Safety Control for Specialty Agricultural Products in Guangxi Universities, Education Department of Guangxi, Nanning, China
| | - Chengjiang Tang
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
- Key Laboratory of Deep Processing and Safety Control for Specialty Agricultural Products in Guangxi Universities, Education Department of Guangxi, Nanning, China
| | - Yue Ma
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
- Key Laboratory of Deep Processing and Safety Control for Specialty Agricultural Products in Guangxi Universities, Education Department of Guangxi, Nanning, China
| | - Xiaoling Liu
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
- Key Laboratory of Deep Processing and Safety Control for Specialty Agricultural Products in Guangxi Universities, Education Department of Guangxi, Nanning, China
| | - Yi Jiang
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
- Key Laboratory of Deep Processing and Safety Control for Specialty Agricultural Products in Guangxi Universities, Education Department of Guangxi, Nanning, China
| | - Hongrui Jiang
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
- Key Laboratory of Deep Processing and Safety Control for Specialty Agricultural Products in Guangxi Universities, Education Department of Guangxi, Nanning, China
| | - Douyong Min
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
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Lu H, Zhao R, Zhang L, Liu W, Liu Q, Liu S, Hu H. Interactions between partially gelatinized starch and nonstarch components in potato flour and their performance in emulsification. Int J Biol Macromol 2024; 269:132044. [PMID: 38701998 DOI: 10.1016/j.ijbiomac.2024.132044] [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: 12/30/2023] [Revised: 04/17/2024] [Accepted: 04/30/2024] [Indexed: 05/06/2024]
Abstract
To develop natural complex materials as starch-dominated emulsifiers, pregelatinization was conducted on potato flour. The effects of gelatinization degrees (GDs, 0 %-50 %) on the structural characteristics, physicochemical properties, and emulsifying potentials of potato flour were investigated. Increasing GD of potato flour promoted protein aggregation on starch granules surfaces and transformed starch semicrystalline structures into melted networks. The emulsion stabilized with 50 % GD potato flour exhibited excellent storage stability (7 d) and gel-like behavior. With increasing GD from 0 to 50 %, the respective apparent viscosities and elastic moduli of emulsion increased from 21.4 Pa to 1126.7 Pa, and from 0.133 Pa·s to 1176.6 Pa·s, promoting the formation of a stable network structure in the emulsion. Fourier transform infrared spectra from emulsions with a continuous phase of >20 % GD displayed a new peak around 1740 cm-1, suggesting improved covalent interactions between droplets, thereby facilitating emulsion stability. Confocal laser scanning microscopy images indicated that droplets could be anchored in the melted networks and broken starch granules, inhibiting droplets coalescence. These results suggest that pregelatinization is a viable strategy for customizing natural starch-dominated emulsions.
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Affiliation(s)
- Huimin Lu
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, Guangdong 524088, PR China; Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Comprehensive Key Laboratory of Agro-products Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, PR China
| | - Ruixuan Zhao
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Comprehensive Key Laboratory of Agro-products Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, PR China
| | - Liang Zhang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Comprehensive Key Laboratory of Agro-products Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, PR China
| | - Wei Liu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Comprehensive Key Laboratory of Agro-products Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, PR China
| | - Qiannan Liu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Comprehensive Key Laboratory of Agro-products Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, PR China
| | - Shucheng Liu
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, Guangdong 524088, PR China.
| | - Honghai Hu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Comprehensive Key Laboratory of Agro-products Processing, Ministry of Agriculture and Rural Affairs, Beijing 100193, PR China.
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Hussain Badar I, Wang Z, Chen Q, Liu Q, Ma J, Liu H, Kong B. Ultrasonic enhancement of structural and emulsifying properties of heat-treated soy protein isolate nanoparticles to fabricate flaxseed-derived diglyceride-based pickering emulsions. Food Chem 2024; 442:138469. [PMID: 38266416 DOI: 10.1016/j.foodchem.2024.138469] [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: 08/26/2023] [Revised: 12/30/2023] [Accepted: 01/15/2024] [Indexed: 01/26/2024]
Abstract
Flaxseed-derived diglyceride (DAG)-based Pickering emulsions were fabricated using soy protein isolate (SPI) nanoparticles as stabilizer. The SPI nanoparticles were prepared under the combined action of heating and ultrasound treatment. The SPI nanoparticles exposed to 600 W power exhibited the smallest particle size (133.36 nm) and zeta potential (-34.77 mV). Ultrasonic treatment did not significantly impact the polypeptide chain's primary structure but induced changes in the secondary structure. The Pickering emulsions stabilized with ultrasound-treated SPI nanoparticles showed smaller particle size, lower zeta potential, and improved emulsifying properties. Notably, at 450 W power, these emulsions showed a higher solid-liquid balance, reduced mean square displacement, backscattering fluctuations, and turbiscan stability index. Besides, they displayed a more compact microstructure with smaller droplets. In conclusion, SPI subjected to heating and 450 W ultrasound power resulted in the fabrication of DAG-based Pickering emulsions with enhanced microstructure and stability.
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Affiliation(s)
- Iftikhar Hussain Badar
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China; Department of Meat Science and Technology, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan
| | - Ziyi Wang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Qian Chen
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Qian Liu
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Jing Ma
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Haotian Liu
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Baohua Kong
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
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Liu Q, Chen T, Chen L, Zhao R, Ye X, Wang X, Wu D, Hu J. High Internal Phase Emulsions Stabilized with Ultrasound-Modified Spirulina Protein for Curcumin Delivery. Foods 2024; 13:1324. [PMID: 38731694 PMCID: PMC11083376 DOI: 10.3390/foods13091324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 04/23/2024] [Accepted: 04/24/2024] [Indexed: 05/13/2024] Open
Abstract
Spirulina protein (SP) is recognized as a nutritious edible microbial protein and holds potential as a natural emulsifier. Due to the inherent challenges SP faces in stabilizing high internal phase emulsions (HIPEs), ultrasonic techniques were utilized for modification. Noticeable alterations in the structural and functional properties of SP were observed following ultrasonic treatment at various power levels (0, 100, 300, and 500 W). Ultrasound treatment disrupted non-covalent interactions within the protein polymer structure, leading to the unfolding of molecular structures and the exposure of hydrophobic groups. Importantly, the particle size of SP was reduced the most at an ultrasonic power of 300 W, and the three-phase contact angle reached its peak at 84.3°. The HIPEs stabilized by SP modified with 300 W ultrasonication have high apparent viscosity and modulus values and strong storage stability under different environmental conditions. Additionally, the encapsulation of curcumin in HIPEs led to improved retention of curcumin across various settings. The bioavailability increased to 35.36, which is 2.8 times higher than the pure oil. These findings suggest that ultrasound-modified SP is a promising emulsifier for HIPEs, and is expected to encapsulate hydrophobic nutrients such as curcumin more effectively.
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Affiliation(s)
- Qing Liu
- State Key Laboratory of Marine Food Processing and Safety Control, Dalian Polytechnic University, Dalian 116034, China; (Q.L.); (T.C.); (L.C.); (X.Y.); (X.W.); (D.W.)
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Tao Chen
- State Key Laboratory of Marine Food Processing and Safety Control, Dalian Polytechnic University, Dalian 116034, China; (Q.L.); (T.C.); (L.C.); (X.Y.); (X.W.); (D.W.)
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Lihang Chen
- State Key Laboratory of Marine Food Processing and Safety Control, Dalian Polytechnic University, Dalian 116034, China; (Q.L.); (T.C.); (L.C.); (X.Y.); (X.W.); (D.W.)
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Runan Zhao
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China;
| | - Ximei Ye
- State Key Laboratory of Marine Food Processing and Safety Control, Dalian Polytechnic University, Dalian 116034, China; (Q.L.); (T.C.); (L.C.); (X.Y.); (X.W.); (D.W.)
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Xinchuang Wang
- State Key Laboratory of Marine Food Processing and Safety Control, Dalian Polytechnic University, Dalian 116034, China; (Q.L.); (T.C.); (L.C.); (X.Y.); (X.W.); (D.W.)
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Di Wu
- State Key Laboratory of Marine Food Processing and Safety Control, Dalian Polytechnic University, Dalian 116034, China; (Q.L.); (T.C.); (L.C.); (X.Y.); (X.W.); (D.W.)
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Jiangning Hu
- State Key Laboratory of Marine Food Processing and Safety Control, Dalian Polytechnic University, Dalian 116034, China; (Q.L.); (T.C.); (L.C.); (X.Y.); (X.W.); (D.W.)
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
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Hong Z, Kong Y, Guo R, Huang Q. Stabilizing effect of silver carp myofibrillar protein modified by high intensity ultrasound on high internal phase emulsions: Protein denaturation, interfacial adsorption and reconfiguration. Int J Biol Macromol 2024; 265:130896. [PMID: 38490385 DOI: 10.1016/j.ijbiomac.2024.130896] [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: 02/02/2024] [Revised: 03/11/2024] [Accepted: 03/12/2024] [Indexed: 03/17/2024]
Abstract
This study evaluated the impact of high intensity ultrasound (HIU) on myofibrillar proteins (MP) from silver carp, and investigated the stabilizing effect of HIU-treated MP (UMP) on high internal phase emulsions (HIPEs). Ultrasonic cavitation induced protein denaturation by decreasing size and unfolding conformation, to expose more hydrophobic groups, particularly UMP at 390 W, showing the smallest particle size (181.71 nm) and most uniform distribution. These structural changes caused that UMP under 390 W exhibited the highest surface hydrophobicity, solubility (92.72 %) and emulsibility (115.98 m2/g and 70.4 min), all of which contributed to fabricating stable HIPEs with oil volume fraction up to 0.8. UMP-based HIPEs possessed tightly packed gel network and self-supporting appearance due to the adsorption of numerous proteins at the oil-water interface and the reduction of interfacial tension by protein reconfiguration. The larger interface coverage reinforced cross-linking between interfacial proteins, thus increasing the viscoelasticity and recoverability of HIPEs, also the resistance to centrifugal force, high temperature (90 °C, 30 min) and freeze-thaw cycles. These findings furnished insightful perspectives for MP deep processing through HIU, expanding the high-value application of UMP-based HIPEs in fat replacer, nutritional delivery system with high encapsulation content and novel 3D printing ink.
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Affiliation(s)
- Zehan Hong
- College of Food Science and Technology, MOE Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China; National R&D Branch Center for Conventional Freshwater Fish Processing, Wuhan 430070, China
| | - Yaqiu Kong
- College of Food Science and Technology, MOE Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China; National R&D Branch Center for Conventional Freshwater Fish Processing, Wuhan 430070, China
| | - Ruotong Guo
- College of Food Science and Technology, MOE Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China; National R&D Branch Center for Conventional Freshwater Fish Processing, Wuhan 430070, China
| | - Qilin Huang
- College of Food Science and Technology, MOE Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China; National R&D Branch Center for Conventional Freshwater Fish Processing, Wuhan 430070, China.
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