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Hou W, Ma X, Yu Z, Bari L, Jiang H, Du Q, Fan R, Wang J, Yang Y, Han R. Impact of ultrasonic and heat treatments on the physicochemical properties and rennet-induced coagulation characteristics of milk from various species. ULTRASONICS SONOCHEMISTRY 2024; 111:107084. [PMID: 39357213 DOI: 10.1016/j.ultsonch.2024.107084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 09/19/2024] [Accepted: 09/25/2024] [Indexed: 10/04/2024]
Abstract
This study investigates the effects of heat and ultrasonic treatments on the physicochemical parameters and rennet-induced coagulation properties of milk from a variety of species, including cow, goat, buffalo, and donkey. Milk samples were subjected to heat treatments at different temperatures (65 °C, 80 °C, 90 °C, 100 °C) and ultrasonic treatment at varying power levels (200 W, 400 W, 600 W, 800 W, 1000 W). The results revealed that changes in turbidity, particle size, zeta potential, secondary structure, and surface hydrophobicity were altered by both ultrasonic and heat treatments, as well as the kind of milk. Ultrasonic treatment of cow milk decreased α-helix content while increasing β-turn content. Under similar ultrasonic treatment, goat milk showed a considerable increase in β-sheet content, whereas β-turn and random coil contents decreased compared to control samples. Notably, the water-holding capacity of gels formed from all four types of milk increased significantly with the intensity of ultrasonic and heat treatments. The hardness of buffalo milk gels increased significantly after ultrasonic and thermal treatments, ranging from 63 °C for 30 min to 90 °C for 15 min, but the hardness of cow and goat milk gels increased in varying degrees compared to their control samples. Furthermore, gels from cow and goat milk had higher storage modulus (G') and loss modulus (G'') than those from buffalo and donkey milk, and changes in G' and G'' from the examined milk were altered by ultrasonic and heat treatments. These findings offer important insights into refining milk processing procedures to improve dairy product quality and usefulness.
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Affiliation(s)
- Wenjuan Hou
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, Shandong, China
| | - Xuli Ma
- China Certification & Inspection Group Shandong Co., Ltd, Qingdao 266109, Shandong, China
| | - Zhongna Yu
- Haidu.College, Qingdao Agricultural University, Laiyang 265200, Shandong, China
| | - Latiful Bari
- Food & Agriculture Research Division, Center for Advanced Research in Sciences, University of Dhaka, Dhaka 1000, Bangladesh
| | - Hongning Jiang
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, Shandong, China
| | - Qijing Du
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, Shandong, China
| | - Rongbo Fan
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, Shandong, China
| | - Jun Wang
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, Shandong, China
| | - Yongxin Yang
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, Shandong, China
| | - Rongwei Han
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, Shandong, China; Bathurst Future Agri-Tech Institute, Qingdao Agricultural University, Qingdao 266109, Shandong, China.
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Li T, Kambanis J, Sorenson TL, Sunde M, Shen Y. From Fundamental Amyloid Protein Self-Assembly to Development of Bioplastics. Biomacromolecules 2024; 25:5-23. [PMID: 38147506 PMCID: PMC10777412 DOI: 10.1021/acs.biomac.3c01129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 12/03/2023] [Accepted: 12/04/2023] [Indexed: 12/28/2023]
Abstract
Proteins can self-assemble into a range of nanostructures as a result of molecular interactions. Amyloid nanofibrils, as one of them, were first discovered with regard to the relevance of neurodegenerative diseases but now have been exploited as building blocks to generate multiscale materials with designed functions for versatile applications. This review interconnects the mechanism of amyloid fibrillation, the current approaches to synthesizing amyloid protein-based materials, and the application in bioplastic development. We focus on the fundamental structures of self-assembled amyloid fibrils and how external factors can affect protein aggregation to optimize the process. Protein self-assembly is essentially the autonomous congregation of smaller protein units into larger, organized structures. Since the properties of the self-assembly can be manipulated by changing intrinsic factors and external conditions, protein self-assembly serves as an excellent building block for bioplastic development. Building on these principles, general processing methods and pathways from raw protein sources to mature state materials are proposed, providing a guide for the development of large-scale production. Additionally, this review discusses the diverse properties of protein-based amyloid nanofibrils and how they can be utilized as bioplastics. The economic feasibility of the protein bioplastics is also compared to conventional plastics in large-scale production scenarios, supporting their potential as sustainable bioplastics for future applications.
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Affiliation(s)
- Tianchen Li
- School
of Chemical and Biomolecular Engineering and Sydney Nano, The University of Sydney, PNR Building, Darlington NSW 2008, Australia
| | - Jordan Kambanis
- School
of Chemical and Biomolecular Engineering and Sydney Nano, The University of Sydney, PNR Building, Darlington NSW 2008, Australia
| | - Timothy L. Sorenson
- School
of Chemical and Biomolecular Engineering and Sydney Nano, The University of Sydney, PNR Building, Darlington NSW 2008, Australia
| | - Margaret Sunde
- School
of Medical Sciences and Sydney Nano, The
University of Sydney, Sydney NSW 2006, Australia
| | - Yi Shen
- School
of Chemical and Biomolecular Engineering and Sydney Nano, The University of Sydney, PNR Building, Darlington NSW 2008, Australia
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Wang C, Zhao R, Liu J, Wang C. Towards understanding the interaction between ultrasound-pretreated β-lactoglobulin monomer with resveratrol. LUMINESCENCE 2023; 38:116-126. [PMID: 36563058 DOI: 10.1002/bio.4427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 11/06/2022] [Accepted: 12/21/2022] [Indexed: 12/24/2022]
Abstract
Increasingly, studies are using ultrasound to elevate the functional properties of proteins, so the interaction between phenolic compounds and proteins induced by ultrasound needs to be further understood. β-Lactoglobulin (β-LG) at pH 8.1, which exists mainly as monomers, was ultrasound treated at 20 kHz ultrasonic intensity and 30% amplitude for 0-5 min and subsequently interacted with resveratrol. Fluorescence data showed that ultrasound pretreatment improved binding constant (Ka ) from (1.62 ± 0.45) × 105 to (9.43 ± 0.55) × 105 M-1 and binding number from 1.13 ± 0.09 to 1.28 ± 0.11 in a static quenching mode. Fluorescence resonance energy transfer (FRET) analysis indicated that resveratrol bound to the surface hydrophobic pocket of native and treated proteins with no obvious changes in energy transfer efficiency (E) and Föster's distance (r). Thermodynamic parameters indicated that ultrasonication shifted the main driving force from the hydrophobic force for native and 1-min treated β-LG to van der Waals forces and hydrogen bonding for both 3-min and 5-min treated proteins. Ultrasonication and resveratrol addition generated significant differences in surface hydrophobicity and the surface charge of the protein (P < 0.05), whereas they had little influence on the secondary structure of β-LG. Compared with the native β-LG/resveratrol complex, ultrasound-treated protein complexes showed significantly stronger 2,2-azinobis(3-ethylbenzothiazoline-6-sulfonic acid (ABTS) scavenging capacity (P < 0.05), and kept relatively stable after 180-min irradiation. Data provided by this study can lead to a better comprehension of the structure and molecular events occurring during the complexing process between an ultrasound-pretreated protein with polyphenol.
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Affiliation(s)
- Cuina Wang
- Department of Food Science, College of Food Science and Engineering, Jilin University, Changchun, China
| | - Ru Zhao
- Department of Food Science, College of Food Science and Engineering, Jilin University, Changchun, China
| | - Jia Liu
- Department of Food Science, College of Food Science and Engineering, Jilin University, Changchun, China
| | - Ce Wang
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, China
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Nassar KS, Yacoub SS, Lv J, Ragab ES. Structural changes induced by pasteurisation and/or high-pressure treatment of skim caprine milk. Int Dairy J 2022. [DOI: 10.1016/j.idairyj.2022.105528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Wang YL, Yang JJ, Dai SC, Tong XH, Tian T, Liang CC, Li L, Wang H, Jiang LZ. Formation of soybean protein isolate-hawthorn flavonoids non-covalent complexes: Linking the physicochemical properties and emulsifying properties. ULTRASONICS SONOCHEMISTRY 2022; 84:105961. [PMID: 35245861 PMCID: PMC8892216 DOI: 10.1016/j.ultsonch.2022.105961] [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: 01/20/2022] [Revised: 02/18/2022] [Accepted: 02/23/2022] [Indexed: 05/04/2023]
Abstract
In recent years, more and more attention had been paid to the combination of proteins and flavonoids, and several flavonoids had been reported to improve the physicochemical and emulsifying properties of proteins. This study investigated the effects of ultrasonic treatment (450 W for 10 min, 20 min, and 30 min) on the physicochemical properties, antioxidant activity, and emulsifying properties of soy protein isolate (SPI) -hawthorn flavonoids (HF) non-covalent complexes. The results showed that the addition of HF to SPI and 20 min of ultrasound could reduce α-helix and random coil, increase β-sheet and β-turn, and enhance fluorescence quenching. In addition, it decreased the particle size, zeta potential, surface hydrophobicity, and turbidity to 88.43 or 95.27 nm, -28.80 mV, 1250.42, and 0.23, respectively. The protein solubility, free sulfhydryl group, antioxidant activity, emulsifying activity index, and emulsifying stability index all increased to 73.93%, 15.07 μmol/g, 71.00 or 41.91%, 9.81 m2/g, and 67.71%, respectively. Moreover, high-density small and low-flocculation droplets were formed. Therefore, the combined ultrasound treatment and addition of HF to SPI is a more effective method for protein modification compared to ultrasound treatment alone. It provides a theoretical basis for protein processing and application in the future.
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Affiliation(s)
- Yi-Lun Wang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Jin-Jie Yang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Shi-Cheng Dai
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Xiao-Hong Tong
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Tian Tian
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Chu-Chen Liang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Liang Li
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Huan Wang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China; Key Laboratory of Soybean Biology of Chinese Education Ministry, Harbin 150030, China.
| | - Lian-Zhou Jiang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China; College of Food Science and Engineering, Hainan University, Haikou 570228, China.
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Can ultrasound treatment replace conventional high temperature short time pasteurization of milk? A critical review. Int Dairy J 2022. [DOI: 10.1016/j.idairyj.2022.105375] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Zhang K, Wen Q, Li T, Wang Y, Zhang Y, Luo D. Comparative study of the effects of ultrasonic power on the structure and functional properties of gliadin in wheat and green wheat. J Food Sci 2022; 87:1020-1034. [PMID: 35150134 DOI: 10.1111/1750-3841.16050] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 12/06/2021] [Accepted: 12/22/2021] [Indexed: 11/30/2022]
Abstract
The impact of different ultrasonic power on the structure and functional properties of wheat gliadin (WG) and green wheat gliadin (GG) was investigated and compared. Ultrasound had no obvious effect on subunit composition and bands of WG and GG, and there were more small molecular weight bands in GG. The results of Fourier transform-infrared spectroscopy, intrinsic fluorescence spectroscopy, and scanning electron microscopy analyses demonstrated that ultrasonic treatment had a significant effect on the structure of WG and GG, inducing the transformation from order structure to disorder structure. The dispersion and uniformity were better at 400 and 300 W, respectively. Under proper ultrasonic treatment, the particle size of WG and GG was significantly reduced, and the free sulfhydryl groups and surface hydrophobicity were significantly increased (p < 0.05). Furthermore, the functional properties of WG and GG such as solubility, emulsification properties, water holding and oil holding properties, thermal stability, and digestibility were enhanced. The better functional properties of WG and GG were obtained at 400 and 300 W, respectively. These results indicated that ultrasonic treatment with appropriate power was a valuable method for improving functional characteristics of WG and GG. PRACTICAL APPLICATION: Ultrasonic treatment could cause structural changes of wheat gliadin (WG) and green wheat gliadin (GG), and their functional properties are improved under appropriate power. This study compares the effects of ultrasound on WG and GG, and the results will provide theoretical guidance for the development of GG in the food industry.
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Affiliation(s)
- Kangyi Zhang
- Center of Agricultural Products Processing, Henan Academy of Agricultural Sciences, Zhengzhou, China.,Henan International Joint Laboratory of Whole Grain Wheat Products Processing, Zhengzhou, China.,Henan Province Whole Grain Fresh Food Processing Engineering Technology Research Center, Zhengzhou, China
| | - Qingyu Wen
- Center of Agricultural Products Processing, Henan Academy of Agricultural Sciences, Zhengzhou, China.,Henan International Joint Laboratory of Whole Grain Wheat Products Processing, Zhengzhou, China.,Henan Province Whole Grain Fresh Food Processing Engineering Technology Research Center, Zhengzhou, China
| | - Tianqi Li
- Henan Ankang Food Science and Technology Research Institute, Zhengzhou, China
| | - Yufei Wang
- School of Chemical Engineering and Technology, North University of China, Taiyuan, China
| | - Yu Zhang
- Henan Ankang Food Science and Technology Research Institute, Zhengzhou, China
| | - Denglin Luo
- School of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China
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Applications of emerging processing technologies for quality and safety enhancement of non-bovine milk and milk products. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111845] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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