1
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Wang Z, Liu S, Yang W, Geng JT, Huang T, Wei H, Qiao Z, Jia R. Ovalbumin/sodium alginate Pickering emulsion: Structural characteristics and its contribution to enhancing the gel properties of Hairtail (Trichiurus haumela) surimi. Food Chem 2024; 461:140893. [PMID: 39178539 DOI: 10.1016/j.foodchem.2024.140893] [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: 06/10/2024] [Revised: 08/11/2024] [Accepted: 08/14/2024] [Indexed: 08/26/2024]
Abstract
In this study, ovalbumin (OV) and sodium alginate (SA), two macromolecular complexes, were coagulated into the emulsifier (OV/SA), which stabilized soybean oil by electrostatic interaction, hydrophobic interactions, and hydrogen bonding. The structure of OV/SA and properties of OV/SA Pickering emulsion were investigated. Additionally, the effect of emulsions on the gel and protein properties of hairtail surimi was studied. The results revealed that with the increasing concentration of OV/SA, the particle size and zeta potential value (negative value) of the emulsion initially decreased and then increased, while the rheological properties gradually improved. Compared with the surimi gel directly supplemented with soybean oil, the addition of emulsion enhanced gel strength, whiteness, water holding capacity, and hydrophobic interactions, resulting in a more stable gel network structure. In summary, incorporating emulsion into surimi at the same lipid content not only maintained its gel properties but also improved its color and compensated for lipid loss.
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Affiliation(s)
- Zhufen Wang
- College of Food Science and Technology, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Siqi Liu
- College of Food Science and Technology, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Wenge Yang
- College of Food Science and Technology, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Jie-Ting Geng
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7, Konan, Minato-ku, Tokyo 108-8477, Japan
| | - Tao Huang
- College of Food Science and Technology, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Huamao Wei
- College of Food Science and Technology, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Zhaohui Qiao
- College of Food Science and Technology, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Ru Jia
- College of Food Science and Technology, Ningbo University, Ningbo, Zhejiang, 315211, China.
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2
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Ni X, Chen C, Li R, Liu Q, Duan C, Wang X, Xu M. Effects of ultrasonic treatment on the structure and functional characteristics of myofibrillar proteins from black soldier fly. Int J Biol Macromol 2024; 278:135057. [PMID: 39187097 DOI: 10.1016/j.ijbiomac.2024.135057] [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: 07/07/2024] [Revised: 08/22/2024] [Accepted: 08/23/2024] [Indexed: 08/28/2024]
Abstract
In the process of utilizing black soldier fly larvae (BSFL) lipids to develop biodiesel, many by-products will be produced, especially the underutilized protein components. These proteins can be recycled through appropriate treatment and technology, such as the preparation of feed, biofertilizers or other kinds of bio-products, so as to achieve the efficient use of resources and reduce the generation of waste. Myofibrillar protein (MP), as the most important component of protein, is highly susceptible to environmental influences, leading to oxidation and deterioration, which ultimately affects the overall performance of the protein and product quality. For it to be high-quality and fully exploited, in this study, black soldier fly myofibrillar protein (BMP) was extracted and primarily subjected to ultrasonic treatment to investigate the impact of varying ultrasonic powers (300, 500, 700, 900 W) on the structure and functional properties of BMP. The results indicated that as ultrasonic power increased, the sulfhydryl content and turbidity of BMP decreased, leading to a notable improvement in the stability of the protein emulsion system. SEM images corroborated the changes in the microstructure of BMP. Moreover, the enhancement of ultrasound power induced modifications in the intrinsic fluorescence spectra and FTIR spectra of BMP. Additionally, ultrasonic treatment resulted in an increase in carbonyl content and emulsifying activity of BMP, with both peaking at 500 W. It was noteworthy that BMP treated with ultrasound exhibited stronger digestibility compared to the untreated. In summary, 500 W was determined as the optimal ultrasound parameter for this study. Overall, ultrasound modification of insect MPs emerges as a dependable technique capable of altering the structure and functionality of BMP.
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Affiliation(s)
- Xiangxiang Ni
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Chengcheng Chen
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Ruixi Li
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Qiwei Liu
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Chaoyi Duan
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Xiu Wang
- School of Advanced Materials & Engineering, Jiaxing Nanhu University, Jiaxing 314001, China.
| | - Mingfeng Xu
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.
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3
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Gao Q, Yang YQ, Nie HN, Wang BQ, Peng X, Wang N, Li JK, Rao JJ, Xue YL. Investigating the impact of ultrasound on the structural, physicochemical, and emulsifying characteristics of Dioscorin: Insights from experimental data and molecular dynamics simulation. Food Chem 2024; 453:139581. [PMID: 38754354 DOI: 10.1016/j.foodchem.2024.139581] [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: 03/12/2024] [Revised: 04/28/2024] [Accepted: 05/05/2024] [Indexed: 05/18/2024]
Abstract
This study investigated the impact of ultrasound treatment on dioscorin, the primary storage protein found in yam tubers. Three key factors, namely ultrasound power, duration, and frequency, were focused on. The research revealed that ultrasound-induced cavitation effects disrupted non-covalent bonds, resulting in a reduction in α-helix and β-sheet contents, decreased thermal stability, and a decrease in the apparent hydrodynamic diameter (Dh) of dioscorin. Additionally, previously hidden amino acid groups within the molecule became exposed on its surface, resulting in increased surface hydrophobicity (Ho) and zeta-potential. Under specific ultrasound conditions (200 W, 25 kHz, 30 min), Dh decreased while Ho increased, facilitating the adsorption of dioscorin molecules onto the oil-water interface. Molecular dynamics (MD) simulations showed that at lower frequencies and pressures, the structural flexibility of dioscorin's main chain atoms increased, leading to more significant fluctuations between amino acid residues. This transformation improved dioscorin's emulsifying properties and its oil-water interface affinity.
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Affiliation(s)
- Qi Gao
- College of Light Industry, Liaoning University, Shenyang 110036, China; Department of Regional Economic Development, Party School of Liaoning Provincial Party Committee, Shenyang 110161, China
| | - Yu-Qi Yang
- College of Light Industry, Liaoning University, Shenyang 110036, China
| | - Hao-Nan Nie
- College of Light Industry, Liaoning University, Shenyang 110036, China
| | - Bing-Qing Wang
- College of Light Industry, Liaoning University, Shenyang 110036, China
| | - Xue Peng
- College of Light Industry, Liaoning University, Shenyang 110036, China
| | - Ning Wang
- College of Light Industry, Liaoning University, Shenyang 110036, China
| | - Jiang-Kuo Li
- Tianjin Key Laboratory of Postharvest Physiology and Storage of Agricultural Products, National Engineering and Technology Research Center for Preservation of Agricultural Products, Tianjin 300384, China
| | - Jia-Jia Rao
- Department of Plant Sciences, North Dakota State University, Fargo, ND 58108, USA
| | - You-Lin Xue
- College of Light Industry, Liaoning University, Shenyang 110036, China.
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4
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Lai XJ, Chen JQ, Nie J, Guo PF, Faisal Manzoor M, Huang YY, Li J, Lin SY, Zeng XA, Wang R. Enhancement of extraction efficiency and functional properties of chickpea protein isolate using pulsed electric field combined with ultrasound treatment. ULTRASONICS SONOCHEMISTRY 2024; 111:107089. [PMID: 39353337 DOI: 10.1016/j.ultsonch.2024.107089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2024] [Revised: 09/24/2024] [Accepted: 09/27/2024] [Indexed: 10/04/2024]
Abstract
Chickpea protein isolate (CPI) is a promising dietary protein with the advantages of low allergenicity, easy digestion and balanced composition of essential amino acids. However, due to the thick skin of chickpeas, the extraction of CPI is challenging, resulting in lower efficiency of the alkaline extraction-isoelectric precipitation (AE-IEP) method. Therefore, the present study investigated the effect of pulsed electric field combined with ultrasound (PEF-US) treatment on the extraction efficiency of CPI and the functional properties was characterized. Parameter optimization was carried out using response surface methodology (RSM), with the following optimized conditions: pulse duration of 87 s, electric field intensity of 0.9 kV/cm, ultrasonic time of 15 min, and ultrasonic power of 325 W. Under the optimized conditions, the yield of CPI after combined (PEF-US) treatment was 13.52 ± 0.13 %, which was a 47.28 % improvement over the AE-IEP method. This yield was better than that obtained with either individual PEF or US treatment. Additionally, the functional properties (solubility, emulsification, and foaming) of CPI were significantly enhanced compared to AE-IEP. However, the stability of emulsification and foaming did not show significant differences among the four methods. The PEF-US method efficiently extracts CPI with excellent functional properties, enabling the production of proteins as desired functional additives in the food industry.
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Affiliation(s)
- Xin-Jue Lai
- School of Food Science and Engineering, Guangdong Provincial Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan 528225, China
| | - Jian-Quan Chen
- School of Food Science and Engineering, Guangdong Provincial Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan 528225, China
| | - Jing Nie
- School of Food Science and Engineering, Guangdong Provincial Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan 528225, China
| | - Pei-Feng Guo
- School of Food Science and Engineering, Guangdong Provincial Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan 528225, China
| | - Muhammad Faisal Manzoor
- School of Food Science and Engineering, Guangdong Provincial Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan 528225, China
| | - Yan-Yan Huang
- School of Food Science and Engineering, Guangdong Provincial Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan 528225, China
| | - Jian Li
- School of Food Science and Engineering, Guangdong Provincial Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan 528225, China; School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Song-Yi Lin
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Xin-An Zeng
- School of Food Science and Engineering, Guangdong Provincial Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan 528225, China; School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Rui Wang
- School of Food Science and Engineering, Guangdong Provincial Key Laboratory of Intelligent Food Manufacturing, Foshan University, Foshan 528225, China.
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5
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Wang X, Ni X, Duan C, Li R, Jiang X, Xu M, Yu R. The Effect of Ultrasound Treatment on the Structural and Functional Properties of Tenebrio molitor Myofibrillar Protein. Foods 2024; 13:2817. [PMID: 39272582 PMCID: PMC11395043 DOI: 10.3390/foods13172817] [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: 07/25/2024] [Revised: 08/30/2024] [Accepted: 09/03/2024] [Indexed: 09/15/2024] Open
Abstract
The objective of this study was to explore the impacts of various ultrasonic powers (0, 300, 500, 700, and 900 W) on the structure and functional attributes of the myofibrillar protein (MP) of Tenebrio molitor. As the ultrasonic intensity escalated, the extraction efficiency and yield of the MP rose, while the particle size and turbidity decreased correspondingly. The reduction in sulfhydryl group content and the increase in carbonyl group content both suggested that ultrasonic treatment promoted the oxidation of the MP to a certain extent, which was conducive to the formation of a denser and more stable gel network structure. This was also affirmed by SEM images. Additionally, the findings of intrinsic fluorescence and FTIR indicated that high-intensity ultrasound significantly altered the secondary structure of the protein. The unfolding of the MP exposed more amino acid residues, the α-helix decreased, and the β-helix improved, thereby resulting in a looser and more flexible conformation. Along with the structural alteration, the surface hydrophobicity and emulsification properties were also significantly enhanced. Besides that, SDS-PAGE demonstrated that the MP of T. molitor was primarily composed of myosin heavy chain (MHC), actin, myosin light chain (MLC), paramyosin, and tropomyosin. The aforementioned results confirmed that ultrasonic treatment could, to a certain extent, enhance the structure and function of mealworm MP, thereby providing a theoretical reference for the utilization of edible insect proteins in the future, deep-processing proteins produced by T. molitor, and the development of new technologies.
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Affiliation(s)
- Xiu Wang
- School of Advanced Materials Engineering, Jiaxing Nanhu University, Jiaxing 314001, China
| | - Xiangxiang Ni
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Chaoyi Duan
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Ruixi Li
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Xiao'e Jiang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Mingfeng Xu
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Rongrong Yu
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
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6
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Beitia E, Mavros G, Guo X, Middendorf D, Juadjur A, Heinz V, Valdramidis V, Aganovic K. Manothermosonication - A potential alternative to thermal pasteurisation of liquid whole egg: Comparison of physico-chemical attributes. Food Chem 2024; 463:141102. [PMID: 39278147 DOI: 10.1016/j.foodchem.2024.141102] [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: 06/04/2024] [Revised: 08/21/2024] [Accepted: 08/31/2024] [Indexed: 09/17/2024]
Abstract
Liquid egg products are typically exposed to a defined thermal load to achieve the required safety level, under which their functional properties can be adversely affected. In this study, manothermosonication (MTS) (132 μm, 300 kPa) was investigated as alternative preservation for liquid whole egg (LWE) compared to thermal pasteurisation (60 °C, 3.5 min), assessing results against untreated (fresh) LWE in terms of selected physico-chemical properties. Results showed that MTS resulted in improved LWE foaming properties, increasing foam capacity by a 3.2-fold factor compared to thermal treatment. Emulsion stability was also enhanced after MTS, exhibiting smaller droplet size, and a higher elasticity of gels was obtained. Regarding the protein properties, favourable protein changes (protein unfolding) were identified for MTS through direct (asymmetric flow field flow fractionation) and indirect (surface hydrophobicity and sulfhydryl group content) measurements. In addition, an increase in protein solubility of 11.4 % was observed in MTS compared to thermal treatment.
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Affiliation(s)
- Enrique Beitia
- German Institute of Food Technologies (DIL e.V.), Prof.-von-Klitzing-Str. 7, 49610 Quakenbrück, Germany; Department of Chemistry, National and Kapodistrian University of Athens, 15771 Athens, Greece.
| | - Grigorios Mavros
- Department of Chemistry, National and Kapodistrian University of Athens, 15771 Athens, Greece.
| | - Xiaoai Guo
- German Institute of Food Technologies (DIL e.V.), Prof.-von-Klitzing-Str. 7, 49610 Quakenbrück, Germany.
| | - Dana Middendorf
- German Institute of Food Technologies (DIL e.V.), Prof.-von-Klitzing-Str. 7, 49610 Quakenbrück, Germany.
| | - Andreas Juadjur
- German Institute of Food Technologies (DIL e.V.), Prof.-von-Klitzing-Str. 7, 49610 Quakenbrück, Germany.
| | - Volker Heinz
- German Institute of Food Technologies (DIL e.V.), Prof.-von-Klitzing-Str. 7, 49610 Quakenbrück, Germany.
| | - Vasilis Valdramidis
- Department of Chemistry, National and Kapodistrian University of Athens, 15771 Athens, Greece.
| | - Kemal Aganovic
- German Institute of Food Technologies (DIL e.V.), Prof.-von-Klitzing-Str. 7, 49610 Quakenbrück, Germany; Institute of Food Quality and Food Safety, University of Veterinary Medicine Hannover, Foundation, Bischofsholer Damm 15, 30173 Hannover, Germany.
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7
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Wang J, Wu W, Yang J, Zhang X, Wu Q, Wang C. Distinctive activation of β-galactosidase by carboxymethylated β-glucan in vitro and mechanism study: Critical role of hydrophobic and electrostatic interactions. Food Chem 2024; 448:139082. [PMID: 38537544 DOI: 10.1016/j.foodchem.2024.139082] [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: 06/03/2023] [Revised: 10/31/2023] [Accepted: 03/18/2024] [Indexed: 04/24/2024]
Abstract
β-galactosidase (lactase) is commercially important as a dietary supplement to alleviate the symptoms of lactose intolerance. This work investigated a unique activation of CMP (carboxymethylated (1 → 3)-β-d-glucan) on lactase and its mechanism by comparing it with carboxymethyl chitosan (CMCS), an inhibitor of lactase. The results illustrated that the secondary and tertiary structures of lactase were altered and its active sites exposed after complexation with CMP, and dissociation of lactase aggregates was also observed. These changes favored better accessibility of the substrate to the active sites of lactase, resulting in a maximum increase of 60.5 % in lactase activity. Furthermore, the hydrophobic and electrostatic interactions with lactase caused by the carboxymethyl group of CMP were shown to be crucial for its activation ability. Thus, the improvement of lactase activity and stability by CMP shown here is important for the development of new products in the food and pharmaceutical industries.
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Affiliation(s)
- Jingyi Wang
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China; College of Bioengineering and Food, Hubei University of Technology, Wuhan 430068, China
| | - Wenjuan Wu
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China; College of Bioengineering and Food, Hubei University of Technology, Wuhan 430068, China
| | - Jun Yang
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China; College of Bioengineering and Food, Hubei University of Technology, Wuhan 430068, China
| | - Xue Zhang
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China; College of Bioengineering and Food, Hubei University of Technology, Wuhan 430068, China
| | - Qian Wu
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China; College of Bioengineering and Food, Hubei University of Technology, Wuhan 430068, China
| | - Chao Wang
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China; College of Bioengineering and Food, Hubei University of Technology, Wuhan 430068, China.
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8
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Tian L, You X, Zhang S, Zhu Z, Yi J, Jin G. Enhancing Functional Properties and Protein Structure of Almond Protein Isolate Using High-Power Ultrasound Treatment. Molecules 2024; 29:3590. [PMID: 39124994 PMCID: PMC11313724 DOI: 10.3390/molecules29153590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2024] [Revised: 07/15/2024] [Accepted: 07/26/2024] [Indexed: 08/12/2024] Open
Abstract
The suitability of a given protein for use in food products depends heavily on characteristics such as foaming capacity, emulsifiability, and solubility, all of which are affected by the protein structure. Notably, protein structure, and thus characteristics related to food applications, can be altered by treatment with high-power ultrasound (HUS). Almonds are a promising source of high-quality vegetable protein for food products, but their physicochemical and functional properties remain largely unexplored, limiting their current applications in foods. Here, we tested the use of HUS on almond protein isolate (API) to determine the effects of this treatment on API functional properties. Aqueous almond protein suspensions were sonicated at varying power levels (200, 400, or 600 W) for two durations (15 or 30 min). The molecular structure, protein microstructure, solubility, and emulsifying and foaming properties of the resulting samples were then measured. The results showed that HUS treatment did not break API covalent bonds, but there were notable changes in the secondary protein structure composition, with the treated proteins showing a decrease in α-helices and β-turns, and an increase in random coil structures as the result of protein unfolding. HUS treatment also increased the number of surface free sulfhydryl groups and decreased the intrinsic fluorescence intensity, indicating that the treatment also led to alterations in the tertiary protein structures. The particle size in aqueous suspensions was decreased in treated samples, indicating that HUS caused the dissociation of API aggregates. Finally, treated samples showed increased water solubility, emulsifying activity, emulsifying stability, foaming capacity, and foaming stability. This study demonstrated that HUS altered key physicochemical characteristics of API, improving critical functional properties including solubility and foaming and emulsifying capacities. This study also validated HUS as a safe and environmentally responsible tool for enhancing desirable functional characteristics of almond proteins, promoting their use in the food industry as a high-quality plant-based protein.
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Affiliation(s)
- Li Tian
- College of Biology and Food Engineering, Anyang Institute of Technology, Anyang 455000, China; (L.T.); (X.Y.); (S.Z.)
| | - Xinyong You
- College of Biology and Food Engineering, Anyang Institute of Technology, Anyang 455000, China; (L.T.); (X.Y.); (S.Z.)
| | - Shulin Zhang
- College of Biology and Food Engineering, Anyang Institute of Technology, Anyang 455000, China; (L.T.); (X.Y.); (S.Z.)
- College of Horticulture and Landscape Architecture, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Zhenbao Zhu
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China;
| | - Jianhua Yi
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China;
| | - Gang Jin
- Guangxi Key Laboratory of Quality and Safety Control for Subtropical Fruits, Guangxi Subtropical Crops Research Institute, Nanning 530001, China
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9
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Santoso T, Ho TM, Vinothsankar G, Jouppila K, Chen T, Owens A, Lazarjani MP, Farouk MM, Colgrave ML, Otter D, Kam R, Le TT. Effects of Laccase and Transglutaminase on the Physicochemical and Functional Properties of Hybrid Lupin and Whey Protein Powder. Foods 2024; 13:2090. [PMID: 38998597 PMCID: PMC11241515 DOI: 10.3390/foods13132090] [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: 05/19/2024] [Revised: 06/18/2024] [Accepted: 06/25/2024] [Indexed: 07/14/2024] Open
Abstract
Plant-based protein is considered a sustainable protein source and has increased in demand recently. However, products containing plant-based proteins require further modification to achieve the desired functionalities akin to those present in animal protein products. This study aimed to investigate the effects of enzymes as cross-linking reagents on the physicochemical and functional properties of hybrid plant- and animal-based proteins in which lupin and whey proteins were chosen as representatives, respectively. They were hybridised through enzymatic cross-linking using two laccases (laccase R, derived from Rhus vernicifera and laccase T, derived from Trametes versicolor) and transglutaminase (TG). The cross-linking experiments were conducted by mixing aqueous solutions of lupin flour and whey protein concentrate powder in a ratio of 1:1 of protein content under the conditions of pH 7, 40 °C for 20 h and in the presence of laccase T, laccase R, or TG. The cross-linked mixtures were freeze-dried, and the powders obtained were assessed for their cross-linking pattern, colour, charge distribution (ζ-potential), particle size, thermal stability, morphology, solubility, foaming and emulsifying properties, and total amino acid content. The findings showed that cross-linking with laccase R significantly improved the protein solubility, emulsion stability and foaming ability of the mixture, whereas these functionalities were lower in the TG-treated mixture due to extensive cross-linking. Furthermore, the mixture treated with laccase T turned brownish in colour and showed a decrease in total amino acid content which could be due to the enzyme's oxidative cross-linking mechanism. Also, the occurrence of cross-linking in the lupin and whey mixture was indicated by changes in other investigated parameters such as particle size, ζ-potential, etc., as compared to the control samples. The obtained results suggested that enzymatic cross-linking, depending on the type of enzyme used, could impact the physicochemical and functional properties of hybrid plant- and animal-based proteins, potentially influencing their applications in food.
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Affiliation(s)
- Teguh Santoso
- AUT Centre for Future Foods, Auckland University of Technology, Auckland 1010, New Zealand
- School of Science, Auckland University of Technology, Auckland 1010, New Zealand
| | - Thao M. Ho
- Department of Food and Nutrition, University of Helsinki, P.O. Box 66, 00014 Helsinki, Finland
- Helsinki Institute of Sustainability Science (HELSUS), University of Helsinki, P.O. Box 65, 00014 Helsinki, Finland
| | - Geerththana Vinothsankar
- AUT Centre for Future Foods, Auckland University of Technology, Auckland 1010, New Zealand
- School of Science, Auckland University of Technology, Auckland 1010, New Zealand
| | - Kirsi Jouppila
- Department of Food and Nutrition, University of Helsinki, P.O. Box 66, 00014 Helsinki, Finland
| | - Tony Chen
- AUT Centre for Future Foods, Auckland University of Technology, Auckland 1010, New Zealand
- School of Science, Auckland University of Technology, Auckland 1010, New Zealand
| | - Adrian Owens
- AUT Centre for Future Foods, Auckland University of Technology, Auckland 1010, New Zealand
- School of Science, Auckland University of Technology, Auckland 1010, New Zealand
| | | | - Mustafa M. Farouk
- Food Technology and Processing, Smart Foods & Bioproducts, AgResearch Ltd., Grasslands Research Centre, Palmerston North 4440, New Zealand
| | - Michelle L. Colgrave
- CSIRO Agriculture and Food, 306 Carmody Rd., St. Lucia, QLD 4067, Australia
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, School of Science, Edith Cowan University, Joondalup, WA 6027, Australia
| | - Don Otter
- DEO Dairy Consulting, Marton 4787, New Zealand
| | - Rothman Kam
- AUT Centre for Future Foods, Auckland University of Technology, Auckland 1010, New Zealand
- School of Science, Auckland University of Technology, Auckland 1010, New Zealand
| | - Thao T. Le
- AUT Centre for Future Foods, Auckland University of Technology, Auckland 1010, New Zealand
- School of Science, Auckland University of Technology, Auckland 1010, New Zealand
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10
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Mastani S, Bahmanyar F, Shojaee-Aliabadi S, Mirmoghtadaie L, Hosseini SM. Effect of dual physical modifications on structural and functional properties of gluten and whey protein: Ultrasound and microwave. FOOD SCI TECHNOL INT 2024; 30:397-406. [PMID: 37345303 DOI: 10.1177/10820132231182099] [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] [Indexed: 06/23/2023]
Abstract
In this study, the effect of dual modification using ultrasound (100 and 300 W for 5, 10, and 15 min) and microwave (600 W for 45 s) treatments on functional properties of wheat gluten protein (WGP) and whey protein concentrate (WPC), as two by-products of food industry with different primary functional properties, was investigated. Ultrasound treatment did not affect the solubility of both proteins significantly but the emulsion and foam properties were increased up to 10 min. Nevertheless, microwave treatment after ultrasound caused a significant decrease in the solubility of both proteins. However, the foam stability of the WPC and WGP was not significantly modified after microwave treatment. The obtained results showed a more positive effect of ultrasound at 100 W for 10 min than other ultrasound treatments on the functional and structural properties of both proteins. The zeta potential of both proteins was decreased after dual physical modifications, but thermal stability of proteins was improved after microwave treatment.
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Affiliation(s)
- Sayeh Mastani
- Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fereshte Bahmanyar
- Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saeedeh Shojaee-Aliabadi
- Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Leila Mirmoghtadaie
- Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyede Marzieh Hosseini
- Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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11
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Yang Y, Cheng Y, Cheng L. The emergence of cancer sono-immunotherapy. Trends Immunol 2024; 45:549-563. [PMID: 38910097 DOI: 10.1016/j.it.2024.06.001] [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: 04/21/2024] [Revised: 06/03/2024] [Accepted: 06/03/2024] [Indexed: 06/25/2024]
Abstract
Owing to its remarkable ease of use, ultrasound has recently been explored for stimulating or amplifying immune responses during cancer therapy, termed 'sono-immunotherapy'. Ultrasound can cause immunogenic cell death in cancer cells via thermal and nonthermal effects to regulate the tumor microenvironment, thereby priming anticancer immunity; by integrating well-designed biomaterials, novel sono-immunotherapy approaches with augmented efficacy can also be developed. Here, we review the advances in sono-immunotherapy for cancer treatment and summarize existing limitations along with potential trends. We offer emerging insights into this realm, which might prompt breakthroughs and expand its potential applications to other diseases.
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Affiliation(s)
- Yuqi Yang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Soochow University, Suzhou, 215123, China; Monash Suzhou Research Institute, Monash University, Suzhou, 215000, China; Department of Materials Science and Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Yuan Cheng
- Monash Suzhou Research Institute, Monash University, Suzhou, 215000, China; Department of Materials Science and Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Liang Cheng
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Soochow University, Suzhou, 215123, China.
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12
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Xu Z, Han S, Cui N, Liu H, Yan X, Chen H, Wu J, Tan Z, Du M, Li T. Identification and characterization of a calcium-binding peptide from salmon bone for the targeted inhibition of α-amylase in digestion. Food Chem X 2024; 22:101352. [PMID: 38601950 PMCID: PMC11004067 DOI: 10.1016/j.fochx.2024.101352] [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: 01/24/2024] [Revised: 03/23/2024] [Accepted: 04/02/2024] [Indexed: 04/12/2024] Open
Abstract
α-Amylase, essential for carbohydrate digestion, relies on calcium (Ca) for its structural integrity and enzymatic activity. This study explored the inhibitory effect of salmon bone peptides on α-amylase activity through their interaction with the enzyme's Ca-binding sites. Among the various salmon bone hydrolysates, salmon bone trypsin hydrolysate (SBTH) exhibited the highest α-amylase inhibition. The peptide IEELEEELEAER (PIE), with a sequence of Ile-Glu-Glu-Leu-Glu-Glu-Glu-Glu-Leu-Glu-Ala-Glu-Arg from SBTH, was found to specifically target the Ca-binding sites in α-amylase, interacting with key residues such as Asp206, Trp203, His201, etc. Additionally, cellular experiments using 3 T3-L1 preadipocytes indicated PIE's capability to suppress adipocyte differentiation, and decreases in intracellular triglycerides, total cholesterol, and lipid accumulation. In vivo studies also showed a significant reduction in weight gain in the group treated with PIE(6.61%)compared with the control group (33.65%). These findings suggest PIE is an effective α-amylase inhibitor, showing promise for obesity treatment.
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Affiliation(s)
- Zhe Xu
- College of Life Sciences, Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Ministry of Education, Dalian 116600, China
- Institute of Bast Fiber Crops & Center of Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G2P5, Canada
| | - Shiying Han
- College of Life Sciences, Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Ministry of Education, Dalian 116600, China
| | - Na Cui
- Department of Food and Chemical Engineering, Liuzhou Institute of Technology, Liuzhou, Guangxi 545616, China
| | - Hanxiong Liu
- School of Food Science and Technology, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Xu Yan
- College of Life Sciences, Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Ministry of Education, Dalian 116600, China
| | - Hongrui Chen
- School of Food and Bioengineering, Food Microbiology Key Laboratory of Sichuan Province, Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Xihua University, Chengdu, Sichuan 611130, China
| | - Jianping Wu
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G2P5, Canada
| | - Zhijian Tan
- Institute of Bast Fiber Crops & Center of Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China
| | - Ming Du
- School of Food Science and Technology, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Tingting Li
- College of Life Sciences, Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Ministry of Education, Dalian 116600, China
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Li J, Wang Z, Xiao N, Guo S, Ai M. Endogenous reactive oxygen species (ROS)-driven protein oxidation regulates emulsifying and foaming properties of liquid egg white. Int J Biol Macromol 2024; 268:131843. [PMID: 38663701 DOI: 10.1016/j.ijbiomac.2024.131843] [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: 03/18/2024] [Revised: 04/21/2024] [Accepted: 04/23/2024] [Indexed: 04/30/2024]
Abstract
Highly oxidative reactive oxygen species (ROS) attack protein structure and regulate its functional properties. The molecular structures and functional characteristics of egg white (EW) protein (EWP) during 28 d of aerobic or anaerobic storage were explored to investigate the "self-driven" oxidation mechanism of liquid EW mediated by endogenous ROS signaling. Results revealed a significant increase in turbidity during the storage process, accompanied by protein crosslinking aggregation. The ROS yield initially increased and then decreased, leading to a substantial increase in carbonyl groups and tyrosine content. The free sulfhydryl groups and molecular flexibility in EWP exhibited synchronicity with ROS production, reflecting the self-repairing ability of cysteine residues in EWP. Fourier-transform infrared spectroscopy indicated stable crosslinking between EWP molecules in the early oxidation stage. However, continuous ROS attacks accelerated EWP degradation. Compared with the control group, the aerobic-stimulated EWP showed a significant decrease in foaming capacity from 30.5 % to 9.6 %, whereas the anaerobic-stimulated EWP maintained normal levels. The emulsification performance exhibited an increasing-then-decreasing trend. In conclusion, ROS acted as the predominant factor causing deterioration of liquid EW, triggering moderate oxidation that enhanced the superior foaming and emulsifying properties of EWP, and excessive oxidation diminished the functional characteristics by affecting the molecular structure.
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Affiliation(s)
- Jiayi Li
- The National Center for Precision Machining and Safety of Livestock and Poultry Products Joint Engineering Research Center, College of Food Science, South China Agricultural University, 510642, China
| | - Ziyuan Wang
- The National Center for Precision Machining and Safety of Livestock and Poultry Products Joint Engineering Research Center, College of Food Science, South China Agricultural University, 510642, China
| | - Nan Xiao
- The National Center for Precision Machining and Safety of Livestock and Poultry Products Joint Engineering Research Center, College of Food Science, South China Agricultural University, 510642, China
| | - Shanguang Guo
- The National Center for Precision Machining and Safety of Livestock and Poultry Products Joint Engineering Research Center, College of Food Science, South China Agricultural University, 510642, China
| | - Minmin Ai
- The National Center for Precision Machining and Safety of Livestock and Poultry Products Joint Engineering Research Center, College of Food Science, South China Agricultural University, 510642, China; Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China.
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14
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Bing SJ, Liu FF, Li YQ, Sun GJ, Wang CY, Liang Y, Zhao XZ, Hua DL, Chen L, Mo HZ. The structural characteristics and physicochemical properties of mung bean protein hydrolysate of protamex induced by ultrasound. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:3665-3675. [PMID: 38158728 DOI: 10.1002/jsfa.13251] [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: 07/19/2023] [Revised: 12/19/2023] [Accepted: 12/30/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND The limited physicochemical properties (such as low foaming and emulsifying capacity) of mung bean protein hydrolysate restrict its application in the food industry. Ultrasound treatment could change the structures of protein hydrolysate to accordingly affect its physicochemical properties. The aim of this study was to investigate the effects of ultrasound treatment on the structural and physicochemical properties of mung bean protein hydrolysate of protamex (MBHP). The structural characteristics of MBHP were evaluated using tricine sodium dodecylsulfate-polyacrylamide gel electrophoresis, laser scattering, fluorescence spectrometry, etc. Solubility, fat absorption capacity and foaming, emulsifying and thermal properties were determined to characterize the physicochemical properties of MBHP. RESULTS MBHP and ultrasonicated-MBHPs (UT-MBHPs) all contained five main bands of 25.8, 12.1, 5.6, 4.8 and 3.9 kDa, illustrating that ultrasound did not change the subunits of MBHP. Ultrasound treatment increased the contents of α-helix, β-sheet and random coil and enhanced the intrinsic fluorescence intensity of MBHP, but decreased the content of β-turn, which demonstrated that ultrasound modified the secondary and tertiary structures of MBHP. UT-MBHPs exhibited higher solubility, foaming capacity and emulsifying properties than MBHP, among which MBHP-330 W had the highest solubility (97.32%), foaming capacity (200%), emulsification activity index (306.96 m2 g-1 ) and emulsion stability index (94.80%) at pH 9.0. CONCLUSION Ultrasound treatment enhanced the physicochemical properties of MBHP, which could broaden its application as a vital ingredient in the food industry. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Shu-Jing Bing
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Fen-Fang Liu
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Ying-Qiu Li
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Gui-Jin Sun
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Chen-Ying Wang
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Yan Liang
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Xiang-Zhong Zhao
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Dong-Liang Hua
- School of Energy and Power Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Lei Chen
- School of Energy and Power Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Hai-Zhen Mo
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, China
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15
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Liu L, Miao Y, Hu C, Gao L, He W, Chu H, Zhang T, Li C, Guo W. Effect of ultrasonic frequency on the structural and functional properties of pea protein isolation. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:1431-1440. [PMID: 37800391 DOI: 10.1002/jsfa.13025] [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: 05/19/2023] [Revised: 09/19/2023] [Accepted: 09/30/2023] [Indexed: 10/07/2023]
Abstract
BACKGROUND Pea protein, as a by-product of peas (Pisum sativum L.), is rich in a variety of essential amino acids that can meet the body's protein needs and is a valuable source of protein. Since the function of pea protein is closely related to its structure, pea protein has been subjected to different modifications in recent years to improve its application in food and to develop new products. RESULTS The effects of sonication frequency (primary and secondary time) on pea protein isolate's (PPI's) structural and functional properties were investigated. Sodium dodecyl sulfate polyacrylamide gel electrophoresis demonstrated that different sonication frequencies at the same power (600 W) treatment had no effect on PPI's molecular weight. Fourier-transform infrared spectroscopy revealed that treatment at different sonication frequencies caused secondary structural changes in PPI. The particle size distribution, foaming, stability, surface hydrophobicity, emulsification, and oxidation resistance of PPI were improved after primary and secondary sonication, but secondary sonication was not more effective than primary sonication for an extended period of time. CONCLUSION Overall, ultrasound is able to improve the structural and functional properties of pea proteins within a suitable range. It provides a theoretical basis for elucidating the modification of the structure and function of plant proteins by ultrasound and lays the foundation for the development of plant proteins in food applications as well as development. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Libo Liu
- Key Laboratory of Dairy Science, College of Food Science, Northeast Agricultural University, Harbin, China
| | - Yu Miao
- Key Laboratory of Dairy Science, College of Food Science, Northeast Agricultural University, Harbin, China
| | - Chengwen Hu
- Key Laboratory of Dairy Science, College of Food Science, Northeast Agricultural University, Harbin, China
| | - Lu Gao
- Key Laboratory of Dairy Science, College of Food Science, Northeast Agricultural University, Harbin, China
| | - Weijia He
- Danisco (China) Co., Ltd, Kunshan, China
| | - Hong Chu
- Heilongjiang Green Food Science Research Institute, Harbin, China
| | - Tong Zhang
- Heilongjiang Green Food Science Research Institute, Harbin, China
| | - Chun Li
- Key Laboratory of Dairy Science, College of Food Science, Northeast Agricultural University, Harbin, China
- Northeast Agricultural University, Harbin, China
| | - Wenkui Guo
- Key Laboratory of Dairy Science, College of Food Science, Northeast Agricultural University, Harbin, China
- Danisco (China) Co., Ltd, Kunshan, China
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16
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Yu Z, Ma L, Liu B, Wang W, Shang Z, Dang H, Liu C. Improvement of foaming properties of ovalbumin: Insights into the synergistic effect of preheating and high-intensity ultrasound on physicochemical properties and structure analysis. ULTRASONICS SONOCHEMISTRY 2023; 101:106672. [PMID: 37925915 PMCID: PMC10656216 DOI: 10.1016/j.ultsonch.2023.106672] [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: 09/16/2023] [Revised: 10/17/2023] [Accepted: 10/28/2023] [Indexed: 11/07/2023]
Abstract
Ovalbumin (OVA), characterized by its high concentration in eggs, possesses remarkable foaming properties. Nevertheless, OVA is highly sensitive to thermal changes and acid-base conditions, substantially hampering its application potential for foaming purposes within the food industry. This experiment aimed to examine the effects of preheating and high-intensity ultrasound (HIU) treatment at different powers on OVA foaming properties and explore the underlying mechanisms. The results revealed that OVA exhibited the highest foaming capacity (31.5 %) and foaming stability (96.7 %) under the treatment condition of 200w + 60°C. Additionally, significant improvements were observed in the content of free sulfhydryl groups (37.27 μmg/g), solution viscosity (142.33 mPa·s), and surface hydrophobicity (37.27 μg BPB) under this condition. The absolute value of the zeta potential (-10.28 mV) was significantly increased in the 200w + 60°C treatment group. Moreover, the polymer dispersity index of OVA (0.6045) was significantly reduced, resulting in improved dispersion than the control group. The structural analysis revealed significant changes in the α-helix and β-sheet content of OVA after treatment at 200w + 60 °C. The X-ray diffraction pattern exhibited sharper peaks, indicating a crystal structure, and the fluorescence peak displayed a slight blue shift along with increased hydrophobicity. Moreover, the preheating and HIU treatment induced a continuous uneven and irregular pore structure in OVA, which ultimately enhanced its foaming properties. In conclusion, the preheating and HIU treatment offers a novel approach to enhance the foaming properties of OVA.
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Affiliation(s)
- Zhihui Yu
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, Shanxi, China
| | - Li Ma
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, Shanxi, China
| | - Binbin Liu
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, Shanxi, China
| | - Wenqing Wang
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, Shanxi, China
| | - Ziqi Shang
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, Shanxi, China
| | - Huichao Dang
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, Shanxi, China
| | - Chunyou Liu
- Department of Food Science and Technology, School of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, China.
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Zhang M, Chen W, Ju Y, Zhao H, Wang C. Polymer-Protein Nanovaccine Synthesized via Reactive Self-Assembly with Potential Application in Cancer Immunotherapy: Physicochemical and Biological Characterization In Vitro and In Vivo. Macromol Rapid Commun 2023; 44:e2300438. [PMID: 37708966 DOI: 10.1002/marc.202300438] [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: 07/20/2023] [Revised: 09/10/2023] [Indexed: 09/16/2023]
Abstract
Nanovaccines composed of polymeric nanocarriers and protein-based antigens have attracted much attention in recent years because of their enormous potential in the prevention and treatment of diseases such as viral infections and cancer. While surface-conjugated protein antigens are known to be more immunoactive than encapsulated antigens, current surface conjugation methods often result in low and insufficient protein loading. Herein, reactive self-assembly is used to prepare nanovaccine from poly(ε-caprolactone) (PCL) and ovalbumin (OVA)-a model antigen. A rapid thiol-disulfide exchange reaction between PCL with pendant pyridyl disulfide groups and thiolated OVA results in the formation of nanoparticles with narrow size distribution. High OVA loading (≈70-80 wt%) is achieved, and the native secondary structure of OVA is preserved. Compared to free OVA, the nanovaccine is much superior in enhancing antigen uptake by bone marrow-derived dendritic cells (BMDCs), promoting BMDC maturation and antigen presentation via the MHC I pathway, persisting at the injection site and draining lymph nodes, activating both Th1 and Th2 T cell immunity, and ultimately, resisting tumor challenge in mice. This is the first demonstration of reactive self-assembly for the construction of a polymer-protein nanovaccine with clear potential in advancing cancer immunotherapy.
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Affiliation(s)
- Mingming Zhang
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, China
| | - Wenjuan Chen
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, China
| | - Yuanyuan Ju
- Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Hanying Zhao
- Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Chun Wang
- Department of Biomedical Engineering, University of Minnesota, 7-105 Hasselmo Hall, 312 Church Street S. E., Minneapolis, MN, 55455, USA
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Liu S, Kong T, Feng Y, Fan Y, Yu J, Duan Y, Cai M, Hu K, Ma H, Zhang H. Effects of slit dual-frequency ultrasound-assisted pulping on the structure, functional properties and antioxidant activity of Lycium barbarum proteins and in situ real-time monitoring process. ULTRASONICS SONOCHEMISTRY 2023; 101:106696. [PMID: 37988957 PMCID: PMC10696417 DOI: 10.1016/j.ultsonch.2023.106696] [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: 09/24/2023] [Revised: 11/09/2023] [Accepted: 11/13/2023] [Indexed: 11/23/2023]
Abstract
To improve the protein dissolution rate and the quality of fresh Lycium barbarum pulp (LBP), we optimized the slit dual-frequency ultrasound-assisted pulping process, explored the dissolution kinetics of Lycium barbarum protein (LBPr), and established a near-infrared spectroscopy in situ real-time monitoring model for LBPr dissolution through spectral information analysis and chemometric methods. The results showed that under optimal conditions (dual-frequency 28-33 kHz, 300 W, 31 min, 40 °C, interval ratio 5:2 s/s), ultrasonic treatment not only significantly increased LBPr dissolution rate (increased by 71.48 %, p < 0.05), improved other nutrient contents and color, but also reduced the protein particle size, changed the amino acid composition ratio and protein structure, and increased the surface hydrophobicity, zeta potential, and free sulfhydryl content of protein, as well as the antioxidant activity of LBPr. In addition, ultrasonication significantly improved the functional properties of the protein, including thermal stability, foaming, emulsification and oil absorption capacity. Furthermore, the real-time monitoring model of the dissolution process was able to quantitatively predict the dissolution rate of LBPr with good calibration and prediction performance (Rc = 0.9835, RMSECV = 2.174, Rp = 0.9841, RMSEP = 1.206). These findings indicated that dual-frequency ultrasound has great potential to improve the quality of LBP and may provide a theoretical basis for the establishment of an intelligent control system in the industrialized production of LBP and the functional development of LBPr.
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Affiliation(s)
- Shuhan Liu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Tianyu Kong
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yuqin Feng
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yanli Fan
- School of Food & Wine, Ningxia University, Yinchuan 750021, China
| | - Junwei Yu
- Ningxia Zhongning Goji Industry Innovation Research Institute, Zhongning 755100, China
| | - Yuqing Duan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China.
| | - Meihong Cai
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Kai Hu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China
| | - Haile Ma
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China
| | - Haihui Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
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19
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Lu S, Xiong W, Yao Y, Zhang J, Wang L. Investigating the physicochemical properties and air-water interface adsorption behavior of transglutaminase-crosslinking rapeseed protein isolate. Food Res Int 2023; 174:113505. [PMID: 37986500 DOI: 10.1016/j.foodres.2023.113505] [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: 07/28/2023] [Revised: 09/14/2023] [Accepted: 09/22/2023] [Indexed: 11/22/2023]
Abstract
Improving the technical functionality to adapt to the application of complex food systems is an important challenge for the development of plant protein ingredients. Herein, the correlation between the physicochemical properties and interfacial adsorption behavior of rapeseed protein isolate (RPI) at the air-water interface after transglutaminase (TG) treatment was investigated. The results of cross-linking degree, Fourier transform infrared spectroscopy (FTIR) and sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) showed that the TG enzyme was able to catalyse cross-linking between lysine and glutamine residues of RPI. The foaming capacity of RPI was enhanced from 120 % to 150 % after TG cross-linking 5 h, whereas the average size (210-219 nm) of the RPI determined by dynamic light scattering did not change significantly. Besides, the hydrophobicity tended to increase overall under the enzyme treatment, while the surface electrostatic potential decreased. The former indicates the unfolding of the protein and reduces the kinetic barriers to protein adsorption at the air-water interface, with a consequent increase in disulfide bonding and surface pressure. Furthermore, as the enzyme treatment time increased, a significant increase in protein content of foam by 33.86 %. These findings provide novel insight into the foaming mechanism of TG cross-linking RPI.
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Affiliation(s)
- Shanshan Lu
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing University of Finance and Economics, Nanjing 210023, Jiangsu, China
| | - Wenfei Xiong
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing University of Finance and Economics, Nanjing 210023, Jiangsu, China
| | - Yijun Yao
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing University of Finance and Economics, Nanjing 210023, Jiangsu, China
| | - Jing Zhang
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing University of Finance and Economics, Nanjing 210023, Jiangsu, China
| | - Lifeng Wang
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing University of Finance and Economics, Nanjing 210023, Jiangsu, China.
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20
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Qayum A, Rashid A, Liang Q, Wu Y, Cheng Y, Kang L, Liu Y, Zhou C, Hussain M, Ren X, Ashokkumar M, Ma H. Ultrasonic and homogenization: An overview of the preparation of an edible protein-polysaccharide complex emulsion. Compr Rev Food Sci Food Saf 2023; 22:4242-4281. [PMID: 37732485 DOI: 10.1111/1541-4337.13221] [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: 05/11/2023] [Revised: 06/28/2023] [Accepted: 07/17/2023] [Indexed: 09/22/2023]
Abstract
Emulsion systems are extensively utilized in the food industry, including dairy products, such as ice cream and salad dressing, as well as meat products, beverages, sauces, and mayonnaise. Meanwhile, diverse advanced technologies have been developed for emulsion preparation. Compared with other techniques, high-intensity ultrasound (HIUS) and high-pressure homogenization (HPH) are two emerging emulsification methods that are cost-effective, green, and environmentally friendly and have gained significant attention. HIUS-induced acoustic cavitation helps in efficiently disrupting the oil droplets, which effectively produces a stable emulsion. HPH-induced shear stress, turbulence, and cavitation lead to droplet disruption, altering protein structure and functional aspects of food. The key distinctions among emulsification devices are covered in this review, as are the mechanisms of the HIUS and HPH emulsification processes. Furthermore, the preparation of emulsions including natural polymers (e.g., proteins-polysaccharides, and their complexes), has also been discussed in this review. Moreover, the review put forward to the future HIUS and HPH emulsification trends and challenges. HIUS and HPH can prepare much emulsifier-stable food emulsions, (e.g., proteins, polysaccharides, and protein-polysaccharide complexes). Appropriate HIUS and HPH treatment can improve emulsions' rheological and emulsifying properties and reduce the emulsions droplets' size. HIUS and HPH are suitable methods for developing protein-polysaccharide forming stable emulsions. Despite the numerous studies conducted on ultrasonic and homogenization-induced emulsifying properties available in recent literature, this review specifically focuses on summarizing the significant progress made in utilizing biopolymer-based protein-polysaccharide complex particles, which can provide valuable insights for designing new, sustainable, clean-label, and improved eco-friendly colloidal systems for food emulsion. PRACTICAL APPLICATION: Utilizing complex particle-stabilized emulsions is a promising approach towards developing safer, healthier, and more sustainable food products that meet legal requirements and industrial standards. Moreover, the is an increasing need of concentrated emulsions stabilized by biopolymer complex particles, which have been increasingly recognized for their potential health benefits in protecting against lifestyle-related diseases by the scientific community, industries, and consumers.
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Affiliation(s)
- Abdul Qayum
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, PR China
| | - Arif Rashid
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, PR China
| | - Qiufang Liang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, PR China
| | - Yue Wu
- Sonochemistry Group, School of Chemistry, The University of Melbourne, Melbourne, Australia
| | - Yu Cheng
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, PR China
- Institute of Food Physical Processing, Jiangsu University, Zhenjiang, PR China
| | - Lixin Kang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, PR China
| | - Yuxuan Liu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, PR China
| | - Chengwei Zhou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, PR China
| | - Muhammad Hussain
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
| | - Xiaofeng Ren
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, PR China
- Institute of Food Physical Processing, Jiangsu University, Zhenjiang, PR China
| | | | - Haile Ma
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, PR China
- Institute of Food Physical Processing, Jiangsu University, Zhenjiang, PR China
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21
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Liu Q, Liu Y, Huang H, Xiong M, Yang Y, Lin C, Yang F, Xie Y, Yuan Y. Improvement of the emulsifying properties of Zanthoxylum seed protein by ultrasonic modification. ULTRASONICS SONOCHEMISTRY 2023; 100:106638. [PMID: 37826892 PMCID: PMC10582558 DOI: 10.1016/j.ultsonch.2023.106638] [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: 07/12/2023] [Revised: 09/20/2023] [Accepted: 10/06/2023] [Indexed: 10/14/2023]
Abstract
The influence of ultrasonic treatment (100-500 W, 30 min) on the molecular structures and emulsifying properties of Zanthoxylum seed protein (ZSP) was explored for the first time in this work. Research results indicated that the all ultrasonic treatments at different power levels decreased the particle size but increased the surface charge of ZSP. In addition, the ultrasonic treatments induced the structural unfolding of the ZAP, as indicated by the increase in α-helix, ultraviolet-visible absorbance, surface hydrophobicity and the amount of surface free sulfhydryl groups, as well as the decrease in β-sheet and intrinsic fluorescence intensity. As a result, the significantly (p < 0.05) increased emulsifying activity index (EAI) and emulsion stability index (ESI) of ZSP were observed after ultrasonic treatment. In addition, the emulsion prepared by ultrasonically treated ZSP exhibited the smaller and more uniform droplets with significantly improved stability against environmental stress (temperature, salt concentration, pH), creaming and oxidation due to the increased ratio of interfacially adsorbed ZSP. Furthermore, ultrasonic treatment at 400 W was found to be the optimum condition for modification. These findings will provide a theoretical foundation for the utilization of ultrasound in enhancing the emulsifying properties of ZSP and promoting its application in the field of food processing.
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Affiliation(s)
- Qingqing Liu
- Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, School of Food and Bioengineering, Xihua University, Chengdu 610039, China; Key Laboratory of Grain and Oil Processing and Food Safety of Sichuan Province, College of Food and Bioengineering, Xihua University, Chengdu 610039, China.
| | - Yanting Liu
- Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, School of Food and Bioengineering, Xihua University, Chengdu 610039, China; Key Laboratory of Grain and Oil Processing and Food Safety of Sichuan Province, College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - He Huang
- Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, School of Food and Bioengineering, Xihua University, Chengdu 610039, China; Key Laboratory of Grain and Oil Processing and Food Safety of Sichuan Province, College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Mingming Xiong
- Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, School of Food and Bioengineering, Xihua University, Chengdu 610039, China; Key Laboratory of Grain and Oil Processing and Food Safety of Sichuan Province, College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Yunting Yang
- Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, School of Food and Bioengineering, Xihua University, Chengdu 610039, China; Key Laboratory of Grain and Oil Processing and Food Safety of Sichuan Province, College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Chutian Lin
- Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, School of Food and Bioengineering, Xihua University, Chengdu 610039, China; Key Laboratory of Grain and Oil Processing and Food Safety of Sichuan Province, College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Feng Yang
- Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, School of Food and Bioengineering, Xihua University, Chengdu 610039, China; Key Laboratory of Grain and Oil Processing and Food Safety of Sichuan Province, College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Yisha Xie
- Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, School of Food and Bioengineering, Xihua University, Chengdu 610039, China; Key Laboratory of Grain and Oil Processing and Food Safety of Sichuan Province, College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Yongjun Yuan
- Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, School of Food and Bioengineering, Xihua University, Chengdu 610039, China; Key Laboratory of Grain and Oil Processing and Food Safety of Sichuan Province, College of Food and Bioengineering, Xihua University, Chengdu 610039, China.
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22
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Erdoğdu Ö, Görgüç A, Yılmaz FM. Functionality Enhancement of Pea Protein Powder via High-Intensity Ultrasound: Screening in-vitro Digestion, o/w Emulsion Properties and Testing in Gluten-Free Bread. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2023; 78:597-603. [PMID: 37624568 DOI: 10.1007/s11130-023-01087-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/24/2023] [Indexed: 08/26/2023]
Abstract
Structural modification of protein prior to food application is an emergent approach to improve functionalization. The effectiveness of high-power ultrasound at varying amplitudes (0-100%) on the properties of pea protein powder was investigated in this study. The resulting modification was also tested with model gluten-free bread formulation and by screening the emulsion properties within vegetable oil. The 50% and beyond amplitude levels had significant impact on protein solubility, viscosity, Fourier Transform Infrared (FTIR) spectra, emulsion activity and stability. Foaming capacity and stability were enhanced with 75 and 100% amplitudes while the 25% amplitude exhibited the highest absolute zeta-potential. There was a concomitant increase in ultrasound amplitude and oil-binding capacity (2.83-6.43 g/g) where the water-holding capacity gradually decreased (5.78-3.61 g/g) with the increase in ultrasound power. The increase in ultrasound power led to decrease in L* values but progressively increased the total color difference (ΔE). Sonication (50% amplitude) also promoted the in-vitro digestibility of proteins by 22% as compared to the untreated sample. Scanning electron microscopy (SEM) fairly depictured the structural modification and FTIR spectra clearly demonstrated conformational changes in protein powders. The fortification with restructured pea protein powder significantly affected the volume and adhesiveness of glutenfree bread.
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Affiliation(s)
- Özlem Erdoğdu
- Engineering Faculty, Food Engineering Department, Aydın Adnan Menderes University, Efeler, Aydın, 09010, Türkiye
| | - Ahmet Görgüç
- Engineering Faculty, Food Engineering Department, Aydın Adnan Menderes University, Efeler, Aydın, 09010, Türkiye
| | - Fatih Mehmet Yılmaz
- Engineering Faculty, Food Engineering Department, Aydın Adnan Menderes University, Efeler, Aydın, 09010, Türkiye.
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23
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Wang L, Zhang Y, Li R, Xiang D. L-lysine moderates thermal aggregation of coconut proteins induced by thermal treatment. Sci Rep 2023; 13:13310. [PMID: 37587151 PMCID: PMC10432461 DOI: 10.1038/s41598-023-38758-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 07/14/2023] [Indexed: 08/18/2023] Open
Abstract
This work attempts to investigate the inhibitory effect of L-lysine (Lys) on the thermal aggregation of coconut protein (CP). The results showed that under neutral conditions (pH = 7), temperature reduced the solubility and enhanced the thermally induced gel formation of CP. In addition, Lys reduced the fluorescence properties, particle size and increased the turbidity of CP, which had an inhibitory effect on heat induced gels. The results indicate that Lys plays an important role in inhibiting protein thermal aggregation by interacting with CP to create steric hindrance and increase protein electrostatic repulsion.
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Affiliation(s)
- Liqiang Wang
- School of Food Science and Engineering, Hainan University, No. 58 Renmin Avenue, Haikou, 570228, China
| | - Youbang Zhang
- School of Food Science and Engineering, Hainan University, No. 58 Renmin Avenue, Haikou, 570228, China
| | - Run Li
- School of Food Science and Engineering, Hainan University, No. 58 Renmin Avenue, Haikou, 570228, China
| | - Dong Xiang
- School of Food Science and Engineering, Hainan University, No. 58 Renmin Avenue, Haikou, 570228, China.
- Key Laboratory of Food Nutrition and Functional Food of Hainan Province, No. 58 Renmin Avenue, Haikou, 570228, China.
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24
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Xu L, Wang X, Xu Y, Meng J, Feng C, Geng X, Cheng Y, Chang M. Effects of Freeze-Thaw Cycles on the Structures and Functional Properties of Clitocybe squamulosa Protein Isolates. Foods 2023; 12:2948. [PMID: 37569217 PMCID: PMC10418645 DOI: 10.3390/foods12152948] [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: 06/26/2023] [Revised: 08/01/2023] [Accepted: 08/02/2023] [Indexed: 08/13/2023] Open
Abstract
Changes in the functional properties and structures of Clitocybe squamulosa protein isolate (CSPI) in the process of freeze-thaw (F-T) cycles were explored. Remarkable alterations and the reduced content of protein ordered structure were revealed through structural analysis of CSPI after F-T treatments. The surface hydrophobicity and free sulfhydryl content of CSPI first increased and then decreased. However, after the F-T treatments, the carbonyl content of CSPI continued to increase. Similarly, the water holding capacity (WHC), oil holding capacity (OHC), and solubility of CSPI all declined as the number of F-T cycles increased. The foaming properties and emulsifying properties of CSPI were significantly improved and reached maximum values after three F-T cycles. CSPI undergoing two F-T cycles showed the highest digestibility, maximum polypeptide content, and highest DPPH and ·OH-radical-scavenging activities. The ·OH-radical-scavenging activities and reducing power of the gastrointestinally digested CSPI had the highest value after one F-T cycle. Therefore, it has been demonstrated that F-T treatments could be a residue-free and cost-effective tool for improving mushroom protein functional properties.
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Affiliation(s)
- Lijing Xu
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, China
- Shanxi Key Laboratory of Edible Fungi for Loess Plateau, Taigu 030801, China
| | - Xin Wang
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, China
| | - Yaping Xu
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, China
| | - Junlong Meng
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, China
- Shanxi Engineering Research Center of Edible Fungi, Taigu 030801, China
| | - Cuiping Feng
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, China
- Shanxi Engineering Research Center of Edible Fungi, Taigu 030801, China
| | - Xueran Geng
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, China
- Shanxi Key Laboratory of Edible Fungi for Loess Plateau, Taigu 030801, China
| | - Yanfen Cheng
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, China
- Shanxi Key Laboratory of Edible Fungi for Loess Plateau, Taigu 030801, China
| | - Mingchang Chang
- Shanxi Engineering Research Center of Edible Fungi, Taigu 030801, China
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25
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Wang X, Zhang L, Chen L, Wang Y, Okonkwo CE, Yagoub AEGA, Wahia H, Zhou C. Application of ultrasound and its real-time monitoring of the acoustic field during processing of tofu: Parameter optimization, protein modification, and potential mechanism. Compr Rev Food Sci Food Saf 2023; 22:2747-2772. [PMID: 37161497 DOI: 10.1111/1541-4337.13161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 03/07/2023] [Accepted: 04/04/2023] [Indexed: 05/11/2023]
Abstract
Tofu is nutritious, easy to make, and popular among consumers. At present, traditional tofu production has gradually become perfect, but there are still shortcomings, such as long soaking time, serious waste of water resources, and the inability to realize orders for production at any time. Moreover, tofu production standards have not yet been clearly defined, with large differences in quality between them, which is not conducive to industrialized and large-scale production. Ultrasound has become a promising green processing technology with advantages, such as high extraction rate, short processing time, and ease of operation. This review focused on the challenges associated with traditional tofu production during soaking, grinding, and boiling soybeans. Moreover, the advantages of ultrasonic processing over traditional processing like increasing nutrient content, improving gel properties, and inhibiting the activity of microorganisms were explained. Furthermore, the quantification of acoustic fields by real-time monitoring technology was introduced to construct the theoretical correlation between ultrasonic treatments and tofu processing. It was concluded that ultrasonic treatment improved the functional properties of soybean protein, such as solubility, emulsifying properties, foamability, rheological properties, gel strength, and thermal stability. Therefore, the application of ultrasonic technology to traditional tofu processing to optimize industrial parameters is promising.
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Affiliation(s)
- Xue Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Lei Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Li Chen
- Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, China
| | - Yang Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Clinton Emeka Okonkwo
- Department of Food Science, College of Food and Agriculture, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Abu El-Gasim A Yagoub
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Hafida Wahia
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Cunshan Zhou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
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26
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Li X, Luo T, Wang L, Song H, Wang F, Weng Z, Zhou J, Xiang X, Xiong L, Shen X. Emulsifying properties of wheat germ protein: Effect of different ultrasonic treatment. ULTRASONICS SONOCHEMISTRY 2023; 98:106479. [PMID: 37336077 PMCID: PMC10300257 DOI: 10.1016/j.ultsonch.2023.106479] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 05/29/2023] [Accepted: 06/08/2023] [Indexed: 06/21/2023]
Abstract
The effect of ultrasonic treatment on emulsifying properties of wheat germ protein (WGP) was studied in this paper. WGP was subjected to low frequency (20 kHz), high intensity ultrasonic treatment at different power (200, 400, 600, 800 W) for 10 min, or different time (2, 4, 6, 8, 10, 15, 20 min) at 400 W. The emulsifying activity index and emulsion stability index of WGP were significantly improved, and the emulsion droplet was smaller and more uniform after ultrasound treatment. Ultrasound increased the adsorbed WGP concentration at the oil-water interface and reduced the interfacial tension, which explained the improved emulsifying properties of WGP. The investigation on molecular properties and protein conformation showed that ultrasound processing increased solubility, but decreased particle size and surface charge of WGP. Ultrasound processing resulted in the unfolding of the protein molecular structure indicated by the increase of surface hydrophobicity and surface free sulfhydryl group levels, and the decrease of intrinsic fluorescence intensity. Correlation analysis showed that the changes in WGP solubility, particle size, and surface hydrophobicity were the main driven factors for the improved emulsifying properties of WGP.
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Affiliation(s)
- Xiaotian Li
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China
| | - Tao Luo
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China
| | - Luanfeng Wang
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China
| | - Haizhao Song
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China
| | - Fang Wang
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China
| | - Zebin Weng
- School of Chinese Medicine, School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210000, China
| | - Jianxin Zhou
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China
| | | | - Ling Xiong
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China
| | - Xinchun Shen
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China.
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27
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Deng XH, Ni XX, Han JH, Yao WH, Fang YJ, Zhu Q, Xu MF. High-intensity ultrasound modified the functional properties of Neosalanx taihuensis myofibrillar protein and improved its emulsion stability. ULTRASONICS SONOCHEMISTRY 2023; 97:106458. [PMID: 37257209 DOI: 10.1016/j.ultsonch.2023.106458] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 05/15/2023] [Accepted: 05/24/2023] [Indexed: 06/02/2023]
Abstract
This study aimed to investigate the effects of high-intensity ultrasound treatment on the functional properties and emulsion stability of Neosalanx taihuensis myofibrillar protein (MP). The results showed that the carbonyl groups, emulsification properties, intrinsic fluorescence intensity, and surface hydrophobicity of the ultrasound treated MP solution were increased compared to the MP without ultrasound treatment. The results of secondary structure showed that the ultrasound treatment could cause a huge increase of β-sheet and a decline of α-helix of MP, indicating that ultrasound induced molecular unfolding and stretching. Moreover, ultrasound reduced the content of total sulfhydryl and led to a certain degree of MP cross-linking. The microscopic morphology of MP emulsion indicated that the emulsion droplet decreased with the increase of ultrasound power. In addition, ultrasound could also increase the storage modulus of the MP emulsion. The results for the lipid oxidation products indicated that ultrasound significantly improved the oxidative stability of N. taihuensis MP emulsions. This study offers an important reference theoretically for the ultrasound modification of aquatic proteins and the future development of N. taihuensis deep-processed products represented by surimi.
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Affiliation(s)
- Xiao-Hong Deng
- Key Laboratory for Quality and Safety of Agricultural Products of Hangzhou City, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Xiang-Xiang Ni
- Key Laboratory for Quality and Safety of Agricultural Products of Hangzhou City, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Jia-Hui Han
- Key Laboratory for Quality and Safety of Agricultural Products of Hangzhou City, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Wen-Hua Yao
- Key Laboratory for Quality and Safety of Agricultural Products of Hangzhou City, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Ya-Jie Fang
- Key Laboratory for Quality and Safety of Agricultural Products of Hangzhou City, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Qin Zhu
- Key Laboratory for Quality and Safety of Agricultural Products of Hangzhou City, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China
| | - Ming-Feng Xu
- Key Laboratory for Quality and Safety of Agricultural Products of Hangzhou City, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China.
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28
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Inducing the structural interplay of binary pulse protein complex to stimulate the solubilization of chickpea (Cicer arietinum L.) protein isolate. Food Chem 2023; 407:135136. [PMID: 36502729 DOI: 10.1016/j.foodchem.2022.135136] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 10/12/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022]
Abstract
Chickpea protein (CP) is an exceptional nutrient-dense pulse protein prevailing in the development of plant-based foods. However, its relatively low solubility, compared to other legume proteins, hinders the practical uses of CP in food matrix. To resolve this problem, pea protein (PP), another popular pulse protein, was co-assembled with CP to form a binary complex during the alkaline pH-shifting process. Results indicated that the complexed CP exhibited significantly increased solubility to that of the pristine protein (more than 50%), whose aqueous stability was also enhanced against different environmental stresses (pH, salt, heat/frozen treatment, and centrifugation). Structural and morphology analysis confirmed the interplay between unfolded CP and PP during pH shifting, which enabled their resistance to acid-induced structural over-folding. Our experiments that induce the co-assembling of two pulse proteins provide a novel routine and scientific basis for tailoring CP functionalities, as well as the formulation of pulse protein-based products.
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29
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Gul O, Saricaoglu FT, Atalar I, Gul LB, Tornuk F, Simsek S. Structural Characterization, Technofunctional and Rheological Properties of Sesame Proteins Treated by High-Intensity Ultrasound. Foods 2023; 12:foods12091791. [PMID: 37174329 PMCID: PMC10178585 DOI: 10.3390/foods12091791] [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: 03/17/2023] [Revised: 04/17/2023] [Accepted: 04/20/2023] [Indexed: 05/15/2023] Open
Abstract
Plant-derived proteins, such as those from sesame seeds, have the potential to be used as versatile food ingredients. End-use functionality can be further improved by high-intensity ultrasound treatments. The effects of high-intensity ultrasound on the properties of sesame protein isolates from cold-pressed sesame cake were evaluated. The SDS-PAGE demonstrated no significant changes in the molecular weight of proteins. Ultrasound treatments resulted in decreased particle size with a more uniform distribution, resulting in the exposure of hydrophobicity and free -SH groups and increased zeta potential. Although FTIR spectra of proteins were similar after ultrasonication, a partial increase in the intensity of the amide A band was observed. The ultrasound significantly (p < 0.05) affected the secondary structure of proteins. While optical micrographics revealed a dispersed structure with smaller particles after treatments, microstructural observations indicated more rough and irregular surfaces. Water solubility was improved to 80.73% in the sample subjected to 6 min of ultrasonication. Sesame protein solutions treated for 4 and 6 min exhibited viscoelastic structure (storage modulus (G') > loss modulus (G'')). In addition, the gelation temperature of proteins decreased to about 60-65 °C with increasing treatment time. Overall, ultrasound is a useful technique for the modification of sesame protein isolates.
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Affiliation(s)
- Osman Gul
- Department of Food Engineering, Faculty of Engineering and Architecture, Kastamonu University, 37150 Kastamonu, Turkey
| | - Furkan Turker Saricaoglu
- Department of Food Engineering, Faculty of Engineering and Natural Sciences, Bursa Technical University, 16310 Bursa, Turkey
| | - Ilyas Atalar
- Department of Food Engineering, Faculty of Agriculture, Eskisehir Osmangazi University, 26160 Eskisehir, Turkey
| | - Latife Betul Gul
- Department of Food Engineering, Faculty of Engineering, Giresun University, 28200 Giresun, Turkey
| | - Fatih Tornuk
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, 34349 Istanbul, Turkey
| | - Senay Simsek
- Department of Food Science & Whistler Center for Carbohydrate Research, Purdue University, West Lafayette, IN 47907, USA
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30
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Xie J, Huang W, Wu X. Effects of tea saponin on the foaming properties of pea protein. Food Funct 2023; 14:4339-4353. [PMID: 37083690 DOI: 10.1039/d3fo00104k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
Abstract
Plant proteins are becoming increasingly important for foam formation as an alternative to animal proteins. Consumers, however, are unsatisfied with the foaming properties of pea protein isolates. Recent research on proteins and surfactants has primarily concentrated on chemically synthesized surfactants. In this study, foams were prepared by complexing pea protein isolates with a natural small molecule surfactant tea saponin. This study investigates the mechanisms responsible for the formation and stability of foams prepared from pea protein isolates (PPIs) complexed with tea saponins. Analyses of foaming performance were carried out by analyzing the morphology of foam, foaming properties, foam's rheological properties, and the microstructure of the pea protein-tea saponin complex system. Compared to the pea protein isolate alone, the pea protein-tea saponin complex significantly improved foaming capacity and foaming stability. As shown by light microscopy analysis, the size of the foam decreased and became more homogeneous, probably because of the altered aggregate state of the protein. In this study, natural surfactants and mixtures of plant proteins are studied in order to better understand their properties. The mixed system has excellent prospects for application in the industries related to foam.
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Affiliation(s)
- Jiaxing Xie
- College of Food Science, South China Agricultural University, Guangzhou 510642, China.
| | - Weijuan Huang
- College of Food Science, South China Agricultural University, Guangzhou 510642, China.
- Research Center for Green Development of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Xuehui Wu
- College of Food Science, South China Agricultural University, Guangzhou 510642, China.
- Guangdong Engineering Research Center for Oil-Tea Camellia, Guangzhou 510642, China
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31
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Flores‐Jiménez NT, Ulloa JA, Urías‐Silvas JE, Hidalgo‐Millán A. Modification of rheological properties of animal and vegetable proteins treated with high‐intensity ultrasound: A review. FOOD FRONTIERS 2023. [DOI: 10.1002/fft2.220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023] Open
Affiliation(s)
| | - José Armando Ulloa
- Posgrado en Ciencias Biológico Agropecuarias Universidad Autónoma de Nayarit Nayarit México
- Centro de Tecnología de Alimentos Universidad Autónoma de Nayarit Nayarit México
| | - Judith Esmeralda Urías‐Silvas
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A. C. Tecnología Alimentaria. Unidad Zapopan Jalisco México
| | - Antonio Hidalgo‐Millán
- Unidad Académica de Ciencias e Ingenierías Universidad Autónoma de Nayarit Nayarit México
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32
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Zhang RY, Wang Y, Jiang Y, Min EH, Rao SQ. Effects of dual succinylation and ultrasonication modification on the structural and functional properties of ovalbumin. Food Res Int 2023; 165:112511. [PMID: 36869511 DOI: 10.1016/j.foodres.2023.112511] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 01/10/2023] [Accepted: 01/21/2023] [Indexed: 01/31/2023]
Abstract
In this study, the functional properties of ovalbumin (OVA) were improved through dual modification with succinylation (succinylation degrees of 32.1 % [S1], 74.2 % [S2], and 95.2 % [S3]) and ultrasonication (ultrasonication durations of 5 min [U1], 15 min [U2], and 25 min [U3]), and the changes in protein structures were explored. Results showed that as the succinylation degree was increased, the particle size and surface hydrophobicity of S-OVA decreased by the maximum values of 2.2 and 2.4 times, respectively, causing emulsibility and emulsifying stability to increase by 2.7 and 7.3 times, respectively. After ultrasonic treatment, the particle size of succinylated-ultrasonicated OVA (SU-OVA) had decreased by 3.0-5.1 times relative to that of S-OVA. Moreover, the net negative charge of S3U3-OVA had increased to the maximum value of - 35.6 mV. These changes contributed to the further enhancement in functional indicators. The unfolding of the protein structure and the conformational flexibility of SU-OVA were illustrated and compared with those of S-OVA via protein electrophoresis, circular dichroism spectroscopy, intrinsic fluorescence spectroscopy, and scanning electron microscopy. The dually modified OVA emulsion (S3U3-E) presented small droplets (243.33 nm), reduced viscosity, and weakened gelation behavior that were indicative of even distribution, which was visually proven by confocal laser scanning microscopy images. Furthermore, S3U3-E exhibited favorable stability, a particle size that was almost unchanged, and a low polydispersity index (<0.1) over 21 days of storage at 4 °C. The above results demonstrated that succinylation combined with ultrasonic treatment could be an effective dual modification method for enhancing the functional performance of OVA.
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Affiliation(s)
- Ru-Yi Zhang
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Yang Wang
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Yi Jiang
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Er-Hu Min
- Jiangsu Vocational College of Tourism, Yangzhou 225127, Jiangsu, China
| | - Sheng-Qi Rao
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China; Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou University, Yangzhou 225127, Jiangsu, China.
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33
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Cai Z, Wei Y, Shi A, Zhong J, Rao P, Wang Q, Zhang H. Correlation between interfacial layer properties and physical stability of food emulsions: current trends, challenges, strategies, and further perspectives. Adv Colloid Interface Sci 2023; 313:102863. [PMID: 36868168 DOI: 10.1016/j.cis.2023.102863] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 02/16/2023] [Accepted: 02/18/2023] [Indexed: 03/02/2023]
Abstract
Emulsions are thermodynamically unstable systems that tend to separate into two immiscible phases over time. The interfacial layer formed by the emulsifiers adsorbed at the oil-water interface plays an important role in the emulsion stability. The interfacial layer properties of emulsion droplets have been considered the cutting-in points that influence emulsion stability, a traditional motif of physical chemistry and colloid chemistry of particular significance in relation to the food science and technology sector. Although many attempts have shown that high interfacial viscoelasticity may contribute to long-term emulsion stability, a universal relationship for all cases between the interfacial layer features at the microscopic scale and the bulk physical stability of the emulsion at the macroscopic scale remains to be established. Not only that, but integrating the cognition from different scales of emulsions and establishing a unified single model to fill the gap in awareness between scales also remain challenging. In this review, we present a comprehensive overview of recent progress in the general science of emulsion stability with a peculiar focus on interfacial layer characteristics in relation to the formation and stabilization of food emulsions, where the natural origin and edible safety of emulsifiers and stabilizers are highly requested. This review begins with a general overview of the construction and destruction of interfacial layers in emulsions to highlight the most important physicochemical characteristics of interfacial layers (formation kinetics, surface load, interactions among adsorbed emulsifiers, thickness and structure, and shear and dilatational rheology), and their roles in controlling emulsion stability. Subsequently, the structural effects of a series of typically dietary emulsifiers (small-molecule surfactants,proteins, polysaccharides, protein-polysaccharide complexes, and particles) on oil-water interfaces in food emulsions are emphasized. Finally, the main protocols developed for modifying the structural characteristics of adsorbed emulsifiers at multiple scales and improving the stability of emulsions are highlighted. Overall, this paper aims to comprehensively study the literature findings in the past decade and find out the commonality of multi-scale structures of emulsifiers, so as to deeply understand the common characteristics and emulsification stability behaviour of adsorption emulsifiers with different interfacial layer structures. It is difficult to say that there has been significant progress in the underlying principles and technologies in the general science of emulsion stability over the last decade or two. However, the correlation between interfacial layer properties and physical stability of food emulsions promotes revealing the role of interfacial rheological properties in emulsion stability, providing guidance on controlling the bulk properties by tuning the interfacial layer functionality.
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Affiliation(s)
- Zhixiang Cai
- Advanced Rheology Institute, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yue Wei
- Advanced Rheology Institute, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Aimin Shi
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, P.O. Box 5109, Beijing 100193, China
| | - Jian Zhong
- Xinhua Hospital, Shanghai Institute for Pediatric Research, Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - Pingfan Rao
- Food Nutrition Sciences Centre, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Qiang Wang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, P.O. Box 5109, Beijing 100193, China.
| | - Hongbin Zhang
- Advanced Rheology Institute, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai, 200240, China..
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34
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Rawat R, Saini CS. High-Intensity Ultrasound (HIUS) Treatment of Sunnhemp Protein Isolate (Crotalaria juncea L.): Modification of Functional, Structural, and Microstructural Properties. FOOD BIOPROCESS TECH 2023. [DOI: 10.1007/s11947-023-03011-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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35
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Lu X, Yin Q, Zheng Z, Mu D, Zhong X, Luo S, Zhao Y. Effect of sodium trimetaphosphate on the physicochemical properties of modified soy protein isolates and its lutein-loaded emulsion. J Food Sci 2023; 88:744-756. [PMID: 36633000 DOI: 10.1111/1750-3841.16446] [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: 02/11/2022] [Revised: 12/10/2022] [Accepted: 12/15/2022] [Indexed: 01/13/2023]
Abstract
Due to people's pursuit of healthy and green life, soy protein isolate (SPI) is occupying a larger and larger market share. However, the low solubility of SPI affects its development in the field of food and medicine. This paper aimed to investigate the effects of sodium trimetaphosphate (STMP) on the functional properties and structures of phosphorylated SPI and its lutein-loaded emulsion. After modification by STMP, the phosphorus content of phosphorylated SPI reached 1.2-3.61 mg/g. Infrared spectrum and X-ray photoelectron spectrum analysis confirmed that PO4 3- had phosphorylation with -OH in serine of SPI molecule. X-ray diffraction analysis showed that phosphorylation destroyed the crystal structure of protein molecules. Zeta potential value of phosphorylated SPI decreased significantly. When STMP addition was 100 g/kg, particle size of protein solution decreased to 203 nm, and solubility increased to 73.5%. Furthermore, emulsifying activity and emulsifying stability increased by 0.51 times and 8 times, respectively. At the same protein concentration (1%-3% [w/w]), lutein-loaded emulsion prepared by phosphorylated SPI had higher absolute potential and smaller particle size. The phosphorylated protein emulsion at 2% concentration had the best emulsion stability after storage for 17 days. PRACTICAL APPLICATION: Phosphorylation significantly improved the emulsifying properties and solubility of SPI. Phosphorylated SPI significantly improved the stability of lutein-loaded emulsion. It provides theoretical basis for the application of phosphorylated SPI as emulsifier in delivery system and broadens the development of lutein in food and medicine field.
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Affiliation(s)
- Xingxing Lu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China.,Key Laboratory for Agricultural Products Processing of Anhui Province, Hefei University of Technology, Hefei, China
| | - Qi Yin
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China.,Key Laboratory for Agricultural Products Processing of Anhui Province, Hefei University of Technology, Hefei, China
| | - Zhi Zheng
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China.,Key Laboratory for Agricultural Products Processing of Anhui Province, Hefei University of Technology, Hefei, China
| | - Dongdong Mu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China.,Key Laboratory for Agricultural Products Processing of Anhui Province, Hefei University of Technology, Hefei, China
| | - Xiyang Zhong
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China.,Key Laboratory for Agricultural Products Processing of Anhui Province, Hefei University of Technology, Hefei, China
| | - Shuizhong Luo
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China.,Key Laboratory for Agricultural Products Processing of Anhui Province, Hefei University of Technology, Hefei, China
| | - Yanyan Zhao
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China.,Key Laboratory for Agricultural Products Processing of Anhui Province, Hefei University of Technology, Hefei, China
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36
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Abker AM, Wang S, Chen S, Ma M, Fu X. The effects of high-intensity ultrasound and oil types on the physicochemical properties of egg white protein emulsions. J FOOD ENG 2023. [DOI: 10.1016/j.jfoodeng.2022.111276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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37
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Huang D, Li W, Li G, Zhang W, Chen H, Jiang Y, Li D. Effect of high-intensity ultrasound on the physicochemical properties of Tenebrio Molitor Protein. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2022.108056] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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38
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Kelany M, Yemiş O. Improving the Functional Performance of Date Seed Protein Concentrate by High-Intensity Ultrasonic Treatment. Molecules 2022; 28:molecules28010209. [PMID: 36615403 PMCID: PMC9822023 DOI: 10.3390/molecules28010209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 12/28/2022] Open
Abstract
Date kernel is a plant-derived byproduct that has the potential to be converted into a high-value-added food ingredient, such as protein concentrate, in the food industry. Ultrasound, which is an alternative method for improving the functional properties of food proteins, is an effective physical treatment for modifying protein functionality. Solubility is the main criterion that primarily affects other functional properties of protein concentrates, such as emulsification, foaming, and water and oil binding. The aim of this study is to enhance the techno-functional performance of date seed protein concentrate (DSPC) by maximizing the solubility via a high-intensity ultrasound (HIUS) treatment at a fixed frequency of 20 kHz. The effect of ultrasonic homogenization under varying amplitudes and times (amplitude of 40, 60, and 80% for 5, 10, and 15 min, respectively) on the functional properties of the DSPC was investigated by using the response surface methodology (RSM). A face-centered central composite design (FC-CCD) revealed that the optimal process conditions of HIUS were at an amplitude of 80% for 15 min. The physicochemical and functional properties of the ultrasound-applied concentrate (DSPC-US) were determined under the optimum HIUS conditions, and then these properties of DSPC-US were compared to the native DSPC. The results showed that the solubility of all DSPC samples treated by HIUS was significantly (p < 0.05) higher than that of the native DSPC. In addition, emulsion activity/stability, foaming activity/stability, and oil-binding capacity increased after HIUS homogenization treatments, whereas the water-binding capacity decreased. These changes in the techno-functional properties of the DSPC-US were explained by the modification to the physicochemical structure of the DSPC (particle size, zeta potential, SDS-PAGE, SEM, FTIR, DSC, free SH content, surface hydrophobicity, and intrinsic emission). This work revealed that HIUS could be an effective treatment for enhancing the functional properties of date seed protein concentrate.
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Affiliation(s)
- Mohamed Kelany
- Food Science and Nutrition Department, Faculty of Agriculture, Sohag University, Sohag 82524, Egypt
- Department of Food Engineering, Faculty of Engineering, Sakarya University, Sakarya 54187, Turkey
- Research, Development and Application Centre (SARGEM), Sakarya University, Sakarya 54187, Turkey
| | - Oktay Yemiş
- Department of Food Engineering, Faculty of Engineering, Sakarya University, Sakarya 54187, Turkey
- Research, Development and Application Centre (SARGEM), Sakarya University, Sakarya 54187, Turkey
- Correspondence: ; Tel.: +90-264-295-31-92; Fax: +90-264-295-56-01
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39
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Application of ultrasound-assisted alkaline extraction for improving the solubility and emulsifying properties of pale, soft, and exudative (PSE)-like chicken breast meat protein isolate. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.114234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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40
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Obtention and evaluation of physico-chemical and techno-functional properties of macauba (Acrocomia aculeata) kernel protein isolate. Food Res Int 2022; 161:111848. [DOI: 10.1016/j.foodres.2022.111848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 08/11/2022] [Accepted: 08/21/2022] [Indexed: 11/21/2022]
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41
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Insight into Effects of high Intensity Ultrasound Treatment on Foamability and Physicochemical Properties of Frozen egg White Protein. FOOD BIOPHYS 2022. [DOI: 10.1007/s11483-022-09764-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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42
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Yüceer M. Characterization of pasteurized and sonicated whole shell egg and evaluating egg's interior quality during storage period. J FOOD PROCESS ENG 2022. [DOI: 10.1111/jfpe.14194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Muhammed Yüceer
- Department of Food Processing Canakkale Onsekiz Mart University Canakkale Turkey
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43
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Bangar SP, Esua OJ, Sharma N, Thirumdas R. Ultrasound-assisted modification of gelation properties of proteins: A review. J Texture Stud 2022; 53:763-774. [PMID: 35275412 DOI: 10.1111/jtxs.12674] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 02/27/2022] [Accepted: 03/03/2022] [Indexed: 12/16/2022]
Abstract
Protein gels have diverse applications in the food, pharmaceutical, and cosmetic sectors due to their affordability, biodegradability, and edibility. However, the inherent properties of some native proteins have a few drawbacks that have to be tailored to meet the needs of specific functions as the food ingredients. The protein gelation properties mainly depend on the protein molecular structure, primarily the folding and unfolding of secondary structural elements (α-helix and β-sheets) with distinctive functions. In the past, a great amount of work (thermal, chemical, and enzymatic methods) has been carried out to enhance the gelation and functional properties of proteins. Recently, the traditional methods have been replaced with non-thermal physical methods that enhance the properties for better applications. One such approach is the use of ultrasonic technology as a low-cost green technology to modify the molecular orientation attributed to the native chemistry and functionality of that proteins. Ultrasonic technology is important in food systems and can be effectively used as an alternative method to improve the protein gelling characteristics to form high-quality gels. This article is aimed to comprehensively collate some of the vital information published on the mechanism of protein gelation by ultrasonication and review the effects of ultrasound-assisted extraction and treatments on gelation properties of different proteins. The enhanced gelation properties by the ultrasound application open a new stage of technology that enables the proteins for better utilization in the food processing sector.
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Affiliation(s)
- Sneh Punia Bangar
- Department of Food, Nutrition and Packaging Sciences, Clemson University, Clemson, SC, USA
| | - Okon Johnson Esua
- Department of Agricultural and Food Engineering, University of Uyo, Uyo, Nigeria.,School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - Nitya Sharma
- Food Customization Research Lab, Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi, India
| | - Rohit Thirumdas
- Department of Food Process Technology, College of Food Science and Technology, PJTSAU, Telangana, India
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44
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Asaithambi N, Singha P, Singh SK. Comparison of the effect of hydrodynamic and acoustic cavitations on functional, rheological and structural properties of egg white proteins. INNOV FOOD SCI EMERG 2022. [DOI: 10.1016/j.ifset.2022.103166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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45
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Ge J, Sun CX, Sun M, Zhang Y, Fang Y. Introducing panda bean (Vigna umbellata (Thunb.) Ohwi et Ohashi) protein isolate as an alternative source of legume protein: Physicochemical, functional and nutritional characteristics. Food Chem 2022; 388:133016. [PMID: 35486987 DOI: 10.1016/j.foodchem.2022.133016] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 03/21/2022] [Accepted: 04/17/2022] [Indexed: 11/26/2022]
Abstract
Panda bean protein isolate (PDPI), a legume-protein with Chinese characteristics, was investigated as an alternative potential food protein source. The physicochemical characteristics, functional properties and amino-acid composition of PDPI were determined and compared with soybean (SPI) and pea protein isolate (PPI). Results showed that PDPI was rich in phaseolin (mainly 7S vicilin), and its molecular weight was lower than that of SPI and PPI which were rich in legumin and vicilin. In comparison to SPI and PPI, PDPI showed the lowest solubility, surface-charge and surface-tension at pH 3.0, 7.0 and 9.0, but it exhibited comparable or even superior functionalities, especially in emulsifying and foaming abilities, gelling behaviour, rheological and textural properties. Moreover, the amino-acid composition and protein efficiency ratio of PDPI were excellent. The knowledge gained in the study is expected to provide reliable scientific science data for the potential application of PDPI in the food industry.
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Affiliation(s)
- Jiao Ge
- Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Cui-Xia Sun
- Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Manman Sun
- Zhejiang Top Hydrocolloids Co., Ltd, Shanghai 200240, People's Republic of China
| | - Yin Zhang
- Key Laboratory of Meat Processing of Sichuan, Chengdu University, Chengdu 610106, People's Republic of China
| | - Yapeng Fang
- Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China.
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46
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Yang C, Zhu X, Zhang Z, Yang F, Wei Y, Zhang Z, Yang F. Heat treatment of quinoa (Chenopodium quinoa Willd.) albumin: Effect on structural, functional, and in vitro digestion properties. Front Nutr 2022; 9:1010617. [PMID: 36185662 PMCID: PMC9520662 DOI: 10.3389/fnut.2022.1010617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 08/29/2022] [Indexed: 11/13/2022] Open
Abstract
Quinoa seeds are rich in protein, polyphenols, phytosterols, and flavonoid substances, and excellent amino acid balance that has been revisited recently as a new food material showing potential applied in fitness and disease prevention. Heat treatment is one of the most effective strategies for improving the physiochemical characteristics of a protein. However, research examining the effects of temperature on quinoa albumin (QA) properties is limited. In this study, QA was subjected to thermal treatment (50, 60, 70, 80, 90, 100, and 121°C). SDS−PAGE revealed that QA is composed of several polypeptides in the 10−40 kDa range. Amino acid (AA) analysis showed that the branched-chain amino acids (BCAAs), negatively charged amino acid residues (NCAAs), and positively charged amino acids (PCAAs) contents of QA were more than double that of the FAO/WHO reference standard. Additionally, heating induced structural changes, including sulfhydryl-disulfide interchange and the exposure of hydrophobic groups. Scanning electron microscopy demonstrated that the albumin underwent denaturation, dissociation, and aggregation during heating. Moreover, moderate heat treatment (60, 70, and 80°C) remarkably improved the functional properties of QA, enhancing its solubility, water (oil) holding capacity, and emulsification and foaming characteristics. However, heating also reduced the in vitro digestibility of QA. Together, these results indicate that heat treatment can improve the structural and functional properties of QA. This information has important implications for optimizing quinoa protein production, and various products related to quinoa protein could be developed. which provides the gist of commercial applications of quinoa seeds for spreading out in the marketplace.
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Affiliation(s)
- Chao Yang
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China
| | - Xijin Zhu
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China
| | - Zhaoyun Zhang
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China
| | - Farong Yang
- Animal Husbandry, Pasture and Green Agriculture Institute, Gansu Academy of Agricultural Sciences, Lanzhou, China
| | - Yuming Wei
- Animal Husbandry, Pasture and Green Agriculture Institute, Gansu Academy of Agricultural Sciences, Lanzhou, China
| | - Zhen Zhang
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China
| | - Fumin Yang
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China
- *Correspondence: Fumin Yang,
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47
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Effects of High-Intensity Ultrasound Treatments on the Physicochemical and Structural Characteristics of Sodium Caseinate (SC) and the Stability of SC-Coated Oil-in-Water (O/W) Emulsions. Foods 2022; 11:foods11182817. [PMID: 36140961 PMCID: PMC9498016 DOI: 10.3390/foods11182817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/07/2022] [Accepted: 09/07/2022] [Indexed: 11/17/2022] Open
Abstract
The effects of high-intensity ultrasound treatment (0, 3, 6, 9 min) on physicochemical and structural characteristics of SC and the storage, thermal and freeze–thaw stability of SC O/W emulsions were investigated. The results showed that ultrasound treatment reduced the particle size of SC, although there were no obvious changes in zeta potential, profiles and weights. Ultrasound treatment improved surface hydrophobicity and fluorescence intensity of SC and changed ultraviolet–visible (UV–Vis) spectroscopy but had no influence on the secondary structure of SC. This indicates that ultrasounds might destroy the tertiary structure but leave most of the integral secondary structure. A scanning electron microscope (SEM) also showed that ultrasound-treated SC presented small aggregates and a loose structure. The physicochemical and structural changes of SC benefited the ability of protein adsorbing oil droplets and emulsion stability. Under stresses such as storage, thermal and freeze–thawing, the oil droplets of treated emulsions were still uniform and stable, especially at 6 min and 9 min. Overall, the high-intensity ultrasounds made the SC present small aggregates and a loose structure improving the SC O/W emulsions stability under storage, thermal and freeze–thawing environment and have great potential to stabilize the SC prepared O/W emulsions.
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Succinylation Modified Ovalbumin: Structural, Interfacial, and Functional Properties. Foods 2022; 11:foods11182724. [PMID: 36140852 PMCID: PMC9497935 DOI: 10.3390/foods11182724] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 08/26/2022] [Accepted: 09/02/2022] [Indexed: 12/04/2022] Open
Abstract
In this study, ovalbumin (OVA) was succinylated with the addition of different levels of succinic anhydride, and the structural and functional properties of succinylated OVA (SOVA) were investigated. SDS−PAGE and FTIR spectrum confirmed the covalent attachment of the succinyl group to OVA. Thermal stability and the absolute value of zeta potential (pH 6.0) of SOVA were enhanced by 14.90% and 76.77% higher than that of the native OVA (NOVA), respectively. Circular dichroism (CD) spectra demonstrated that the succinylation decreased the α−helix and increased β−sheet content to 21.31% and 43.28%, respectively. The content of free sulfhydryl groups increased and intrinsic fluorescence spectra suggested the SOVA became more unfolded and flexible as the degree of succinylation enhanced. Furthermore, succinylation effectively enhanced the solubility and decreased the interface tension (oil−water and air−water interface) of OVA. Compared to NOVA, the emulsifying activity and stability of SOVA were increased by 1.6 times and 1.2 times, respectively, and foaming capacity and stability were enhanced by 2.7 times and 1.5 times, respectively.
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Xu Q, Li X, Lv Y, Liu Y, Yin C. Effects of ultrasonic treatment on ovomucin: Structure, functional properties and bioactivity. ULTRASONICS SONOCHEMISTRY 2022; 89:106153. [PMID: 36088894 PMCID: PMC9474920 DOI: 10.1016/j.ultsonch.2022.106153] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 08/22/2022] [Accepted: 08/30/2022] [Indexed: 06/15/2023]
Abstract
The effects of ultrasonic treatment on the structure, functional properties and bioactivity of Ovomucin (OVM) were investigated in this study. Ultrasonic treatment could significantly enhance OVM solubility without destroying protein molecules. The secondary structure changes, including β-sheet reduction and random coil increase, indicate more disorder in OVM structure. After ultrasonic treatment, the OVM molecule was unfolded partially, resulting in the exposure of hydrophobic regions. The changes in OVM molecules led to an increase in intrinsic fluorescence and surface hydrophobicity. By detecting the particle size of protein solution, it was confirmed that ultrasonic treatment disassembled the OVM aggregations causing a smaller particle size. Field emission scanning electron microscopy (FE-SEM) images showed that ultrasonic cavitation significantly reduced the tendency of OVM to form stacked lamellar structure. Those changes in structure resulted in the improvement of foaming, emulsification and antioxidant capacity of OVM. Meanwhile, the detection results of ELISA showed that ultrasonic treatment did not change the biological activity of OVM. These results suggested that the relatively gentle ultrasound treatment could be utilized as a potential approach to modify OVM for property improvement.
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Affiliation(s)
- Qi Xu
- Institute of Advanced Cross-Field Science, College of Life Science, Qingdao University, Qingdao, Shandong Province 266800, China.
| | - Xuanchen Li
- Institute of Advanced Cross-Field Science, College of Life Science, Qingdao University, Qingdao, Shandong Province 266800, China
| | - Yunzheng Lv
- Institute of Advanced Cross-Field Science, College of Life Science, Qingdao University, Qingdao, Shandong Province 266800, China
| | - Yaping Liu
- College of Food Science and Engineering, Northwest A&F University, No. 22 Xinong Road, Yangling, Shaanxi 712100, China
| | - Chunfang Yin
- Institute of Advanced Cross-Field Science, College of Life Science, Qingdao University, Qingdao, Shandong Province 266800, China
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Yang J, Duan Y, Geng F, Cheng C, Wang L, Ye J, Zhang H, Peng D, Deng Q. Ultrasonic-assisted pH shift-induced interfacial remodeling for enhancing the emulsifying and foaming properties of perilla protein isolate. ULTRASONICS SONOCHEMISTRY 2022; 89:106108. [PMID: 35933969 PMCID: PMC9364021 DOI: 10.1016/j.ultsonch.2022.106108] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 07/06/2022] [Accepted: 07/28/2022] [Indexed: 05/07/2023]
Abstract
In order to expand the applications of plant protein in food formulations, enhancement of its functionalities is meaningful. Herein, the effects of ultrasonic (20 KHz, 400 W, 20 min)-assisted pH shift (pH 10 and 12) treatment on the structure, interfacial behaviors, as well as the emulsifying and foaming properties of perilla protein isolate (PPI) were investigated. Results showed that the solubility of PPI treated by ultrasonic-assisted pH shift (named UPPI-10/12) exceeded 90 %, which was at least 2 and 1.4 times that of untreated PPI and ultrasound-based PPI. Meanwhile, UPPI-10/12 possessed higher foamability (increasing by at least 1.2 times) and good emulsifying stability. Ultrasonic-assisted pH shift treatment decomposed large PPI aggregates into tiny particles, evident from the dynamic light scattering (DLS) and atomic force microscopy results. Besides, this approach induced a decrease in α-helix of PPI and an increase in β-sheet, which might result in the exposure of the hydrophobic group on the structural surface of PPI, thus leading to the increase of surface hydrophobicity. The smaller size and higher hydrophobicity endowed UPPI-10/12 faster adsorption rate, tighter interfacial structure, and higher elastic modulus at the air- and oil-water interfaces, evident from the cryo-SEM and interfacial dilatational rheological results. Thus, the emulsifying and foaming properties could evidently enhance. This study demonstrated that ultrasonic-assisted pH shift technique was a simple approach to effectively improve the functional performance of PPI.
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Affiliation(s)
- Jing Yang
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Oilseeds Processing, Key Laboratory of Oilseeds Processing, Ministry of Agriculture and Rural Affairs, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, and Hubei Research Center of Oil and Plant Protein Engineering Technology, Wuhan 430062, Hubei, China; School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yuqing Duan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China
| | - Fang Geng
- Key Laboratory of Coarse Cereal Processing (Ministry of Agriculture and Rural Affairs), School of Food and Biological Engineering, Chengdu University, Chengdu 610106, Sichuan, China
| | - Chen Cheng
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Oilseeds Processing, Key Laboratory of Oilseeds Processing, Ministry of Agriculture and Rural Affairs, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, and Hubei Research Center of Oil and Plant Protein Engineering Technology, Wuhan 430062, Hubei, China
| | - Lei Wang
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Oilseeds Processing, Key Laboratory of Oilseeds Processing, Ministry of Agriculture and Rural Affairs, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, and Hubei Research Center of Oil and Plant Protein Engineering Technology, Wuhan 430062, Hubei, China
| | - Jieting Ye
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Oilseeds Processing, Key Laboratory of Oilseeds Processing, Ministry of Agriculture and Rural Affairs, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, and Hubei Research Center of Oil and Plant Protein Engineering Technology, Wuhan 430062, Hubei, China
| | - Haihui Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Dengfeng Peng
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Oilseeds Processing, Key Laboratory of Oilseeds Processing, Ministry of Agriculture and Rural Affairs, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, and Hubei Research Center of Oil and Plant Protein Engineering Technology, Wuhan 430062, Hubei, China.
| | - Qianchun Deng
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Oilseeds Processing, Key Laboratory of Oilseeds Processing, Ministry of Agriculture and Rural Affairs, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, and Hubei Research Center of Oil and Plant Protein Engineering Technology, Wuhan 430062, Hubei, China.
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