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Wang YL, Dai SC, Lian ZT, Cheng XY, Tong XH, Wang H, Li L, Jiang LZ. Polyphenol improve the foaming properties of soybean isolate protein: Structural, physicochemical property changes and application in angel cake. Int J Biol Macromol 2024; 277:134315. [PMID: 39094886 DOI: 10.1016/j.ijbiomac.2024.134315] [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: 05/16/2024] [Revised: 07/09/2024] [Accepted: 07/28/2024] [Indexed: 08/04/2024]
Abstract
With the increasing demand for food foaming, how to enhance the foaming properties of protein has gradually become the research focus. This work studied the effect of synephrine (SY) on foaming properties, structure properties, and physicochemical properties of soybean protein isolate (SPI). When the mass ratio of SY to SPI was 1:2, compared with SPI alone, the foam capacity and foam stability of the SY-SPI complex were significantly enhanced. Optical microscopy and confocal laser scanning microscope showed that the improvement in foaming performance was mainly due to the reduction of bubble size and uniform protein distribution. Circular dichroism spectrum and fluorescence spectra indicated that the hydrogen bond of SPI was destroyed and blue shifted with the addition of SY. What's more, the absolute value of Zeta potential, solubility, and hydrophobicity all increased, while the particle size decreased. As a result of molecular docking, surface hydrogen bonds, Van der Waals forces and hydrophobic interactions are the main driving forces. The addition of SY and SPI improved the specific volume and texture of angel cake. This study shows that SY has the potential to be developed into a new type of blowing agent.
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Affiliation(s)
- Yi-Lun Wang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Shi-Cheng Dai
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Zi-Teng Lian
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Xiao-Yi Cheng
- College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, China
| | - Xiao-Hong Tong
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China
| | - Huan Wang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China.
| | - Liang Li
- College of Food Science, Northeast Agricultural University, Harbin 150030, China.
| | - Lian-Zhou Jiang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
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Tang T, Ninh Le T, Li J, Su Y, Gu L, Chang C, Yang Y. Immunomodulatory activity of ovotransferrin-chlorogenic acid complexes enhanced by high-intensity ultrasound (HIU): A structure-function relationship study. Int J Biol Macromol 2024; 278:134635. [PMID: 39134190 DOI: 10.1016/j.ijbiomac.2024.134635] [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: 06/17/2024] [Revised: 07/21/2024] [Accepted: 08/08/2024] [Indexed: 08/19/2024]
Abstract
This study investigated the impact of high-intensity ultrasound (HIU) treatment on the physiochemical, conformational, and immunomodulatory activity of the OVT-CA complex, emphasizing the structure-function relationship. HIU treatment reduced particle size, improved dispersion, and increased electronegativity of the complex. It facilitated binding between OVT and CA, achieving a maximum degree of 45.22 mg/g CA grafting and reducing interaction time from 2 h to 15 min. HIU-induced cavitation and shear promoted the exposure of -SH and unfolding of OVT, leading to increased surface hydrophobicity of the complex and transformation of its structure from β-sheet to α-helix. Additionally, CA binds to OVT in the C-lobe region, and HIU treatment modulates the intermolecular forces governing the complex formation, particularly by reinforcing hydrogen bonding, hydrophobic interactions, and introducing electrostatic interactions. Furthermore, HIU treatment increased the immunomodulatory activity of the complex, which was attributed to complex structural changes facilitating enhanced cell membrane affinity, antigen recognition, and B-cell epitope availability. Hierarchical cluster and Pearson correlation analysis confirmed that HIU treatment duration had a greater impact than power on both the structure and activity of the complex, and an optimal HIU treatment duration within 30 min was found to be crucial for activity enhancement. Moreover, structural changes, including ζ-potential, particle size/turbidity, and surface hydrophobicity, were closely correlated with immunomodulatory activity. This study highlights the potential application of HIU in developing protein-polyphenol immunomodulatory agents for public health and food nutrition.
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Affiliation(s)
- Tingting Tang
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China; Faculty of Science, National University of Singapore, S14 Science Drive 2, Singapore 117542, Singapore
| | - Thanh Ninh Le
- Faculty of Science, National University of Singapore, S14 Science Drive 2, Singapore 117542, Singapore; Thai Nguyen University of Agriculture and Forestry, Quyet Thang commune, Thai Nguyen city 24119, Viet Nam
| | - Junhua Li
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Yujie Su
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Luping Gu
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Cuihua Chang
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China.
| | - Yanjun Yang
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China.
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Han C, Ren X, Shen X, Yang X, Li L. Improvement of physicochemical properties and quercetin delivery ability of fermentation-induced soy protein isolate emulsion gel processed by ultrasound. ULTRASONICS SONOCHEMISTRY 2024; 107:106902. [PMID: 38797128 PMCID: PMC11139769 DOI: 10.1016/j.ultsonch.2024.106902] [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: 03/18/2024] [Revised: 04/29/2024] [Accepted: 05/07/2024] [Indexed: 05/29/2024]
Abstract
This study aimed to investigate the effects of ultrasonic treatment at different powers on the physicochemical properties, microstructure and quercetin delivery capacity of fermentation-induced soy protein isolate emulsion gel (FSEG). The FSEG was prepared by subjecting soy protein isolate (SPI) emulsion to ultrasonic treatment at various powers (0, 100, 200, 300, and 400 W), followed by lactic acid bacteria fermentation. Compared with the control group (0 W), the FSEG treated with ultrasound had higher hardness, water holding capacity (WHC) and rheological parameters. Particularly, at an ultrasonic power of 300 W, the FSEG had the highest hardness (101.69 ± 4.67 g) and WHC (75.20 ± 1.07%) (p < 0.05). Analysis of frequency sweep and strain scanning revealed that the storage modulus (G') and yield strains of FSEG increased after 300 W ultrasonic treatment. Additionally, the recovery rate after creep recovery test significantly increased from 18.70 ± 0.49% (0 W) to 58.05 ± 0.54% (300 W) (p < 0.05). Ultrasound treatment also resulted in an increased β-sheet content and the formation of a more compact micro-network structure. This led to a more uniform distribution of oil droplets and reduced mobility of water within the gel. Moreover, ultrasonic treatment significantly enhanced the encapsulation efficiency of quercetin in FSEG from 81.25 ± 0.62 % (0 W) to 90.04 ± 1.54% (300 W). The bioaccessibility of quercetin also increased significantly from 28.90 ± 0.40% (0 W) to 42.58 ± 1.60% (300 W) (p < 0.05). This study enriches the induction method of soy protein emulsion gels and provides some references for the preparation of fermented emulsion gels loaded with active substances.
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Affiliation(s)
- Chunpeng Han
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Xinyu Ren
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Xin Shen
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Xiaoyu Yang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China.
| | - Liang Li
- College of Food Science, Northeast Agricultural University, Harbin 150030, China.
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Wang X, Jia L, Xie Y, He T, Wang S, Jin X, Xie F. Deciphering the interaction mechanism between soy protein isolate and fat-soluble anthocyanin on experiments and molecular simulations. Int J Biol Macromol 2024; 266:131308. [PMID: 38569996 DOI: 10.1016/j.ijbiomac.2024.131308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/20/2024] [Accepted: 03/30/2024] [Indexed: 04/05/2024]
Abstract
In this work, the acylated anthocyanin (Ca-An) was prepared by enzymatic modification of black rice anthocyanin with caffeic acid, and the binding mechanism of Ca-An to soybean protein isolate (SPI) was investigated by experiments and computer simulation to expand the potential application of anthocyanin in food industry. Multi-spectroscopic studies revealed that the stable binding of Ca-An to SPI induced the folding of protein polypeptide chain, which transformed the secondary structure of SPI trended to be flexible. The microenvironment of protein was transformed from hydrophobic to hydrophilic, while tyrosine played dominant role in quenching process. The binding sites and forces of the complexes were determined by computer simulation for further explored. The protein conformation of the 7S and 11S binding regions to Ca-An changed, and the amino acid microenvironment shifted to hydrophilic after binding. The results showed that more non-polar amino acids existed in the binding sites, while in binding process van der Waals forces and hydrogen bonding played a major role hydrophobicity played a minor role. Based on MM-PBSA analysis, the binding constants of 7S-Ca-An and 11S-Ca-An were 0.518 × 106 mol-1 and 5.437 × 10-3 mol-1, respectively. This information provides theoretical guidance for further studying the interaction between modified anthocyanins and biomacromolecules.
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Affiliation(s)
- Xinhui Wang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Lingyue Jia
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Yuqi Xie
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Tian He
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Shijiao Wang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Xiaoyu Jin
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Fengying Xie
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
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Wang Y, Yang X, Li L. Formation of pH-responsive hydrogel beads and their gel properties: Soybean protein nanofibers and sodium alginate. Carbohydr Polym 2024; 329:121748. [PMID: 38286537 DOI: 10.1016/j.carbpol.2023.121748] [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: 10/06/2023] [Revised: 12/24/2023] [Accepted: 12/26/2023] [Indexed: 01/31/2024]
Abstract
Hydrogel beads prepared from protein nanofibers are popular because of their safety, sleek appearance, and protection of biologically active substances. However, extreme external environmental variations, such as pH and temperature, can limit their practical application. To meet the application requirements of hydrogel beads in different environments, non-covalent mixtures of CaCl2 cross-linked soybean protein nanofibers (SNF) and sodium alginate (SA) were used to prepare hydrogel beads. In the present study, the hardness (782.48 g) and elasticity of hydrogel beads formed at SNF/SA = 7:3 and CaCl2 concentration of 0.1 mol/L were the maximum. Furthermore, the water content and pH swelling also reached a peak (98.68 %, 43.85 g/g) due to the best morphology and regular internal network structure. Meanwhile, the pH-responsive hydrogel beads with added anthocyanins were able to respond to the ambient pH under different temperatures and pH conditions and maintained color stability during 96 h of storage (ΔE < 5). In this experiment, a pH-responsive hydrogel bead based on soybean protein nanofiber (SNF) and sodium alginate (SA) was prepared by simple ionic crosslinking. It provides a theoretical and experimental basis for the future application of plant protein nanofibers as pH-responsive hydrogel materials.
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Affiliation(s)
- Yuxin Wang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Xiaoyu Yang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China.
| | - Liang Li
- College of Food Science, Northeast Agricultural University, Harbin 150030, China.
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Chen X, Huang J, Chen L, Chen X, Su D, Jin B. High internal phase Pickering emulsions stabilised by ultrasound-induced soy protein-β-glucan-catechin complex nanoparticles to enhance the stability and bioaccessibility of curcumin. J Microencapsul 2023; 40:456-474. [PMID: 37249352 DOI: 10.1080/02652048.2023.2220387] [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: 11/21/2022] [Accepted: 05/26/2023] [Indexed: 05/31/2023]
Abstract
AIMS To evaluate the potential applications of soy protein-glucan-catechin (SGC) complexes prepared with different ultrasound times in stabilising high internal phase Pickering emulsion (HIPPE) and delivering curcumin. METHODS The SGC complexes were characterised by particle size, morphology, zeta potential, Fourier transform infra-red, and fluorescence spectroscopy. Formation and stability of curcumin emulsions were monitored by droplet size, microstructure, rheological property, lipid oxidation, and in vitro digestion. RESULTS Short-time ultrasound-induced complexes (SGC-U15) exhibited a small size and wettability of ∼82.5°. The chemical stability and bioaccessibility of curcumin was greatly improved by SGC-U15-stabilised HIPPEs, even after 70 days of storage, heating at 100 °C for 30 min, ultraviolet irradiation for 120 min, and in vitro digestion, owing to the formation of elastic gel-like structure at the oil/water interfaces. CONCLUSION Our findings may contribute to the design of emulsion-based delivery systems using ultrasound-induced protein-polysaccharide-polyphenol complexes.
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Affiliation(s)
- Xutao Chen
- School of Food & Science Engineering, Lingnan Normal University, Zhanjiang, China
| | - Junrong Huang
- School of Food & Science Engineering, Lingnan Normal University, Zhanjiang, China
| | - Linlin Chen
- School of Food & Science Engineering, Lingnan Normal University, Zhanjiang, China
| | - Xiaona Chen
- School of Food & Science Engineering, Lingnan Normal University, Zhanjiang, China
| | - Danxia Su
- School of Food & Science Engineering, Lingnan Normal University, Zhanjiang, China
| | - Bei Jin
- School of Food & Science Engineering, Lingnan Normal University, Zhanjiang, China
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Li M, Kong J, Chen Y, Li Y, Xuan H, Liu M, Zhang Q, Liu J. Comparative interaction study of soy protein isolate and three flavonoids (Chrysin, Apigenin and Luteolin) and their potential as natural preservatives. Food Chem 2023; 414:135738. [PMID: 36841103 DOI: 10.1016/j.foodchem.2023.135738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 02/15/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023]
Abstract
In this work, the potential of soy protein isolate (SPI)-luteolin (Lut)/apigenin (Ap)/chrysin (Chr) complexes as natural preservatives for food and cosmetics was evaluated by comparing their interactional and functional properties with structure-activity relationship. The results of spectrometry and molecular docking indicated that the B-ring hydroxylation of flavonoids affected their binding constants with SPI, which were determined as Lut (1.45 × 106 L/mol) > Ap (2.04 × 105 L/mol) > Chr (3.81 × 104 L/mol) at 298.15 K. It demonstrated that the hydrogen bonding force played an important role in binding flavonoids to SPI. Moreover, the anti-oxidation ability, antimicrobial effect, and foaming properties were positively correlated with increase in number of hydroxyl groups on the B-ring, but the amount and type of the preservative should be adjusted aimed at the nutrition components. This study provides a theoretical basis for the use of flavonoids and SPI-flavonoid complexes as natural preservatives for food and cosmetics.
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Affiliation(s)
- Mingyuan Li
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, PR China
| | - Jing Kong
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, PR China
| | - Yanrong Chen
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, PR China
| | - Yutong Li
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, PR China
| | - Hongzhuan Xuan
- School of Life Science, Liaocheng University, Liaocheng, Shandong 252059, PR China
| | - Min Liu
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, PR China
| | - Qian Zhang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, PR China.
| | - Jie Liu
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, PR China.
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Chao Song Z, Zhang H, Fei Niu P, Shi LS, Yan Yang X, Hong Meng Y, Yu Wang X, Gong T, Rong Guo Y. Fabrication of a novel antioxidant emulsifier through tuning the molecular interaction between soy protein isolates and young apple polyphenols. Food Chem 2023; 420:136110. [PMID: 37105086 DOI: 10.1016/j.foodchem.2023.136110] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 03/21/2023] [Accepted: 04/03/2023] [Indexed: 04/29/2023]
Abstract
Soy protein isolates (SPI) exhibit weaker emulsifying properties than those of animal proteins, thereby limiting their wide applicability. In this study, a novel plant-based antioxidant emulsifier was developed using SPI and young apple polyphenols (YAP), and its underlying interaction mechanisms were discovered using multispectral technology and molecular docking. YAP physically bound to SPI through hydrogen bonds and hydrophobic interactions, which significantly enhanced the free radicals scavenging, reducing, and metal ion chelating abilities of SPI by introducing free hydroxyl groups. Moreover, SPI modified by YAP exerted better emulsifying performance owing to a looser protein structure, reflected by a higher random coil and a lower α-helix content. In addition, YAP may bridge adjacent SPI molecules, promoting the adsorption and anchoring of SPI at the oil-water interface. SPI-YAP complexes are promising antioxidant emulsifiers that can be used to nano-deliver functional oils and nutrients, thereby broadening SPI and YAP applications in the food industry.
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Affiliation(s)
- Zhi Chao Song
- Engineering Research Center for High-Valued Utilization of Fruit Resources in Western China, Ministry of Education, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China; National Research & Development Center of Apple Processing Technology, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China; College of Food Engineering and Nutritional Science, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China
| | - Huan Zhang
- Engineering Research Center for High-Valued Utilization of Fruit Resources in Western China, Ministry of Education, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China; National Research & Development Center of Apple Processing Technology, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China; College of Food Engineering and Nutritional Science, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China
| | - Peng Fei Niu
- Engineering Research Center for High-Valued Utilization of Fruit Resources in Western China, Ministry of Education, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China; National Research & Development Center of Apple Processing Technology, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China; College of Food Engineering and Nutritional Science, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China
| | - Lin Shan Shi
- Engineering Research Center for High-Valued Utilization of Fruit Resources in Western China, Ministry of Education, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China; National Research & Development Center of Apple Processing Technology, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China; College of Food Engineering and Nutritional Science, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China
| | - Xue Yan Yang
- Engineering Research Center for High-Valued Utilization of Fruit Resources in Western China, Ministry of Education, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China; National Research & Development Center of Apple Processing Technology, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China; College of Food Engineering and Nutritional Science, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China
| | - Yong Hong Meng
- Engineering Research Center for High-Valued Utilization of Fruit Resources in Western China, Ministry of Education, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China; National Research & Development Center of Apple Processing Technology, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China; College of Food Engineering and Nutritional Science, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China
| | - Xiao Yu Wang
- Engineering Research Center for High-Valued Utilization of Fruit Resources in Western China, Ministry of Education, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China; National Research & Development Center of Apple Processing Technology, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China; College of Food Engineering and Nutritional Science, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China
| | - Tian Gong
- Engineering Research Center for High-Valued Utilization of Fruit Resources in Western China, Ministry of Education, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China; National Research & Development Center of Apple Processing Technology, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China; College of Food Engineering and Nutritional Science, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China.
| | - Yu Rong Guo
- Engineering Research Center for High-Valued Utilization of Fruit Resources in Western China, Ministry of Education, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China; National Research & Development Center of Apple Processing Technology, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China; College of Food Engineering and Nutritional Science, Shaanxi Normal University, 620 West Changan Avenue, Changan, Xian 710119, PR China.
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Bai Y, Li X, Xie Y, Wang Y, Dong X, Qi H. Ultrasound treatment enhanced the functional properties of phycocyanin with phlorotannin from Ascophyllum nodosum. Front Nutr 2023; 10:1181262. [PMID: 37090776 PMCID: PMC10115965 DOI: 10.3389/fnut.2023.1181262] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 03/17/2023] [Indexed: 04/08/2023] Open
Abstract
IntroductionPhycocyanin offers advantageous biological effects, including immune-regulatory, anticancer, antioxidant, and anti-inflammation capabilities. While PC, as a natural pigment molecule, is different from synthetic pigment, it can be easily degradable under high temperature and light conditions.MethodsIn this work, the impact of ultrasound treatment on the complex of PC and phlorotannin structural and functional characteristics was carefully investigated. The interaction between PC and phlorotannin after ultrasound treatment was studied by UV–Vis, fluorescence spectroscopy, circular dichroism (CD) spectroscopy, fourier transform infrared (FTIR) spectroscopy. Additionally, the antioxidant potential and in vitro digestibility of the complexes were assessed.ResultsThe result was manifested as the UV–Vis spectrum reduction effect, fluorescence quenching effect and weak conformational change of the CD spectrum of PC. PC was identified as amorphous based on the X-ray diffraction (XRD) data and that phlorotannin was embedded into the PC matrix. The differential scanning calorimetry (DSC) results showed that ultrasound treatment and the addition of phlorotannin could improve the denaturation peak temperatures (Td) of PC to 78.7°C. In vitro digestion and free radical scavenging experiments showed that appropriate ultrasound treatment and the addition of phlorotannin were more resistant to simulated gastrointestinal conditions and could improve DPPH and ABTS+ free radical scavenging performance.DiscussionUltrasound treatment and the addition of phlorotannin changed the structural and functional properties of PC. These results demonstrated the feasibility of ultrasound-assisted phlorotannin from A. nodosum in improving the functional properties of PC and provided a possibility for the application of PC-polyphenol complexes as functional food ingredients or as bioactive materials.
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Affiliation(s)
- Ying Bai
- School of Food Science and Technology, National Engineering Research Center of Seafood, Liaoning Provincial Aquatic Products Deep Processing Technology Research Center, Dalian Polytechnic University, Dalian, China
| | - Xueting Li
- Haide College, Ocean University of China, Qingdao, China
| | - Yuqianqian Xie
- School of Food Science and Technology, National Engineering Research Center of Seafood, Liaoning Provincial Aquatic Products Deep Processing Technology Research Center, Dalian Polytechnic University, Dalian, China
| | - Yingzhen Wang
- School of Food Science and Technology, National Engineering Research Center of Seafood, Liaoning Provincial Aquatic Products Deep Processing Technology Research Center, Dalian Polytechnic University, Dalian, China
| | - Xiuping Dong
- School of Food Science and Technology, National Engineering Research Center of Seafood, Liaoning Provincial Aquatic Products Deep Processing Technology Research Center, Dalian Polytechnic University, Dalian, China
| | - Hang Qi
- School of Food Science and Technology, National Engineering Research Center of Seafood, Liaoning Provincial Aquatic Products Deep Processing Technology Research Center, Dalian Polytechnic University, Dalian, China
- *Correspondence: Hang Qi,
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W/O/W emulsions stabilized with whey protein concentrate and pectin: Effects on storage, pasteurization, and gastrointestinal viability of Lacticaseibacillus rhamnosus. Int J Biol Macromol 2023; 232:123477. [PMID: 36731705 DOI: 10.1016/j.ijbiomac.2023.123477] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/24/2023] [Accepted: 01/25/2023] [Indexed: 02/03/2023]
Abstract
Probiotics have demonstrated various bioactive functions but poor storage and application stability, and encapsulation a promising method of increasing its viability. In this study, whey protein concentrate (WPC) and pectin (PEC) formed non-covalent complexes through electrostatic interaction at pH 3.0. The formed WPC-PEC complexes showed superior particle size, absolute potential, emulsification properties, and structural changes when PEC concentration was >0.8 % (w/v). This made them appropriate as a hydrophilic emulsifier to stabilize W/O/W emulsions. Then, Lacticaseibacillus rhamnosus, one representative of probiotics, was encapsulated in the internal aqueous phase of W/O/W emulsions. We obtained higher encapsulation efficiency (78.49 %) and smaller D4,3 (9.72 μm) with 0.8 % (w/v) PEC concentration. Encapsulation of Lacticaseibacillus rhamnosus in W/O/W emulsions improved its viability under harsh conditions, including 28 days storage at 4 °C, simulated pasteurization, and simulated gastrointestinal digestion. W/O/W emulsions stabilized by WPC-PEC non-covalent complexes further improved the survival of Lacticaseibacillus rhamnosus against various adverse conditions as compared to WPC. These findings suggest that the studied W/O/W emulsions systems have the potential to deliver probiotics in food substrates to enhance their viability during production processing, storage transportation, and digestion.
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Emulsifying properties and oil–water interface properties of succinylated soy protein isolate: Affected by conformational flexibility of the interfacial protein. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2022.108224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Yang S, Lian Z, Wang M, Liao P, Wu H, Cao J, Tong X, Tian T, Wang H, Jiang L. Molecular structural modification of β-conglycinin using pH-shifting with ultrasound to improve emulsifying properties and stability. ULTRASONICS SONOCHEMISTRY 2022; 90:106186. [PMID: 36201932 PMCID: PMC9535325 DOI: 10.1016/j.ultsonch.2022.106186] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 09/21/2022] [Accepted: 09/28/2022] [Indexed: 05/07/2023]
Abstract
This present work underlines the effect of pH-shifting at pH 2 and pH 12 individually or combined with ultrasound treatment to modify the molecular structure of β-conglycinin (7S) on its emulsifying properties and stability. Fourier transform infrared (FTIR) spectroscopy and intrinsic fluorescence spectroscopy showed that pH-shifting improves the molecular structure of 7S, while ultrasound further promotes structural changes. In particular, the pH-shifting at pH 12 combined with ultrasound treatment (U-7S-12) resulted in more significant changes than the pH-shifting at pH 2 combined with ultrasound (U-7S-2). U-7S-12 showed a significant reduction in protein particle size from 152 to 34.77 nm and a relatively smooth protein surface compared to 7S. The protein had the highest surface hydrophobicity and flexibility at 81,560.0 and 0.45, respectively, and the free sulfhydryl content from 1.57 to 2.02 μmol/g. In addition, we characterized the emulsions prepared after 7S treatment. The single or combined treatment increased the interfacial protein adsorption of the samples, which showed lower viscosity and shear stress compared to 7S. The U-7S-12 emulsion exhibited the highest emulsifying properties and was more stable than other emulsions under creaming, heating, and freeze-thaw conditions. In summary, the concerted action of pH-shifting and ultrasound can modify the structure, and combined alkaline pH-shifting and ultrasound treatment can further improve the emulsifying properties and stability of 7S.
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Affiliation(s)
- Sai Yang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Ziteng Lian
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Mengmeng Wang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Peilong Liao
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Haibo Wu
- College of Food Engineering, Beibu Gulf University, Qinzhou 535011, China
| | - Jia Cao
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Xiaohong Tong
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Tian Tian
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Huan Wang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China.
| | - Lianzhou Jiang
- College of Food Science, Northeast Agricultural University, Harbin 150030, China.
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13
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Zhang Y, Zhao W, Xing Z, Zhu B, Hou R, Zhang J, Li T, Zhang Z, Wang H, Li Z. Study on the binding behavior and functional properties of soybean protein isolate and β-carotene. Front Nutr 2022; 9:984490. [PMID: 36159458 PMCID: PMC9493324 DOI: 10.3389/fnut.2022.984490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 08/15/2022] [Indexed: 11/13/2022] Open
Abstract
This study focused on the non-covalent interaction between soybean protein isolate (SPI) and β-carotene (BC). The conformational changes of SPI with β-carotene in varying proportions (BC/SPI: 2%, 4%, 6%, 8%, and 10%) were investigated by multi-spectroscopy and molecular docking. Results showed that the quenching mode is static quenching and binding affinity increased with temperature. The stoichiometry was 1:1, indicating there was only one binding site in SPI. The binding was based on entropy and primarily driven by hydrophobic interactions and its binding constant was in the order of 104 L⋅mol–1. The addition of the β-carotene affected the secondary structure of SPI resulting in an increase in α-Helix and a decrease in random coil and β-turn content, indicating protein aggregated and hydrophobic interactions occurred. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) verified that no new larger molecular weight substance was formed and no covalent interaction existed. Molecular docking corroborated that electrostatic and hydrophobic interactions were both involved in the formation of complexes, where hydrophobic interaction was the dominant one. Moreover, β-carotene improved 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity, foaming capacity, and emulsifying stability of SPI. These findings provide useful information about the interaction mechanism of SPI and β-carotene, which contributes to the further development and application of SPI products rich in β-carotene in the food industry.
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Affiliation(s)
- Yating Zhang
- College of Healthy Science and Engineering, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- *Correspondence: Yating Zhang,
| | - Wenqi Zhao
- College of Healthy Science and Engineering, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Zhuqing Xing
- College of Healthy Science and Engineering, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Beibei Zhu
- College of Chinese Medicine Pharmaceutical Engineering, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Ruiyang Hou
- College of Healthy Science and Engineering, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Junxi Zhang
- College of Healthy Science and Engineering, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Taoran Li
- College of Healthy Science and Engineering, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Zifan Zhang
- College of Healthy Science and Engineering, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Hongwu Wang
- College of Healthy Science and Engineering, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Zheng Li
- College of Chinese Medicine Pharmaceutical Engineering, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Zheng Li,
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14
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Teng J, Zhang C, Xu Z, Li X, Xiao J. Preparation and characterization of the soybean protein isolate – chitosan oligosaccharide Maillard reaction products via wet‐heating. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jing Teng
- College of Food Science and Engineering Qingdao Agricultural University Qingdao People's Republic of China
| | - Chunzhi Zhang
- College of Food Science and Engineering Qingdao Agricultural University Qingdao People's Republic of China
| | - Zhenzhen Xu
- College of Food Science and Engineering Qingdao Agricultural University Qingdao People's Republic of China
- School of Food Science and Engineering South China University of Technology Guangzhou People's Republic of China
| | - Xiaodan Li
- College of Food Science and Engineering Qingdao Agricultural University Qingdao People's Republic of China
| | - Junxia Xiao
- College of Food Science and Engineering Qingdao Agricultural University Qingdao People's Republic of China
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15
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Yu Z, Zhang H, Guo H, Zhang L, Zhang X, Chen Y. High intensity ultrasound-assisted quality enhancing of the marinated egg: Gel properties and in vitro digestion analysis. ULTRASONICS SONOCHEMISTRY 2022; 86:106036. [PMID: 35598513 PMCID: PMC9127680 DOI: 10.1016/j.ultsonch.2022.106036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/03/2022] [Accepted: 05/13/2022] [Indexed: 05/21/2023]
Abstract
In this study, high intensity ultrasonication (HIU) was employed as an efficient tool to improve the gel property and in vitro digestibility of marinated egg (ME). The effects of HIU treatment at 100 W and 200 W for a series of time periods (0.5 h, 1 h, and 2 h) on the textural profiles, structural changes, and microstructures were also studied. After HIU treatment, the springiness and gumminess of ME white were enhanced. The water holding capacity reached the highest point (66.6%) when 0.5 h 200 W HIU was used. It was observed that 100 W HIU led to the highest zeta potential (-12.0 mV) and hydrophobicity (175.35 μg) of ME, indicating a high degree of electrostatic repulsion prevented agglomeration. HIU treatment at 100 W affected the dynamic rheological behaviors by boosting non-covalent bonds, which maintains the gel network's homogeneity. Meanwhile, the decreasing formation of α-helix, in contrast to β-turn, altered the aggregation behaviors of egg white gel. The microstructure of the 200 W HIU treated samples had porous colloidal network structures, and the in vitro digestibility (>75%) was increased after HIU. This work demonstrated that HIU could be a green and cost-effective tool for processing the egg product with high quality.
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Affiliation(s)
- Zhihui Yu
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, Shanxi, China; Insitute of Food Nutrition and Safety, Shanxi Agricultural University, Taiyuan, 030031, Shanxi, China
| | - Huirong Zhang
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, Shanxi, China
| | - Haoran Guo
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, Shanxi, China
| | - Lixin Zhang
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, Shanxi, China
| | - Xiaoyu Zhang
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, Shanxi, China
| | - Yisheng Chen
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, Shanxi, China; Insitute of Food Nutrition and Safety, Shanxi Agricultural University, Taiyuan, 030031, Shanxi, China; Shanxi Key Laboratory of Edible Fungi for Loess Plateau, Taigu 030801, Shanxi, China.
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