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Zhao J, Yuan H, Chen Y, Fang X, Li Y, Yao H, Li W. Soy protein isolate-catechin complexes conjugated by pre-heating treatment for enhancing emulsifying properties: Molecular structures and binding mechanisms. Int J Biol Macromol 2024; 267:131157. [PMID: 38552684 DOI: 10.1016/j.ijbiomac.2024.131157] [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: 01/03/2024] [Revised: 03/21/2024] [Accepted: 03/25/2024] [Indexed: 04/22/2024]
Abstract
This study aimed to investigate the impact of different pre-heating temperatures (ranging from 40 °C to 80 °C) on the interactions between soy protein isolate (SPI) and catechin to effectively control catechin encapsulation efficiency and optimize the emulsifying properties of soy protein isolate. Results showed that optimal heat treatment at 70 °C improved catechin encapsulation efficiency up to 93.71 ± 0.14 %, along with the highest solubility, enhanced emulsification activity index and improved thermal stability of the protein. Multiple spectroscopic techniques revealed that increasing pretreatment temperature (from 40 °C to 70 °C) altered the secondary structures of SPI, resulting in a more stable unfolded structure for the composite system with a significant increase in α-helical structures and a decrease in random coil and β-sheet structures. Moreover, optimal heat treatment also leads to an augmentation of free sulfhydryl groups within complex as well as exposure of more internal chromophore amino acids on molecular surface. Size-exclusion high-performance liquid chromatography and SDS-PAGE analysis indicated that the band intensity of newly formed high-molecular-weight soluble macromolecules (>180 kDa) increased as the pre-heating temperature rose. Furthermore, fluorescence spectroscopy and molecular docking analysis suggest that hydrophobic and covalent interactions were involved in complex formation, which intensified with increasing temperature.
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Affiliation(s)
- Juyang Zhao
- Postdoctoral Programme of Meteria Medical Institute, Harbin University of Commerce, Harbin 150028, China; College of Tourism and Cuisine, Harbin University of Commerce, Harbin, Heilongjiang 150028, China.
| | - Huiping Yuan
- School of Food Science and Engineering, Zhengzhou University of Science and Technology, Zhengzhou, Henan 450064, China
| | - Yiyu Chen
- College of Tourism and Cuisine, Harbin University of Commerce, Harbin, Heilongjiang 150028, China
| | - Xuwei Fang
- College of Tourism and Cuisine, Harbin University of Commerce, Harbin, Heilongjiang 150028, China
| | - Yuqi Li
- College of Tourism and Cuisine, Harbin University of Commerce, Harbin, Heilongjiang 150028, China
| | - Hengzhe Yao
- Culinary Arts Department, Qingdao Vocational and Technical College of Hotel Management, Qingdao, Shandong 266100, China
| | - Wenlan Li
- Postdoctoral Programme of Meteria Medical Institute, Harbin University of Commerce, Harbin 150028, China.
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Xiong Z, Wang W, Ma X, Zhang X, Wu Z, Yang A, Wu Y, Meng X, Chen H, Li X. Development of a Two-Step Hydrolysis Hypoallergenic Cow's Milk Formula and Evaluation of Residue Allergenicity by Peptidomics and Immunoreactivity Analysis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:12237-12249. [PMID: 37531557 DOI: 10.1021/acs.jafc.3c01221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
Abstract
Cow's milk allergy (CMA) is an abnormal immune response that severely affects the nutritional supplementation of allergic infants. Currently, only a limited number of hypoallergenic formulas are available on the market, and these are only categorized according to their degree of hydrolysis, which still poses an allergy risk and cannot be consumed by CMA patients, especially infants. To address this issue, we developed a two-step hydrolysis hypoallergenic formula targeting destruction of allergen epitope from whey protein. Then, a comprehensive evaluation system was constructed, including peptidomics analysis, in vivo and in vitro allergenicity assessments, revealing allergic changes in the product from the epitope structure level to the immunological level. The results showed that 97.14% of hydrolyzed peptides from α-lactalbumin and β-lactoglobulin did not contain allergenic epitopes after treatment with trypsin and flavourzyme. In vitro and in vivo allergenicity assessment results confirmed that the two-step hydrolysis method effectively reduced the allergenicity of whey protein. Compared with the common milk powder, the hypoallergenic formula induced lower levels of basophil degranulation and relieved the body's anaphylactic symptoms caused by cow milk. This study provides a promising solution to the limited hypoallergenic formula problem and may benefit allergic infants who require nutritional supplements.
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Affiliation(s)
- Ziyi Xiong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, China
| | - Wenjie Wang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, China
| | - Xin Ma
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, China
| | - Xing Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, China
| | - Zhihua Wu
- School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Sino-German Joint Research Institute, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, China
| | - Anshu Yang
- School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Sino-German Joint Research Institute, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, China
| | - Yong Wu
- School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Sino-German Joint Research Institute, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, China
| | - Xuanyi Meng
- School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Sino-German Joint Research Institute, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, China
| | - Hongbing Chen
- School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Sino-German Joint Research Institute, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, China
| | - Xin Li
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, China
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Carrera-Alvarado G, Toldrá F, Mora L. Bile acid-binding capacity of peptide extracts obtained from chicken blood hydrolysates using HPLC. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.114381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Shi YJ, Zhao XH. Impact of the Plastein Reaction of Casein Hydrolysates in the Presence of Exogenous Amino Acids on Their Anti-Inflammatory Effect in the Lipopolysaccharide-Stimulated Macrophages. Foods 2022; 11:196. [PMID: 35053927 PMCID: PMC8775256 DOI: 10.3390/foods11020196] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 12/31/2021] [Accepted: 01/11/2022] [Indexed: 02/01/2023] Open
Abstract
In this study, papain-generated casein hydrolysates (CH) with a degree of hydrolysis of 13.7% were subjected to a papain-mediated plastein reaction in the absence or presence of one of the exogenous amino acids-Gly, Pro, and Hyp-to prepare four plastein modifiers, or mixed with one of three amino acids to prepare three mixtures. The assay results confirmed that the reaction reduced free NH2 for the modifiers and caused amino acid incorporation and peptide condensation. When RAW264.7 macrophages were exposed to the CH, modifiers, and mixtures, these samples promoted macrophage growth and phagocytosis in a dose-dependent manner. In addition, the CH shared similar activity in the cells as the mixtures, while the modifiers (especially the PCH-Hyp prepared with Hyp addition) exerted higher potential than CH, the mixtures, and PCH (the modifier prepared without amino acid addition). The plastein reaction thus enhanced CH bioactivity in the cells. When RAW264.7 macrophages were stimulated with lipopolysaccharide (LPS), the inflammatory cells produced more lactate dehydrogenase (LDH) release and reactive oxygen species (ROS) formation, and caused more four inflammatory mediators (NO, PGE2, TNF-α, and IL-6) and two anti-inflammatory mediators (TGF-β1 and IL-10). However, the PCH-Hyp, PCH, and CH at dose levels of 100 μg/mL could combat against the LPS-induced inflammation. Overall, the PCH-Hyp was more active than the CH and PCH in reducing LDH release, ROS formation, and the secretion of these inflammatory mediators, or in increasing the secretion of the anti-inflammatory mediators. The qPCR and Western blot analysis results further confirmed that these samples had anti-inflammatory effects on the stimulated cells by suppressing the LPS-induced activation of the NF-κB signaling pathway, via regulating the mRNA/miRNA expression of iNOS, IL-6, TNF-α, IL-1β, COX-2, TLR4, IL-10, TGF-β1, miR-181a, miR-30d, miR-155, and miR-148, as well as the protein expression of MyD88, p-IKKα, p-IκBα, p-NF-κB p65, and iNOS, involved in this signaling pathway. In addition, the immunofluorescence assay results revealed that these samples could block the LPS-mediated nuclear translocation of the p65 protein and displayed the same function as the NF-κB inhibitor BAY 11-7082. It was concluded that CH could be endowed with higher anti-inflammatory activity to the macrophages by performing a plastein reaction, particularly that in the presence of exogenous Hyp.
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Affiliation(s)
- Yun-Jiao Shi
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, China;
| | - Xin-Huai Zhao
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, China;
- School of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
- Research Centre of Food Nutrition and Human Healthcare, Guangdong University of Petrochemical Technology, Maoming 525000, China
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Li Q, Fu Y, Zhang L, Otte J, Lametsch R. Plastein from hydrolysates of porcine hemoglobin and meat using Alcalase and papain. Food Chem 2020; 320:126654. [PMID: 32222661 DOI: 10.1016/j.foodchem.2020.126654] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 02/28/2020] [Accepted: 03/19/2020] [Indexed: 11/26/2022]
Abstract
Plastein is defined as a protease-induced peptide aggregate and has been explored for over a century. This study investigated the effects of Alcalase and papain on plastein formation in protein hydrolysates of porcine hemoglobin and meat by measuring turbidity, particle size distribution, free amino groups and chemical interactions, as well as identifying the soluble peptides remaining in solution by LC-MS/MS. The results showed that Alcalase induced more peptide aggregation than papain in terms of increases in turbidity and particle size. Porcine hemoglobin was better than meat in inducing plastein formation in a short reaction time. Besides, covalent bonds involving peptide bonds and disulfide bonds were not crucial in the plastein reaction, instead a high proportion of hydrophobic interactions dominated the plastein. Not all peptides of both hydrolysates took part in plastein formation, and the regions of sequence that were prone to aggregation were visualized by Peptigram.
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Affiliation(s)
- Qian Li
- Department of Food Science, University of Copenhagen, 1958 Frederiksberg C, Denmark
| | - Yu Fu
- Department of Food Science, University of Copenhagen, 1958 Frederiksberg C, Denmark
| | - Longteng Zhang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Jeanette Otte
- Department of Food Science, University of Copenhagen, 1958 Frederiksberg C, Denmark
| | - René Lametsch
- Department of Food Science, University of Copenhagen, 1958 Frederiksberg C, Denmark.
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Gao D, Guo P, Cao X, Ge L, Ma H, Cheng H, Ke Y, Chen S, Ding G, Feng R, Qiao Z, Bai J, Nordin NI, Ma Z. Improvement of chicken plasma protein hydrolysate angiotensin I-converting enzyme inhibitory activity by optimizing plastein reaction. Food Sci Nutr 2020; 8:2798-2808. [PMID: 32566197 PMCID: PMC7300043 DOI: 10.1002/fsn3.1572] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 02/21/2020] [Accepted: 03/22/2020] [Indexed: 11/06/2022] Open
Abstract
Chicken plasma protein hydrolysate (CPPH) was prepared by trypsin with angiotensin I-converting enzyme (ACE) inhibitory activity of 53.5% ± 0.14% and the degree of hydrolysis (DH) of 16.22% ± 0.21% at 1 mg·ml-1; then, five proteases, including pepsin, trypsin, papain, alcalase, and neutrase, were employed to improve ACE inhibitory ability by catalyzing plastein reaction. The results indicated that trypsin-catalyzed plastein reaction showed the highest ACE inhibitory activity. The exogenous amino acids of leucine, histidine, tyrosine, valine, and cysteine were selected to modify the CPPH. The leucine-modified plastein reaction released the highest ACE inhibitory activity. The effects of four reaction parameters on plastein reaction were studied, and the optimal conditions with the purpose of obtaining the most powerful ACE inhibitory peptides from modified products were obtained by response surface methodology (RSM). The maximum ACE inhibition rate of the modified hydrolysate reached 82.07% ± 0.03% prepared at concentration of hydrolysates of 30%, reaction time of 4.9 hr, pH value of 8.0, temperature of 40°C, and E/S ratio of 5,681.62 U·g-1. The results indicated that trypsin-catalyzed plastein reaction increased ACE inhibitory activity of chicken plasma protein hydrolysates by 28.57%.
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Affiliation(s)
- Dandan Gao
- China‐Malaysia National Joint LaboratoryBiomedical Research CenterNorthwest Minzu UniversityLanzhouP. R. China
- College of Life Sciences and EngineeringNorthwest Minzu UniversityLanzhouP. R. China
| | - Penghui Guo
- China‐Malaysia National Joint LaboratoryBiomedical Research CenterNorthwest Minzu UniversityLanzhouP. R. China
- College of Life Sciences and EngineeringNorthwest Minzu UniversityLanzhouP. R. China
| | - Xin Cao
- College of Life Sciences and EngineeringNorthwest Minzu UniversityLanzhouP. R. China
| | - Lili Ge
- College of Life Sciences and EngineeringNorthwest Minzu UniversityLanzhouP. R. China
| | - Hongxin Ma
- China‐Malaysia National Joint LaboratoryBiomedical Research CenterNorthwest Minzu UniversityLanzhouP. R. China
- College of Life Sciences and EngineeringNorthwest Minzu UniversityLanzhouP. R. China
| | - Hao Cheng
- China‐Malaysia National Joint LaboratoryBiomedical Research CenterNorthwest Minzu UniversityLanzhouP. R. China
- College of Life Sciences and EngineeringNorthwest Minzu UniversityLanzhouP. R. China
| | - Yiqiang Ke
- China‐Malaysia National Joint LaboratoryBiomedical Research CenterNorthwest Minzu UniversityLanzhouP. R. China
- College of Life Sciences and EngineeringNorthwest Minzu UniversityLanzhouP. R. China
| | - Shien Chen
- China‐Malaysia National Joint LaboratoryBiomedical Research CenterNorthwest Minzu UniversityLanzhouP. R. China
- College of Life Sciences and EngineeringNorthwest Minzu UniversityLanzhouP. R. China
| | - Gongtao Ding
- China‐Malaysia National Joint LaboratoryBiomedical Research CenterNorthwest Minzu UniversityLanzhouP. R. China
| | - Ruofei Feng
- China‐Malaysia National Joint LaboratoryBiomedical Research CenterNorthwest Minzu UniversityLanzhouP. R. China
| | - Zilin Qiao
- China‐Malaysia National Joint LaboratoryBiomedical Research CenterNorthwest Minzu UniversityLanzhouP. R. China
| | - Jialin Bai
- China‐Malaysia National Joint LaboratoryBiomedical Research CenterNorthwest Minzu UniversityLanzhouP. R. China
| | - Nurul I. Nordin
- Industrial Biotechnology Research CentreSIRIM BerhadSelangorMalaysia
| | - Zhongren Ma
- China‐Malaysia National Joint LaboratoryBiomedical Research CenterNorthwest Minzu UniversityLanzhouP. R. China
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Idumah CI, Hassan A, Ihuoma DE. Recently emerging trends in polymer nanocomposites packaging materials. POLYM-PLAST TECH MAT 2018. [DOI: 10.1080/03602559.2018.1542718] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Christopher Igwe Idumah
- Enhanced Polymer Engineering Group, Faculty of Chemical Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia
| | - Azman Hassan
- Enhanced Polymer Engineering Group, Faculty of Chemical Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia
| | - David Esther Ihuoma
- Enhanced Polymer Engineering Group, Faculty of Chemical Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia
- Department of TVE, Food and Nutrition Unit, Ebonyi State University, Abakaliki, Nigeria
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Boachie R, Yao S, Udenigwe CC. Molecular mechanisms of cholesterol-lowering peptides derived from food proteins. Curr Opin Food Sci 2018. [DOI: 10.1016/j.cofs.2018.03.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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