1
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Bu K, Huang D, Zhang H, Xu K, Zhu C. Ultrasonic-microwave technique promotes the physicochemical structure of hydrogel and its release characterization of curcumin in vitro. Food Chem 2024; 451:139389. [PMID: 38670023 DOI: 10.1016/j.foodchem.2024.139389] [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: 11/11/2023] [Revised: 04/07/2024] [Accepted: 04/14/2024] [Indexed: 04/28/2024]
Abstract
In this study, soybean protein isolate and hawthorn pectin were mixed to prepare binary hydrogels using ultrasound and microwave techniques. Moderate treatment can not only significantly improve the mechanical strength of the hydrogel, but also increase the tightness of the internal cross-linking. The strengthening of interactions (hydrogen bonds, hydrophobic interactions, and disulfide bonds) was the main reason for this trend. Especially, the ultrasonic-microwave (80 s) treatment hydrogel possessed excellent hardness (33.426 N), water-holding capacity (98.26%), elasticity (G' = 1205 Pa), and a more homogeneous and denser microstructure. In addition, the hydrogel minimized the extent of curcumin loss (21.23%) after 5 weeks of storage. In general, the ultrasonic-microwave technique could significantly promote the physicochemical structure and curcumin bioaccessibility of hydrogels, which showed excellent market prospects in the food industry.
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Affiliation(s)
- Kaixuan Bu
- College of Food Science and Engineering, Shandong Agricultural University, Tai'an 271000, PR China
| | - Dongjie Huang
- College of Food Science and Engineering, Shandong Agricultural University, Tai'an 271000, PR China
| | - Hao Zhang
- College of Food Science and Engineering, Shandong Agricultural University, Tai'an 271000, PR China
| | - Kang Xu
- College of Food Science and Engineering, Shandong Agricultural University, Tai'an 271000, PR China.
| | - Chuanhe Zhu
- College of Food Science and Engineering, Shandong Agricultural University, Tai'an 271000, PR China.
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2
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Dumitriu C, Pandele AM, Mîndroiu MV, Lazar OA, Popp A, Enachescu M, Buica GO. Electrochemical detection of anti-tissue transglutaminase antibody using quantum dots-doped polypyrrole-modified electrode. Mikrochim Acta 2024; 191:543. [PMID: 39153033 PMCID: PMC11330391 DOI: 10.1007/s00604-024-06620-w] [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: 06/11/2024] [Accepted: 08/07/2024] [Indexed: 08/19/2024]
Abstract
A nanohybrid-modified glassy carbon electrode based on conducting polypyrrole doped with carbon quantum dots (QDs) was developed and used for the electrochemical detection of anti-tissue transglutaminase (anti-tTG) antibodies. To improve the polypyrrole conductivity, carrier mobility, and carrier concentration, four types of carbon nanoparticles were tested. Furthermore, a polypyrrole-modified electrode doped with QDs was functionalized with a PAMAM dendrimer and transglutaminase 2 protein by cross-linking with N-hydroxysuccinimide (NHS)/N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride (EDC). The steps of electrode surface modification were surveyed via electrochemical measurements (differential pulse voltammetry (DPV), impedance spectroscopy, and X-ray photoelectron spectroscopy (XPS)). The surface characteristics were observed by scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, and contact angle measurements. The obtained modified electrode exhibited good stability and repeatability. DPV between - 0.1 and 0.6 V (vs. Ag/AgCl 3 M KCl reference electrode) was used to evaluate the electrochemical alterations that occur after the antibody interacts with the antigen (transglutaminase 2 protein), for which the limit of detection was 0.79 U/mL. Without the use of a secondary label, (anti-tTG) antibodies may be detected at low concentrations because of these modified electrode features.
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Affiliation(s)
- Cristina Dumitriu
- National University of Science and Technology Politehnica Bucharest, 313 Splaiul Independentei, Sector 6, 060042, Bucharest, Romania
| | - Andreea Madalina Pandele
- National University of Science and Technology Politehnica Bucharest, 313 Splaiul Independentei, Sector 6, 060042, Bucharest, Romania
| | - Mihaela Vasilica Mîndroiu
- National University of Science and Technology Politehnica Bucharest, 313 Splaiul Independentei, Sector 6, 060042, Bucharest, Romania
| | - Oana-Andreea Lazar
- Center for Surface Science and Nanotechnology, National University of Science and Technology Politehnica Bucharest, 313 Splaiul Independentei, Sector 6, 060042, Bucharest, Romania
| | - Alina Popp
- National Institute for Mother and Child Health "Alessandrescu-Rusescu", 120 Lacul Tei Boulevard, Sector 2, 020395, Bucharest, Romania
| | - Marius Enachescu
- Center for Surface Science and Nanotechnology, National University of Science and Technology Politehnica Bucharest, 313 Splaiul Independentei, Sector 6, 060042, Bucharest, Romania
- Academy of Romanian Scientists, Splaiul Independentei 54, 050094, Bucharest, Romania
| | - George-Octavian Buica
- National University of Science and Technology Politehnica Bucharest, 313 Splaiul Independentei, Sector 6, 060042, Bucharest, Romania.
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3
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Jeong HE, Lee CJ, Min SC. Improvement of jelly 3D printing using ultrasound treatment and calcium chloride. Food Sci Biotechnol 2024; 33:2551-2557. [PMID: 39144194 PMCID: PMC11319576 DOI: 10.1007/s10068-024-01517-z] [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: 08/24/2023] [Revised: 12/22/2023] [Accepted: 01/02/2024] [Indexed: 08/16/2024] Open
Abstract
This study investigated the effects of ultrasound treatment or calcium chloride (CaCl2) addition on the physical properties of jelly formulations. Elastic modulus (G'), loss modulus (G"), tan δ, shear modulus, yield stress (τ0), phase angle (δ), and gel strength were the parameters selected to describe the requirements of jelly printing, such as fidelity, shape retention, and extrudability. Ultrasound treatment of the jelly formulation without pectin increased the G' and shear moduli values, while decreasing the δ and gel strength. The addition of CaCl2 to the jelly formulation with pectin increased the G', G", shear modulus, τ0, and gel strength but lowered the tan δ and δ values. Both ultrasound treatment and CaCl2 addition improved the jelly printing requirements and demonstrated the potential to control the physical properties of jelly formulations for 3D printing using fused deposition modeling.
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Affiliation(s)
- Ha Eun Jeong
- Department of Food Science and Technology, Seoul Women’s University, Seoul, 01797 Republic of Korea
| | - Chang Joo Lee
- Department of Food Science and Biotechnology, Wonkwang University, Iksan, Jeonbuk 54538 Republic of Korea
| | - Sea Cheol Min
- Department of Food Science and Technology, Seoul Women’s University, Seoul, 01797 Republic of Korea
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4
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Gharibzahedi SMT, Altintas Z. Integrated ultrasonic-transglutaminase modification of lesser mealworm protein isolate: A pioneering cobalamin delivery vehicle in gluten-free breads. Food Chem 2024; 448:139069. [PMID: 38574712 DOI: 10.1016/j.foodchem.2024.139069] [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: 12/21/2023] [Revised: 02/22/2024] [Accepted: 03/16/2024] [Indexed: 04/06/2024]
Abstract
A combined approach of microbial transglutaminase (MTGase) crosslinking and high-intensity ultrasound (HIU) was implemented to improve the physicochemical, rheological, structural, and thermal properties, as well as the targeted release of vitamin B12 of lesser mealworm protein isolate (LMPI)-based gels. Prolonging HIU to 60 min significantly reduced LMPIs' size, polydispersity, zeta-potential, and fluorescence intensity while increasing surface hydrophobicity, free amino (FAGs), and sulfhydryl (FSGs) groups. The MTGase-catalyzed LMPI gels effectively decreased the content of FAGs and FSGs. LMPI gels from 60 and 75 min HIU and MTGase catalysis exhibited a shear-thinning flow behavior, superior thermal stability, and improved water retention and gel strength with the most controlled release of vitamin B12 during in vitro simulated gastrointestinal digestion. Incorporating freeze-dried gel powders from 60 min HIU-treated MTGase-catalyzed LMPI and pea protein isolate into the dough of a new gluten-free bread improved physicochemical, textural, and sensory properties, with notable vitamin B12 retention rate.
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Affiliation(s)
- Seyed Mohammad Taghi Gharibzahedi
- Division of Bioinspired Materials and Biosensor Technologies, Institute of Materials Science, Faculty of Engineering, Kiel University, 24143 Kiel, Germany
| | - Zeynep Altintas
- Division of Bioinspired Materials and Biosensor Technologies, Institute of Materials Science, Faculty of Engineering, Kiel University, 24143 Kiel, Germany; Kiel Nano, Surface and Interface Science (KiNSIS), Kiel University, 24118 Kiel, Germany.
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5
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Li J, Wang X, Chang C, Gu L, Su Y, Yang Y, Agyei D, Han Q. Chicken Egg White Gels: Fabrication, Modification, and Applications in Foods and Oral Nutraceutical Delivery. Foods 2024; 13:1834. [PMID: 38928777 PMCID: PMC11202995 DOI: 10.3390/foods13121834] [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: 05/10/2024] [Revised: 06/07/2024] [Accepted: 06/07/2024] [Indexed: 06/28/2024] Open
Abstract
Chicken egg white (EW) proteins possess various useful techno-functionalities, including foaming, gelling or coagulating, and emulsifying. The gelling property is one of the most important functionalities of EW proteins, affecting their versatile applications in the food and pharmaceutical industries. However, it is challenging to develop high-quality gelled foods and innovative nutraceutical supplements using native EW and its proteins. This review describes the gelling properties of EW proteins. It discusses the development and action mechanism of the physical, chemical, and biological methods and exogenous substances used in the modification of EW gels. Two main applications of EW gels, i.e., gelling agents in foods and gel-type carriers for nutraceutical delivery, are systematically summarized and discussed. In addition, the research and technological gaps between modified EW gels and their applications are highlighted. By reviewing the new modification strategies and application trends of EW gels, this paper provides insights into the development of EW gel-derived products with new and functional features.
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Affiliation(s)
- Junhua Li
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, China
| | - Xuechun Wang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Cuihua Chang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Luping Gu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yujie Su
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yanjun Yang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China
| | - Dominic Agyei
- Department of Food Science, University of Otago, Dunedin 9054, New Zealand
| | - Qi Han
- School of Science, STEM College, RMIT University, Melbourne, VIC 3000, Australia
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6
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Sun W, Bu K, Meng H, Zhu C. Hawthorn pectin/soybean isolate protein hydrogel bead as a promising ferrous ion-embedded delivery system. Colloids Surf B Biointerfaces 2024; 237:113867. [PMID: 38522284 DOI: 10.1016/j.colsurfb.2024.113867] [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: 01/18/2024] [Revised: 03/05/2024] [Accepted: 03/19/2024] [Indexed: 03/26/2024]
Abstract
In this study, hydrogel beads [SPI/HP-Fe (II)] were prepared by cross-linking soybean isolate protein (SPI) and hawthorn pectin (HP) with ferrous ions as a backbone, and the effects of ultrasound and Fe2+ concentration on the mechanical properties and the degree of cross-linking of internal molecules were investigated. The results of textural properties and water-holding capacity showed that moderate ultrasonic power and Fe2+ concentration significantly improved the stability and water-holding capacity of the hydrogel beads and enhanced the intermolecular interactions in the system. Scanning electron microscopy (SEM) confirmed that the hydrogel beads with 60% ultrasonic power and 8% Fe2+ concentration had a denser network. X-ray photoelectron spectroscopy (XPS) and atomic absorption experiments demonstrated that ferrous ions were successfully loaded into the hydrogel beads with an encapsulation efficiency of 82.5%. In addition, in vitro, simulated digestion experiments were performed to understand how the encapsulated Fe2+ is released from the hydrogel beads, absorbed, and utilized in the gastrointestinal environment. The success of the experiments demonstrated that the hydrogel beads were able to withstand harsh environments, ensuring the bioactivity of Fe2+ and improving its bioavailability. In conclusion, a novel and efficient ferrous ion delivery system was developed using SPI and HP, demonstrating the potential application of SPI/HP-Fe (II) hydrogel beads as an iron supplement to overcome the inefficiency of intake of conventional iron supplements.
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Affiliation(s)
- Wenxian Sun
- College of Food Science and Engineering, Shandong Agricultural University, Tai'an 271000, PR China
| | - Kaixuan Bu
- College of Food Science and Engineering, Shandong Agricultural University, Tai'an 271000, PR China
| | - Huangmei Meng
- College of Food Science and Engineering, Shandong Agricultural University, Tai'an 271000, PR China.
| | - Chuanhe Zhu
- College of Food Science and Engineering, Shandong Agricultural University, Tai'an 271000, PR China.
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7
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Florowska A, Florowski T, Kruszewski B, Janiszewska-Turak E, Bykowska W, Ksibi N. Thermal and Modern, Non-Thermal Method Induction as a Factor of Modification of Inulin Hydrogel Properties. Foods 2023; 12:4154. [PMID: 38002211 PMCID: PMC10670224 DOI: 10.3390/foods12224154] [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: 10/13/2023] [Revised: 11/11/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023] Open
Abstract
The aim of the study was to compare the properties of inulin hydrogels obtained with different methods, e.g., the traditional-thermal method and new, non-thermal methods, used in food production, like ultrasonic, high-pressure homogenization (HPH), and high hydrostatic pressures (HHPs). It was found that each of the compared induction methods allowed for obtaining inulin hydrogels. However, the use of non-thermal induction methods allows for obtaining a gel structure faster than in the case of thermal induction. In addition, hydrogels obtained with new, non-thermal methods differ from gels obtained with thermal treatment. They were characterized by higher stability (from 1.7 percent point-of-stability parameters for HHP 150 MPa to 18.8 for HPH II cycles) and in most cases, by improved microrheological properties-lower solid-liquid balance toward the solid phase, increased elasticity and viscosity indexes, and lowering the flow index. The gels obtained with the new, non-thermal method were also characterized by a more delicate structure, including lower firmness (the differences between thermal and non-thermal inductions were from 0.73 N for HHP at 500 MPa to 2.39 N for HHP at 150 MPa) and spreadability (the differences between thermal and non-thermal inductions were from 7.60 Ns for HHP at 500 MPa to 15.08 Ns for HHP at 150 MPa). The color of ultrasound-induced inulin gels, regarding the HPH and HHP technique, was darker (the differences in the L* parameter between thermal and non-thermal inductions were from 1.92 for HHP at 500 MPa to 4.37 for 10 min ultrasounds) and with a lower a* color parameter (the differences in the a* parameter between thermal and non-thermal inductions were from 0.16 for HHP at 500 MPa to 0.39 for HPH II cycles) and b* color parameter (the differences in the b* parameter between thermal and non-thermal inductions were from 1.69 for 5 min ultrasounds to 2.68 for HPH II cycles). It was also found that among the compared induction methods, the high-pressure technique has the greatest potential for modifying the properties of the created inulin hydrogels. Thanks to its application, depending on the amount of applied pressure, it was possible to obtain gels with very different characteristics, both delicate (i.e., soft and spreadable), using HHP at 150 MPa, and hard, using HHP at 500 MPa, the closest in characteristics to gels induced with the thermal method. This may allow the properties of hydrogels to be matched to the characteristics of the food matrix being created.
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Affiliation(s)
- Anna Florowska
- Department of Food Technology and Assessment, Institute of Food Sciences, Warsaw University of Life Sciences-SGGW, 159c Nowoursynowska Street, 02-787 Warsaw, Poland; (T.F.); (B.K.); (W.B.)
| | - Tomasz Florowski
- Department of Food Technology and Assessment, Institute of Food Sciences, Warsaw University of Life Sciences-SGGW, 159c Nowoursynowska Street, 02-787 Warsaw, Poland; (T.F.); (B.K.); (W.B.)
| | - Bartosz Kruszewski
- Department of Food Technology and Assessment, Institute of Food Sciences, Warsaw University of Life Sciences-SGGW, 159c Nowoursynowska Street, 02-787 Warsaw, Poland; (T.F.); (B.K.); (W.B.)
| | - Emilia Janiszewska-Turak
- Department of Food Engineering and Process Management, Institute of Food Sciences, Warsaw University of Life Sciences-SGGW, 159c Nowoursynowska Street, 02-787 Warsaw, Poland;
| | - Weronika Bykowska
- Department of Food Technology and Assessment, Institute of Food Sciences, Warsaw University of Life Sciences-SGGW, 159c Nowoursynowska Street, 02-787 Warsaw, Poland; (T.F.); (B.K.); (W.B.)
| | - Nour Ksibi
- Faculty of Sciences of Tunis, Tunis El Manar University, El Manar Tunis 2092, Tunisia
- Laboratory of Aromatic and Medicinal Plants (LPAM), Centre of Biotechnology of Borj Cedria, BP. 901, Hammam-Lif 2050, Tunisia
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8
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Ahmadzadeh-Hashemi S, Varidi M, Nooshkam M. Hydro- and aerogels from quince seed gum and gelatin solutions. Food Chem X 2023; 19:100813. [PMID: 37780320 PMCID: PMC10534173 DOI: 10.1016/j.fochx.2023.100813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 07/15/2023] [Accepted: 07/24/2023] [Indexed: 10/03/2023] Open
Abstract
The composite hydro/aerogels were designed using gelatin and quince seed gum (QSG) at total polymer concentration (TPC) of 1, 1.5 and 2% and gelatin/QSG ratio of 1:0, 1:0.5 and 1:1. The gel syneresis decreased significantly with increase in TPC and QSG. Although, hydrogels with 2% TPC had remarkably higher gel strength and elasticity than 1% TPC ones, the addition of high levels of QSG to the gelatin (i.e., gelatin/QSG 1:1) led to a decrease in its gel strength (∼0.97-fold) and elasticity (∼3,463-fold). The temperature-sweep test showed higher melting points in gelatin/QSG hydrogels (>60 °C) compared to the gelatin ones (∼58 °C). Additionally, QSG addition to the gelatin led to more porous networks with higher gel strength, thermal stability, and crystallinity, as observed by scanning electron microscopy, differential scanning calorimetry, and X-ray diffractometer. Therefore, QSG could be used as a natural hydrocolloid to modify gelatin functionality.
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Affiliation(s)
- Saba Ahmadzadeh-Hashemi
- Department of Food Science and Technology, Faculty of Agriculture, Ferdowsi University of Mashhad (FUM), Mashhad, Iran
| | - Mehdi Varidi
- Department of Food Science and Technology, Faculty of Agriculture, Ferdowsi University of Mashhad (FUM), Mashhad, Iran
| | - Majid Nooshkam
- Department of Food Science and Technology, Faculty of Agriculture, Ferdowsi University of Mashhad (FUM), Mashhad, Iran
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Dong X, Zhang YQ. A Novel Mechanically Robust and Biodegradable Egg White Hydrogel Membrane by Combined Unidirectional Nanopore Dehydration and Annealing. Int J Mol Sci 2023; 24:12661. [PMID: 37628842 PMCID: PMC10454319 DOI: 10.3390/ijms241612661] [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: 06/29/2023] [Revised: 08/06/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
A homogeneous egg white obtained by high-speed shearing and centrifugation was dehydrated into a fragile and water-soluble egg white glass (EWG) by unidirectional nanopore dehydration (UND). After EWG annealing, it can become an egg white hydrogel membrane (EWHM) that is water-insoluble, flexible, biocompatible, and mechanically robust. Its tensile strength, elongation at break, and the swelling ratio are about 5.84 MPa, 50-110%, and 60-130%, respectively. Protein structure analysis showed that UND caused the rearrangement of the protein molecules to form EWG with random coil and α-helix structures. The thermal decomposition temperature of the EWG was 309.25 °C. After EWG annealing at over 100 or 110 °C for 1.0 h or 45 min, the porous network EWHM was mainly composed of β-sheet structures, and the thermal decomposition temperature increased to 317.25-318.43 °C. Their 12-day residues in five proteases ranged from 1% to 99%, and the order was pepsin > neutral protease > papain > trypsin > alkaline protease. Mouse fibroblast L929 cells can adhere, grow, and proliferate well on these EWHMs. Therefore, the combined technology of UND and annealing for green and novel processing of EWHM has potential applications in the field of biomimetic and biomedical materials.
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Affiliation(s)
- Xuan Dong
- School of Biology and Basic Medical Sciences, Medical College, Soochow University, RM702-2303, No. 199, Renai Road, Industrial Park, Suzhou 215123, China;
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, RM702-2303, No. 199, Renai Road, Industrial Park, Suzhou 215123, China
| | - Yu-Qing Zhang
- School of Biology and Basic Medical Sciences, Medical College, Soochow University, RM702-2303, No. 199, Renai Road, Industrial Park, Suzhou 215123, China;
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Chen CC, Kao MC, Chen CJ, Jao CH, Hsieh JF. Improvement of enzymatic cross-linking of ovalbumin and ovotransferrin induced by transglutaminase with heat and reducing agent pretreatment. Food Chem 2023; 409:135281. [PMID: 36586251 DOI: 10.1016/j.foodchem.2022.135281] [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: 10/05/2022] [Revised: 11/27/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022]
Abstract
The effects of transglutaminase (TGase, 1.0 unit/mL) with heat (95 °C, 5 min), 2-mercaptoethanol (2-ME, 0.83 %), and l-cysteine (l-Cys, 50 mM) pretreatment on the cross-linking of ovalbumin (OVA) and ovotransferrin (OVT) were investigated. SDS-PAGE revealed that although the polymerization of OVA and OVT did not occur after 3 h of incubation at 40 °C with TGase, OVA polymerized into high molecular weight polymers following TGase with 2-ME and heat pretreatment after 3 h of incubation. The surface hydrophobicity and reactive sulfhydryl (SH) groups of OVA samples significantly increased from 4065.7 ± 136.7 and 89.3 ± 1.2 SH groups (μmol/g) to 31483.6 ± 342.7 and 119.5 ± 3.7 SH groups (μmol/g), respectively. Similar results were obtained for OVT with TGase and l-Cys pretreatment and a 3-h incubation at 40 °C. The use of TGase, a reducing agent, and/or heat pretreatment can be used for the polymerization of OVA and OVT.
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Affiliation(s)
- Chun-Chi Chen
- Ph.D. Program in Nutrition and Food Science, Fu Jen Catholic University, New Taipei City 242, Taiwan
| | - Ming-Ching Kao
- Department of Food Science, Fu Jen Catholic University, New Taipei City 242, Taiwan
| | - Chao-Jung Chen
- Ph.D. Program in Nutrition and Food Science, Fu Jen Catholic University, New Taipei City 242, Taiwan
| | - Cheng-Hsun Jao
- Department of Food Science, Fu Jen Catholic University, New Taipei City 242, Taiwan
| | - Jung-Feng Hsieh
- Ph.D. Program in Nutrition and Food Science, Fu Jen Catholic University, New Taipei City 242, Taiwan; Department of Food Science, Fu Jen Catholic University, New Taipei City 242, Taiwan.
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11
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Facile construction of fruit protein based natural hydrogel via intra/inter molecular cross-linking. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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12
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Bashash M, Varidi M, Varshosaz J. Composite Hydrogel-Embedded Sucrose Stearate Niosomes: Unique Curcumin Delivery System. FOOD BIOPROCESS TECH 2022. [DOI: 10.1007/s11947-022-02857-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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