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Wang F, Gu X, Lü M, Huang Y, Zhu Y, Sun Y, Zhu X. Structural Analysis and Study of Gel Properties of Thermally-Induced Soybean Isolate-Potato Protein Gel System. Foods 2022; 11:foods11223562. [PMID: 36429154 PMCID: PMC9689681 DOI: 10.3390/foods11223562] [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: 10/08/2022] [Revised: 11/04/2022] [Accepted: 11/05/2022] [Indexed: 11/11/2022] Open
Abstract
Heat-induced composite gel systems consisting of different soybean protein isolate (SPI) and potato protein (PP) mixtures were studied to elucidate their "backbone" and property changes. This was achieved by comparing the ratio of non-network proteins, protein subunit composition, and aggregation of different gel samples. It was revealed that SPI was the "gel network backbone" and PP played the role of "filler" in the SPI-PP composite gel system. Compared with the composite gels at the same ratio, springiness and WHC decrease with PP addition. For hardness, PP addition showed a less linear trend. At the SPI-PP = 2/1 composite gel, hardness was more than doubled, while springiness and WHC did not decrease too much and increased the inter-protein binding. The hydrophobic interactions and electrostatic interactions and hydrogen bonding of the SPI gel system were enhanced. The scanning electron microscopy results showed that the SPI-based gel system was able to form a more compact and compatible gel network. This study demonstrates the use of PP as a potential filler that can effectively improve the gelling properties of SPI, thus providing a theoretical basis for the study of functional plant protein foods.
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MOHAMED AA, HUSSAIN S, ALAMRI MS, IBRAHEEM MA, QASEM AAA, YEHIA H. Camel milk-sweet potato starch gel: steady shear and dynamic rheological properties. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.20021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Agarwal PS, Poddar S, Varshney N, Sahi AK, Vajanthri KY, Yadav K, Parmar AS, Mahto SK. Printability assessment of psyllium husk (isabgol)/gelatin blends using rheological and mechanical properties. J Biomater Appl 2020; 35:1132-1142. [PMID: 33377809 DOI: 10.1177/0885328220979473] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The primary goal of this study is to highlight the rheological and mechanical properties of a new blend composed of naturally-derived hydrogel materials- psyllium husk (PH) and gelatin (G) for its potential use in three-dimensional (3D) printing technology. The mixtures were prepared at various weight ratios of 100PH, 75PH + 25G and 50PH + 50G. A suitable selection of the printable ink was made based on the preliminary screening steps of manual filament drop test and layer stacking by 3D printing. Printing of the common features such as hexagon and square grids helped evaluating shape fidelity of the chosen ink. Although 50PH + 50G blend was found meeting most of the criteria for an ideal 3D printable ink, rheological and mechanical characterizations have been performed for all the ratios of polymeric blends. This study documents the correlation between various factors of rheology that should be taken into account while categorizing any biomaterial as a printable ink. Yield stress was measured as 18.59 ± 4.21 Pa, 268.74 ± 13.56 Pa and 109.16 ± 9.85 Pa for 50PH + 50G, 75PH + 25G and 100PH, respectively. Similarly, consistency index (K) and flow index (n) were calculated using the power law equation and found as 49.303 ± 4.17, 530.59 ± 10.92, 291.82 ± 10.53 and 0.275 ± 0.04, 0.05 ± 0.005, 0.284 ± 0.04 for 50PH + 50G, 75PH + 25G and 100PH, respectively. The loss modulus (G″) was observed dominating over storage modulus (G') for 50PH + 50G, that depicts its liquid-like property; whereas storage modulus (G') was found dominating in case of 75PH + 25G and 100PH, indicating their solid-like characteristics. In addition, the loss tangent value (tan δ) of 50PH + 50G was observed exceeding unity (1.05), supporting its plastic behavior, unlike 75PH + 25G (0.5) and 100PH (0.33) whose loss tangent values were estimated less than unity revealing their elastic behavior. Also, 50PH + 50G was found to have the highest mechanical strength amongst the three blends with a Young's modulus of 9.170 ± 0.0881 kPa.
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Affiliation(s)
- Piyush Sunil Agarwal
- Tissue Engineering and Biomicrofluidics Laboratory, School of Biomedical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, India
| | - Suruchi Poddar
- Tissue Engineering and Biomicrofluidics Laboratory, School of Biomedical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, India
| | - Neelima Varshney
- Tissue Engineering and Biomicrofluidics Laboratory, School of Biomedical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, India
| | - Ajay Kumar Sahi
- Tissue Engineering and Biomicrofluidics Laboratory, School of Biomedical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, India
| | - Kiran Yellappa Vajanthri
- Tissue Engineering and Biomicrofluidics Laboratory, School of Biomedical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, India
| | - Kanchan Yadav
- Tissue Engineering and Biomicrofluidics Laboratory, School of Biomedical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, India
| | - Avanish Singh Parmar
- Tissue Engineering and Biomicrofluidics Laboratory, School of Biomedical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, India
| | - Sanjeev Kumar Mahto
- Tissue Engineering and Biomicrofluidics Laboratory, School of Biomedical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, India
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Pan F, Schneider D, Ryschich E, Qian B, Vollherbst DF, Möhlenbruch MA, Jugold M, Eichwald V, Stenzel P, Pereira PL, Richter GM, Kauczor HU, Sommer CM, Do TD. In Vitro Characterization of a Novel Type of Radiopaque Doxorubicin-Loaded Microsphere. Cardiovasc Intervent Radiol 2020; 43:636-647. [PMID: 31965224 DOI: 10.1007/s00270-020-02407-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 01/05/2020] [Indexed: 11/24/2022]
Abstract
PURPOSE To evaluate and compare the material characteristics of a novel type of radiopaque doxorubicin-loaded microsphere (V-100) with radiopaque and non-radiopaque doxorubicin-loaded microspheres. MATERIALS AND METHODS The prototype V-100 featuring inherent radiopacity and three available commercial controls (DC-Bead-LUMI™-70-150, Embozene-Tandem™-100 and DC-Bead™-M1) were analyzed before and after doxorubicin loading (37.5 mg doxorubicin/1 ml microspheres) in suspension with aqua and/or aqua/iodixanol-320. Study goals included inherent radiopacity [e.g., using conventional computed tomography (CT)], doxorubicin loading efficacy, morphology using light and fluorescence microscopy, size distribution using laser diffraction/light scattering, time-in-suspension, rheological properties using rheometer analysis, and microsphere stability observed over a period of 5 days after doxorubicin loading. RESULTS V-100 showed good inherent radiopacity without adverse imaging artifacts. Under conventional CT, the quantitative radiopacity was as follows: 480.4 ± 2.9HU for V-100, 2432.7 ± 3.2HU for DC-Bead-LUMI™-70-150, 118.1 ± 3.0HU for Embozene-Tandem™-100, and 19.8 ± 1.5HU for DC-Bead™-M1. All of the types of microspheres showed a similar loading efficiency (> 98%) after 24 h; however, there were slower doxorubicin loading velocities for the radiopaque microspheres. The doxorubicin-loaded V-100 and Embozene-Tandem™-100 showed typical narrow-sized distributions. In aqua/iodixanol-320 suspension, doxorubicin-loaded V-100 showed the best suspension features and ideal deformability and elasticity characteristics. Similar to other microspheres, doxorubicin-loaded V-100 was very stable and storable for at least 5 days. CONCLUSION V-100 is a promising novel type of radiopaque doxorubicin-loaded microsphere. Compared with the controls, V-100 shows good inherent radiopacity without adverse imaging artifacts and with comparable doxorubicin loading efficacy. Further advantages of V-100 include narrow-sized distribution and excellent suspension, rheology, and stability features.
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Affiliation(s)
- Feng Pan
- Clinic of Diagnostic and Interventional Radiology, Heidelberg University Hospital, INF 110, 69120, Heidelberg, Germany.,Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Daniel Schneider
- Clinic of Diagnostic and Interventional Radiology, Heidelberg University Hospital, INF 110, 69120, Heidelberg, Germany
| | - Eduard Ryschich
- Department of General, Visceral and Transplantation Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Baifeng Qian
- Department of General, Visceral and Transplantation Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Dominik F Vollherbst
- Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Markus A Möhlenbruch
- Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Manfred Jugold
- Core Facility Small Animal Imaging, German Cancer Research Center Heidelberg, Heidelberg, Germany
| | - Viktoria Eichwald
- Core Facility Small Animal Imaging, German Cancer Research Center Heidelberg, Heidelberg, Germany
| | - Philipp Stenzel
- Institute of Pathology, Mainz University Hospital, Mainz, Germany
| | - Philippe L Pereira
- Clinic for Radiology, Minimally-Invasive Therapies and Nuclearmedicine, SLK-Kliniken GmbH, Heilbronn, Germany
| | - Götz M Richter
- Clinic of Diagnostic and Interventional Radiology, Klinikum Stuttgart, Kriegsbergstrasse 60, 70174, Stuttgart, Germany
| | - Hans U Kauczor
- Clinic of Diagnostic and Interventional Radiology, Heidelberg University Hospital, INF 110, 69120, Heidelberg, Germany
| | - Christof M Sommer
- Clinic of Diagnostic and Interventional Radiology, Heidelberg University Hospital, INF 110, 69120, Heidelberg, Germany. .,Clinic of Diagnostic and Interventional Radiology, Klinikum Stuttgart, Kriegsbergstrasse 60, 70174, Stuttgart, Germany.
| | - Thuy D Do
- Clinic of Diagnostic and Interventional Radiology, Heidelberg University Hospital, INF 110, 69120, Heidelberg, Germany
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