1
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Ruiz-Matus S, Goldstein P. On the universality of viscosity in supersaturated binary aqueous sugar solutions: Cryopreservation by vitrification. Cryobiology 2024; 115:104886. [PMID: 38555011 DOI: 10.1016/j.cryobiol.2024.104886] [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: 01/20/2024] [Revised: 03/07/2024] [Accepted: 03/14/2024] [Indexed: 04/02/2024]
Abstract
Nowadays, the physical nature of supersaturated binary aqueous sugar solutions in the vicinity of the glass transition represents a very important issue due to their biological applications in cryopreservation of cells and tissues, food science and stabilization and storage of nano genetic drugs. We present the construction of the Supplemented Phase Diagram and the non-equilibrium nature of the undersaturated-supersaturated kinetic transition. The description of its thermodynamic nature is achieved through the study of behavior of their viscosity as temperature is lowered and concentration increased. In this work, we find a universal character for the viscosities of several sugar water solutions.
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Affiliation(s)
- Soledad Ruiz-Matus
- Department of Physics, Faculty of Science, National Autonomous University of México, 04510, Coyoacán, Ciudad de México, Mexico.
| | - Patricia Goldstein
- Department of Physics, Faculty of Science, National Autonomous University of México, 04510, Coyoacán, Ciudad de México, Mexico.
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2
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Olgenblum GI, Hutcheson BO, Pielak GJ, Harries D. Protecting Proteins from Desiccation Stress Using Molecular Glasses and Gels. Chem Rev 2024; 124:5668-5694. [PMID: 38635951 PMCID: PMC11082905 DOI: 10.1021/acs.chemrev.3c00752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 02/18/2024] [Accepted: 02/22/2024] [Indexed: 04/20/2024]
Abstract
Faced with desiccation stress, many organisms deploy strategies to maintain the integrity of their cellular components. Amorphous glassy media composed of small molecular solutes or protein gels present general strategies for protecting against drying. We review these strategies and the proposed molecular mechanisms to explain protein protection in a vitreous matrix under conditions of low hydration. We also describe efforts to exploit similar strategies in technological applications for protecting proteins in dry or highly desiccated states. Finally, we outline open questions and possibilities for future explorations.
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Affiliation(s)
- Gil I. Olgenblum
- Institute
of Chemistry, Fritz Haber Research Center, and The Harvey M. Krueger
Family Center for Nanoscience & Nanotechnology, The Hebrew University, Jerusalem 9190401, Israel
| | - Brent O. Hutcheson
- Department
of Chemistry, University of North Carolina
at Chapel Hill (UNC-CH), Chapel
Hill, North Carolina 27599, United States
| | - Gary J. Pielak
- Department
of Chemistry, University of North Carolina
at Chapel Hill (UNC-CH), Chapel
Hill, North Carolina 27599, United States
- Department
of Chemistry, Department of Biochemistry & Biophysics, Integrated
Program for Biological & Genome Sciences, Lineberger Comprehensive
Cancer Center, University of North Carolina
at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Daniel Harries
- Institute
of Chemistry, Fritz Haber Research Center, and The Harvey M. Krueger
Family Center for Nanoscience & Nanotechnology, The Hebrew University, Jerusalem 9190401, Israel
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3
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Andreana I, Bincoletto V, Manzoli M, Rodà F, Giarraputo V, Milla P, Arpicco S, Stella B. Freeze Drying of Polymer Nanoparticles and Liposomes Exploiting Different Saccharide-Based Approaches. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16031212. [PMID: 36770218 PMCID: PMC9921637 DOI: 10.3390/ma16031212] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 01/17/2023] [Accepted: 01/27/2023] [Indexed: 05/31/2023]
Abstract
Biodegradable nanocarriers represent promising tools for controlled drug delivery. However, one major drawback related to their use is the long-term stability, which is largely influenced by the presence of water in the formulations, so to solve this problem, freeze-drying with cryoprotectants has been proposed. In the present study, the influence of the freeze-drying procedure on the storage stability of poly(lactide-co-glycolide) (PLGA) nanoparticles and liposomes was evaluated. In particular, conventional cryoprotectants were added to PLGA nanoparticle and liposome formulations in various conditions. Additionally, hyaluronic acid (HA), known for its ability to target the CD44 receptor, was assessed as a cryoprotective excipient: it was added to the nanocarriers as either a free molecule or conjugated to a phospholipid to increase the interaction with the polymer or lipid matrix while exposing HA on the nanocarrier surface. The formulations were resuspended and characterized for size, polydispersity index, zeta potential and morphology. It was demonstrated that only the highest percentages of cryoprotectants allowed the resuspension of stable nanocarriers. Moreover, unlike free HA, HA-phospholipid conjugates were able to maintain the particle mean size after the reconstitution of lyophilized nanoparticles and liposomes. This study paves the way for the use of HA-phospholipids to achieve, at the same time, nanocarrier cryoprotection and active targeting.
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4
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Yang F, Jiang W, Chen X, Chen X, Wu J, Huang J, Cai X, Wang S. Identification of Novel Antifreeze Peptides from Takifugu obscurus Skin and Molecular Mechanism in Inhibiting Ice Crystal Growth. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:14148-14156. [PMID: 36314886 DOI: 10.1021/acs.jafc.2c04393] [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] [Indexed: 06/16/2023]
Abstract
Foodborne hydrolyzed antifreeze peptides have been widely used in the food industry and the biomedical field. However, the components of hydrolyzed peptides are complex and the molecular mechanism remains unclear. This study focused on identification and mechanism analysis of novel antifreeze peptides from Takifugu obscurus skin by traditional methods and computer-assisted techniques. Results showed that three peptides (EGPRAGGAPG, GDAGPSGPAGPTG, and GEAGPAGPAG) possessed cryoprotection via reducing the freezing point and inhibiting ice crystal growth. Molecular docking confirmed that the cryoprotective property was related to peptide structure, especially α-helix, and hydrogen bond sites. Moreover, the antifreeze peptides were double-faces, which controlled ice crystals while affecting the arrangement of surrounding water molecules, thus exhibiting a strong antifreeze activity. This investigation deepens the comprehension of the mechanism of antifreeze peptides at molecular scale, and the novel efficient antifreeze peptides can be developed in antifreeze materials design and applied in food industry.
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Affiliation(s)
- Fujia Yang
- College of Chemical Engineering, Fuzhou University, Fuzhou350108, P.R. China
- College of Biological Science and Engineering, Fuzhou University, Fuzhou350108, P.R. China
| | - Wenting Jiang
- College of Biological Science and Engineering, Fuzhou University, Fuzhou350108, P.R. China
| | - Xu Chen
- College of Biological Science and Engineering, Fuzhou University, Fuzhou350108, P.R. China
| | - Xuan Chen
- College of Chemical Engineering, Fuzhou University, Fuzhou350108, P.R. China
- College of Biological Science and Engineering, Fuzhou University, Fuzhou350108, P.R. China
| | - Jinhong Wu
- Department of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai200240, P.R. China
| | - Jianlian Huang
- Key Laboratory of Refrigeration and Conditioning Aquatic Products Processing of Ministry of Agriculture and Rural Affairs, Xiamen361022, P.R. China
- Fujian Anjoy Foods Co. Ltd., Xiamen361022, P.R. China
| | - Xixi Cai
- College of Biological Science and Engineering, Fuzhou University, Fuzhou350108, P.R. China
| | - Shaoyun Wang
- College of Biological Science and Engineering, Fuzhou University, Fuzhou350108, P.R. China
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5
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Guarro M, Suñer F, Lecina M, Borrós S, Fornaguera C. Efficient extracellular vesicles freeze-dry method for direct formulations preparation and use. Colloids Surf B Biointerfaces 2022; 218:112745. [PMID: 35930983 DOI: 10.1016/j.colsurfb.2022.112745] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 07/21/2022] [Accepted: 07/31/2022] [Indexed: 11/18/2022]
Abstract
Despite the great knowledge achieved in the field of extracellular vesicles (EVs), the short lifetime of EVs liquid formulation still hampers the transfer of EVs technology to clinical applications. In this context, freeze-dried EVs would be advantageous thanks to the enhanced stability of solid formulations. Although some previous attempts have already been reported, the efficiency of EVs lyophilization methodologies used remains insufficient, and the characterization of the resulting EVs is still incomplete. The current work aims to describe an alternative and easy-to-be-applied methodology for EVs lyophilization. The use of sucrose as lyoprotectant at 8.5%wt improved the cryopreservation efficiency. After the subsequent cycles of freeze-drying, properties such as size, morphology, purity, EVs specific markers, biocompatibility and the maintenance of their functionality were confirmed in freeze-dried EVs samples. To sum up, we have designed a methodology for the lyophilization of extracellular vesicles that enables the preservation of the physicochemical properties and functionality of EVs.
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Affiliation(s)
- Mònica Guarro
- Grup d'Enginyeria de Materials (Gemat), Institut Químic de Sarrià (IQS), Universitat Ramon Llull (URL), Via Augusta 390, 08017 Barcelona, Spain
| | - Francisca Suñer
- Grup d'Enginyeria de Materials (Gemat), Institut Químic de Sarrià (IQS), Universitat Ramon Llull (URL), Via Augusta 390, 08017 Barcelona, Spain
| | - Martí Lecina
- Grup d'Enginyeria de Materials (Gemat), Institut Químic de Sarrià (IQS), Universitat Ramon Llull (URL), Via Augusta 390, 08017 Barcelona, Spain
| | - Salvador Borrós
- Grup d'Enginyeria de Materials (Gemat), Institut Químic de Sarrià (IQS), Universitat Ramon Llull (URL), Via Augusta 390, 08017 Barcelona, Spain
| | - Cristina Fornaguera
- Grup d'Enginyeria de Materials (Gemat), Institut Químic de Sarrià (IQS), Universitat Ramon Llull (URL), Via Augusta 390, 08017 Barcelona, Spain.
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6
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Skotnicki M, Czerniecka-Kubicka A, Neilsen G, Woodfield BF, Pyda M. Application of advanced thermal analysis for characterization of crystalline and amorphous phases of carvedilol. J Pharm Biomed Anal 2022; 217:114822. [PMID: 35550491 DOI: 10.1016/j.jpba.2022.114822] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 05/02/2022] [Accepted: 05/04/2022] [Indexed: 11/27/2022]
Abstract
The thermal behaviour of crystalline and amorphous carvedilol (CAR) phases was studied by advanced thermal analysis using Quantum Design Physical Property Measurement System and Differential Scanning Calorimetry. Theoretical functions describing crystalline carvedilol heat capacity at low temperatures and the Debye-Einstein function for high temperatures were obtained. Based on the experimental heat capacity values, solid and liquid baselines were established, and the state functions (H, S, G) for solid and liquid states were calculated. A comprehensive characterization of melting and glass transition processes was obtained. CAR is easily amorphizable by cooling the liquid. The residual entropy, which quantifies the extent of frozen-in disorder in the amorphous solid, for glassy CAR was estimated as 51 J·mol-1·K-1. The Kauzmann temperature (TK) was estimated based on enthalpy and entropy. Molecular motions in the amorphous phase were also studied. The activation energy for structural relaxation (Ea = 539 kJ·mol-1) and fragility parameter (m = 91) were obtained from the non-isothermal physical ageing. The isothermal physical ageing kinetics of amorphous CAR was studied by applying Kohlrausch-Williams-Watts (KWW) model. The mean molecular relaxation time constant (τKWW = 117 min) and relaxation constant (βKWW = 0.33) were obtained. CAR was classified as a fragile glass-former. Furthermore, τKWW constant for samples aged at 303.15 K is very low, thus, the physical ageing will occur during the short- and long-term storage of amorphous CAR, potentially changing its physicochemical properties during the ageing process. However, the results of molecular mobility studies (high molecular motions) show that the relationship between molecular motions in a glassy solid and its tendency to crystallization does not seem to follow an expected pattern, i.e., no crystallization occurred by thermal treatment of glassy, supercooled liquid and liquid phases of CAR as one would expect. Modern calorimetry and quantitative thermal analysis provided the fundamental kinetic and thermodynamic information about the crystalline and amorphous states of CAR.
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Affiliation(s)
- Marcin Skotnicki
- Chair and Department of Pharmaceutical Technology, Poznan University of Medical Sciences, 60-780 Poznan, Poland.
| | - Anna Czerniecka-Kubicka
- Department of Experimental and Clinical Pharmacology, Medical College of Rzeszow University, The University of Rzeszow, 35-310 Rzeszow, Poland; Interdyscyplinarny Center Preclinical and Clinical Research, The University of Rzeszow, 36-100 Werynia, Poland
| | - Grace Neilsen
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84602, USA
| | - Brian F Woodfield
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84602, USA
| | - Marek Pyda
- Department of Chemistry, Rzeszow University of Technology, 35-959 Rzeszow, Poland
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7
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Polat S. Color quality, ascorbic acid, total carotenoid, and volatile compounds of dried orange slices as influenced by packaging methods and storage conditions. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.15898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Suleyman Polat
- Department of Food Engineering Faculty of Agriculture Cukurova University Adana Turkey
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8
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Yazar G, Kokini JL, Smith B. Effect of endogenous wheat gluten lipids on the non-linear rheological properties of the gluten network. Food Chem 2021; 367:130729. [PMID: 34365245 DOI: 10.1016/j.foodchem.2021.130729] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 07/18/2021] [Accepted: 07/22/2021] [Indexed: 11/04/2022]
Abstract
The impact of endogenous wheat lipids on thermal characteristics, mixing behavior, non-linear rheological properties of gluten was studied to explore the contribution of wheat lipids to viscoelastic behavior of gluten under large processing deformations. Thermal analysis indicated higher denaturation temperature for vital wheat gluten (VWG) (69.2 ± 1.2 °C) due to reduced water affinity compared to lipid-removed vital wheat gluten (LRVWG) (63.6 ± 0.2 °C). Development time was reached 4 minutes earlier and consistency increased constantly for LRVWG as Farinograph mixing proceeded, suggesting higher affinity to water for gluten in the absence of lipids. Large Amplitude Oscillatory Shear (LAOS) tests showed a mixture of type III and IV non-linear behavior for gluten. Higher tendency to type III behavior for VWG indicated more extensibility in the presence of lipids. Higher elasticity and strain stiffening obtained for LRVWG under LAOS deformations accentuated the stabilizing effect of lipids on the viscoelastic nature of gluten network during processing.
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Affiliation(s)
- Gamze Yazar
- Purdue University Food Science Department, 745 Agriculture Mall Dr., West Lafayette, IN 47907, USA; University of Idaho, Department of Animal, Veterinary and Food Sciences, 875 Perimeter Dr. MS 2330, Moscow, ID 83844, USA.
| | - Jozef L Kokini
- Purdue University Food Science Department, 745 Agriculture Mall Dr., West Lafayette, IN 47907, USA
| | - Brennan Smith
- University of Idaho, Department of Animal, Veterinary and Food Sciences, 875 Perimeter Dr. MS 2330, Moscow, ID 83844, USA; USDA-ARS-SRRC Food Processing and Sensory Quality, 1100 Robert E Lee Blvd, New Orleans, LA 70124, USA
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9
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Rockinger U, Funk M, Winter G. Current Approaches of Preservation of Cells During (freeze-) Drying. J Pharm Sci 2021; 110:2873-2893. [PMID: 33933434 DOI: 10.1016/j.xphs.2021.04.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 03/13/2021] [Accepted: 04/20/2021] [Indexed: 11/20/2022]
Abstract
The widespread application of therapeutic cells requires a successful stabilization of cells for the duration of transport and storage. Cryopreservation is currently considered the gold standard for the storage of active cells; however, (freeze-) drying cells could enable higher shelf life stability at ambient temperatures and facilitate easier transport and storage. During (freeze-) drying, freezing, (primary and secondary) drying and also the reconstitution step pose the risk of potential cell damage. To prevent these damaging processes, a wide range of protecting excipients has emerged, which can be classified, according to their chemical affiliation, into sugars, macromolecules, polyols, antioxidants and chelating agents. As many excipients cannot easily permeate the cell membrane, researchers have established various techniques to introduce especially trehalose intracellularly, prior to drying. This review aims to summarize the main damaging mechanisms during (freeze-) drying and to introduce the most common excipients with further details on their stabilizing properties and process approaches for the intracellular loading of excipients. Additionally, we would like to briefly explain recently discovered advantages of drying microorganisms, sperm, platelets, red blood cells, and eukaryotic cells, paying particular attention to the drying technique and residual moisture content.
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Affiliation(s)
- Ute Rockinger
- Ludwig-Maximilians-Universität München, Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics, Munich, Germany.
| | - Martin Funk
- QRSKIN GmbH, Friedrich-Bergius-Ring 15, Würzburg, Germany
| | - Gerhard Winter
- Ludwig-Maximilians-Universität München, Department of Pharmacy, Pharmaceutical Technology and Biopharmaceutics, Munich, Germany
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10
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Starch Retrogradation in Rice Cake: Influences of Sucrose Stearate and Glycerol. Foods 2020; 9:foods9121737. [PMID: 33255817 PMCID: PMC7759983 DOI: 10.3390/foods9121737] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/23/2020] [Accepted: 11/24/2020] [Indexed: 11/16/2022] Open
Abstract
Retrogradation properties and kinetics of rice cakes with the addition of glycerol (GLY) and sucrose fatty acid ester (SE) were investigated. In hardness, both rice cakes with glycerol (RGLY) and rice cakes with sucrose fatty acid ester (RSE) showed lower initial hardening compared with the control for up to 5 days. X-ray diffraction (XRD) pattern of RSE showed a B+V-type pattern, and the relative crystallinity showed that GLY and SE lowered the initial and final crystallization of rice cake. Both GLY and SE affected the retrogradation enthalpy, glass transition temperature, and ice melting enthalpy in differential scanning calorimeter (DSC). However, 1H NMR relaxation time (T2) of rice cake decreased regardless of additives. From these results, the addition of glycerol and sucrose stearate inhibits the retrogradation process of rice cakes, which will solve industrial problems. Applying the Avrami equation for retrogradation kinetics of rice cake was suitable in XRD and DSC with high coefficient of determination (0.9 < R2). Meanwhile, the other retrogradation index improved the R2 when the exponential rise to maximum equation was used. This suggests that there is an alternative of Avrami equation to predict the retrogradation.
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11
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Iftikhar F, Hussain SZ, Naseer B, Nidoni UK, Naik HR. Investigations on the process and product parameters of
radio frequency
‐induced accelerated aged paddy. J FOOD PROCESS ENG 2020. [DOI: 10.1111/jfpe.13521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Farheena Iftikhar
- Division of Food Science and Technology Sher‐e‐Kashmir University of Agricultural Sciences and Technology (SKUAST) Kashmir Shalimar India
| | - Syed Zameer Hussain
- Division of Food Science and Technology Sher‐e‐Kashmir University of Agricultural Sciences and Technology (SKUAST) Kashmir Shalimar India
| | - Bazila Naseer
- Division of Food Science and Technology Sher‐e‐Kashmir University of Agricultural Sciences and Technology (SKUAST) Kashmir Shalimar India
| | - Uday Kumar Nidoni
- Department of Processing and Food Engineering University of Agricultural Sciences Raichur India
| | - Haroon R. Naik
- Division of Food Science and Technology Sher‐e‐Kashmir University of Agricultural Sciences and Technology (SKUAST) Kashmir Shalimar India
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12
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Sinha A, Bhargav A. Effect of state transition, drying kinetics and moisture content on Young's modulus variation during thermal drying of hygroscopic food materials. J FOOD ENG 2020. [DOI: 10.1016/j.jfoodeng.2020.109957] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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13
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14
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Guimarães D, Noro J, Silva C, Cavaco-Paulo A, Nogueira E. Protective Effect of Saccharides on Freeze-Dried Liposomes Encapsulating Drugs. Front Bioeng Biotechnol 2019; 7:424. [PMID: 31921827 PMCID: PMC6927910 DOI: 10.3389/fbioe.2019.00424] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 12/02/2019] [Indexed: 11/13/2022] Open
Abstract
The production of freeze-dried liposomes encapsulating drugs is considered a key challenge since the drugs are prone to leakage. The aim of this work was to study the effect of different saccharides on preserving the stability and drug retention capacity of a previously developed liposomal formulation, when subjected to a freeze-drying process. The protective role of trehalose, lactose, glucose, mannitol and sucrose, known for their cryo/lyoprotective effect, was tested by addition of different concentrations to liposomes. Sucrose, in a concentration dependent manner (8:1 sugar:lipids mass ratio) proved to be a suitable cryo/lyoprotectant of these liposomes. Effectively, this saccharide prevents the fusion or/and aggregation of the liposomal formulation, protecting the integrity of the freeze-dried empty liposomes. The liposomal formulation containing sucrose was studied in terms of morphology, concentration, and anticancer drugs retention ability. The study involved two drugs encapsulated in the aqueous core, methotrexate (MTX) and doxorubicin (DOX), and one drug located in the lipid bilayer, tamoxifen (TAM). After the freeze-drying process, liposomes with sucrose encapsulating drugs revealed high physical stability, maintaining their narrow and monodisperse character, however high leakage of the drugs encapsulated in the aqueous core was observed. Otherwise, no significant drug leakage was detected on liposomes containing the TAM, which maintained its biological activity after the freeze-drying process. These findings reveal that sucrose is a good candidate for the cryo/lyoprotection of liposomes with drugs located in the lipid bilayer.
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Affiliation(s)
- Diana Guimarães
- Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - Jennifer Noro
- Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - Carla Silva
- Centre of Biological Engineering, University of Minho, Braga, Portugal
| | | | - Eugénia Nogueira
- Centre of Biological Engineering, University of Minho, Braga, Portugal
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15
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Abstract
Increasing paddy yield in rice does not directly translate to enhancing food security because significant decrease in grain yield can happen during postharvest processing of the rice paddy. In parallel with enhancing paddy yield, improving the milling quality of rice is essential in ensuring food security by mitigating the impact of significant losses during the postharvest processing of rice grains. From an industrial standpoint, maximizing the milling recovery of whole grain polished rice is crucial in fetching higher revenues to rice farmers. Significant advances in rice postharvest processing technology have been achieved which are geared toward reducing the incidence of fissures and chalkiness to increase head rice yield (HRY) in rice. The genetic bases of kernel development and grain dimension are also characterized. In addition to these advancements, an integrated phenotyping suite to simultaneously characterize phenotypes related to milling quality will help in screening for breeding lines with high HRY. Toward this goal, modern imaging tools and computer algorithms are currently being developed for high-throughput characterization of rice milling quality. With the availability of more sophisticated, affordable, automated, and nondestructive phenotyping methods of milling quality, it is envisioned that significant improvement in HRY will be made possible to ensure rice food security in the future.
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16
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Meng-Lund H, Holm TP, Poso A, Jorgensen L, Rantanen J, Grohganz H. Exploring the chemical space for freeze-drying excipients. Int J Pharm 2019; 566:254-263. [PMID: 31145963 DOI: 10.1016/j.ijpharm.2019.05.065] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 05/22/2019] [Accepted: 05/25/2019] [Indexed: 10/26/2022]
Abstract
Commonly, a limited number of generally accepted bulking agents and lyoprotectants are used for freeze-drying; predominantly mannitol, glycine, sucrose and trehalose. The purpose of this study was to combine a theoretical approach using molecular descriptors with a large scale experimental screening to evaluate the suitability of a broad range of excipients for freeze-drying. A large selection of sugars, polyols and amino acids was characterized by modulated differential scanning calorimetry (mDSC) and X-ray powder diffraction (XRPD) after well-plate based freeze-drying. The calculated molecular descriptors were investigated with both hierarchical cluster analysis and principal component analysis. A clear clustering of the excipients according to the size-related and weight-related descriptors was observed; however other relevant descriptors could also be identified. From a practical perspective, a trend was observed with regard to a higher likelihood for amorphisation and a higher glass transition temperature of the maximally freeze-concentrated solution with increasing molecular size. A translation of the molecular descriptors on pharmaceutical performance was more successful for lyoprotectants than for bulking agents. Additionally, in the course of the experimental screening, several new potential bulking agents and lyoprotectants were identified.
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Affiliation(s)
- Helena Meng-Lund
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Tobias Palle Holm
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Antti Poso
- University of Eastern Finland, School of Pharmacy, Yliopistonranta 1, P.O. Box 1627, FI-70211 Kuopio, Finland; University Hospital Tübingen, Department of Internal Medicine VIII, Otfried-Müller-Strasse 14, 72076 Tübingen, Germany
| | - Lene Jorgensen
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Jukka Rantanen
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Holger Grohganz
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark.
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17
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Oh SM, Kim HY, Bae JE, Ye SJ, Kim BY, Choi HD, Choi HW, Baik MY. Physicochemical and retrogradation properties of modified chestnut starches. Food Sci Biotechnol 2019; 28:1723-1731. [PMID: 31807345 DOI: 10.1007/s10068-019-00622-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 04/05/2019] [Accepted: 04/25/2019] [Indexed: 01/05/2023] Open
Abstract
Physicochemical properties of acetylated (AC), cross-linked (CL), and hydroxypropylated (HP) chestnut starches were investigated. Modified chestnut starch showed low RS and amylose contents. AC revealed the highest solubility and HP showed the highest swelling power at 60 °C. CL showed the lowest solubility and swelling power at both 60 and 90 °C. AC and HP showed a lower pasting temperature and higher peak viscosity than native chestnut starch (NC). Modified chestnut starch formed gels at higher solid content than NC. CL had the lowest freeze-thaw stability, and AC and HP showed the strongest tolerance to freeze-thaw cycles. Amylopectin melting enthalpy of NC dramatically increased over the first 2 days and continued increasing gradually until day 24. On the other hand, all the modified chestnut starches showed a slight increase in amylopectin melting enthalpy, indicating retarded retrogradation. CL showed the lowest degree of retrogradation, followed by HP, AC, and NC.
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Affiliation(s)
- Seon-Min Oh
- 1Department of Food Science and Biotechnology, Institute of Life Science and Resources, Kyung Hee University, Yongin, 17104 South Korea
| | - Hui-Yun Kim
- 1Department of Food Science and Biotechnology, Institute of Life Science and Resources, Kyung Hee University, Yongin, 17104 South Korea
| | - Ji-Eun Bae
- 1Department of Food Science and Biotechnology, Institute of Life Science and Resources, Kyung Hee University, Yongin, 17104 South Korea
| | - Sang-Jin Ye
- 1Department of Food Science and Biotechnology, Institute of Life Science and Resources, Kyung Hee University, Yongin, 17104 South Korea
| | - Byung-Yong Kim
- 1Department of Food Science and Biotechnology, Institute of Life Science and Resources, Kyung Hee University, Yongin, 17104 South Korea
| | - Hee Don Choi
- 2Korea Food Research Institute, Wanju-gun, Korea
| | | | - Moo-Yeol Baik
- 1Department of Food Science and Biotechnology, Institute of Life Science and Resources, Kyung Hee University, Yongin, 17104 South Korea
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18
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About the endothermal transitions of galactomannans: A multi-analytical DSC, LF-1H NMR and DMA study. Carbohydr Polym 2019; 211:31-38. [DOI: 10.1016/j.carbpol.2019.01.092] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 01/25/2019] [Accepted: 01/25/2019] [Indexed: 11/22/2022]
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19
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Cholakova D, Denkov N, Tcholakova S, Valkova Z, Smoukov SK. Multilayer Formation in Self-Shaping Emulsion Droplets. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:5484-5495. [PMID: 30924339 DOI: 10.1021/acs.langmuir.8b02771] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In several recent studies, we showed that micrometer-sized oil-in-water emulsion droplets from alkanes, alkenes, alcohols, triglycerides, or mixtures of these components can spontaneously "self-shape" upon cooling into various regular shapes, such as regular polyhedrons, platelets, rods, and fibers ( Denkov , N. , Nature 2015 , 528 , 392 ; Cholakova , D. , Adv. Colloid Interface Sci. 2016 , 235 , 90 ). These drop-shape transformations were explained by assuming that intermediate plastic rotator phase, composed of ordered multilayers of oily molecules, is formed beneath the drop surface around the oil-freezing temperature. An alternative explanation was proposed ( Guttman , S. , Proc. Natl. Acad. Sci. USA 2016 113 , 493 ; Guttman , S. , Langmuir 2017 , 33 , 1305 ), which is based on the assumption that the oil-water interfacial tension decreases to very low values upon emulsion cooling. Here, we present new results, obtained by differential scanning calorimetry (DSC), which quantify the enthalpy effects accompanying the drop-shape transformations. Using optical microscopy, we related the peaks in the DSC thermograms to the specific changes in the drop shape. Furthermore, from the enthalpies measured by DSC, we determined the fraction of the intermediate phase involved in the processes of drop deformation. The obtained results support the explanation that the drop-shape transformations are intimately related to the formation of ordered multilayers of alkane molecules with thickness varying between several and dozens of layers of alkane molecules, depending on the specific system. The new results provide the basis for a rational approach to the mechanistic explanation and to the fine control of this fascinating and industrially relevant phenomenon.
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Affiliation(s)
- Diana Cholakova
- Department of Chemical and Pharmaceutical Engineering, Faculty of Chemistry and Pharmacy , Sofia University , 1 James Bourchier Avenue , 1164 Sofia , Bulgaria
| | - Nikolai Denkov
- Department of Chemical and Pharmaceutical Engineering, Faculty of Chemistry and Pharmacy , Sofia University , 1 James Bourchier Avenue , 1164 Sofia , Bulgaria
| | - Slavka Tcholakova
- Department of Chemical and Pharmaceutical Engineering, Faculty of Chemistry and Pharmacy , Sofia University , 1 James Bourchier Avenue , 1164 Sofia , Bulgaria
| | - Zhulieta Valkova
- Department of Chemical and Pharmaceutical Engineering, Faculty of Chemistry and Pharmacy , Sofia University , 1 James Bourchier Avenue , 1164 Sofia , Bulgaria
| | - Stoyan K Smoukov
- Active and Intelligent Materials Lab, School of Engineering and Materials Science , Queen Mary University of London , Mile End Road , London E14NS , UK
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Combarro Palacios I, Olsson C, Kamma-Lorger CS, Swenson J, Cerveny S. Motions of water and solutes-Slaving versus plasticization phenomena. J Chem Phys 2019; 150:124902. [PMID: 30927900 DOI: 10.1063/1.5030064] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
It is well-accepted that hydration water is crucial for the structure, dynamics, and function of proteins. However, the exact role of water for the motions and functions of proteins is still debated. Experiments have shown that protein and water dynamics are strongly coupled but with water motions occurring on a considerably faster time scale (the so-called slaving behavior). On the other hand, water also reduces the conformational entropy of proteins and thereby acts as a plasticizer of them. In this work, we analyze the dynamics (using broadband dielectric spectroscopy) of some specific non-biological water solutions in a broad concentration range to elucidate the role of water in the dynamics of the solutes. Our results demonstrate that at low water concentrations (less than 5 wt. %), the plasticization phenomenon prevails for all the materials analyzed. However, at higher water concentrations, two different scenarios can be observed: the slaving phenomenon or plasticization, depending on the solute analyzed. These results generalize the slaving phenomenon to some, but not all, non-biological solutions and allow us to analyze the key factors for observing the slaving behavior in protein solutions as well as to reshaping the slaving concept.
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Affiliation(s)
- Izaskun Combarro Palacios
- Centro de Física de Materiales (CSIC-UPV/EHU)-Material Physics Centre (MPC), Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
| | - Christoffer Olsson
- Department of Physics, Chalmers University of Technology, SE-412 96 Göteborg, Sweden
| | | | - Jan Swenson
- Department of Physics, Chalmers University of Technology, SE-412 96 Göteborg, Sweden
| | - Silvina Cerveny
- Centro de Física de Materiales (CSIC-UPV/EHU)-Material Physics Centre (MPC), Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
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21
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Yan B, Shen H, Fan D, Tao Y, Wu Y, Wang M, Zhao J, Zhang H. Microwave treatment regulates the free volume of rice starch. Sci Rep 2019; 9:3876. [PMID: 30846823 PMCID: PMC6405908 DOI: 10.1038/s41598-019-40598-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 02/19/2019] [Indexed: 11/21/2022] Open
Abstract
The aim of this work was to investigate the role of microwave parameters and moisture content on the free volume (FV) changes of rice starch by positron annihilation lifetime spectroscopy analysis (PALS) and to explore the potential relationship between the changes of FV and physicochemical properties of rice starch. Microwave heating and water molecules lead to the increasing of FV of starch. However, this result is largely influenced by the plasticization of water molecule. The anti-plasticization caused by water evaporation resulting in a decrease in the size and concentration of FV during microwave heating. Significant decrease (p < 0.05) in the thickness of amorphous region of microwave-heated rice starch was found by small angle X-ray scattering (SAXS), and the glass transition temperature (Tg) and gelatinization temperature significantly increase (p < 0.05) after microwave heating. According to correlation analysis, the power intensity and heating time were correlated negatively with the lifetime of o-Ps. In addition, the changes of amorphous region and Tg of rice starch were strongly related to FV changes. These results provided a theoretical basis for further research on the directional regulation of FV and improvement the quality of starch-based food by using microwave treatment.
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Affiliation(s)
- Bowen Yan
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, 214122, China.,School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
| | - Huijie Shen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, 214122, China.,School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
| | - Daming Fan
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China. .,School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong SAR, Hong Kong, China. .,National Engineering Research Center for Functional Food, 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, Wuxi, 214122, China.
| | - Yuan Tao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, 214122, China.,School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
| | - Yejun Wu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, 214122, China.,School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
| | - Mingfu Wang
- School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong SAR, Hong Kong, China.
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China.,National Engineering Research Center for Functional Food, 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, Wuxi, 214122, China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China.,National Engineering Research Center for Functional Food, 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, Wuxi, 214122, China
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22
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Ahmed J, Thomas L, Khashawi R. Dielectric, thermal, and rheological properties of inulin/water binary solutions in the selected concentration. J FOOD PROCESS ENG 2018. [DOI: 10.1111/jfpe.12968] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jasim Ahmed
- Food and Nutrition Program, Environment & Life Sciences Research CenterKuwait Institute for Scientific Research Safat Kuwait
| | - Linu Thomas
- Food and Nutrition Program, Environment & Life Sciences Research CenterKuwait Institute for Scientific Research Safat Kuwait
| | - Rawan Khashawi
- Food and Nutrition Program, Environment & Life Sciences Research CenterKuwait Institute for Scientific Research Safat Kuwait
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23
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Thorat AA, Forny L, Meunier V, Taylor LS, Mauer LJ. Effects of Mono-, Di-, and Tri-Saccharides on the Stability and Crystallization of Amorphous Sucrose. J Food Sci 2018; 83:2827-2839. [PMID: 30320406 DOI: 10.1111/1750-3841.14357] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 08/24/2018] [Accepted: 08/27/2018] [Indexed: 11/29/2022]
Abstract
Amorphous sucrose is a component of many food products but is prone to crystallize over time, thereby altering product quality and limiting shelf-life. A systematic investigation was conducted to determine the effects of two monosaccharides (glucose and fructose), five disaccharides (lactose, maltose, trehalose, isomaltulose, and cellobiose), and two trisaccharides (maltotriose and raffinose) on the stability of amorphous sucrose in lyophilized two-component sucrose-saccharide blends exposed to different relative humidity (RH) and temperature environmental conditions relevant for food product storage. Analyses included X-ray diffraction, differential scanning calorimetry, microscopy, and moisture content determination, as well as crystal structure overlays. All lyophiles were initially amorphous, but during storage the presence of an additional saccharide tended to delay sucrose crystallization. All samples remained amorphous when stored at 11% and 23% RH at 22 °C, but increasing the RH to 33% RH and/or increasing the temperature to 40 °C resulted in variations in crystallization onset times. Monosaccharide additives were less effective sucrose crystallization inhibitors relative to di- and tri-saccharides. Within the group of di- and tri-saccharides, effectiveness depended on the specific saccharide added, and no clear trends were observed with saccharide molecular weight and other commonly studied factors such as system glass transition temperature. Molecular level interactions, as evident in crystal structure overlays of the added saccharides and sucrose and morphological differences in crystals formed, appeared to contribute to the effectiveness of a di- or tri-saccharide in delaying sucrose crystallization. In conclusion, several di- and tri-saccharides show promise for use as additives to delay the crystallization kinetics of amorphous sucrose during storage at moderate temperatures and low RH conditions. PRACTICAL APPLICATION: Amorphous sucrose is desirable in a variety of food products, wherein crystallization can be problematic for texture and shelf-life. This study documents how different mono-, di-, and tri-saccharides influence the crystallization of sucrose. Monosaccharide additives were less effective sucrose crystallization inhibitors relative to di- and tri-saccharides. These findings increase the understanding of how different mono-, di-, and tri-saccharide structures and their solid-state properties influence the crystallization of amorphous sucrose and show that several di- and tri-saccharides have potential for use as sucrose crystallization inhibitors.
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Affiliation(s)
- Alpana A Thorat
- Dept. of Food Science, Purdue Univ., 745 Agriculture Mall Drive, West Lafayette, IN, 47907, U.S.A.,Dept. of Industrial and Physical Pharmacy, Purdue Univ., 575 Stadium Mall Drive, West Lafayette, IN, 47907, U.S.A
| | - Laurent Forny
- Nestlé Research Center, Vers-chez-les-Blanc, Route du Jorat, 1005, Lausanne, Switzerland
| | - Vincent Meunier
- Nestlé Research Center, Vers-chez-les-Blanc, Route du Jorat, 1005, Lausanne, Switzerland
| | - Lynne S Taylor
- Dept. of Industrial and Physical Pharmacy, Purdue Univ., 575 Stadium Mall Drive, West Lafayette, IN, 47907, U.S.A
| | - Lisa J Mauer
- Dept. of Food Science, Purdue Univ., 745 Agriculture Mall Drive, West Lafayette, IN, 47907, U.S.A
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24
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Wan J, Zhou G, Luo S, Liu C, Liu F, Ding Y. State Diagram for a Waxy Rice Starch-Soluble Dietary Fiber Composite System. STARCH-STARKE 2018. [DOI: 10.1002/star.201700274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jie Wan
- State Key Laboratory of Food Science and Technology; Nanchang University; Nanchang, 330047 China
| | - Guohui Zhou
- State Key Laboratory of Food Science and Technology; Nanchang University; Nanchang, 330047 China
| | - Shunjing Luo
- State Key Laboratory of Food Science and Technology; Nanchang University; Nanchang, 330047 China
| | - Chengmei Liu
- State Key Laboratory of Food Science and Technology; Nanchang University; Nanchang, 330047 China
| | - Fei Liu
- State Key Laboratory of Food Science and Technology; Nanchang University; Nanchang, 330047 China
| | - Yueping Ding
- State Key Laboratory of Food Science and Technology; Nanchang University; Nanchang, 330047 China
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25
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26
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Impact of wall material physicochemical characteristics on the stability of encapsulated phytochemicals: A review. Food Res Int 2018; 107:227-247. [DOI: 10.1016/j.foodres.2018.02.026] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 01/15/2018] [Accepted: 02/11/2018] [Indexed: 12/27/2022]
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27
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Chen P, Terenzi C, Furó I, Berglund LA, Wohlert J. Hydration-Dependent Dynamical Modes in Xyloglucan from Molecular Dynamics Simulation of 13C NMR Relaxation Times and Their Distributions. Biomacromolecules 2018; 19:2567-2579. [DOI: 10.1021/acs.biomac.8b00191] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Pan Chen
- Wallenberg Wood Science Center, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden
| | - Camilla Terenzi
- Wallenberg Wood Science Center, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden
| | - István Furó
- Wallenberg Wood Science Center, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden
| | - Lars A. Berglund
- Wallenberg Wood Science Center, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden
| | - Jakob Wohlert
- Wallenberg Wood Science Center, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden
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28
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Díaz-Calderón P, MacNaughtan B, Hill S, Mitchell J, Enrione J. Reduction of enthalpy relaxation in gelatine films by addition of polyols. Int J Biol Macromol 2018; 109:634-638. [PMID: 29258897 DOI: 10.1016/j.ijbiomac.2017.12.030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 12/01/2017] [Accepted: 12/05/2017] [Indexed: 10/18/2022]
Abstract
The aim of this study was to evaluate the effect of plasticisers with different molecular weights (glycerol and sorbitol) on the structural relaxation kinetics of bovine gelatine films stored under the glass transition temperature (Tg). Plasticisers were tested at weight fractions of 0.0, 0.06 and 0.10. Films conditioned in environments under ∼44% relative humidity gave moisture contents (w/w) in the range 0.14-0.18. The enthalpy relaxation (ΔH) was determined using differential scanning calorimetry (DSC). Samples used had Tg values in the range 24-49 °C. After removing the thermal history (30 °C above Tg, 15 min), samples were isothermally stored at 10 °C below Tg for between 2 and 80 h. The addition of plasticisers induced a significant reduction in the rate of structural relaxation. The linearisation of ΔH by plotting against the logarithm of ageing time showed a reduction in the slope of samples plasticised with both polyols. The reduction in relaxation kinetics may be related to the ability of polyols to act as enhancers of molecular packing, as recently reported using positron spectroscopy (PALS). However, a direct correlation between the relaxation kinetics and the plasticiser's molecular weight could not be established, suggesting that this phenomenon may be governed by complex molecular gelatin-plasticiser-water interactions.
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Affiliation(s)
- Paulo Díaz-Calderón
- Biopolymer Research and Engineering Laboratory (BIOPREL), School of Nutrition and Dietetics, Universidad de los Andes, Chile. Monseñor Alvaro del Portillo 12.455, Las Condes, Santiago, Chile
| | - Bill MacNaughtan
- Division of Food Sciences, The University of Nottingham. Sutton Bonington Campus, Loughbourough LE12 5RD, United Kingdom
| | - Sandra Hill
- Division of Food Sciences, The University of Nottingham. Sutton Bonington Campus, Loughbourough LE12 5RD, United Kingdom
| | - John Mitchell
- Division of Food Sciences, The University of Nottingham. Sutton Bonington Campus, Loughbourough LE12 5RD, United Kingdom
| | - Javier Enrione
- Biopolymer Research and Engineering Laboratory (BIOPREL), School of Nutrition and Dietetics, Universidad de los Andes, Chile. Monseñor Alvaro del Portillo 12.455, Las Condes, Santiago, Chile.
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29
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30
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Thermal transition and thermo-physical properties of potato (Solanum tuberosum L.) var. Russet brown. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2018. [DOI: 10.1007/s11694-018-9772-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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31
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32
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Thorat AA, Forny L, Meunier V, Taylor LS, Mauer LJ. Effects of Chloride and Sulfate Salts on the Inhibition or Promotion of Sucrose Crystallization in Initially Amorphous Sucrose-Salt Blends. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:11259-11272. [PMID: 29182869 DOI: 10.1021/acs.jafc.7b04746] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The effects of salts on the stability of amorphous sucrose and its crystallization in different environments were investigated. Chloride (LiCl, NaCl, KCl, MgCl2, CaCl2, CuCl2, FeCl2, FeCl3, and AlCl3) and sulfate salts with the same cations (Na2SO4, K2SO4, MgSO4, CuSO4, Fe(II)SO4, and Fe(III)SO4) were studied. Samples (sucrose controls and sucrose:salt 1:0.1 molar ratios) were lyophilized, stored in controlled temperature and relative humidity (RH) conditions, and monitored for one month using X-ray diffraction. Samples were also analyzed by differential scanning calorimetry, microscopy, and moisture sorption techniques. All lyophiles were initially amorphous, but during storage the presence of a salt had a variable impact on sucrose crystallization. While all samples remained amorphous when stored at 11 and 23% RH at 25 °C, increasing the RH to 33 and 40% RH resulted in variations in crystallization onset times. The recrystallization time generally followed the order monovalent cations < sucrose < divalent cations < trivalent cations. The presence of a salt typically increased water sorption as compared to sucrose alone when stored at the same RH; however, anticrystallization effects were observed for sucrose combined with salts containing di- and trivalent cations in spite of the increased water content. The cation valency and hydration number played a major role in dictating the impact of the added salt on sucrose crystallization.
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Affiliation(s)
- Alpana A Thorat
- Department of Food Science, Purdue University , 745 Agriculture Mall Drive, West Lafayette, 9 Indiana 47907, United States
- Department of Industrial and Physical Pharmacy, Purdue University , 575 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Laurent Forny
- Nestlé Research Center, Vers-chez-les-Blanc , Route du Jorat, 1005 Lausanne, Switzerland
| | - Vincent Meunier
- Nestlé Research Center, Vers-chez-les-Blanc , Route du Jorat, 1005 Lausanne, Switzerland
| | - Lynne S Taylor
- Department of Industrial and Physical Pharmacy, Purdue University , 575 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Lisa J Mauer
- Department of Food Science, Purdue University , 745 Agriculture Mall Drive, West Lafayette, 9 Indiana 47907, United States
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33
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Maidannyk V, Roos Y. Water sorption, glass transition and “strength” of lactose – Whey protein systems. Food Hydrocoll 2017. [DOI: 10.1016/j.foodhyd.2017.03.025] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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34
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Determination of glass transitions in boiled candies by capacitance based thermal analysis (CTA) and genetic algorithm (GA). J FOOD ENG 2017. [DOI: 10.1016/j.jfoodeng.2016.08.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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35
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Modification of the WLF model for characterization of the relaxation time-temperature relationship in trehalose-whey protein isolate systems. J FOOD ENG 2016. [DOI: 10.1016/j.jfoodeng.2016.05.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Crystallization and structural relaxation times in structural strength analysis of amorphous sugar/whey protein systems. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2016.03.019] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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37
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RAMOS FDM, OLIVEIRA CCMD, SOARES ASP, SILVEIRA JUNIOR V. Assessment of differences between products obtained in conventional and vacuum spray dryer. FOOD SCIENCE AND TECHNOLOGY 2016. [DOI: 10.1590/1678-457x.09216] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Lemos MA, Oliveira JC, Saraiva JA. Effect of Water Content on the Thermal Inactivation Kinetics of Horseradish Peroxidase Freeze-Dried from Alkaline pH. FOOD SCI TECHNOL INT 2016. [DOI: 10.1106/e9nw-1tb4-ku4w-8x7m] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
The thermal inactivation of horseradish peroxidase freeze-dried from solutions of different pH (8, 10 and 11.5, measured at 25 C) and equilibrated to different water contents was studied in the temperature range from 110 to 150 C. The water contents studied (0.0, 1.4, 16.2 and 25.6 g water per 100 g of dry enzyme) corresponded to water activities of 0.0, 0.11, 0.76 and 0.88 at 4 C. The kinetics were well described by a double exponential model. The enzyme was generally more stable the lower the pH of the original solution, and for all pH values, the maximum stability was obtained at 1.4 g water/100 g dry enzyme. Values of z were generally independent of water content and of the pH of the original solution, and in the range of 15–25 °C, usually found in neutral conditions, with the exception of the enzyme freeze dried from pH 11.5 and equilibrated with phosphorus pentoxide, where a z-value of the stable fraction close to 10 C was found.
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Affiliation(s)
- M. A. Lemos
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, 4200 Porto, Portugal
| | - J. C. Oliveira
- Department of Food Science and Technology, University College Cork, Cork, Ireland
| | - J. A. Saraiva
- Department of Chemistry, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
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Castro N, Durrieu V, Raynaud C, Rouilly A, Rigal L, Quellet C. Melt Extrusion Encapsulation of Flavors: A Review. POLYM REV 2016. [DOI: 10.1080/15583724.2015.1091776] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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41
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Weers JG, Miller DP. Formulation Design of Dry Powders for Inhalation. J Pharm Sci 2015; 104:3259-88. [DOI: 10.1002/jps.24574] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2015] [Revised: 06/11/2015] [Accepted: 06/12/2015] [Indexed: 11/09/2022]
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Bonat Celli G, Ghanem A, Su-Ling Brooks M. Influence of freezing process and frozen storage on the quality of fruits and fruit products. FOOD REVIEWS INTERNATIONAL 2015. [DOI: 10.1080/87559129.2015.1075212] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Silaket P, Chatakanonda P, Tran T, Wansuksri R, Piyachomkwan K, Sriroth K. Thermal properties of esterified cassava starches and their maltodextrins in various water systems. STARCH-STARKE 2014. [DOI: 10.1002/star.201400079] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Pawinee Silaket
- Department of Biotechnology, Faculty of Agro-Industry; Kasetsart University; Bangkok Thailand
| | - Pathama Chatakanonda
- Kasetsart Agricultural Agro-Industrial Product Improvement Institute; Bangkok Thailand
| | - Thierry Tran
- Centre de Cooperation Internationale en Recherche Agronomique Pour le Developpement (CIRAD); Dpt. Persyst; UMR Qualisud Montpellier France
| | - Rungtiva Wansuksri
- Cassava and Starch Technology Research Unit; National Center for Genetic Engineering and Biotechnology (BIOTEC); Bangkok Thailand
| | - Kuakoon Piyachomkwan
- Cassava and Starch Technology Research Unit; National Center for Genetic Engineering and Biotechnology (BIOTEC); Bangkok Thailand
| | - Klanarong Sriroth
- Department of Biotechnology, Faculty of Agro-Industry; Kasetsart University; Bangkok Thailand
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Acevedo CA, Díaz-Calderón P, López D, Enrione J. Assessment of gelatin–chitosan interactions in films by a chemometrics approach. CYTA - JOURNAL OF FOOD 2014. [DOI: 10.1080/19476337.2014.944570] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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45
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Chaudhary V, Small DM, Shanks RA, Kasapis S. Enzymatic catalysis in a whey protein matrix at temperatures in the vicinity of the glass transition. Food Res Int 2014. [DOI: 10.1016/j.foodres.2014.04.040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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46
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Teixeira AS, González-Benito ME, Molina-García AD. Measurement of cooling and warming rates in vitrification-based plant cryopreservation protocols. Biotechnol Prog 2014; 30:1177-84. [DOI: 10.1002/btpr.1938] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Revised: 06/02/2014] [Indexed: 11/08/2022]
Affiliation(s)
- Aline S. Teixeira
- ICTAN; Inst. de Ciencia y Tecnología de Alimentos y Nutrición, CSIC; Madrid 28040 Spain
| | - M. Elena González-Benito
- Dpto. de Biología Vegetal, E.U.I.T. Agrícola; Universidad Politécnica de Madrid, Ciudad Universitaria; Madrid 28040 Spain
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Verma S, Rudraraju VS. A systematic approach to design and prepare solid dispersions of poorly water-soluble drug. AAPS PharmSciTech 2014; 15:641-57. [PMID: 24563175 PMCID: PMC4037479 DOI: 10.1208/s12249-014-0093-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Accepted: 01/21/2014] [Indexed: 11/30/2022] Open
Abstract
The objective of the present study was to define a systematic approach to design and prepare solid dispersions of poorly water-soluble drug. The systematic approach can be defined in four phases. In the first phase, glass forming ability is assessed, and in the second phase, probable excipients are screened. The screened excipients are evaluated (third phase) for glass transition temperatures (Tg) and miscibility studies according to Florey-Huggins interaction parameter. The predicted excipients are used to prepare the solid dispersion and evaluated for Tg and any interactions using Fourier transfer infrared studies (fourth phase), and the findings are correlated with phase three predictions. For this investigation, cilostazol (CIL) was selected as model drug, which was classified as a poor glass former. As per the physical chemical properties of CIL, ten excipients, both polymeric and non-polymeric, were selected and screened. Out of these, povidone, copovidone, hypromellose and Eudragit EPO were found theoretically miscible with CIL. After going through phase 2 to phase 4, only povidone, copovidone and hypromellose were confirmed as polymer of choice for preparing the solid dispersion of CIL with a prediction of better physical solid-state stability on the basis of good miscibility between drug and carrier.
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Affiliation(s)
- Sanjay Verma
- Centre for Pharmaceutical Sciences, Jawaharlal Nehru Technological University, Kukatpally, Hyderabad, 500 085, India,
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Farroni AE, del Pilar Buera M. Cornflake Production Process: State Diagram and Water Mobility Characteristics. FOOD BIOPROCESS TECH 2014. [DOI: 10.1007/s11947-014-1270-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Muscat D, Adhikari R, McKnight S, Guo Q, Adhikari B. The physicochemical characteristics and hydrophobicity of high amylose starch–glycerol films in the presence of three natural waxes. J FOOD ENG 2013. [DOI: 10.1016/j.jfoodeng.2013.05.033] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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50
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Designing a gelatin/chitosan/hyaluronic acid biopolymer using a thermophysical approach for use in tissue engineering. Bioprocess Biosyst Eng 2013; 36:1947-56. [PMID: 23708649 DOI: 10.1007/s00449-013-0971-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Accepted: 05/07/2013] [Indexed: 12/13/2022]
Abstract
Cell culture on biopolymeric scaffolds has provided treatments for tissue engineering. Biopolymeric mixtures based on gelatin (Ge), chitosan (Ch) and hyaluronic acid (Ha) have been used to make scaffolds for wound healing. Thermal and physical properties of scaffolds prepared with Ge, Ch and Ha were characterized. Thermal characterization was made by using differential scanning calorimetry (DSC), and physical characterization by gas pycnometry and scanning electron microscopy. The effects of Ge content and cross-linking on thermophysical properties were evaluated by means of a factorial experiment design (central composite face centered). Gelatin content was the main factor that affects the thermophysical properties (microstructure and thermal transitions) of the scaffold. The effect of Ge content of the scaffolds for tissue engineering was studied by seeding skin cells on the biopolymers. The cell attachment was not significantly modified at different Ge contents; however, the cell growth rate increased linearly with the decrease of the Ge content. This relationship together with the thermophysical characterization may be used to design scaffolds for tissue engineering.
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