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Investigation of excipients influence on rheological behaviour of hydrogels with dimethindene maleate and dexpanthenol: conditions of controlled shear rate. CURRENT ISSUES IN PHARMACY AND MEDICAL SCIENCES 2021. [DOI: 10.2478/cipms-2021-0017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Every year, the number of cases of hypersensitivity to insect bites increases. Thus, particular attention needs to be paid to the treatment of insect allergy in children, as scratching the bites can complicate the healing process and lead to infection. Therefore, a topical issue for modern medicine and pharmacy is the development of a gel of combined anti-allergic, reparative and anti-inflammatory action for the treatment of local manifestations of allergic skin reactions. Rheological studies are one of the stages of pharmaceutical development of soft dosage forms. In this study, we perform rheological studies of hydrogels containing 0.1% dimethindene maleate and 3.0% dexpanthenol made on different carriers of dispersed structures: Carbopol™ Polymers carbomer Ultrez 10 NF, Hydroxypropyl methylcellulose (HPMC) of brand Metolose SR-90SH-100000SR, Ziboxan F200 xanthan gum. The rheological studies were undertaken using a rheometer in controlled shear rate mode CSR. Basic structural and mechanical indices of the dispersed systems were determined. These included: yield stress, structural viscosity, viscosity at infinite shear rate, the hysteresis loop area. Moreover, dynamic liquefaction coefficients have been calculated. Based on the rheological studies of hydrogels containing 0.1% dimethindene maleate and 3.0% dexpanthenol prepared with various carriers, the use of 1.8% and 2.0% HPMC hydrogels, 2.0% and 2.5% xanthan gum hydrogels, 0.5% and 0.75% carbomer gels is recommended for further biopharmaceutical studies. The application of one of these formulations as the final composition, provides adhesion and will not complicate the scaling-up of the process.
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Dey M, Ghosh B, Giri TK. Enhanced intestinal stability and pH sensitive release of quercetin in GIT through gellan gum hydrogels. Colloids Surf B Biointerfaces 2020; 196:111341. [DOI: 10.1016/j.colsurfb.2020.111341] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 05/16/2020] [Accepted: 08/13/2020] [Indexed: 11/17/2022]
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Production of Lactic Acid from Carob, Banana and Sugarcane Lignocellulose Biomass. Molecules 2020; 25:molecules25132956. [PMID: 32605022 PMCID: PMC7412479 DOI: 10.3390/molecules25132956] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/23/2020] [Accepted: 06/25/2020] [Indexed: 12/18/2022] Open
Abstract
Lignocellulosic biomass from agricultural residues is a promising feedstock for lactic acid (LA) production. The aim of the current study was to investigate the production of LA from different lignocellulosic biomass. The LA production from banana peduncles using strain Bacillus coagulans with yeast extract resulted in 26.6 g LA·L−1, and yield of 0.90 g LA·g−1 sugars. The sugarcane fermentation with yeast extract resulted in 46.5 g LA·L−1, and yield of 0.88 g LA·g−1 sugars. Carob showed that addition of yeast extract resulted in higher productivity of 3.2 g LA·L−1·h−1 compared to without yeast extract where1.95 g LA·L−1·h−1 was obtained. Interestingly, similar LA production was obtained by the end where 54.8 and 51.4 g·L−1 were obtained with and without yeast extract, respectively. A pilot scale of 35 L using carob biomass fermentation without yeast extract resulted in yield of 0.84 g LA·g−1 sugars, and productivity of 2.30 g LA·L−1·h−1 which indicate a very promising process for future industrial production of LA.
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Boutasknit A, Baslam M, Ait-El-Mokhtar M, Anli M, Ben-Laouane R, Douira A, El Modafar C, Mitsui T, Wahbi S, Meddich A. Arbuscular Mycorrhizal Fungi Mediate Drought Tolerance and Recovery in Two Contrasting Carob ( Ceratonia siliqua L.) Ecotypes by Regulating Stomatal, Water Relations, and (In)Organic Adjustments. PLANTS (BASEL, SWITZERLAND) 2020; 9:E80. [PMID: 31936327 PMCID: PMC7020440 DOI: 10.3390/plants9010080] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/04/2020] [Accepted: 01/06/2020] [Indexed: 11/16/2022]
Abstract
Irregular precipitation and drought caused an increase in tree mortality rates in multiple forest biomes with alterations in both ecosystem services and carbon balance. Carob (Ceratonia siliqua) growth and production in arid and semi-arid ecosystems are likely affected by climate change-induced droughts. Understanding the physiological responses of drought-induced early-stage tree death and strategies to enhance drought tolerance and optimize growth will help tree improvement programs. Mycorrhizal inoculation has a pronounced impact on plant growth, water absorption, mineral nutrition, and protection from abiotic stresses. However, a better understanding of these complex interconnected cellular processes and arbuscular mycorrhizal fungi (AMF)-mediated mechanisms regulating drought tolerance in plants will enhance its potential application as an efficient approach for bio-amelioration of stresses. The objectives of this work were to elucidate the different effects of autochthone AMF on inorganic solute and water content uptakes, organic adjustments (sugar and proteins content), leaf gas exchange (stomatal conductance and efficiency of photosystems I and II), and oxidative damage of two contrasting ecotypes of carob seedlings: coastal (southern ecotype (SE)) and in-land (northern ecotype (NE)) under control (C), drought (by cessation of irrigation for 15 days (15D)), and recovery (R) conditions. Our findings showed that AMF promoted growth, nutrient content, and physiological and biochemical parameters in plants of both ecotypes during C, 15D, and R conditions. After four days of recovery, stomatal conductance (gs), the maximum photochemical efficiency of PSII (Fv/Fm), water content, and plant uptake of mineral nutrients (P, K, Na, and Ca) were significantly higher in shoots of mycorrhizal (AM) than non-mycorrhizal (NM) control plants. Consequently, AMF reduced to a greater degree the accumulation of hydrogen peroxide (H2O2) and oxidative damage to lipid (malondialdehyde (MDA)) content in AM than NM plants in NE and SE, after recovery. Altogether, our findings suggest that AMF can play a role in drought resistance of carob trees at an early stage by increasing the inorganic solutes (P, K, Na, and Ca), water content uptake, organic solutes (soluble sugars and protein content), stomatal conductance, and defense response against oxidative damage during re-watering after drought stress.
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Affiliation(s)
- Abderrahim Boutasknit
- Laboratory of Biotechnology and Plant Physiology, Faculty of Sciences Semlalia, Cadi Ayyad University, BP: 2390, Marrakesh 40000, Morocco
| | - Marouane Baslam
- Department of Applied Biological Chemistry, Faculty of Agriculture, Niigata University, Niigata 950-2181, Japan
- Department of Life and Food Sciences, Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan
| | - Mohamed Ait-El-Mokhtar
- Laboratory of Biotechnology and Plant Physiology, Faculty of Sciences Semlalia, Cadi Ayyad University, BP: 2390, Marrakesh 40000, Morocco
| | - Mohamed Anli
- Laboratory of Biotechnology and Plant Physiology, Faculty of Sciences Semlalia, Cadi Ayyad University, BP: 2390, Marrakesh 40000, Morocco
| | - Raja Ben-Laouane
- Laboratory of Biotechnology and Plant Physiology, Faculty of Sciences Semlalia, Cadi Ayyad University, BP: 2390, Marrakesh 40000, Morocco
| | - Allal Douira
- Laboratory of Botany and Plant Protection, Faculty of Science, BP. 133, Ibn Tofail University, Kenitra 14000, Morocco
| | - Cherkaoui El Modafar
- Laboratory of Biotechnology and Molecular Bioengineering, Faculty of Sciences and Techniques, Cadi Ayyad University, BP: 2390, Marrakesh 40000, Morocco
| | - Toshiaki Mitsui
- Department of Applied Biological Chemistry, Faculty of Agriculture, Niigata University, Niigata 950-2181, Japan
- Department of Life and Food Sciences, Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan
| | - Said Wahbi
- Laboratory of Biotechnology and Plant Physiology, Faculty of Sciences Semlalia, Cadi Ayyad University, BP: 2390, Marrakesh 40000, Morocco
| | - Abdelilah Meddich
- Laboratory of Biotechnology and Plant Physiology, Faculty of Sciences Semlalia, Cadi Ayyad University, BP: 2390, Marrakesh 40000, Morocco
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Alves A, Miguel SP, Araujo AR, de Jesús Valle MJ, Sánchez Navarro A, Correia IJ, Ribeiro MP, Coutinho P. Xanthan Gum-Konjac Glucomannan Blend Hydrogel for Wound Healing. Polymers (Basel) 2020; 12:E99. [PMID: 31947937 PMCID: PMC7023620 DOI: 10.3390/polym12010099] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/11/2019] [Accepted: 12/21/2019] [Indexed: 02/08/2023] Open
Abstract
Hydrogels are considered to be the most ideal materials for the production of wound dressings since they display a three-dimensional structure that mimics the native extracellular matrix of skin as well as a high-water content, which confers a moist environment at the wound site. Until now, different polymers have been used, alone or blended, for the production of hydrogels aimed for this biomedical application. From the best of our knowledge, the application of a xanthan gum-konjac glucomannan blend has not been used for the production of wound dressings. Herein, a thermo-reversible hydrogel composed of xanthan gum-konjac glucomannan (at different concentrations (1% and 2% w/v) and ratios (50/50 and 60/40)) was produced and characterized. The obtained data emphasize the excellent physicochemical and biological properties of the produced hydrogels, which are suitable for their future application as wound dressings.
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Affiliation(s)
- Andreia Alves
- CPIRN-IPG- Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, Av. Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Salamanca, 37007 Salamanca, Spain
| | - Sónia P. Miguel
- CICS-UBI- Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - André R.T.S. Araujo
- CPIRN-IPG- Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, Av. Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal
- LAQV, REQUIMTE, Department of Chemical Sciences, Laboratory of Applied Chemistry, Faculty of Pharmacy, Porto University, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - María José de Jesús Valle
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Salamanca, 37007 Salamanca, Spain
- Institute of Biopharmaceutical Sciences of University of Salamanca (IBSAL), 37007 Salamanca, Spain
| | - Amparo Sánchez Navarro
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Salamanca, 37007 Salamanca, Spain
- Institute of Biopharmaceutical Sciences of University of Salamanca (IBSAL), 37007 Salamanca, Spain
| | - Ilídio J. Correia
- CICS-UBI- Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, P-3030 790 Coimbra, Portugal
| | - Maximiano P. Ribeiro
- CPIRN-IPG- Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, Av. Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal
- CICS-UBI- Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Paula Coutinho
- CPIRN-IPG- Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, Av. Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal
- CICS-UBI- Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
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Smart karaya-locust bean gum hydrogel particles for the treatment of hypertension: Optimization by factorial design and pre-clinical evaluation. Carbohydr Polym 2019; 210:274-288. [DOI: 10.1016/j.carbpol.2019.01.069] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 01/10/2019] [Accepted: 01/18/2019] [Indexed: 11/22/2022]
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Nejati L, Kalantari F, Bavarsad N, Saremnejad F, Moghaddam PT, Akhgari A. Investigation of using pectin and chitosan as natural excipients in pellet formulation. Int J Biol Macromol 2018; 120:1208-1215. [DOI: 10.1016/j.ijbiomac.2018.08.129] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 08/09/2018] [Accepted: 08/25/2018] [Indexed: 01/14/2023]
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8
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Braz L, Grenha A, Corvo MC, Lourenço JP, Ferreira D, Sarmento B, Rosa da Costa AM. Synthesis and characterization of Locust Bean Gum derivatives and their application in the production of nanoparticles. Carbohydr Polym 2018; 181:974-985. [DOI: 10.1016/j.carbpol.2017.11.052] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 10/26/2017] [Accepted: 11/15/2017] [Indexed: 01/23/2023]
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Coviello T, Margheritelli S, Matricardi P, Di Meo C, Cerreto F, Alhaique F, Abrami M, Grassi M. Influence of borate amount on the swelling and rheological properties of the Scleroglucan/borax system. J Appl Polym Sci 2016. [DOI: 10.1002/app.42860] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tommasina Coviello
- Dipartimento di Chimica e Tecnologie del Farmaco; Università di Roma “La Sapienza,”; Roma 00185 Italy
| | - Silvia Margheritelli
- Dipartimento di Chimica e Tecnologie del Farmaco; Università di Roma “La Sapienza,”; Roma 00185 Italy
| | - Pietro Matricardi
- Dipartimento di Chimica e Tecnologie del Farmaco; Università di Roma “La Sapienza,”; Roma 00185 Italy
| | - Chiara Di Meo
- Dipartimento di Chimica e Tecnologie del Farmaco; Università di Roma “La Sapienza,”; Roma 00185 Italy
| | - Felice Cerreto
- Dipartimento di Chimica e Tecnologie del Farmaco; Università di Roma “La Sapienza,”; Roma 00185 Italy
| | - Franco Alhaique
- Dipartimento di Chimica e Tecnologie del Farmaco; Università di Roma “La Sapienza,”; Roma 00185 Italy
| | - Michela Abrami
- Dipartimento di Scienze della Vita, Ospedale di Cattinara; Università di Trieste; Trieste I-34149 Italy
| | - Mario Grassi
- Dipartimento di Ingegneria e Architettura; Università di Trieste; Trieste 34127 Italy
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Villanova J, Ayres E, Oréfice R. Design, characterization and preliminary in vitro evaluation of a mucoadhesive polymer based on modified pectin and acrylic monomers with potential use as a pharmaceutical excipient. Carbohydr Polym 2015; 121:372-81. [DOI: 10.1016/j.carbpol.2014.12.052] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Revised: 12/17/2014] [Accepted: 12/18/2014] [Indexed: 12/23/2022]
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Rheology of dispersions of xanthan gum, locust bean gum and mixed biopolymer gel with silicon dioxide nanoparticles. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 48:347-53. [DOI: 10.1016/j.msec.2014.12.040] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Revised: 10/07/2014] [Accepted: 12/07/2014] [Indexed: 01/01/2023]
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Topical curcumin-loaded hydrogels obtained using galactomannan from Schizolobium parahybae and xanthan. Carbohydr Polym 2015; 116:229-36. [DOI: 10.1016/j.carbpol.2014.07.043] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2014] [Revised: 07/16/2014] [Accepted: 07/19/2014] [Indexed: 12/12/2022]
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Wicker L, Kim Y, Kim MJ, Thirkield B, Lin Z, Jung J. Pectin as a bioactive polysaccharide – Extracting tailored function from less. Food Hydrocoll 2014. [DOI: 10.1016/j.foodhyd.2014.01.002] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Coviello T, Trotta AM, Marianecci C, Carafa M, Di Marzio L, Rinaldi F, Di Meo C, Alhaique F, Matricardi P. Gel-embedded niosomes: preparation, characterization and release studies of a new system for topical drug delivery. Colloids Surf B Biointerfaces 2014; 125:291-9. [PMID: 25524220 DOI: 10.1016/j.colsurfb.2014.10.060] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Revised: 08/10/2014] [Accepted: 10/19/2014] [Indexed: 10/24/2022]
Abstract
In the present paper physical gels, prepared with two polysaccharides, Xanthan and Locust Bean Gum, and loaded with non-ionic surfactant vesicles, are described. The vesicles, composed by Tween20 and cholesterol or by Tween85 and Span20, were loaded with Monoammonium glycyrrhizinate for release experiments. Size and zeta (ζ)-potential of the vesicles were evaluated and the new systems were characterized by rheological and dynamo-mechanical measurements. For an appropriate comparison, a Carbopol gel and a commercial gel for topical applications were also tested. The new formulations showed mechanical properties comparable with those of the commercial product indicating their suitability for topical applications. In vitro release experiments showed that the polysaccharide network protects the integrity of the vesicles and leads to their slow release without disruption of the aggregated structures. Furthermore, being the vesicles composed of molecules possessing enhancing properties, the permeation of the loaded drugs topically delivered can be improved. Thus, the new systems combine the advantages of matrices for a modified release (polymeric component) and those of an easier permeability across the skin (vesicle components). Finally, shelf live experiments indicated that the tested gel/vesicle formulations were stable over 1 year with no need of preservatives.
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Affiliation(s)
- T Coviello
- Department of Drug Chemistry and Technologies, "Sapienza", University of Rome, Rome, Italy
| | - A M Trotta
- Department of Drug Chemistry and Technologies, "Sapienza", University of Rome, Rome, Italy
| | - C Marianecci
- Department of Drug Chemistry and Technologies, "Sapienza", University of Rome, Rome, Italy
| | - M Carafa
- Department of Drug Chemistry and Technologies, "Sapienza", University of Rome, Rome, Italy.
| | - L Di Marzio
- Department of Pharmacy, University of Chieti "G. D'Annunzio", Chieti, Italy
| | - F Rinaldi
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00185 Rome, Italy
| | - C Di Meo
- Department of Drug Chemistry and Technologies, "Sapienza", University of Rome, Rome, Italy
| | - F Alhaique
- Department of Drug Chemistry and Technologies, "Sapienza", University of Rome, Rome, Italy
| | - P Matricardi
- Department of Drug Chemistry and Technologies, "Sapienza", University of Rome, Rome, Italy
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Durazzo A, Turfani V, Narducci V, Azzini E, Maiani G, Carcea M. Nutritional characterisation and bioactive components of commercial carobs flours. Food Chem 2014; 153:109-13. [DOI: 10.1016/j.foodchem.2013.12.045] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Revised: 12/05/2013] [Accepted: 12/09/2013] [Indexed: 12/30/2022]
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Dhaouadi K, Belkhir M, Akinocho I, Raboudi F, Pamies D, Barrajón E, Estevan C, Fattouch S. Sucrose supplementation during traditional carob syrup processing affected its chemical characteristics and biological activities. Lebensm Wiss Technol 2014. [DOI: 10.1016/j.lwt.2014.01.025] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ansari SA, Matricardi P, Cencetti C, Di Meo C, Carafa M, Mazzuca C, Palleschi A, Capitani D, Alhaique F, Coviello T. Sonication-based improvement of the physicochemical properties of Guar Gum as a potential substrate for modified drug delivery systems. BIOMED RESEARCH INTERNATIONAL 2013; 2013:985259. [PMID: 23984426 PMCID: PMC3747617 DOI: 10.1155/2013/985259] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Accepted: 06/26/2013] [Indexed: 11/29/2022]
Abstract
Guar Gum is a natural polysaccharide that, due to its physicochemical properties, is extensively investigated for biomedical applications as a matrix for modified drug delivery, but it is also used in the food industry as well as in cosmetics. A commercial sample of Guar Gum was sonicated for different periods of time, and the reduction in the average molecular weight was monitored by means of viscometric measurements. At the same time, the rheological behaviour was also followed, in terms of viscoelasticity range, flow curves, and mechanical spectra. Sonicated samples were used for the preparation of gels in the presence of borate ions. The effect of borax on the new samples was investigated by recording mechanical spectra, flow curves, and visible absorption spectra of complexes with Congo Red. The anisotropic elongation, observed in previous studies with tablets of Guar Gum and borax, was remarkably reduced when the sonicated samples were used for the preparation of the gels.
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Affiliation(s)
- Siddique Akber Ansari
- Department of Drug Chemistry and Technologies, University “La Sapienza”, 00185 Rome, Italy
| | - Pietro Matricardi
- Department of Drug Chemistry and Technologies, University “La Sapienza”, 00185 Rome, Italy
| | - Claudia Cencetti
- Department of Drug Chemistry and Technologies, University “La Sapienza”, 00185 Rome, Italy
| | - Chiara Di Meo
- Department of Drug Chemistry and Technologies, University “La Sapienza”, 00185 Rome, Italy
| | - Maria Carafa
- Department of Drug Chemistry and Technologies, University “La Sapienza”, 00185 Rome, Italy
| | - Claudia Mazzuca
- Department of Sciences and Chemical Technologies, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | - Antonio Palleschi
- Department of Sciences and Chemical Technologies, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | - Donatella Capitani
- Magnetic Resonance Laboratory Annalaura Segre, Institute of Chemical Methodologies, CNR Research Area of Rome, Monterotondo Stazione, 00016 Rome, Italy
| | - Franco Alhaique
- Department of Drug Chemistry and Technologies, University “La Sapienza”, 00185 Rome, Italy
| | - Tommasina Coviello
- Department of Drug Chemistry and Technologies, University “La Sapienza”, 00185 Rome, Italy
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López-Cebral R, Paolicelli P, Romero-Caamaño V, Seijo B, Casadei MA, Sanchez A. Spermidine-Cross-linked Hydrogels as Novel Potential Platforms for Pharmaceutical Applications. J Pharm Sci 2013; 102:2632-43. [DOI: 10.1002/jps.23631] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Revised: 05/08/2013] [Accepted: 05/14/2013] [Indexed: 01/25/2023]
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Prajapati VD, Jani GK, Moradiya NG, Randeria NP. Pharmaceutical applications of various natural gums, mucilages and their modified forms. Carbohydr Polym 2012; 92:1685-99. [PMID: 23399207 DOI: 10.1016/j.carbpol.2012.11.021] [Citation(s) in RCA: 228] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Accepted: 11/02/2012] [Indexed: 10/27/2022]
Abstract
A large number of plant based pharmaceutical excipients are available today. Gums and mucilages are the most commonly available plant ingredients with a wide range of applications in pharmaceutical and cosmetic industries. They are being used due to their abundance in nature, safety and economy. They have been extensively explored as pharmaceutical excipients. They are biocompatible, cheap and easily available. Natural materials have advantages over synthetic ones since they are chemically inert, nontoxic, less expensive, biodegradable and widely available. They can also be modified in different ways to obtain tailor-made materials for drug delivery systems and thus can compete with the available synthetic excipients. Recent trend toward the use of plant based and natural products demands the replacement of synthetic additives with natural ones. In this review, we describe the pharmaceutical applications of various natural gums, mucilages and their modified forms for the development of various drug delivery systems.
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Affiliation(s)
- Vipul D Prajapati
- Department of Pharmaceutics and Pharmaceutical Technology, SSR College of Pharmacy, Sayli-Silvassa Road, U.T. of Dadra and Nagar Haveli, Sayli, Silvassa 396 230, India.
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Dionísio M, Grenha A. Locust bean gum: Exploring its potential for biopharmaceutical applications. J Pharm Bioallied Sci 2012; 4:175-85. [PMID: 22923958 PMCID: PMC3425165 DOI: 10.4103/0975-7406.99013] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Revised: 03/21/2012] [Accepted: 04/24/2012] [Indexed: 12/21/2022] Open
Abstract
Polysaccharides have been finding, in the last decades, very interesting and useful applications in the biomedical and, specifically, in the biopharmaceutical field. Locust bean gum is a polysaccharide belonging to the group of galactomannans, being extracted from the seeds of the carob tree (Ceratonia siliqua). This polymer displays a number of appealing characteristics for biopharmaceutical applications, among which its high gelling capacity should be highlighted. In this review, we describe critical aspects of locust bean gum, contributing for its role in biopharmaceutical applications. Physicochemical properties, as well as strong and effective synergies with other biomaterials are described. The potential for in vivo biodegradation is explored and the specific biopharmaceutical applications are discussed.
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Affiliation(s)
- Marita Dionísio
- CBME - Centre for Molecular and Structural Biomedicine/IBB - Institute for Biotechnology and Bioengineering, Faculty of Sciences and Technology, University of Algarve, Campus de Gambelas, Faro, Portugal
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Tizzotti M, Labeau MP, Hamaide T, Drockenmuller E, Charlot A, Fleury E. Synthesis of thermosensitive guar-based hydrogels with tunable physico-chemical properties by click chemistry. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.24015] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Bioadhesive controlled metronidazole release matrix based on chitosan and xanthan gum. Mar Drugs 2010; 8:1716-30. [PMID: 20559494 PMCID: PMC2885086 DOI: 10.3390/md8051716] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2010] [Revised: 03/23/2010] [Accepted: 04/06/2010] [Indexed: 12/15/2022] Open
Abstract
Metronidazole, a common antibacterial drug, was incorporated into a hydrophilic polymer matrix composed of chitosan xanthan gum mixture. Hydrogel formation of this binary chitosan-xanthan gum combination was tested for its ability to control the release of metronidazole as a drug model. This preparation (MZ-CR) was characterized by in vitro, ex vivo bioadhesion and in vivo bioavailability study. For comparison purposes a commercial extended release formulation of metronidazole (CMZ) was used as a reference. The in vitro drug-release profiles of metronidazole preparation and CMZ were similar in 0.1 M HCl and phosphate buffer pH 6.8. Moreover, metronidazole preparation and CMZ showed a similar detachment force to sheep stomach mucosa, while the bioadhesion of the metronidazole preparation was higher three times than CMZ to sheep duodenum. The results of in vivo study indicated that the absorption of metronidazole from the preparation was faster than that of CMZ. Also, MZ-CR leads to higher metronidazole C(max) and AUC relative to that of the CMZ. This increase in bioavailability might be explained by the bioadhesion of the preparation at the upper part of the small intestine that could result in an increase in the overall intestinal transit time. As a conclusion, formulating chitosan-xanthan gum mixture as a hydrophilic polymer matrix resulted in a superior pharmacokinetic parameters translated by better rate and extent of absorption of metronidazole.
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Ballal NV, Shavi GV, Kumar R, Kundabala M, Bhat KS. In vitro sustained release of calcium ions and pH maintenance from different vehicles containing calcium hydroxide. J Endod 2010; 36:862-6. [PMID: 20416434 DOI: 10.1016/j.joen.2009.12.021] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2009] [Revised: 11/30/2009] [Accepted: 12/08/2009] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Calcium hydroxide is widely used as an intracanal medicament in endodontics. Its therapeutic effects depend on the dissociation of calcium hydroxide into calcium and hydroxyl ions, which, in turn, depends on the vehicle used. The purpose of this in vitro study was to evaluate the sustained release of calcium ions and the pH change of calcium hydroxide over a period of 30 days when formulated with propylene glycol, polyethylene glycol 6000, chitosan, and guar gum. METHODS Various formulations were prepared and placed inside the root canals of human teeth and were suspended in glass vials containing distilled water. At specific time intervals, the calcium ion concentration was analyzed using an ultraviolet spectrophotometer. pH changes of the medium were measured at various time intervals up to 30 days. RESULTS Results revealed that chitosan formulation showed the maximum sustained release of calcium ions compared with the other three formulations. All the formulations exhibited high alkaline pH upto 30 days. CONCLUSION From the results of this in vitro study, it can be concluded that chitosan can be used as a promising vehicle for for the sustained release of calcium ions from the calcium hydroxide in the root canal system.
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Affiliation(s)
- Nidambur Vasudev Ballal
- Manipal College of Dental Sciences, and Manipal College of Pharmaceutical Sciences, Manipal, Karnataka, India.
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Paradossi G, Finelli I, Cerroni B, Chiessi E. Adding chemical cross-links to a physical hydrogel. Molecules 2009; 14:3662-75. [PMID: 19783949 PMCID: PMC6255106 DOI: 10.3390/molecules14093662] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2009] [Revised: 08/27/2009] [Accepted: 09/16/2009] [Indexed: 11/16/2022] Open
Abstract
Synergistic hydrogels are often encountered in polysaccharide mixtures widely used in food and biopharma products. The xanthan and konjac glucomannan pair provides one of the most studied synergistic hydrogels. Recently we showed that the junction zones stabilizing the 3D structure of this gel are present as macromolecular complexes in solution formed by the partially depolymerised polysaccharidic chains. The non-covalent interactions stabilizing the structure of the polysaccharidic complex cause the melting of the ordered structure of the complex in the solution and of the hydrogels. Introduction of chemical cross-links in the 3D structure of the synergistic hydrogel removes this behaviour, adding new features to the swelling and to the viscoelastic properties of the cured hydrogel. The use of epichlorohydrin as low molecular weight cross-linker does not impact unfavourably on the viability of NIH 3T3 fibroblasts.
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Affiliation(s)
- Gaio Paradossi
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata and CNR - SOFT, Italy.
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Peculiar behavior of polysaccharide/borax hydrogel tablets: a dynamomechanical characterization. Colloid Polym Sci 2008. [DOI: 10.1007/s00396-008-1980-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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