Academic literature on the topic 'Extrusion-spheronization'
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Journal articles on the topic "Extrusion-spheronization"
Jain, Satishkumar P., Pirthi Pal Singh, and Purnima D. Amin. "Alternative extrusion–spheronization aids." Drug Development and Industrial Pharmacy 36, no. 11 (June 3, 2010): 1364–76. http://dx.doi.org/10.3109/03639045.2010.482590.
Full textZhang, Rui Shi, J. Z. Pan, and L. W. Wang. "Manufacture of Fine AL2O3 Granules as Catalyst Carrier by an Extrusion/Spheronization Method." Advanced Materials Research 44-46 (June 2008): 361–66. http://dx.doi.org/10.4028/www.scientific.net/amr.44-46.361.
Full textSantoso, Rahmat, and Fiqi Aliudin. "KAJIAN PUSTAKA FORMULASI DAN EVALUASI MIKROKAPSUL SALUT ENTERIK MENGGUNAKAN ACRYL-EZE® & SURETERIC DENGAN METODE PENGGABUNGAN MIKROENKAPSULASI DENGAN EKSTRUSI-SFERONISASI." Jurnal Riset Kefarmasian Indonesia 2, no. 3 (September 15, 2020): 122–36. http://dx.doi.org/10.33759/jrki.v2i3.89.
Full textSinha, Vivek Ranjan, M. K. Agrawal, A. Agarwal, Gurpreet Singh, and D. Ghai. "Extrusion-Spheronization: Process Variables and Characterization." Critical Reviews in Therapeutic Drug Carrier Systems 26, no. 3 (2009): 275–331. http://dx.doi.org/10.1615/critrevtherdrugcarriersyst.v26.i3.20.
Full textGOSKONDA, S., G. HILEMAN, and S. UPADRASHTA. "Controlled release pellets by extrusion-spheronization." International Journal of Pharmaceutics 111, no. 1 (October 6, 1994): 89–97. http://dx.doi.org/10.1016/0378-5173(94)90405-7.
Full textIyer, R. M., L. L. Augsburger, D. G. Pope, and R. D. Shah. "Extrusion/Spheronization—Effect of Moisture Content and Spheronization Time on Pellet Characteristics." Pharmaceutical Development and Technology 1, no. 4 (January 1996): 325–31. http://dx.doi.org/10.3109/10837459609031427.
Full textM. P., Gowrav, Umme Hani, Hosakote G. Shivakumar, Riyaz Ali M. Osmani, and Atul Srivastava. "Polyacrylamide grafted guar gum based glimepiride loaded pH sensitive pellets for colon specific drug delivery: fabrication and characterization." RSC Advances 5, no. 97 (2015): 80005–13. http://dx.doi.org/10.1039/c5ra17257h.
Full textSteckel, H., and F. Mindermann-Nogly. "Production of chitosan pellets by extrusion/spheronization." European Journal of Pharmaceutics and Biopharmaceutics 57, no. 1 (January 2004): 107–14. http://dx.doi.org/10.1016/s0939-6411(03)00156-5.
Full textJadhav, Namdeo, Preeti Irny, Ashwini Mokashi, Pravin Souche, and Anant Paradkar. "Pelletization by Extrusion Spheronization Technique: An Excipient Review." Drug Delivery Letterse 2, no. 2 (July 1, 2012): 132–45. http://dx.doi.org/10.2174/2210303111202020132.
Full textJadhav, Namdeo, Preeti Irny, Ashwini Mokashi, Pravin Souche, and Anant Paradkar. "Pelletization by Extrusion Spheronization Technique: An Excipient Review." Drug Delivery Letters 2, no. 2 (July 1, 2012): 132–45. http://dx.doi.org/10.2174/2210304x11202020132.
Full textDissertations / Theses on the topic "Extrusion-spheronization"
Fielden, Krystyna Elzbieta. "Extrusion and spheronization of microcrystalline cellulose and lactose mixtures." Thesis, University College London (University of London), 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.445344.
Full textZhang, Jinzhou. "Preparation and characterization of oxidized cellulose beads by extrusion/spheronization for chemoembolization." Diss., University of Iowa, 2013. https://ir.uiowa.edu/etd/2028.
Full textPather, Sathasivan Indiran. "An investigation of the production of non-coated sustained release beads by extrusion and Spheronization." University of the Western Cape, 1995. http://hdl.handle.net/11394/8457.
Full textThe popularity and increasing complexity of sustained release dosage forms has resulted in increased costs to the patient. One approach to achieve cheaper, yet effective, sustained release medication is through the simplification of production processes. Matrix tablets have been used to sustain the release of numerous drugs and are cheap to prepare. Since they are single-unit dosage forms, however, they display less predictable transit through the gastrointestinal tract. Hence, they provide less reliable blood levels of the drug in comparison with multi particulate dosage forms. Of the various types of multiparticulates available, pellets are popular for oral administration. A fairly recent innovation, in pelletization technology, is extrusion and spheronization. With this technique it is possible to produce pellets with a high degree of drug loading directly and rapidly. The drug loaded beads are usually coated for a sustained release effect. If one could omit the coating step, it would avoid many problems (thus reducing the number of quality control procedures required) and save chemicals, labour and capital for the purchase of additional equipment. The primary aim of this project was to investigate the preparation of non-coated, spheronized sustained release pellets, while a secondary aim was to prepare beads that can be compressed into sustained release tablets. A tablet can accommodate a larger mass and the compaction forces involved may enhance the sustained release effect. Several techniques were used in an attempt to sustain the release of drugs of different solubilities. In one series of formulations, a novel method was used to incorporate a binder consisting of ethylcellulose in ethanol. Using this technique, the release of Theophylline was sustained for approximately 8 hours. In other formulations, several materials were added to beads with the aim of forming sustained release matrixes. Only magnesium stearate was able to prolong the release of Acetaminophen and Theophylline for a reasonable time. In an attempt to explain why materials that were successfully used in sustained release matrix tablets were of very limited value in beads, an equation was developed to calculate the approximate distance between the retardant particles. Calculations using this equation revealed that the retardant particles were too far apart, within each bead, to expect consolidation to occur. The discrete retardant particles do not retard drug release effectively. Eudragit?-containing beads, which sustained the release of the drug to a small extent, were successfully compressed into tablets, both on their own and in combination with non pareil seeds. In each case, the sustained release effect was improved by compaction. In the case of the products manufactured with non pareil seeds, the tablets disintegrated rapidly to release the beads, thus ensuring that the advantages of multiparticulates were maintained. Because it was realised that a large amount of the matrix material could not be incorporated within the beads if a high dose drug was formulated with Avicel? PH 101, the idea of forming the matrix outside the beads was developed. Several materials were tried in an attempt to form a sustained release external matrix. Eudragit? RSPO prolonged the dissolution of Theophylline for more than four hours. Magnesium stearate was able to sustain the release of Acetaminophen and Theophylline appreciably. In the latter case, the dissolution, in water, of a standard adult dose of the drug was prolonged for more than 12 hours. However, the dissolution in an acidic medium was much faster. The described technique represents an advance in extrusion and spheronization technology. While beads containing Cutina? HR did not show promise as sustained release units, they compacted to form sustained release tablets of good appearance and acceptable strength. These tablets were considered to have been efficiently prepared because the constituent beads were easily manufactured and showed good flowability, and because a glidant and a lubricant were not required. The production of sustained release Indomethacin beads with a more steady release profile than the innovator's product has also been described in other experiments. The research described in this thesis represents progress towards the widespread commercial production of effective non-coated sustained release beads and may encourage further work towards this goal.
Tomer, Gil. "An investigation of the role of water in the process of extrusion/spheronization of model formulations." Thesis, University College London (University of London), 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391823.
Full textChatchawalsaisin, Jittima. "The influence of hydrophobic additives on the formation and drug release from pellets prepared by extrusion/spheronization." Thesis, University College London (University of London), 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299281.
Full textChinyemba, Patience. "Use of Aloe vera and Aloe marlothii materials as excipients in beads produced by extrusion-spheronization / Patience Chinyemba." Thesis, North-West University, 2012. http://hdl.handle.net/10394/9641.
Full textThesis (MSc (Pharmaceutics))--North-West University, Potchefstroom Campus, 2013.
Nguyen, Thi Trinh Lan. "Extrusion- spheronization of pharmaceutical products : system for the delivery of active ingredients which are poorly soluble by oral route." Thesis, Strasbourg, 2017. http://www.theses.fr/2017STRAF047/document.
Full textImprovement in dissolution of poorly soluble drugs has many challenges.In this thesis, an extrusion-spheronization process was thoroughly studied forimproving dissolubility of drug with nano-emulsion formulation.The aim of the thesis work is to describe the properties and manufacturing processes ofpellets to increase the solubility of poorly soluble active ingredients in water and thus improvetheir bioavailability when administered orally: folic acid (water-insoluble vitamin) andketoprofen (Non-steroidal anti-inflammatory, having anti-inflammatory, analgesic andantipyretic action, class II in the Biopharmaceutical Classification System).This study describes the preparation by extrusion-spheronization, characterisation andin vitro dissolution study of folic acid and ketoprofen pellets. Ketoprofen pellets coated withAcryl-EZE®, Advantia® Performance in a fluid-bed minicoater. The results of the tests showedthe feasibility of the preparation of enteric-coated pellets containing a NSAID and that bycoating the multiparticulate system with either 17.5% Acryl-EZE® 93A92545 or with 12%Advantia® Performance 190024HA49 weight gain, an enteric release of the drug from thepellets can be obtained. The results of dissolution testing indicated that in acidic media, entericfilm coating resulted in a delay in the release of the drug, while no delay was observed in pH6.8 buffer media
Abdalla, Ahmed Mohamed Effat M. [Verfasser], Karsten [Akademischer Betreuer] Mäder, Alfred [Akademischer Betreuer] Blume, and Michaela [Akademischer Betreuer] Schulz-Siegmund. "Development and characterization of self-emulsifying pellets by extrusion, spheronization / Ahmed Mohamed Effat Mohamed Abdalla. Betreuer: Karsten Mäder ; Alfred Blume ; Michaela Schulz-Siegmund." Halle, Saale : Universitäts- und Landesbibliothek Sachsen-Anhalt, 2008. http://d-nb.info/1024859045/34.
Full textSilva, Filho Omar Paulino. "Obtenção de pellets a partir dos extratos líquidos padronizados de Brosimum gaudichaudii Trécul (Moraceae) ou Lafoensia pacari A. St.-Hil. (Lythraceae)." Universidade Federal de Goiás, 2014. http://repositorio.bc.ufg.br/tede/handle/tede/7463.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
Pellets are spherical solid oral dosage forms that can be used in the development of new pharmaceutical products with standardized plant extracts. Brosimum gaudichaudii Trécul (Moraceae) and Lafoensia pacari A. St.-Hil. (Lythraceae) are typical species from the Cerrado biome. The extract obtained from the roots of B. gaudichaudii is traditionally used in the treatment of vitiligo, its effectiveness is due to the presence of the chemical markers psoralen and bergapten. As for L. pacari, the barks of the branches and trunk are traditionally used in the treatment of gastric ulcers, highly valued for there anti-inflammatory and wound healing because of there ellagic acid content. For each of these species optimal extractive methods exist to obtain standardized liquid extracts. However there are no studies that propose the development of solid oral dosage forms from them. Thus, the present study is aimed at obtaining pellets from the standardized liquid extract of the B. gaudichaudii roots, furthermore to determine the efficiency of a photoprotector coating on the stability of psoralen and bergapten and also obtaining pellets with standardized liquid extract of the L. pacari barks from the branches and trunk. The B. gaudichaudii roots were collected in the city of Jussara, Goiás, and the L. pacari barks in Niquelândia, Goiás. Separately, the raw materials were cleaned, dried in an oven with forced air circulation, then subsequently milled for the extractive process. After the standard liquid extract of B. gaudichaudii had been obtained, six formulas were developed at bench scale. Among these, one stood out by the homogeneity of the lot and the sphericity of its pellets. This formula had been selected to be sacaled-up and it`s composition had been formed by 49.5% (w/w) of microcrystalline cellulose (MCC), 1% (w/w) of hydroxypropylmethyl cellulose (HPMC) and 49.5% (w/w) of that extract. The pellets obtained from the scaled formula were divided into two portions, one of them had been coated with a photoprotective layer and both were subjected to a photostability test. The degradation of the markers had been evident only in the uncoated pellets. The reduction of 1.87% (w/w) in the content of psoralen and 8.1% (w/w) in bergapten content had been observed after 3 J/cm2 exposure to UVB radiation. After exposing to 30 J/cm2 of UVA, there had been a reduction of 24.1% (w/w) of psoralen and 28.48% (w/w) of bergapten. Therefore, the application of the photoprotective coating had been an effective alternative and ensured the stability of the chemical markers after the test. With respect to the liquid extract of L. pacari, 13 formulas were obtained among which only two formed pellets whose batch homogeneity had been greater than 70%. Among them, only one had been chosen to obtain the first scaled-up model. With the production of the scaled-up batch, it had been observed that formulas prepared with a lower proportion of standardized liquid extract of L. pacari had enabled us to obtaing more homogeneous, spherical and a smoother pellets. Based on these results and due to the innovative character of the studies, this work can be used as a model for future trials designed to obtain pellets with standardized liquid extract of B. gaudichaudii or L. pacari.
Pellets são formas farmacêuticas sólidas orais esféricas que podem ser utilizadas no desenvolvimento de novos produtos farmacêuticos a partir de extratos vegetais padronizados. Brosimum gaudichaudii Trécul (Moraceae) e Lafoensia pacari A. St.-Hil. (Lythraceae) são espécies típicas do bioma Cerrado. O extrato obtido das raízes de B. gaudichaudii é utilizado tradicionalmente no tratamento de vitiligo, cuja eficácia se deve pela presença dos marcadores químicos psoraleno e bergapteno. Quanto à espécie L. pacari, são tradicionalmente utilizados as cascas dos galhos e do tronco no tratamento de úlceras gástricas, cuja ação anti-inflamatória e cicatrizante é atribuída ao ácido elágico. Para cada uma destas espécies existem métodos extrativos otimizados para obtenção de extratos líquidos padronizados nos respectivos marcadores químicos. No entanto, não há estudos que proponham o desenvolvimento de formas farmacêuticas sólida orais a partir destes. Assim, o presente trabalho teve como objetivo obter pellets a partir do extrato hidroalcoólico das raízes de Brosimum gaudichaudii, padronizado em psoraleno e bergapteno, determinar a eficácia do revestimento fotoprotetor na estabilidade do psoraleno e bergapteno, além de obter pellets com o extrato hidroalcoólico das cascas dos galhos e do tronco de Lafoensia pacari, padronizado em ácido elágico. As raízes de B. gaudichaudii foram coletadas no município de Jussara, Goiás, e as cascas dos galhos e do tronco de L. pacari em Niquelândia, Goiás. Separadamente, as matérias-primas vegetais foram limpas, secas em estufa com circulação forçada de ar, posteriormente trituradas para a obtenção dos respectivos extratos líquidos padronizados. A partir do extrato líquido padronizado de B. gaudichaudii, foram obtidas seis fórmulas em escala de bancada. Dentre estas, uma se destacou pela homogeneidade do lote e pela esfericidade dos pellets. Deste modo, a fórmula que se destacou foi selecionada e escalonada, sua composição é formada pela mistura de XX% (m/m) de celulose microcristalina (CMC), X% (m/m) de hidroxipropilmetilcelulose (HPMC) e 49,5% deste extrato. Os pellets obtidos a partir da fórmula escalonada foram divididos em duas partes, em uma foi aplicado o revestimento fotoprotetor e ambas foram submetidas ao ensaio de fotoestabilidade. Desse modo, a degradação dos marcadores foi evidente apenas nos pellets sem o revestimento, cuja redução de no teor de psoraleno e bergapteno foi igual a 1,87% (m/m) e 8,1% (m/m), após a exposição a 3 J/cm2 de radiação UVB. Após a exposição a 30 J/cm2 de UVA, houve a redução de 24,1% (m/m) de psoraleno e 28,48% (m/m) de bergapteno. Portanto, a aplicação do revestimento fotoprotetor foi uma alternativa eficaz e garantiu a estabilidade dos marcadores químicos após o ensaio. Com relação ao extrato líquido de L. pacari, foram obtidas 13 fórmulas, dentre as quais apenas duas formaram pellets cuja homogeneidade dos lotes foi superior a 70% e apenas uma foi escolhida como modelo para a obtenção do lote piloto. Com a produção do lote piloto foi observado que fórmulas elaboradas com menor proporção do extrato padronizado de L. pacari e a mecanização do processo de mistura dos componentes da fórmula, possibilitam a obtenção de pellets mais esféricos, homogêneos e com superfície menos irregular. Diante dos resultados obtidos e devido ao caráter inovador dos estudos realizados, este trabalho pode ser utilizado como modelo para ensaios futuros destinados a obtenção de pellets com o extrato líquido padronizado de B. gaudichaudii ou L. pacari.
Kratz, Cristiane de Pellegrini. "Obtenção de comprimidos contendo grânulos deformantes e grânulos revestidos gastro-resistentes." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2002. http://hdl.handle.net/10183/147657.
Full textMonolythic particulate systems containing the active constituents as coated pellets became great interest due to the improvement of safety and bioavailability. The use of such units as components of tablets shows as main advantages the divisibility of the pharmaceutical dosage form without loosing the desired biopharmaceutical profile of the drug. Consequently for the tablet production, the integrity of the polymeric film must be attained. A strategic option involves the utilization of inert soft pellets, which could be compressed together with the film coated pellets, absorbing the compaction forces. In this work the production of soft pellets was investigated using two wet granulation methods and evaluating the influence of formulation adjuvants on the pellets properties. The extrusion/spheronization technique yielded pellets with acceptable flow, packing and mechanical characteristics. The influence of the adjuvants on the technological steps was carried out through a statistical designed experiment. Microcrystalline cellulose from two producers, the disintegrants sodium croscarmellose and crospovidone, and aqueous and hydroethanolic dispersions of povidone, as binder, were tested. For the tablets development omeprazol gastroresistant film coated pellets were used as model. Aiming at the study of the influence of the soft pellets composition on drug lyoavailability was performed a 23 factorial experiment. The soft pellets protected at different intensities the polymeric coating of the gastroresistant pellets.
Book chapters on the topic "Extrusion-spheronization"
Nguyen, Thi Trinh Lan, Nicolas Anton, and Thierry F. Vandamme. "Nutraceutical compounds encapsulated by extrusion-spheronization." In New Polymers for Encapsulation of Nutraceutical Compounds, 195–230. Chichester, UK: John Wiley & Sons, Ltd, 2017. http://dx.doi.org/10.1002/9781119227625.ch9.
Full textErkoboni, David F. "Extrusion/Spheronization as a Granulation Technique." In Handbook of Pharmaceutical Granulation Technology, 409–43. 4th ed. Fourth edition. | Boca Raton, FL : CRC Press, 2021. | Series: Drugs and the pharmaceutical sciences: CRC Press, 2021. http://dx.doi.org/10.1201/9780429320057-12-14.
Full textThommes, Markus, and Peter Kleinebudde. "The Science and Practice of Extrusion-Spheronization." In Advances in Delivery Science and Technology, 37–63. New York, NY: Springer New York, 2017. http://dx.doi.org/10.1007/978-1-4939-7012-4_3.
Full textNatarajan, Jawahar, and Veera Venkata Satyanarayana Reddy Karri. "Formulation and Comparison of Lipophilic Drugs Through Self-Emulsifying Pellets Using Extrusion–Spheronization Technique." In Nanoparticles in Polymer Systems for Biomedical Applications, 176–202. Oakville, Canada ; Waretown, NJ : Apple Academic Press, [2019]: Apple Academic Press, 2018. http://dx.doi.org/10.1201/9781351047883-7.
Full textVillar-López, M. E., F. Otero-Espinar, and J. Blanco-Méndez. "Preparation by Extrusion/Spheronization of Triamcinolone / ß-Cyclodextrin Pellets as a Fast Release Dosage Form." In Proceedings of the Ninth International Symposium on Cyclodextrins, 483–86. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4681-4_115.
Full text"Extrusion/Spheronization." In Pharmaceutical Extrusion Technology, 296–341. CRC Press, 2003. http://dx.doi.org/10.1201/9780203911532-18.
Full textErkoboni, David. "Extrusion/Spheronization." In Drugs and the Pharmaceutical Sciences. Informa Healthcare, 2003. http://dx.doi.org/10.1201/9780203911532.ch15.
Full textIyer, Raman, Navnit Shah, Wantanee Phuapradit, Harpreet Sandhu, and Hashim Ahmed. "Scale-Up of Extrusion and Spheronization." In Drugs and the Pharmaceutical Sciences, 325–69. Informa Healthcare, 2005. http://dx.doi.org/10.1201/9781420026658.ch11.
Full text"Extrusion/Spheronization as a Granulation Technique." In Handbook of Pharmaceutical Granulation Technology, 361–92. CRC Press, 2005. http://dx.doi.org/10.1201/9780849354953-14.
Full textMehta, Ketan, Gurvinder Singh Rekhi, and Dilip Parikh. "Extrusion/Spheronization as a Granulation Technique." In Drugs and the Pharmaceutical Sciences, 333–64. Informa Healthcare, 2005. http://dx.doi.org/10.1201/9780849354953.ch11.
Full textConference papers on the topic "Extrusion-spheronization"
Ibrahim, Yousif, Katalin Kristó, Géza Regdon, and Tamás Sovány. "Effect of Processing Conditions and Material Attributes on the Design Space of Lysozyme Pellets Prepared by Extrusion/Spheronization." In II. Symposium of Young Researchers on Pharmaceutical Technology,Biotechnology and Regulatory Science. Szeged: Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Faculty of Pharmacy, 2020. http://dx.doi.org/10.14232/syrptbrs.2020.op34.
Full textReports on the topic "Extrusion-spheronization"
Dimitrov, Milen, and Teodora Popova. Technological and Biopharmaceutical Characterization of Ethylcellulose-based Pellets with Montelukast Sodium Prepared via Wet Extrusion and Spheronization. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, May 2018. http://dx.doi.org/10.7546/crabs.2018.05.06.
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