1
|
Lin L, Tu Y, Li Z, Wu H, Mao H, Wang C. Synthesis and application of multifunctional lignin-modified cationic waterborne polyurethane in textiles. Int J Biol Macromol 2024; 262:130063. [PMID: 38340925 DOI: 10.1016/j.ijbiomac.2024.130063] [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: 10/23/2023] [Revised: 01/22/2024] [Accepted: 02/07/2024] [Indexed: 02/12/2024]
Abstract
Waterborne polyurethanes (WPUs) often have limitations like inadequate weathering resistance and thermal stability. To overcome these shortcomings, lignin has been selected as a modifier for its abundant availability, renewability, and biocompatibility. This study synthesized a cationic WPU using isophorone diisocyanate and polyethylene glycol as raw materials. Hydrophilicity was attained through the inclusion of dihydroxyethyl dodecylamine as a chain extender, while the introduction of epoxy monomers and lignin served to modify the polyurethane. Furthermore, a dye dispersion for cotton fabric dyeing was prepared by combining the synthesized polyurethane, chitosan, and dyes. The cationic nature of the polyurethane played a crucial role in facilitating dye adhesion and uptake on the fabric surface, resulting in improved dyeing performance. The incorporation of epoxy side chains and chitosan cross-linking contributed to the excellent color fastness of the dyed fabrics. Moreover, the incorporation of lignin and chitosan endowed the fabric with antibacterial properties. Simultaneously, it provided effective UV protection, characterized by a high UV protection factor value for the fabrics. This lignin-modified WPU exhibits tremendous potential in applications such as textile coatings, adhesives, and color fixation agents. It effectively addresses the limitations of traditional WPUs and offers notable advantages, including a renewable source, cost-effectiveness, and biocompatibility.
Collapse
Affiliation(s)
- Ling Lin
- School of Textile and Clothing, Yancheng Institute of Technology, Yancheng 224051, China.
| | - Yuanfang Tu
- School of Textile and Clothing, Yancheng Institute of Technology, Yancheng 224051, China
| | - Ziyin Li
- School of Textile and Clothing, Yancheng Institute of Technology, Yancheng 224051, China
| | - Huanling Wu
- School of Textile and Clothing, Yancheng Institute of Technology, Yancheng 224051, China
| | - Haiyan Mao
- School of Textile and Clothing, Yancheng Institute of Technology, Yancheng 224051, China
| | - Chunxia Wang
- School of Textile and Clothing, Yancheng Institute of Technology, Yancheng 224051, China
| |
Collapse
|
2
|
Samyor D, Calderwood D, Carey M, Das AB, Green BD, Deka SC. Dipeptidyl peptidase-4 (DPP-4) inhibitory activity and glucagon-like peptide (GLP-1) secretion in arsenically safe pigmented red rice ( Oryza sativa L .) and its product. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2022; 59:4016-4024. [PMID: 36193357 PMCID: PMC9525560 DOI: 10.1007/s13197-022-05444-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/19/2022] [Indexed: 06/16/2023]
Abstract
Inhibition of DPP-4 and stimulation of GLP-1 secretion are therapeutic strategies for controlling glycaemia in type 2 diabetes. The present study assessed the DPP-4 inhibitory activity and GLP-1 secretory action of pigmented and non-pigmented rice (Oryza sativa L.), along with an extruded food product. Cereal-based extruded food products, with or without passion fruit powder, were prepared from red rice using a twin extruder. Optimal extrusion conditions were determined using a CCD of response surface methodology resulting in optimal conditions to be 97.5 °C, a screw speed of 250 rpm, feed moisture of 25.2% and addition of 11.25% passion fruit powder. Samples were sequentially extracted in n-hexane, ethanol (50%) and water. Ethanol/water (50:50) extracts of rice bran significantly inhibited DPP-4 activity by 70.48 ± 1.06%, comparing favourably with RR (42.55 ± 0.84%), PRR (35.91 ± 1.27%) and PA (29.14 ± 1.23%). DPP-4 inhibitory activity was retained in both extruded products albeit at reduced levels. GLP-1 secretion was stimulated mostly by extruded products extracted with n-hexane or ethanol which upregulated basal secretion by 6.1-fold and 4.2-fold, respectively. ICP-MS results showed that extruded food items have a lower arsenic content. In conclusion, there are potential opportunities for the nutraceuticals and functional food products using pigmented red rice. Supplementary Information The online version contains supplementary material available at 10.1007/s13197-022-05444-x.
Collapse
Affiliation(s)
- Duyi Samyor
- Department of Food Engineering and Technology, Tezpur University, Napaam, Sonitpur, Assam 784028 India
- Institute for Global Food Security, School of Biological Sciences, Queen’s University Belfast, Belfast, UK
| | - Danielle Calderwood
- Institute for Global Food Security, School of Biological Sciences, Queen’s University Belfast, Belfast, UK
| | - Manus Carey
- Institute for Global Food Security, School of Biological Sciences, Queen’s University Belfast, Belfast, UK
| | - Amit B. Das
- Department of Food Engineering and Technology, Tezpur University, Napaam, Sonitpur, Assam 784028 India
| | - Brian D. Green
- Institute for Global Food Security, School of Biological Sciences, Queen’s University Belfast, Belfast, UK
| | - Sankar C. Deka
- Department of Food Engineering and Technology, Tezpur University, Napaam, Sonitpur, Assam 784028 India
| |
Collapse
|
3
|
A Semi-Mechanistic Prediction of Residence Time Metrics in Twin Screw Granulation. Pharmaceutics 2021; 13:pharmaceutics13030393. [PMID: 33809652 PMCID: PMC8002318 DOI: 10.3390/pharmaceutics13030393] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 03/03/2021] [Accepted: 03/08/2021] [Indexed: 11/29/2022] Open
Abstract
This work is concerned with the semi-mechanistic prediction of residence time metrics using historical data from mono-component twin screw wet granulation processes. From the data, several key parameters such as powder throughput rate, shafts rotation speed, liquid binder feed ratio, number of kneading elements in the shafts and the stagger angle between the kneading elements were identified and physical factors were developed to translate those varying parameters into expressions affecting the key intermediate phenomena in the equipment, holdup, flow and mixing. The developed relations were then tested across datasets to evaluate the performance of the model, applying a k-fold optimization technique. The semi-mechanistic predictions were evaluated both qualitatively through the main effects plots and quantitatively through the parity plots and correlations between the tuning constants across datasets. The root mean square error (RMSE) was used as a metric to compare the degree of goodness of fit for different datasets using the developed semi-mechanistic relations. In summary this paper presents a new approach at estimating both the residence time metrics in twin screw wet granulation, mean residence time (MRT) and variance through semi-mechanistic relations, the validity of which have been tested for different datasets.
Collapse
|
4
|
|
5
|
Tanimura S, Singh R, Román-Ospino AD, Ierapetritou M. Residence time distribution modelling and in line monitoring of drug concentration in a tablet press feed frame containing dead zones. Int J Pharm 2020; 592:120048. [PMID: 33161037 DOI: 10.1016/j.ijpharm.2020.120048] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 10/15/2020] [Accepted: 11/01/2020] [Indexed: 01/08/2023]
Abstract
The presence of a 'significant dead zone' in any continuous manufacturing equipment may affect the product quality and need to be investigated systematically. Dead zone will affect the residence time distribution (RTD) of continuous manufacturing and thus the mixing and product quality. Tablet press (feed frame) is one of unit operations that directly influence the critical quality attributes (CQA's). However, currently no systematic methods and tools are available to characterize and model the feed frame dead zone. In this manuscript, the RTD of the tablet press feed frame containing dead zone is investigated. Step-change experiments revealed that the feed frame could be expressed as a traditional continuous stirred tank model. The volume fractions of the dead zones are determined experimentally as well as using RTD model. In addition, an in-line NIR method for drug concentration monitoring inside the feed frame is also developed. The developed NIR calibration model enables to monitor the drug concentration precisely and detect the variation immediately with the probe positioned right above the left paddle. It is also found that the feed frame paddle speed slightly affects the predictive accuracy of NIR, while the die disc speed has no significant effect.
Collapse
Affiliation(s)
- Shinji Tanimura
- CMC R&D Center, Kyowa Kirin Co., Ltd., 1188 Shimotogari, Nagaizumi-cho, Sunto-gun, Shizuoka 411-8731 Japan
| | - Ravendra Singh
- Engineering Research Center for Structured Organic Particulate Systems (C-SOPS), Department of Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA.
| | - Andrés D Román-Ospino
- Engineering Research Center for Structured Organic Particulate Systems (C-SOPS), Department of Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Marianthi Ierapetritou
- Department of Chemical and Biomolecular Engineering, University of Delaware, DE 19716, USA.
| |
Collapse
|
6
|
Onffroy PR, Miu EV, Confer WJ, Darkes‐Burkey CM, Holler WC, Wakabayashi K. Residence Time Distribution and Specific Mechanical Energy in Solid‐State Shear Pulverization: Processing‐Structure‐Property Relationships in a Chilled Extruder. POLYM ENG SCI 2020. [DOI: 10.1002/pen.25305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Philip R. Onffroy
- Department of Chemical Engineering Bucknell University Lewisburg Pennsylvania 17837
| | - Evan V. Miu
- Department of Chemical Engineering Bucknell University Lewisburg Pennsylvania 17837
| | - William J. Confer
- Chemical and Petroleum Engineering Department University of Pittsburgh Pittsburgh Pennsylvania 15261
| | | | | | | |
Collapse
|
7
|
Conical twin-screw extrusion is an effective inactivation process for Salmonella in low-moisture foods at temperatures above 65 °C. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2019.108369] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
8
|
|
9
|
Hydrophobic/hydrophilic powders: Practical implications of screw element type on the reduction of fines in twin screw granulation. POWDER TECHNOL 2019. [DOI: 10.1016/j.powtec.2018.03.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
10
|
Faraji D, Sadighi S, Mazaheri H. Modeling and Evaluating Zeolite and Amorphous Based Catalysts in Vacuum Gas Oil Hydrocracking Process. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2017. [DOI: 10.1515/ijcre-2017-0030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Hydrocracking is a significant process in a refinery which is commonly used for converting heavy fractions such as vacuum gas oil (VGO) to the valuable products such as naphtha and diesel. In this research, VGO hydrocracking process was studied in a pilot scale plant in the presence of a zeolite and two amorphous based commercial catalysts called RK-NiY, RK-MNi and KF-101, respectively. In order to study the effect of support on the yield of the process, a discrete 4-lump kinetic model, including feed (vacuum gas oil and unconverted materials), distillate (diesel and kerosene), naphtha and gas was proposed for each catalyst. At first, each network had six reaction paths and twelve kinetic coefficients, and then by using the model reduction methodology, only four main routes for RK-MNi and RK-NiY, and three ones for KF-101 were designated. Results showed that the absolute average deviation (AAD%) of reduced models decreased from 5.11 %, 10.1 % and 21.8 % to 4.54 %, 8.9 % and 19.67 % for RK-MNi, KF-101 and RK-NiY, respectively. Moreover, it was confirmed that amorphous and zeolite catalysts could be selected for producing middle distillate and naphtha products, respectively.
Collapse
Affiliation(s)
- Davood Faraji
- Department of Chemical Engineering, Faculty of Engineering , Arak Branch, Islamic Azad University , Arak , Iran
- Hydrocracking Unit (HCU) of Imam Khomeini Shazand Refinery , Arak , Iran
| | - Sepehr Sadighi
- Catalysis Technologies Development Division , Research Institute of Petroleum Industry (RIPI) , Tehran , Iran
| | - Hossein Mazaheri
- Department of Chemical Engineering, Faculty of Engineering , Arak Branch, Islamic Azad University , Arak , Iran
| |
Collapse
|
11
|
Residence time distribution and flow pattern of reduced-gluten wheat-based formulations in a twin–screw extruder. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2017.01.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
12
|
Xu E, Wu Z, Li J, Pan X, Sun Y, Long J, Xu X, Jin Z, Jiao A. Residence Time Distribution for Evaluating Flow Patterns and Mixing Actions of Rice Extruded with Thermostable α-Amylase. FOOD BIOPROCESS TECH 2017. [DOI: 10.1007/s11947-017-1878-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
13
|
Alam MS, Kaur J, Khaira H, Gupta K. Extrusion and Extruded Products: Changes in Quality Attributes as Affected by Extrusion Process Parameters: A Review. Crit Rev Food Sci Nutr 2016; 56:445-75. [PMID: 25574813 DOI: 10.1080/10408398.2013.779568] [Citation(s) in RCA: 173] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Extrusion of foods is an emerging technology for the food industries to process and market a large number of products of varying size, shape, texture, and taste. Extrusion cooking technology has led to production of wide variety of products like pasta, breakfast cereals, bread crumbs, biscuits, crackers, croutons, baby foods, snack foods, confectionery items, chewing gum, texturized vegetable protein (TVP), modified starch, pet foods, dried soups, dry beverage mixes etc. The functional properties of extruded foods plays an important role for their acceptability which include water absorption, water solubility, oil absorption indexes, expansion index, bulk density and viscosity of the dough. The aim of this review is to give the detailed outlines about the potential of extrusion technology in development of different types of products and the role of extrusion-operating conditions and their effect on product development resulting in quality changes i.e physical, chemical, and nutritional, experienced during the extrusion process.
Collapse
Affiliation(s)
| | - Jasmeen Kaur
- a Department of Processing and Food Engineering , Punjab Agricultural University , Ludhiana , Punjab , India
| | - Harjot Khaira
- a Department of Processing and Food Engineering , Punjab Agricultural University , Ludhiana , Punjab , India
| | - Kalika Gupta
- a Department of Processing and Food Engineering , Punjab Agricultural University , Ludhiana , Punjab , India
| |
Collapse
|
14
|
|
15
|
Li S, Tian Y, Jones DS, Andrews GP. Optimising Drug Solubilisation in Amorphous Polymer Dispersions: Rational Selection of Hot-melt Extrusion Processing Parameters. AAPS PharmSciTech 2016; 17:200-13. [PMID: 26729536 DOI: 10.1208/s12249-015-0450-6] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 10/21/2015] [Indexed: 11/30/2022] Open
Abstract
The aim of this article was to construct a T-ϕ phase diagram for a model drug (FD) and amorphous polymer (Eudragit® EPO) and to use this information to understand the impact of how temperature-composition coordinates influenced the final properties of the extrudate. Defining process boundaries and understanding drug solubility in polymeric carriers is of utmost importance and will help in the successful manufacture of new delivery platforms for BCS class II drugs. Physically mixed felodipine (FD)-Eudragit(®) EPO (EPO) binary mixtures with pre-determined weight fractions were analysed using DSC to measure the endset of melting and glass transition temperature. Extrudates of 10 wt% FD-EPO were processed using temperatures (110°C, 126°C, 140°C and 150°C) selected from the temperature-composition (T-ϕ) phase diagrams and processing screw speed of 20, 100 and 200rpm. Extrudates were characterised using powder X-ray diffraction (PXRD), optical, polarised light and Raman microscopy. To ensure formation of a binary amorphous drug dispersion (ADD) at a specific composition, HME processing temperatures should at least be equal to, or exceed, the corresponding temperature value on the liquid-solid curve in a F-H T-ϕ phase diagram. If extruded between the spinodal and liquid-solid curve, the lack of thermodynamic forces to attain complete drug amorphisation may be compensated for through the use of an increased screw speed. Constructing F-H T-ϕ phase diagrams are valuable not only in the understanding drug-polymer miscibility behaviour but also in rationalising the selection of important processing parameters for HME to ensure miscibility of drug and polymer.
Collapse
|
16
|
Ruiz-Gutiérrez MG, Amaya-Guerra CA, Quintero-Ramos A, Pérez-Carrillo E, Ruiz-Anchondo TDJ, Báez-González JG, Meléndez-Pizarro CO. Effect of extrusion cooking on bioactive compounds in encapsulated red cactus pear powder. Molecules 2015; 20:8875-92. [PMID: 25993418 PMCID: PMC6272353 DOI: 10.3390/molecules20058875] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 04/30/2015] [Indexed: 11/16/2022] Open
Abstract
Red cactus pear has significant antioxidant activity and potential as a colorant in food, due to the presence of betalains. However, the betalains are highly thermolabile, and their application in thermal process, as extrusion cooking, should be evaluated. The aim of this study was to evaluate the effect of extrusion conditions on the chemical components of red cactus pear encapsulated powder. Cornstarch and encapsulated powder (2.5% w/w) were mixed and processed by extrusion at different barrel temperatures (80, 100, 120, 140 °C) and screw speeds (225, 275, 325 rpm) using a twin-screw extruder. Mean residence time (trm), color (L*, a*, b*), antioxidant activity, total polyphenol, betacyanin, and betaxanthin contents were determined on extrudates, and pigment degradation reaction rate constants (k) and activation energies (Ea) were calculated. Increases in barrel temperature and screw speed decreased the trm, and this was associated with better retentions of antioxidant activity, total polyphenol, betalain contents. The betacyanins k values ranged the -0.0188 to -0.0206/s and for betaxanthins ranged of -0.0122 to -0.0167/s, while Ea values were 1.5888 to 6.1815 kJ/mol, respectively. The bioactive compounds retention suggests that encapsulated powder can be used as pigments and to provide antioxidant properties to extruded products.
Collapse
Affiliation(s)
- Martha G Ruiz-Gutiérrez
- Departamento de Investigación y Posgrado, Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Circuito Universitario s/n Campus Universitario 2, Chihuahua 31125, Mexico.
| | - Carlos A Amaya-Guerra
- Departamento de Investigación y Posgrado, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, Ciudad Universitaria, San Nicolás de los Garza 66450, Mexico.
| | - Armando Quintero-Ramos
- Departamento de Investigación y Posgrado, Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Circuito Universitario s/n Campus Universitario 2, Chihuahua 31125, Mexico.
| | - Esther Pérez-Carrillo
- Centro de Biotecnología-FEMSA, Escuela de Ingenería y Ciencias, Tecnológico de Monterrey, Av. Eugenio Garza Sada 2501 Sur, Monterrey 64849, Mexico.
| | - Teresita de J Ruiz-Anchondo
- Facultad de Ciencias Agrotecnológicas, Universidad Autónoma de Chihuahua, Circuito Universitario s/n Campus Universitario 1, Chihuahua 31310, Mexico.
| | - Juan G Báez-González
- Departamento de Investigación y Posgrado, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, Ciudad Universitaria, San Nicolás de los Garza 66450, Mexico.
| | - Carmen O Meléndez-Pizarro
- Departamento de Investigación y Posgrado, Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Circuito Universitario s/n Campus Universitario 2, Chihuahua 31125, Mexico.
| |
Collapse
|
17
|
Conceptual framework for model-based analysis of residence time distribution in twin-screw granulation. Eur J Pharm Sci 2015; 71:25-34. [PMID: 25698071 DOI: 10.1016/j.ejps.2015.02.004] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 01/28/2015] [Accepted: 02/08/2015] [Indexed: 11/20/2022]
Abstract
Twin-screw granulation is a promising continuous alternative for traditional batchwise wet granulation processes. The twin-screw granulator (TSG) screws consist of transport and kneading element modules. Therefore, the granulation to a large extent is governed by the residence time distribution within each module where different granulation rate processes dominate over others. Currently, experimental data is used to determine the residence time distributions. In this study, a conceptual model based on classical chemical engineering methods is proposed to better understand and simulate the residence time distribution in a TSG. The experimental data were compared with the proposed most suitable conceptual model to estimate the parameters of the model and to analyse and predict the effects of changes in number of kneading discs and their stagger angle, screw speed and powder feed rate on residence time. The study established that the kneading block in the screw configuration acts as a plug-flow zone inside the granulator. Furthermore, it was found that a balance between the throughput force and conveying rate is required to obtain a good axial mixing inside the twin-screw granulator. Although the granulation behaviour is different for other excipients, the experimental data collection and modelling methods applied in this study are generic and can be adapted to other excipients.
Collapse
|
18
|
Kumar A, Jones DD, Meyer GE, Hanna MA. A Fuzzy Inference System (FIS) and Dimensional Analysis for Predicting Energy Consumption and Mean Residence Time in a Twin-Screw Extruder. J FOOD PROCESS ENG 2014. [DOI: 10.1111/jfpe.12137] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ajay Kumar
- Biosystems and Agricultural Engineering; Oklahoma State University; Stillwater OK
| | - David D. Jones
- Department of Biological Systems Engineering; University of Nebraska-Lincoln; Lincoln NE 68583-0730
| | - George E. Meyer
- Department of Biological Systems Engineering; University of Nebraska-Lincoln; Lincoln NE 68583-0730
| | - Milford A. Hanna
- Department of Biological Systems Engineering; University of Nebraska-Lincoln; Lincoln NE 68583-0730
- Industrial Agricultural Products Center; University of Nebraska-Lincoln; Lincoln NE 68583-0730
| |
Collapse
|
19
|
Mechanistic modeling of modular co-rotating twin-screw extruders. Int J Pharm 2014; 474:157-76. [PMID: 25102114 DOI: 10.1016/j.ijpharm.2014.08.005] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Accepted: 08/03/2014] [Indexed: 11/20/2022]
Abstract
In this study, we present a one-dimensional (1D) model of the metering zone of a modular, co-rotating twin-screw extruder for pharmaceutical hot melt extrusion (HME). The model accounts for filling ratio, pressure, melt temperature in screw channels and gaps, driving power, torque and the residence time distribution (RTD). It requires two empirical parameters for each screw element to be determined experimentally or numerically using computational fluid dynamics (CFD). The required Nusselt correlation for the heat transfer to the barrel was determined from experimental data. We present results for a fluid with a constant viscosity in comparison to literature data obtained from CFD simulations. Moreover, we show how to incorporate the rheology of a typical, non-Newtonian polymer melt, and present results in comparison to measurements. For both cases, we achieved excellent agreement. Furthermore, we present results for the RTD, based on experimental data from the literature, and found good agreement with simulations, in which the entire HME process was approximated with the metering model, assuming a constant viscosity for the polymer melt.
Collapse
|
20
|
Residence time distribution analysis and optimization of photocatalysis of phenazopyridine using immobilized TiO2 nanoparticles in a rectangular photoreactor. J IND ENG CHEM 2013. [DOI: 10.1016/j.jiec.2013.01.019] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
21
|
|
22
|
|
23
|
Hughey JR, DiNunzio JC, Bennett RC, Brough C, Miller DA, Ma H, Williams RO, McGinity JW. Dissolution enhancement of a drug exhibiting thermal and acidic decomposition characteristics by fusion processing: a comparative study of hot melt extrusion and KinetiSol dispersing. AAPS PharmSciTech 2010; 11:760-74. [PMID: 20443089 DOI: 10.1208/s12249-010-9431-y] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2010] [Accepted: 04/05/2010] [Indexed: 11/30/2022] Open
Abstract
In this study, hot melt extrusion (HME) and KinetiSol Dispersing (KSD) were utilized to prepare dissolution-enhanced solid dispersions of Roche Research Compound A (ROA), a BCS class II drug. Preformulation characterization studies showed that ROA was chemically unstable at elevated temperatures and acidic pH values. Eudragit L100-55 and AQOAT LF (HPMCAS) were evaluated as carrier polymers. Dispersions were characterized for ROA recovery, crystallinity, homogeneity, and non-sink dissolution. Eudragit L100-55 dispersions prepared by HME required the use of micronized ROA and reduced residence times in order to become substantially amorphous. Compositions containing HPMCAS were also prepared by HME, but an amorphous dispersion could not be obtained. All HME compositions contained ROA-related impurities. KSD was investigated as a method to reduce the decomposition of ROA while rendering compositions amorphous. Substantially amorphous, plasticizer free compositions were processed successfully by KSD with significantly higher ROA recovery values and amorphous character than those achieved by HME. A near-infrared chemical imaging analysis was conducted on the solid dispersions as a measure of homogeneity. A statistical analysis showed similar levels of homogeneity in compositions containing Eudragit L100-55, while differences were observed in those containing HMPCAS. Non-sink dissolution analysis of all compositions showed rapid supersaturation after pH adjustment to approximately two to three times the equilibrium solubility of ROA, which was maintained for at least 24 h. The results of the study demonstrated that KSD is an effective method of forming dissolution-enhanced amorphous solid solutions in cases where HME is not a feasible technique.
Collapse
|
24
|
|
25
|
Larochette M, Graebling D, Nasri D, Léonardi F. Optimization of the Polymer Foam Process by the Residence Time Distribution Approach. Ind Eng Chem Res 2009. [DOI: 10.1021/ie800836j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mathieu Larochette
- Université de Pau et des Pays de l’Adour, IPREM/EPCP UMR 5254, 2 Avenue Angot, 64053 Pau Cedex 9, France, and INRIA Bordeaux-Sud-Ouest—Équipe Projet Concha
| | - Didier Graebling
- Université de Pau et des Pays de l’Adour, IPREM/EPCP UMR 5254, 2 Avenue Angot, 64053 Pau Cedex 9, France, and INRIA Bordeaux-Sud-Ouest—Équipe Projet Concha
| | - Djamel Nasri
- Université de Pau et des Pays de l’Adour, IPREM/EPCP UMR 5254, 2 Avenue Angot, 64053 Pau Cedex 9, France, and INRIA Bordeaux-Sud-Ouest—Équipe Projet Concha
| | - Frédéric Léonardi
- Université de Pau et des Pays de l’Adour, IPREM/EPCP UMR 5254, 2 Avenue Angot, 64053 Pau Cedex 9, France, and INRIA Bordeaux-Sud-Ouest—Équipe Projet Concha
| |
Collapse
|