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Sharip NS, Tengku Yasim-Anuar TA, Husin H, Norrrahim MNF. Barley thermoplastic starch nanocomposite films reinforced with nanocellulose. PHYSICAL SCIENCES REVIEWS 2023. [DOI: 10.1515/psr-2022-0025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
Abstract
Despite being one of the starch producers, barley has yet to be widely studied for thermoplastic starch applications, including nanocellulose thermoplastic composites, due to its uses in the food and beverage industries. However, only 20% of barley is used in the malting industry to produce both alcoholic and non-alcoholic beverages, and 5% is used as an ingredient in a wide variety of foods. As the fourth most important cereal in the world after wheat, corn, and rice, barley can be considered an interesting biomass source to produce biodegradable thermoplastics, stemming from its starch constitution. Therefore, this review attempts to highlight the barley starch properties and its potential utilization for nanocellulose thermoplastic starch composites. Several studies involving barley-based starch in thermoplastic production and nanocellulose reinforcement for properties enhancement are also reviewed, particularly in the attempt to provide various options to reduce and replace the uses of harmful petroleum-based plastic.
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Affiliation(s)
- Nur Sharmila Sharip
- Research and Development Department , Nextgreen Pulp & Paper Sdn Bhd , Taman Tun Dr Ismail, 60000 Kuala Lumpur , Malaysia
| | | | - Hazwani Husin
- Research and Development Department , Nextgreen Pulp & Paper Sdn Bhd , Taman Tun Dr Ismail, 60000 Kuala Lumpur , Malaysia
| | - Mohd Nor Faiz Norrrahim
- Research Center for Chemical Defence , Universiti Pertahanan Nasional Malaysia , Kem Sungai Besi, 57000 Kuala Lumpur , Malaysia
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2
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Tafa KD, Satheesh N, Abera W. Mechanical properties of tef starch based edible films: Development and process optimization. Heliyon 2023; 9:e13160. [PMID: 36793972 PMCID: PMC9922979 DOI: 10.1016/j.heliyon.2023.e13160] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 01/18/2023] [Accepted: 01/19/2023] [Indexed: 01/25/2023] Open
Abstract
The non-biodegradable synthetic plastic is one of the greatest challenges facing the food packaging business since it seriously harms the environment. To solve this problem, non-biodegradable plastic may be disposed of more affordably and with less harm on the environment by using edible starch-based biodegradable film. Therefore, the present study was focused on the development and optimization of tef starch based edible films based on mechanical properties. In this study response surface methodology was employed by considering 3-5g of tef starch, 0.3-0.5% of agar and 0.3-0.5% of glycerol. The prepared film showed the tensile strength of 17.97-24.25 Mpa, elongation break of 1.21-2.03%, elastic modulus of 17.58-108.69 MPa, puncture force of 2.55-15.02 N, puncture formation of 9.59-14.95 mm. The findings showed that as glycerol concentrations in the film-forming solution increased, the prepared tef starch edible films' tensile strength, elastic modulus, and puncture force declined while their elongation at break and puncture deformation increased. Tef starch edible films' mechanical characteristics, including as tensile strength, elastic modulus, and puncture force, were increased by the increase of agar concentration. The optimized (from 5 gm tef starch, 0.4 g agar and 0.3% glycerol) tef starch edible film exhibited higher tensile strength, elastic modulus, and puncture force while lower elongation at break and puncture deformation. The composite edible film based tef starch with agar exhibited good mechanical properties and can be suggested for application in food industry as food packaging.
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Affiliation(s)
- Kenenisa Dekeba Tafa
- Department of Food Process Engineering, College of Engineering and Technology, Wolkite University, Wolkite, Ethiopia,Corresponding author.
| | - Neela Satheesh
- Faculty of Chemical and Food Engineering, Bahir Dar Institute of Technology, Bahir Dar, Ethiopia,Department of Food Nutrition and Dietetics, Faculty of Agriculture, Sri Sri University, Cuttack, Odisha, India
| | - Worku Abera
- Department of Food Process Engineering, College of Engineering and Technology, Wolkite University, Wolkite, Ethiopia
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3
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Fričová O, Hutníková M. Changes in molecular mobility of sorbitol plasticized starch during aging. J Appl Polym Sci 2022. [DOI: 10.1002/app.52948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ol'ga Fričová
- Faculty of Electrical Engineering and Informatics Technical University of Košice Košice Slovakia
| | - Mária Hutníková
- Faculty of Electrical Engineering and Informatics Technical University of Košice Košice Slovakia
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Mechanical Behavior of Thermoplastic Starch: Rationale for the Temperature-Relative Humidity Equivalence. Polymers (Basel) 2022; 14:polym14132531. [PMID: 35808576 PMCID: PMC9269158 DOI: 10.3390/polym14132531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/17/2022] [Accepted: 06/17/2022] [Indexed: 12/10/2022] Open
Abstract
This paper aimed at understanding and rationalizing the influence of both temperature and relative humidity on the mechanical behavior of thermoplastic starch (TPS). DMA experiments revealed that water molecules impact the crosslinking network by reducing the intermolecular hydrogen bond density, resulting in a less dense entanglement network. In addition, the in-situ X-ray characterization during hydration of starch revealed structural changes, which were ascribed to conformational changes in the starch chain, due to their interaction with the uptake water molecules. Finally, the study of TPS uniaxially stretched at different temperatures and humidity showed that the mechanical behavior of TPS could be rationalized by considering the ΔT parameter, which corresponds to the temperature difference between the drawing temperature and the glass transition temperature of TPS.
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Improving Functional Properties of Cassava Starch-Based Films by Incorporating Xanthan, Gellan, or Pullulan Gums. INT J POLYM SCI 2019. [DOI: 10.1155/2019/5367164] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
The effect of the partial substitution of cassava starch in edible films for 10 and 20 wt% of gellan, xanthan, or pullulan gums was analysed in films obtained by casting. The tensile properties, barrier capacity to water vapour, and oxygen and water sorption isotherms of the samples were analysed. The blend of starch with gellan gum was effective to reduce the moisture sorption capacity of starch films while reducing water vapour permeability, enhancing the film strength and resistance to break and preserving films against starch retrogradation throughout the storage time. Xanthan gum improved the tensile behaviour of the starch films, but did not reduce their water sorption capacity and water vapour permeability. Pullulan did not notably improve the functional properties of the starch films. Gellan gum at 10 and 20 wt% in the blend could be used to obtain starch films with more adequate properties for food packaging purposes.
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Chandra Mohan C, Harini K, Karthikeyan S, Sudharsan K, Sukumar M. Effect of film constituents and different processing conditions on the properties of starch based thermoplastic films. Int J Biol Macromol 2018; 120:2007-2016. [DOI: 10.1016/j.ijbiomac.2018.09.161] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 09/04/2018] [Accepted: 09/25/2018] [Indexed: 10/28/2022]
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7
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Ozturk OK, Takhar PS. Water transport in starchy foods: Experimental and mathematical aspects. Trends Food Sci Technol 2018. [DOI: 10.1016/j.tifs.2018.05.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Zhu F. Structures, properties, modifications, and uses of oat starch. Food Chem 2017; 229:329-340. [DOI: 10.1016/j.foodchem.2017.02.064] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 02/04/2017] [Accepted: 02/13/2017] [Indexed: 01/21/2023]
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9
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Rheological characterization of solutions and thin films made from amylose-hexadecylammonium chloride inclusion complexes and polyvinyl alcohol. Carbohydr Polym 2017; 161:140-148. [DOI: 10.1016/j.carbpol.2017.01.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 01/03/2017] [Accepted: 01/04/2017] [Indexed: 11/22/2022]
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10
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Different characteristic effects of ageing on starch-based films plasticised by 1-ethyl-3-methylimidazolium acetate and by glycerol. Carbohydr Polym 2016; 146:67-79. [DOI: 10.1016/j.carbpol.2016.03.056] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 03/18/2016] [Accepted: 03/19/2016] [Indexed: 11/20/2022]
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11
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Seligra PG, Medina Jaramillo C, Famá L, Goyanes S. Biodegradable and non-retrogradable eco-films based on starch–glycerol with citric acid as crosslinking agent. Carbohydr Polym 2016; 138:66-74. [DOI: 10.1016/j.carbpol.2015.11.041] [Citation(s) in RCA: 171] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 11/16/2015] [Accepted: 11/17/2015] [Indexed: 10/25/2022]
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12
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Cano AI, Cháfer M, Chiralt A, González-Martínez C. Physical and microstructural properties of biodegradable films based on pea starch and PVA. J FOOD ENG 2015. [DOI: 10.1016/j.jfoodeng.2015.06.003] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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Mikus PY, Alix S, Soulestin J, Lacrampe M, Krawczak P, Coqueret X, Dole P. Deformation mechanisms of plasticized starch materials. Carbohydr Polym 2014; 114:450-457. [DOI: 10.1016/j.carbpol.2014.06.087] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 06/13/2014] [Accepted: 06/24/2014] [Indexed: 10/24/2022]
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14
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Cano A, Jiménez A, Cháfer M, Gónzalez C, Chiralt A. Effect of amylose:amylopectin ratio and rice bran addition on starch films properties. Carbohydr Polym 2014; 111:543-55. [PMID: 25037386 DOI: 10.1016/j.carbpol.2014.04.075] [Citation(s) in RCA: 105] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Revised: 03/19/2014] [Accepted: 04/12/2014] [Indexed: 11/22/2022]
Abstract
The influence of the amylose:amylopectin ratio on the properties of pea, potato and cassava starch films and the effect of the incorporation of rice bran of two different particle sizes were studied. The structural, mechanical, optical and barrier properties of the films were analyzed after 1 and 5 weeks. The high content of amylose gave rise to stiffer, more resistant to fracture, but less stretchable films, with lower oxygen permeability and greater water binding capacity. Although no changes in the water vapour permeability values of the films were observed during storage, their oxygen permeability decreased. Throughout storage, films became stiffer, more resistant to break, but less stretchable. Rice bran with the smallest particles improved the elastic modulus of the films, especially in high amylose content films, but reduced the film stretchability and its barrier properties, due to the enhancement of the water binding capacity and the introduction of discontinuities.
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Affiliation(s)
- Amalia Cano
- Instituto de Ingeniería de Alimentos para el Desarrollo, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - Alberto Jiménez
- Instituto de Ingeniería de Alimentos para el Desarrollo, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain.
| | - Maite Cháfer
- Instituto de Ingeniería de Alimentos para el Desarrollo, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - Chelo Gónzalez
- Instituto de Ingeniería de Alimentos para el Desarrollo, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - Amparo Chiralt
- Instituto de Ingeniería de Alimentos para el Desarrollo, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
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15
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Vartiainen J, Vähä-Nissi M, Harlin A. Biopolymer Films and Coatings in Packaging Applications—A Review of Recent Developments. ACTA ACUST UNITED AC 2014. [DOI: 10.4236/msa.2014.510072] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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17
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Matet M, Heuzey MC, Pollet E, Ajji A, Avérous L. Innovative thermoplastic chitosan obtained by thermo-mechanical mixing with polyol plasticizers. Carbohydr Polym 2013; 95:241-51. [PMID: 23618266 DOI: 10.1016/j.carbpol.2013.02.052] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Accepted: 02/26/2013] [Indexed: 11/30/2022]
Abstract
Chitosan shows a degradation temperature lower than its melting point, which prevents its development in several applications. One way to overcome this issue is the plasticization of the carbohydrate. In this work plasticized chitosan was prepared by a thermo-mechanical kneading approach. The effects of different non-volatile polyol plasticizers (glycerol, xylitol and sorbitol) were investigated. The microstructure and morphology were determined using FTIR, XRD, TEM and SEM in order to understand the plasticization mechanism. Sorbitol, which is the highest molecular weight polyol used, resulted in plasticized chitosan with the highest thermal, mechanical and rheological properties. On the other hand, the sample plasticized with glycerol, the lowest molecular weight polyol, had the most important amorphous phase content and the lowest thermal, mechanical and rheological properties. Also, when the polyol content increased in the formulation, the plasticized chitosan was more amorphous and consequently its processability easier, while its properties decreased.
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Affiliation(s)
- Marie Matet
- CREPEC, Department of Chemical Engineering, Polytechnique Montreal, P.O. Box 6079, Station Centre-Ville, Montreal, Quebec, Canada H3C 3A7
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Mohammadi Nafchi A, Moradpour M, Saeidi M, Alias AK. Thermoplastic starches: Properties, challenges, and prospects. STARCH-STARKE 2013. [DOI: 10.1002/star.201200201] [Citation(s) in RCA: 227] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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19
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Jiménez A, Fabra MJ, Talens P, Chiralt A. Phase transitions in starch based films containing fatty acids. Effect on water sorption and mechanical behaviour. Food Hydrocoll 2013. [DOI: 10.1016/j.foodhyd.2012.07.007] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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20
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Starch films from a novel (Pachyrhizus ahipa) and conventional sources: Development and characterization. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012; 32:1931-1940. [DOI: 10.1016/j.msec.2012.05.035] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2011] [Revised: 04/27/2012] [Accepted: 05/22/2012] [Indexed: 11/20/2022]
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21
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Effects of chemical modification on the structure and mechanical properties of starch-based biofilms. MONATSHEFTE FUR CHEMIE 2011. [DOI: 10.1007/s00706-011-0659-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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22
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Liu D, Chang PR, Deng S, Wang C, Zhang B, Tian Y, Huang S, Yao J, Ma X. Fabrication and characterization of zirconium hydroxide-carboxymethyl cellulose sodium/plasticized Trichosanthes Kirilowii starch nanocomposites. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2011.06.088] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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23
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Stoichiometric interpretation of thermoplastic starch water sorption and relation to mechanical behavior. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2010.12.024] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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24
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Rahman W, Sin LT, Rahmat A, Samad A. Thermal behaviour and interactions of cassava starch filled with glycerol plasticized polyvinyl alcohol blends. Carbohydr Polym 2010. [DOI: 10.1016/j.carbpol.2010.03.052] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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25
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Zamudio-Flores PB, Torres AV, Salgado-Delgado R, Bello-Pérez LA. Influence of the oxidation and acetylation of banana starch on the mechanical and water barrier properties of modified starch and modified starch/chitosan blend films. J Appl Polym Sci 2010. [DOI: 10.1002/app.31047] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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26
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Pushpadass HA, Hanna MA. Age-Induced Changes in the Microstructure and Selected Properties of Extruded Starch Films Plasticized with Glycerol and Stearic Acid. Ind Eng Chem Res 2009. [DOI: 10.1021/ie801922z] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Heartwin A. Pushpadass
- Industrial Agricultural Products Center, Department of Biological Systems Engineering, L.W. Chase Hall, University of Nebraska—Lincoln, Nebraska
| | - Milford A. Hanna
- Industrial Agricultural Products Center, Department of Biological Systems Engineering, L.W. Chase Hall, University of Nebraska—Lincoln, Nebraska
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27
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Galdeano M, Grossmann M, Mali S, Bello-Perez L, Garcia M, Zamudio-Flores P. Effects of production process and plasticizers on stability of films and sheets of oat starch. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2009. [DOI: 10.1016/j.msec.2008.08.031] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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28
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Effects of plasticizers on the properties of oat starch films. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2009. [DOI: 10.1016/j.msec.2008.09.034] [Citation(s) in RCA: 117] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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29
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DeLeo C, Goetz J, Young B, Velankar SS. Renewable elastomers based on blends of maleated polypropylene and plasticized starch. J Appl Polym Sci 2009. [DOI: 10.1002/app.31662] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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30
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Pushpadass HA, Marx DB, Wehling RL, Hanna MA. Extrusion and Characterization of Starch Films. Cereal Chem 2009. [DOI: 10.1094/cchem-86-1-0044] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
| | - David B. Marx
- Department of Statistics, University of Nebraska-Lincoln
| | - Randy L. Wehling
- Department of Food Science and Technology, University of Nebraska-Lincoln
| | - Milford A. Hanna
- Department of Biological Systems Engineering, University of Nebraska-Lincoln
- Corresponding author. Phone: +1-402-472-1634. Fax: +1-402-472-6338. E-mail:
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31
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Mathew AP, Thielemans W, Dufresne A. Mechanical properties of nanocomposites from sorbitol plasticized starch and tunicin whiskers. J Appl Polym Sci 2008. [DOI: 10.1002/app.28623] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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32
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Famá L, Goyanes S, Gerschenson L. Influence of storage time at room temperature on the physicochemical properties of cassava starch films. Carbohydr Polym 2007. [DOI: 10.1016/j.carbpol.2007.04.003] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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33
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Thirathumthavorn D, Charoenrein S. Aging Effects on Sorbitol- and Non-Crystallizing Sorbitol-Plasticized Tapioca Starch Films. STARCH-STARKE 2007. [DOI: 10.1002/star.200700626] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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34
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Alves VD, Mali S, Beléia A, Grossmann MVE. Effect of glycerol and amylose enrichment on cassava starch film properties. J FOOD ENG 2007. [DOI: 10.1016/j.jfoodeng.2005.12.007] [Citation(s) in RCA: 162] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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35
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Shi R, Ding T, Liu Q, Han Y, Zhang L, Chen D, Tian W. In vitro degradation and swelling behaviour of rubbery thermoplastic starch in simulated body and simulated saliva fluid and effects of the degradation products on cells. Polym Degrad Stab 2006. [DOI: 10.1016/j.polymdegradstab.2006.06.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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36
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Mali S, Grossmann MVE, García MA, Martino MN, Zaritzky NE. Effects of controlled storage on thermal, mechanical and barrier properties of plasticized films from different starch sources. J FOOD ENG 2006. [DOI: 10.1016/j.jfoodeng.2005.04.031] [Citation(s) in RCA: 258] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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37
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38
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Shi R, Liu Q, Ding T, Han Y, Zhang L, Chen D, Tian W. Ageing of soft thermoplastic starch with high glycerol content. J Appl Polym Sci 2006. [DOI: 10.1002/app.25193] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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39
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Thiré RM, Andrade CT, Simão RA. Effect of aging on the microstructure of plasticized cornstarch films. POLIMEROS 2005. [DOI: 10.1590/s0104-14282005000200013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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40
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Follain N, Joly C, Dole P, Bliard C. Mechanical properties of starch-based materials. I. Short review and complementary experimental analysis. J Appl Polym Sci 2005. [DOI: 10.1002/app.21664] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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41
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Smits A, Kruiskamp P, van Soest J, Vliegenthart J. Interaction between dry starch and plasticisers glycerol or ethylene glycol, measured by differential scanning calorimetry and solid state NMR spectroscopy. Carbohydr Polym 2003. [DOI: 10.1016/s0144-8617(03)00119-x] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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42
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Krogars K, Heinämäki J, Karjalainen M, Niskanen A, Leskelä M, Yliruusi J. Enhanced stability of rubbery amylose-rich maize starch films plasticized with a combination of sorbitol and glycerol. Int J Pharm 2003; 251:205-8. [PMID: 12527190 DOI: 10.1016/s0378-5173(02)00585-9] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Well known aging problems with rubbery starch films are the migration of plasticizer and increased crystallinity leading to embrittlement. The effects of a combination of sorbitol and glycerol used as plasticizers on mechanical, moisture permeability and solid-state properties of rubbery amylose maize starch (Hylon VII) films were studied. The films were prepared by casting and were exposed to conditions of 25 degrees C/60% relative humidity (RH) and 40 degrees C/75% RH for 9 months. The starch films plasticized with a combination of sorbitol and glycerol (1:1) at equal amount to the polymer weight, were shown to be the most stable alternative of the studied films during the 9 months storage period. The water vapor transmission (WVTR) of the films did not change during the period of storage and neither did the elongation at break, but the tensile strength increased. X-ray diffraction (XRD) results showed that during storage no crystallization had occurred. The combination of sorbitol and glycerol prevented the migration of the plasticizer molecules out of the film.
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Affiliation(s)
- K Krogars
- Department of Pharmacy, University of Helsinki, P O Box 56, FIN-00014, Helsinki, Finland.
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Myllärinen P, Partanen R, Seppälä J, Forssell P. Effect of glycerol on behaviour of amylose and amylopectin films. Carbohydr Polym 2002. [DOI: 10.1016/s0144-8617(02)00042-5] [Citation(s) in RCA: 194] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Crosslinking of dienic elastomers resulting from ageing: X-ray diffraction and refractometry measurements. Polym Degrad Stab 2002. [DOI: 10.1016/s0141-3910(02)00048-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Myllärinen P, Buleon A, Lahtinen R, Forssell P. The crystallinity of amylose and amylopectin films. Carbohydr Polym 2002. [DOI: 10.1016/s0144-8617(01)00208-9] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Moates G, Noel T, Parker R, Ring S. Dynamic mechanical and dielectric characterisation of amylose–glycerol films. Carbohydr Polym 2001. [DOI: 10.1016/s0144-8617(00)00224-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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