Biodegradability of poly (lactic acid), preparation and characterization of PLA/gum Arabic blends

John M. Onyari; Francis Mulaa; Joshua Muia; Paul Shiundu

doi:10.1007/s10924-008-0096-5

Biodegradability of poly (lactic acid), preparation and characterization of PLA/gum Arabic blends

John M. Onyari, Francis Mulaa, Joshua Muia, Paul Shiundu

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

In this study, the biodegradation of PLA films using microorganisms from Lake Bogoria (Kenya) were investigated. The biodegradation tests done using certain strains of thermophilic bacteria showed faster biodegradation rates and demonstrated temperature dependency. The biodegradation of the PLA films was studied using Gel Permeation Chromatography (GPC) and light microscopy. The biodegradation of PLA was demonstrated by decrease in molecular weight. The preparation and characterization of PLA/Gum Arabic blends were also investigated using DSC, TGA, TMA and NMR. In summary, the results obtained in this research show that PLA films undergo fast biodegradation using thermophiles isolated from Lake Bogoria. The PLA/GA blends studies show it is possible to prepare films of varying hydrophobic-hydrophilic properties for various applications.

Original language	English
Pages (from-to)	205-212
Number of pages	8
Journal	Journal of Polymers and the Environment
Volume	16
Issue number	3
DOIs	https://doi.org/10.1007/s10924-008-0096-5
State	Published - Jul 2008
Externally published	Yes

Keywords

Biodegradation
Blends
Characterization
Gum Arabic
Polylactic acid

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10.1007/s10924-008-0096-5

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title = "Biodegradability of poly (lactic acid), preparation and characterization of PLA/gum Arabic blends",

abstract = "In this study, the biodegradation of PLA films using microorganisms from Lake Bogoria (Kenya) were investigated. The biodegradation tests done using certain strains of thermophilic bacteria showed faster biodegradation rates and demonstrated temperature dependency. The biodegradation of the PLA films was studied using Gel Permeation Chromatography (GPC) and light microscopy. The biodegradation of PLA was demonstrated by decrease in molecular weight. The preparation and characterization of PLA/Gum Arabic blends were also investigated using DSC, TGA, TMA and NMR. In summary, the results obtained in this research show that PLA films undergo fast biodegradation using thermophiles isolated from Lake Bogoria. The PLA/GA blends studies show it is possible to prepare films of varying hydrophobic-hydrophilic properties for various applications.",

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AU - Onyari, John M.

AU - Mulaa, Francis

AU - Muia, Joshua

AU - Shiundu, Paul

PY - 2008/7

Y1 - 2008/7

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AB - In this study, the biodegradation of PLA films using microorganisms from Lake Bogoria (Kenya) were investigated. The biodegradation tests done using certain strains of thermophilic bacteria showed faster biodegradation rates and demonstrated temperature dependency. The biodegradation of the PLA films was studied using Gel Permeation Chromatography (GPC) and light microscopy. The biodegradation of PLA was demonstrated by decrease in molecular weight. The preparation and characterization of PLA/Gum Arabic blends were also investigated using DSC, TGA, TMA and NMR. In summary, the results obtained in this research show that PLA films undergo fast biodegradation using thermophiles isolated from Lake Bogoria. The PLA/GA blends studies show it is possible to prepare films of varying hydrophobic-hydrophilic properties for various applications.

KW - Biodegradation

KW - Blends

KW - Characterization

KW - Gum Arabic

KW - Polylactic acid

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JO - Journal of Polymers and the Environment

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Biodegradability of poly (lactic acid), preparation and characterization of PLA/gum Arabic blends

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Keywords

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