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Biodegradation Studies of Polyhydroxybutyrate and Polyhydroxybutyrate-co-Polyhydroxyvalerate Films in Soil.
Kim, Jihyeon; Gupta, Nevin S; Bezek, Lindsey B; Linn, Jacqueline; Bejagam, Karteek K; Banerjee, Shounak; Dumont, Joseph H; Nam, Sang Yong; Kang, Hyun Woo; Park, Chi Hoon; Pilania, Ghanshyam; Iverson, Carl N; Marrone, Babetta L; Lee, Kwan-Soo.
Afiliación
  • Kim J; Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • Gupta NS; Department of Materials Engineering and Convergence Technology, Gyeongsang National University, Jinju 52828, Republic of Korea.
  • Bezek LB; Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • Linn J; Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • Bejagam KK; Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • Banerjee S; Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • Dumont JH; Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • Nam SY; Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • Kang HW; Department of Materials Engineering and Convergence Technology, Gyeongsang National University, Jinju 52828, Republic of Korea.
  • Park CH; Department of Energy Engineering, Future Convergence Technology Research Institute, Gyeongsang National University, Jinju 52725, Republic of Korea.
  • Pilania G; Department of Energy Engineering, Future Convergence Technology Research Institute, Gyeongsang National University, Jinju 52725, Republic of Korea.
  • Iverson CN; Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • Marrone BL; General Electric Global Research Center, Niskayuna, NY 12309, USA.
  • Lee KS; Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
Int J Mol Sci ; 24(8)2023 Apr 21.
Article en En | MEDLINE | ID: mdl-37108799
ABSTRACT
Due to increased environmental pressures, significant research has focused on finding suitable biodegradable plastics to replace ubiquitous petrochemical-derived polymers. Polyhydroxyalkanoates (PHAs) are a class of polymers that can be synthesized by microorganisms and are biodegradable, making them suitable candidates. The present study looks at the degradation properties of two PHA polymers polyhydroxybutyrate (PHB) and polyhydroxybutyrate-co-polyhydroxyvalerate (PHBV; 8 wt.% valerate), in two different soil conditions soil fully saturated with water (100% relative humidity, RH) and soil with 40% RH. The degradation was evaluated by observing the changes in appearance, chemical signatures, mechanical properties, and molecular weight of samples. Both PHB and PHBV were degraded completely after two weeks in 100% RH soil conditions and showed significant reductions in mechanical properties after just three days. The samples in 40% RH soil, however, showed minimal changes in mechanical properties, melting temperatures/crystallinity, and molecular weight over six weeks. By observing the degradation behavior for different soil conditions, these results can pave the way for identifying situations where the current use of plastics can be replaced with biodegradable alternatives.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Polihidroxialcanoatos / Plásticos Biodegradables Tipo de estudio: Prognostic_studies Idioma: En Revista: Int J Mol Sci Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Polihidroxialcanoatos / Plásticos Biodegradables Tipo de estudio: Prognostic_studies Idioma: En Revista: Int J Mol Sci Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos