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Biodegradation Studies of Polyhydroxybutyrate and Polyhydroxybutyrate-co-Polyhydroxyvalerate Films in Soil
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 the...
Autores principales: | , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10146786/ https://www.ncbi.nlm.nih.gov/pubmed/37108799 http://dx.doi.org/10.3390/ijms24087638 |
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author | 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 |
author_facet | 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 |
author_sort | Kim, Jihyeon |
collection | PubMed |
description | 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. |
format | Online Article Text |
id | pubmed-10146786 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-101467862023-04-29 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 Int J Mol Sci Article 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. MDPI 2023-04-21 /pmc/articles/PMC10146786/ /pubmed/37108799 http://dx.doi.org/10.3390/ijms24087638 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article 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 Biodegradation Studies of Polyhydroxybutyrate and Polyhydroxybutyrate-co-Polyhydroxyvalerate Films in Soil |
title | Biodegradation Studies of Polyhydroxybutyrate and Polyhydroxybutyrate-co-Polyhydroxyvalerate Films in Soil |
title_full | Biodegradation Studies of Polyhydroxybutyrate and Polyhydroxybutyrate-co-Polyhydroxyvalerate Films in Soil |
title_fullStr | Biodegradation Studies of Polyhydroxybutyrate and Polyhydroxybutyrate-co-Polyhydroxyvalerate Films in Soil |
title_full_unstemmed | Biodegradation Studies of Polyhydroxybutyrate and Polyhydroxybutyrate-co-Polyhydroxyvalerate Films in Soil |
title_short | Biodegradation Studies of Polyhydroxybutyrate and Polyhydroxybutyrate-co-Polyhydroxyvalerate Films in Soil |
title_sort | biodegradation studies of polyhydroxybutyrate and polyhydroxybutyrate-co-polyhydroxyvalerate films in soil |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10146786/ https://www.ncbi.nlm.nih.gov/pubmed/37108799 http://dx.doi.org/10.3390/ijms24087638 |
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