Biodegradation of low-density polyethylene (LDPE) by isolated fungi in solid waste medium

Sahebnazar, Zahra; Abbas, Shojaosadati Seyed; Mohammadtaheri, Mahsa; Nosrati, Masoud

doi:10.1016/j.wasman.2009.09.027

Cited by 135 publications

(62 citation statements)

References 20 publications

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“…Then the microbes left in solution was platted on solid basal media. Different colonies was picked and platted on other petridish to form isolated colonies which was further be used for degradation of LDPE (Zahra et al, 2010) …”

Section: Isolation Of Microbesmentioning

confidence: 99%

Biodegradation of LDPE with Mixed Consortium in presence of Super Paramagnetic Iron Oxide Nanoparticle (SPION) as the Enhancer for Biodegradation by Accelerating Growth Profiling of Microbes

2017

Int. J. Adv. Res. Biol. Sci

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Low density polyethylene (plastics) is used in different sectors of applications like building materials, packaging, consumer products and much more. Due to wide range of application, plastics are accumulating in the environment and harm the flora and fauna. LDPE-biodegradation especially by making microbial consortium will be a good choice. Super paramagnetic iron oxide nanoparticle (SPION) has varied potential applications. Studies with SPION nanoparticles have shown their ability in enhancement of polymer degradation due to accelerating growth profiling of microbes. Super paramagnetic iron oxide nanoparticles (SPION) with size ranging 10.6 nm were used and study the degradation potential of microbes. There are three consortium were used and the effect of SPION nanoparticle different on each consortium. Mixed consortium of isolated bacterial and fungal strains shows the higher degradation percentage of LDPE. Degraded products are recovered and tested by FT-IR spectrophotometer. The FT-IR spectra of LDPE have chemical bond shifting that conform degradation take place. SPION improved the exponential phase durability. SPION influence the growth profiles of LDPE degrading microorganisms and consortium to augment the biodegradation rate. The research article primarily focuses on the biodegradation where SPION acted as enhancers of biodegradation. The significance of microbial-nanoparticle interactions which can dramatically influences LDPEbiodegradation.

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Section: Isolation Of Microbesmentioning

confidence: 99%

Biodegradation of LDPE with Mixed Consortium in presence of Super Paramagnetic Iron Oxide Nanoparticle (SPION) as the Enhancer for Biodegradation by Accelerating Growth Profiling of Microbes

2017

Int. J. Adv. Res. Biol. Sci

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“…Several producers have attempted to make composite products with less water to be used in the indoor environment to minimize the risk of fungi . In addition, it is an unavoidable fact that this wood material has a level of humidity suitable for fungal attack …”

Section: Introductionmentioning

confidence: 99%

“…6 In addition, it is an unavoidable fact that this wood material has a level of humidity suitable for fungal attack. [7][8][9][10][11] Nowadays, studies on modifying wood material with harmless methods have proliferated. One of the studies developed in this area is the modification of wood material by heat treatment method.…”

Section: Introductionmentioning

confidence: 99%

Surface characterization of weathered and heat‐treated wood‐based composites reinforced by styrene maleic anhydride

Zor

Can

Gardner

2019

Color Research & Application

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The aim of this study was to investigate the effect of heat‐treated lignocellulosic filler on the surface characteristics and decay resistance of the wood flour/styrene maleic anhydride (SMA) composites. In this study, heat treatment was conducted at 212°C for 8 hours. Test specimens were prepared by injection molding at 220°C. Weathering tests were performed by cycles of UV‐light irradiation for 8 hours, water spray for 15 minutes, and then conditioning for 3.45 hours in an accelerated weathering test cycle chamber. Heat‐treated wood flour/SMA composites were evaluated for color changes, and attenuated total reflectance Fourier transform infrared (FTIR) spectroscopy was used to analyze chemical changes on the sample surfaces. The wood decay tests were performed of white rot fungus, Trametes versicolor (L.: Fr.) Pilat was based on mini‐block specimens on 48% malt extract agar in petri dishes. The study showed that color changes occurred when heat‐treated filler rate is increased in this material. Therefore, materials in 10% filler rate show lower color changes than other variation. As a result of the FTIR analysis, the addition of wood filler into the SMA causes changes in the chemical structure. In addition, the increase in wood filler reduced the resistance to weathering. Decay results showed that thermally modified wood has lower mass loss caused by fungal attack than untreated wood material. The weight loss decreases with the increase in wood flour rate expect 10%T and 10%UT in all composites.

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“…In its natural form polyethylene is not biodegradable. Accumulation of polyethylene‐based plastic materials in the environment at is steadily increasing and has reached ∼25 million tons per year . In 2012, 280 million tonnes of plastic was produced globally.…”

Section: Introductionmentioning

confidence: 99%

Microbial degradation of low density polyethylene

Abraham

Ghosh

Mukherjee

et al. 2016

Env Prog and Sustain Energy

106

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Low‐density polyethylene (LDPE) is potential source of environmental pollution. In this study, biodegradation of LDPE was achieved by employing fungus and actinobacteria isolated from waste dumping site. Among all the isolates, two potential strains were obtained through enrichment technique. Based on 18S rRNA and 16S rRNA analyses the isolated strains were identified as Aspergillus nomius and Streptomyces sp., respectively. The biodegradation of LDPE was determined by evaluating weight loss and morphological changes of the LDPE samples. The isolated strains; Aspergillus nomius had the capacity to degrade 4.9% and Streptomyces sp. showed 5.2% of weight loss of LDPE films respectively. Weight loss of LDPE film after inoculation of isolates in degradation medium indicated that it was capable of using polyethylene as carbon and energy source. CO2 evolution was checked after degradation of polyethylene pieces, the level of CO2 reached 2.85 g L−1 in the presence of Aspergillus nomius and Streptomyces sp. produced 4.27 g L−1. Sophisticated instrumentation was used like atomic force microscopy, Fourier transform infra‐red spectroscopy (FTIR). The breakdown products of the LDPE film after exposure to the isolates was recorded employing GCMS. FTIR spectrum of LDPE film confirmed changes in the presence of chemical groups like amine, alkanes, phenols, and alcohol after degradation of LDPE films by Aspergillus nomius and Streptomyces sp. and the most prominent structural changes of the spectrum were observed in the LDPE sample after 90 days of degradation. The results affirmed the isolates were capable of degrading LPDE films efficiently. © 2016 American Institute of Chemical Engineers Environ Prog, 36: 147–154, 2017

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Biodegradation of low-density polyethylene (LDPE) by isolated fungi in solid waste medium

Cited by 135 publications

References 20 publications

Biodegradation of LDPE with Mixed Consortium in presence of Super Paramagnetic Iron Oxide Nanoparticle (SPION) as the Enhancer for Biodegradation by Accelerating Growth Profiling of Microbes

Biodegradation of LDPE with Mixed Consortium in presence of Super Paramagnetic Iron Oxide Nanoparticle (SPION) as the Enhancer for Biodegradation by Accelerating Growth Profiling of Microbes

Surface characterization of weathered and heat‐treated wood‐based composites reinforced by styrene maleic anhydride

Microbial degradation of low density polyethylene

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