An approach to low-density polyethylene biodegradation by Bacillus amyloliquefaciens

Das, Merina Paul; Kumar, S. Dinesh

doi:10.1007/s13205-014-0205-1

Cited by 167 publications

(113 citation statements)

References 13 publications

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“…The strong absorption peaks at 719 and 1472 cm -1 became weaker after fungal treatment whereas peaks at 2919 and 2850 cm -1 became intensified in the treated sample than the control one. The change in the peak values of almost all functional groups confirming the configurational change on polymer surface (Das and Kumar 2015;Gilan et al 2004;Drímal et al 2007;Hadad et al 2005;Arboleda et al 2004). …”

Section: Ftirmentioning

confidence: 71%

“…The reduction in pH not only affirms the consumption of the polyethylene film as their sole carbon source (Duddu and Guntuku 2015;Das and Kumar 2015;Arutchelvi et al 2008). Microorganisms secrete variety of intra and extracellular enzymes into the media which might The dry weight of LDPE films were measured at different time points during the course of incubation.…”

Section: Ph Change In Biodegradation Processmentioning

confidence: 85%

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Biodegradation of thermally treated low density polyethylene by fungus Rhizopus oryzae NS 5

et al. 2017

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Polythene is considered as one of the important object used in daily life. Being versatile in nature and resistant to microbial attack, they effectively cause environmental pollution. In the present study, biodegradation of low-density polyethylene (LDPE) have been performed using fungal lab isolate Rhizopus oryzae NS5. Lab isolate fungal strain capable of adhering to LDPE surface was used for the biodegradation of LDPE. This strain was identified as Rhizopus oryzae NS5 (Accession No. KT160362). Fungal growth was observed on the surface of the polyethylene when cultured in potato dextrose broth at 30°C and 120 rpm, for 1 month. LDPE film was characterized before and after incubation by Fourier transform infrared spectroscopy, scanning electron microscopy, atomic force microscopy and universal tensile machine. About 8.4 ± 3% decrease (gravimetrically) in weight and 60% reduction in tensile strength of polyethylene was observed. Scanning electron microscope analysis showed hyphal penetration and degradation on the surface of polyethylene. Atomic force microscope analysis showed increased surface roughness after treatment with fungal isolate. A thick network of fungal hyphae forming a biofilm was also observed on the surface of the polyethylene pieces. Present study shows the potential of Rhizopus oryzae NS5 in polyethylene degradation in eco friendly and sustainable manner.

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Section: Ftirmentioning

confidence: 71%

Section: Ph Change In Biodegradation Processmentioning

confidence: 85%

Biodegradation of thermally treated low density polyethylene by fungus Rhizopus oryzae NS 5

et al. 2017

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“…Similarly, Ambika et al (2015) identified a marine bacterial strain as Achromobacter denitrificans S1 for LDPE degradation that was determined by NMR, XRD, TGA and GCMS analysis. Das and Kumar (2015) investigated a sample of municipal solid soil for distribution of polymer degrading microorganisms and isolated Bacillus amyloliquefaciens BSM-1 and B. amyloliquefaciens BSM-2. Das and Kumar (2015) found enhanced biodegradation with strain B. amyloliquefaciens BSM-2 in comparison to B. amyloliquefaciens BSM-1.…”

Section: Polyethylenementioning

confidence: 99%

“…Das and Kumar (2015) investigated a sample of municipal solid soil for distribution of polymer degrading microorganisms and isolated Bacillus amyloliquefaciens BSM-1 and B. amyloliquefaciens BSM-2. Das and Kumar (2015) found enhanced biodegradation with strain B. amyloliquefaciens BSM-2 in comparison to B. amyloliquefaciens BSM-1. The rate and efficiency of polymer degradation were determined by pH alteration in media, CO 2 evolution, weight loss, SEM and FT-IR analysis.…”

Section: Polyethylenementioning

confidence: 99%

Review on the current status of polymer degradation: a microbial approach

Pathak

Bithel

2017

Bioresour. Bioprocess.

596

241

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Inertness and the indiscriminate use of synthetic polymers leading to increased land and water pollution are of great concern. Plastic is the most useful synthetic polymer, employed in wide range of applications viz. the packaging industries, agriculture, household practices, etc. Unpredicted use of synthetic polymers is leading towards the accumulation of increased solid waste in the natural environment. This affects the natural system and creates various environmental hazards. Plastics are seen as an environmental threat because they are difficult to degrade. This review describes the occurrence and distribution of microbes that are involved in the degradation of both natural and synthetic polymers. Much interest is generated by the degradation of existing plastics using microorganisms. It seems that biological agents and their metabolic enzymes can be exploited as a potent tool for polymer degradation. Bacterial and fungal species are the most abundant biological agents found in nature and have distinct degradation abilities for natural and synthetic polymers.

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“…Spectra were processed and analyzed using the OMNIC software (Thermo Fisher Scientific, USA). To interpret the FTIR spectra of microorganisms, we used data obtained for pure cultures of Bacillus amyloliquefaciens [25], Stenotrophomonas maltophilia [26], or various species of genera Aspergillus [27,28], Cladosporium [29], Ulocladium [29], and Bacillus [30].…”

Section: Micro-ftir Spectroscopy and Data Analysismentioning

confidence: 99%

Detection of potential biodeterioration risks for tempera painting in 16th century exhibits from State Tretyakov Gallery

Zhgun¹,

Avdanina²,

Shumikhin

et al. 2020

PLoS ONE

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In this study, we investigated biodeterioration of materials used in tempera painting by analyzing the structure of the microbiome in ancient tempera paintings exhibited in State Tretyakov Gallery, Moscow, Russia. Samples were obtained from 16 th-century paintings, including a grand Russian Orthodox icon "The Church Militant" (all exhibits were without visible signs of biodeterioration), and from surrounding walls and ceilings (with vast zones of visible microbial growth). A number of microorganisms isolated from visible signs of environmental bio-damage were also detected in tempera paintings kept in temperature-and humidity-controlled conditions unfavorable for the growth of microflora. To determine the biodegrading potential of the microbiome for tempera paintings, we developed a set of mock layers from paintwork materials used in tempera painting of 16 th century and their modern analogues and inoculated them with cultures containing filamentous fungi and bacteria. The susceptibility to microbial degradation of individual tempera painting materials was examined by micro-Fourier Transform Infrared (FTIR) spectroscopy, which enabled detection of even invisible signs of biodeterioration. The results indicate that the microorganisms isolated from paintings and surrounding areas in the museum are capable of causing significant damage of various tempera materials, among which varnishes were the most resistant; however, the addition of antiseptic (sodium pentachlorophenolate) can inhibit microbial growth on sturgeon glue.

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An approach to low-density polyethylene biodegradation by Bacillus amyloliquefaciens

Cited by 167 publications

References 13 publications

Biodegradation of thermally treated low density polyethylene by fungus Rhizopus oryzae NS 5

Biodegradation of thermally treated low density polyethylene by fungus Rhizopus oryzae NS 5

Review on the current status of polymer degradation: a microbial approach

Detection of potential biodeterioration risks for tempera painting in 16th century exhibits from State Tretyakov Gallery

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