Phylloplane Fungal Enzyme Accelerate Decomposition of Biodegradable Plastic Film in Agricultural Settings

Koitabashi, Motoo; Sameshima–Yamashita, Yuka; Watanabe, Takashi; Shinozaki, Yukiko; Kitamoto, Hiroko

doi:10.6090/jarq.50.229

Cited by 18 publications

(9 citation statements)

References 13 publications

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“…To discuss the scope of the same is similar in respect to this study. The existence of a similar kind of enzyme, as discussed by Koitabashi et al 58. is entirely possible for the Penicillium sp.…”

Section: Discussionmentioning

confidence: 60%

Evaluation of HDPE and LDPE degradation by fungus, implemented by statistical optimization

Ojha

Pradhan

Singh

et al. 2017

Sci Rep

257

107

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Plastic in any form is a nuisance to the well-being of the environment. The ‘pestilence’ caused by it is mainly due to its non-degradable nature. With the industrial boom and the population explosion, the usage of plastic products has increased. A steady increase has been observed in the use of plastic products, and this has accelerated the pollution. Several attempts have been made to curb the problem at large by resorting to both chemical and biological methods. Chemical methods have only resulted in furthering the pollution by releasing toxic gases into the atmosphere; whereas; biological methods have been found to be eco-friendly however they are not cost effective. This paves the way for the current study where fungal isolates have been used to degrade polyethylene sheets (HDPE, LDPE). Two potential fungal strains, namely, Penicillium oxalicum NS4 (KU559906) and Penicillium chrysogenum NS10 (KU559907) had been isolated and identified to have plastic degrading abilities. Further, the growth medium for the strains was optimized with the help of RSM. The plastic sheets were subjected to treatment with microbial culture for 90 days. The extent of degradation was analyzed by, FE-SEM, AFM and FTIR. Morphological changes in the plastic sheet were determined.

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Section: Discussionmentioning

confidence: 60%

Evaluation of HDPE and LDPE degradation by fungus, implemented by statistical optimization

Ojha

Pradhan

Singh

et al. 2017

Sci Rep

257

107

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“…Nowadays, the ensilage film used is made of polyethylene resistant to biotic and abiotic factors. After the usage, it becomes a waste product, and its decomposition takes many years, with the release of many harmful compounds into the environment [ 9 , 10 , 11 ]. The foil used to cover the silage stocks could be easily reused.…”

Section: Introductionmentioning

confidence: 99%

Wastes from Agricultural Silage Film Recycling Line as a Potential Polymer Materials

et al. 2021

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The recycling of plastics is currently one of the most significant industrial challenges. Due to the enormous amounts of plastic wastes generated by various industry branches, it is essential to look for potential methods for their utilization. In the presented work, we investigated the recycling potential of wastes originated from the agricultural films recycling line. Their structure and properties were analyzed, and they were modified with 2.5 wt % of commercially available compatibilizers. The mechanical and thermal performance of modified wastes were evaluated by tensile tests, thermogravimetric analysis, and differential scanning calorimetry. It was found that incorporation of such a small amount of modifiers may overcome the drawbacks caused by the presence of impurities. The incorporation of maleic anhydride-grafted compounds enhanced the tensile strength of wastes by 13–25%. The use of more ductile compatibilizers—ethylene-vinyl acetate and paraffin increased the elongation at break by 55–64%. The presence of compatibilizers also reduced the stiffness of materials resulting from the presence of solid particles. It was particularly emphasized for styrene-ethylene-butadiene-styrene and ethylene-vinyl acetate copolymers, which caused up to a 20% drop of Young’s modulus. Such effects may facilitate the further applications of analyzed wastes, e.g., in polymer film production. Thermal performance was only slightly affected by compatibilization. It caused a slight reduction in polyethylene melting temperatures (up to 2.8 °C) and crystallinity degree (up to 16%). For more contaminated materials, the addition of compatibilizers caused a minor reduction in the decomposition onset (up to 6 °C). At the same time, for the waste after three washing cycles, thermal stability was improved. Moreover, depending on the desired properties and application, materials do not have to go through the whole recycling line, simplifying the process, reducing energy and water consumption. The presented results indicate that it is possible to efficiently use the materials, which do not have to undergo the whole recycling process. Despite the presence of impurities, they could be applied in the manufacturing of products which do not require exceptional mechanical performance.

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“…PBS can be produced by a two stage polycondensation starting from 1,4-butanediol and succinic acid 9 . Koitabashi (2012) has fabricated mulch films from PBS polymer and observed a good degradation rate by phylloplane fungi on the field 10,11 . This has reduced the disposal works and cleaning cost significantly to the farmers.…”

mentioning

confidence: 99%

Effect of Empty Fruit Brunch reinforcement in PolyButylene-Succinate/Modified Tapioca Starch blend for Agricultural Mulch Films

Ayu¹,

Abdan

Saffian³

et al. 2020

Sci Rep

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In this study, it focused on empty fruit brunch (EFB) fibres reinforcement in polybutylene succinate (PBS) with modified tapioca starch by using hot press technique for the use of agricultural mulch film. Mechanical, morphological and thermal properties were studied. Mechanical analysis showed decreased in values of modulus strength for both tensile and flexural testing for fibres insertion. Higher EFB fibre contents in films resulted lower mechanical properties due to poor fibre wetting from insufficient matrix. This has also found evident in SEM micrograph, showing poor interfacial bonding. Water vapour permeability (WVP) shows as higher hydrophilic EFB fibre reinforcement contents, the rate of WVP also increase. Besides this, little or no significant changes on thermal properties for composite films. This is because high thermal stability PBS polymer show its superior thermal properties dominantly. Even though EFB fibres insertion into PBS/tapioca starch biocomposite films have found lower mechanical properties. It successfully reduced the cost of mulch film production without significant changes of thermal performances. open Scientific RepoRtS | (2020) 10:1166 | https://doi.

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Phylloplane Fungal Enzyme Accelerate Decomposition of Biodegradable Plastic Film in Agricultural Settings

Cited by 18 publications

References 13 publications

Evaluation of HDPE and LDPE degradation by fungus, implemented by statistical optimization

Evaluation of HDPE and LDPE degradation by fungus, implemented by statistical optimization

Wastes from Agricultural Silage Film Recycling Line as a Potential Polymer Materials

Effect of Empty Fruit Brunch reinforcement in PolyButylene-Succinate/Modified Tapioca Starch blend for Agricultural Mulch Films

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