Complete genome of biodegradable plastics-decomposing Roseateles depolymerans KCTC 42856T (=61AT)

BACKGROUND This research is focused on the effect of temperature on the growth of active biofilms on polypropylene (PP) filter media in aerobic fixed biofilm reactors (FBR) for wastewater treatment. RESULTS High‐throughput sequencing was used to explore the composition and diversity of the microbial community of 14‐days‐old (starting phase) biofilms grown at 10, 20 and 30°C. Members of the classes Proteobacteria, Bacteroidetes, and Firmicutes were predominant in all the biofilm samples retrieved from PP‐FBRs. A total of 108 genera of bacteria were identified, with some of them present in all three reactors, including Trichococcus, Zoogloea, Aeromonas, Acidovorax, and Malikias, among others. Besides these shared populations, certain genera were abundantly found in individual biofilm samples, like Brevundimonas (17.1%), Chitinimonas (10.3%) and Roseateles (39.3%), at 10, 20, and 30°C, respectively. The metabolic capabilities of active microbial communities in PP‐FBRs were estimated by assessing the changes in different variables (BOD, DO, and pH) in the influent and effluent during operation. A noteworthy BOD removal (66.6%) was shown by PP‐FBRs operating at 30°C, compared with 20°C (28.3%) and 10°C (28.8%),consistent with the DO levels recorded in the effluents, highest at 30°C (70.5%), and decreasing with declining temperatures. Substantial wastewater treatment efficiencies were observed in the reactors at 30°C, attributable to the higher relative abundance and diversity of microbial biofilms. CONCLUSIONS The development of physiologically active biofilms in PP at all prevailing temperatures strongly suggests that the material is suitable to be employed in FBRs for wastewater treatment at different operational temperatures. © 2018 Society of Chemical Industry

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“…Roseateles sp. areaerobic, heterotrophic bacteria, able to depolymerize aliphatic as well as aliphatic–aromatic co‐polyesters …”

Section: Discussionmentioning

confidence: 99%

Investigation of the active biofilm communities on polypropylene filter media in a fixed biofilm reactor for wastewater treatment

Hodgson

Smith

Marchesi

et al. 2018

J of Chemical Tech & Biotech

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“…In this regard, efforts to develop and utilize biodegradable plastics, which can be naturally degraded by microorganisms, have received global attention (Lee et al, 2016). Proper disposal of biodegradable plastics remains challenging, especially in the existing framework of waste management (Shah et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

“…There are significant economical and industrial interests in seeking environmentally friendly alternatives to traditional petroleum-based plastic products (Lee et al, 2016;Tokiwa et al, 2009). In this regard, efforts to develop and utilize biodegradable plastics that can be naturally degraded by microorganisms have received global attention.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Aliphatic polymers can be biodegraded with relative ease, however, hold little market value due to their fragile nature and low durability (Lee et al, 2016;Vert, 2005). In turn, development of aliphatic-aromatic co-polymers that combine the excellent mechanical properties of conventional aromatic polymers and biodegradability of aliphatic polymers has received a boost (Lee et al, 2016;Shah et al, 2014). However, proper disposal of biodegradable plastics (i.e., complete neutralization and little contamination with other waste and human food) remains challenging, especially in the existing framework of waste management (Lee et al, 2016;Shah et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Study on the (bio)degradation Process of Bioplastic Materials under Industrial Composting Conditions

Adamcová¹,

Elbl²,

Zloch³

et al. 2017

Acta Univ. Agric. Silvic. Mendelianae Brun.

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The objective of this study was to determine the biodegradability of bioplastic materials -sponge cloths -available on the European market. They are labeled as 100 % biodegradable but not certified as compostable. The test was carried out in real composting environment. The project duration was 12 weeks. The emphasis was put on discovering whether the sponge cloths are biodegradable or not. Based on the results, it can be concluded that sponge cloths have decomposed completely (sample C and sample D). Samples A have decomposed but exhibited slower degradation rate. Samples B exhibited the higher degradation rate. The main conclusion from this study is that biodegradation of bioplastics materials strongly depends on both, the environment where they are placed and the chemical nature of the material.

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Mitsuaria chitinivorans sp. nov. a potential candidate for bioremediation: emended description of the genera Mitsuaria, Roseateles and Pelomonas

Shivaji

Gundlapally

2020

Arch Microbiol

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Complete genome of biodegradable plastics-decomposing Roseateles depolymerans KCTC 42856T (=61AT)

Cited by 8 publications

References 10 publications

Investigation of the active biofilm communities on polypropylene filter media in a fixed biofilm reactor for wastewater treatment

Investigation of the active biofilm communities on polypropylene filter media in a fixed biofilm reactor for wastewater treatment

Study on the (bio)degradation Process of Bioplastic Materials under Industrial Composting Conditions

Mitsuaria chitinivorans sp. nov. a potential candidate for bioremediation: emended description of the genera Mitsuaria, Roseateles and Pelomonas

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