Your browser doesn't support javascript.
loading
Mycodegradation of low-density polyethylene by Cladosporium sphaerospermum, isolated from platisphere.
Sathiyabama, M; Boomija, R V; Sathiyamoorthy, T; Mathivanan, N; Balaji, R.
Afiliación
  • Sathiyabama M; Department of Botany, School of Life Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu, 620 024, India. sathiyabama@bdu.ac.in.
  • Boomija RV; Department of Botany, School of Life Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu, 620 024, India.
  • Sathiyamoorthy T; CAS in Botany, University of Madras, Chennai, Tamil Nadu, 600025, India.
  • Mathivanan N; CAS in Botany, University of Madras, Chennai, Tamil Nadu, 600025, India.
  • Balaji R; CAS in Botany, University of Madras, Chennai, Tamil Nadu, 600025, India.
Sci Rep ; 14(1): 8351, 2024 04 09.
Article en En | MEDLINE | ID: mdl-38594512
ABSTRACT
Plastic accumulation is a severe threat to the environment due to its resistivity to thermal, mechanical and biological processes. In recent years, microbial degradation of plastic waste disposal is of interest because of its eco-friendly nature. In this study, a total of 33 fungi were isolated from the plastisphere and out of which 28 fungal species showed halo zone of clearance in agarized LDPE media. The fungus showing highest zone of clearance was further used to evaluate its degradation potential. Based on morphological and molecular technique, the fungus was identified as Cladosporium sphaerospermum. The biodegradation of LDPE by C. sphaerospermum was evaluated by various methods. The exposure of LDPE with C. sphaerospermum resulted in weight loss (15.23%) in seven days, higher reduction rate (0.0224/day) and lower half-life (30.93 days). FTIR analysis showed changes in functional group and increased carbonyl index in LDPE treated with C. sphaerospermum. SEMimages evidenced the formation of pits, surface aberrations and grooves on the LDPE film treated with the fungus whereas the untreated control LDPE film showed no change. AFM analysis confirmed the surface changes and roughness in fungus treated LDPE film. This might be due to the extracellular lignolytic enzymes secreted by C. sphaerospermum grown on LDPE. The degradation of polyethylene by Short chain alkanes such as dodecane, hexasiloxane and silane were identified in the extract of fungus incubated with LDPE film through GC-MS analysis which might be due to the degradation of LDPE film by C. sphaerospermum. This was the first report on the LDPE degradation by C. sphaerospermum in very short duration which enables green scavenging of plastic wastes.
Asunto(s)
Palabras clave

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Cladosporium / Polietileno Idioma: En Revista: Sci Rep Año: 2024 Tipo del documento: Article País de afiliación: India

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Cladosporium / Polietileno Idioma: En Revista: Sci Rep Año: 2024 Tipo del documento: Article País de afiliación: India