Journal
CHEMOSPHERE
Volume 298, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2022.134269
Keywords
Polystyrene; Polyhydroxybutyrate; Cytotoxicity; Microplastics; Histopathology
Categories
Funding
- Sathyabama Institute of Science and Technology, Chennai, Tamilnadu, India [MoES/36/OOIS/Extra/53/2016]
- Ministry of Earth and Science, New Delhi, India [2020R1G1A1012069]
- National Research Foundation of Korea by the Korean Government (Ministry of Science and ICT~MSIT)
- King Saud University, Riyadh, Saudi Arabia [RSP 2022/11]
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Plastic pollution is a serious problem in aquatic environments. This study focused on comparing the toxicity of synthetic plastic and bioplastic on fish to understand the degradability and toxicity of bioplastics. The results showed that fish exposed to bioplastic microspheres exhibited significant tissue necrosis and alteration.
Plastic pollution is a serious issue in the aquatic environments. This concerning issue of negative impacts of synthetic plastic debris particles in the aquatic ecosystem give rise to the bioplastic materials. These bioplastics are synthesized from biological organisms, retaining same structural and functional ability as synthetic plastics. However, their degradability and toxicity in natural environment is still unknown. So, in this study we have focused on to elucidate the toxicity caused by Bacillus subtilis synthesized biopolymer - polyhydroxybutyrate (PHB) microspheres and compare their effects with synthetic plastic. The effect of Synthetic plastic (Polystyrene microspheres) and bioplastic (PHB microspheres) were studied on acute exposure to in-vitro and in-vivo model of Lates calcarifer. PHB microspheres were characterized and confirmed using Flurospectrophotometer, FourierTransform infrared spectroscopy (FTIR), Particle size analyzer (PSA), Zeta potential and Scanning electron Microscope (SEM). Histopathology assessment for in-vivo model and MTT assay for in-vitro model were performed. The results of fish exposed to 0.5 mu g/ml and 1 mu g/ml of both microspheres have shown significant necrosis and alteration in muscle, gill and heart tissues. The increased cytotoxicity observed in spleen cell line of Lates
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