Evidence of microplastics release from polythene and paper cups exposed to hot and cold: A case study on the compromised kinetics of catalase

被引：12

作者：

Samal, R. R. ^{[1
,2
]}

Navani, H. S. ^{[1
,3
]}

Saha, S. ^{[4
]}

Kisan, B. ^{[5
]}

Subudhi, U. ^{[1
,2
]}

机构：

[1] CSIR Inst Minerals & Mat Technol, Environm & Sustainabil Dept, Biochem & Biophys Lab, Bhubaneswar 751013, Odisha, India

[2] Acad Sci & Innovat Res AcSIR, Sch Biol Sci, Ghaziabad 201002, Uttar Pradesh, India

[3] Madurai Kamaraj Univ, Dept Microbial Technol, Madurai 625021, Tamil Nadu, India

[4] CSIR Inst Minerals & Mat Technol, Mat Chem Dept, Bhubaneswar 751013, Odisha, India

[5] Utkal Univ, Dept Phys, Bhubaneswar 751004, Odisha, India

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2023年 / 454卷

关键词：

Microplastics; Polythene bag; Paper cups; Bovine liver catalase; Polyethylene; BOVINE LIVER CATALASE; RESONANCE RAMAN-SPECTRA; POLYMERS; SPECTROSCOPY; EXPRESSION; WATER;

D O I：

10.1016/j.jhazmat.2023.131496

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Microplastics (MPs) have become widespread in the modern world posing a hidden threat to the global environ-ment. However, growing accumulation and devastating impact of MPs on human health and the environment have received least attention. In the current investigation, for the first time MPs have been identified which are released from the daily usable materials like polythene bags (PB) and paper cups (PC) in response to hot and cold water exposure at different time intervals. The impact of these MPs has been assessed on the major antioxidant enzyme, bovine liver catalase (BLC). The binding of MPs caused conformational changes in BLC by decreasing the alpha-helical content, which results in reduction of the enzymatic activity. Kinetics study revealed nearly similar to 1.4-fold compromised catalytic efficiency of catalase in response to MPs. Nevertheless, hepatic catalase activity was also significantly decreased in presence of MPs. Further, materials like glass, porcelain, stainless steel, and high-grade plastics are discovered as greener alternatives to PB and PC.

引用

页数：13