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The impact of pyrolysis temperature on physicochemical properties and pulmonary toxicity of tobacco stem micro-biochar.
Chen, Yi-Chun; Chen, Ku-Fan; Lin, Jun-Hong; Huang, Shih-Wei; Chen, Hung-Hsiang; Andrew Lin, Kun-Yi; Lin, Chia-Hua.
Afiliación
  • Chen YC; Department of Biotechnology, National Formosa University, Yunlin, 63208, Taiwan; Department of Civil Engineering, National Chi Nan University, Nantou, 54561, Taiwan.
  • Chen KF; Department of Civil Engineering, National Chi Nan University, Nantou, 54561, Taiwan.
  • Lin JH; Department of Natural Biotechnology, Nanhua University, Chiayi, 62249, Taiwan.
  • Huang SW; Department of Electronics, Cheng Shiu University, Kaohsiung, 83347, Taiwan; Center for Environmental Toxin and Emerging-Contaminant Research, Cheng Shiu University, Kaohsiung, 83347, Taiwan; Super Micro Research and Technology Center, Cheng Shiu University, Kaohsiung, 83347, Taiwan.
  • Chen HH; Department of Biotechnology, National Formosa University, Yunlin, 63208, Taiwan; Department of Civil Engineering, National Chi Nan University, Nantou, 54561, Taiwan.
  • Andrew Lin KY; Department of Environmental Engineering, National Chung Hsing University, Taichung, 40227, Taiwan. Electronic address: linky@nchu.edu.tw.
  • Lin CH; Department of Biotechnology, National Formosa University, Yunlin, 63208, Taiwan. Electronic address: vicchlin@nfu.edu.tw.
Chemosphere ; 263: 128349, 2021 Jan.
Article en En | MEDLINE | ID: mdl-33297274
ABSTRACT
Biochars (BCs) are currently widely used, yet their impact on human health is mostly unknown. We generated micro-tobacco stem-pyrolysed BCs (mTBCs) at different pyrolysis temperatures and assessed pulmonary toxicity in normal human lung epithelial BEAS-2B cells. mTBCs generated at 350 °C (mTBC350) and 650 °C (mTBC650) were analysed and compared for physicochemical properties and adverse effects. Pyrolysis temperature had a significant influence on chemical composition, particle size, specific surface area and aromatic carbon structure. mTBC650 displayed a highly ordered aromatic carbon structure with smaller particle size, high surface area (20.09 m2/g) and high polycyclic aromatic hydrocarbon and metal content. This composition could promote reactive oxygen species accumulation accompanied by greater cytotoxicity, genotoxicity and epithelial barrier malfunction in cultured cells. Thus, the risk of pulmonary toxicity owing to micro-BCs (mBCs) is affected by pyrolysis temperature. Long-term exposure to mBCs produced at high temperatures may lead to or exacerbate pulmonary disease.
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Texto completo: 1 Base de datos: MEDLINE Asunto principal: Nicotiana / Pirólisis Idioma: En Revista: Chemosphere Año: 2021 Tipo del documento: Article
Texto completo
Imprimir
XML
PubMed Links
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Texto completo: 1 Base de datos: MEDLINE Asunto principal: Nicotiana / Pirólisis Idioma: En Revista: Chemosphere Año: 2021 Tipo del documento: Article