The fungus among us: A new way of decomposing BPA-containing plastic

Mukesh Doble and Trishul Artham note that manufacturers produce about 2.7 million tons of plastic containing BPA each year. Polycarbonate is an extremely recalcitrant plastic, used in everything from screwdriver handles to eyeglass lenses, DVDs, and CDs. Some studies have suggested that the BPA may have a range of adverse health effects, sparking the search for an environmentally safe way of disposing of waste plastic to avoid release of BPA.

The scientists pretreated polycarbonate with ultraviolet light and heat and exposed it to three kinds of fungi — including the fabled white-rot fungus, used commercially for environmental remediation of the toughest pollutants. The scientists found that fungi grew better on pretreated plastic, using its BPA and other ingredients as a source of energy and breaking down the plastic. After 12 months, there was almost no decomposition of the untreated plastic, compared to substantial decomposition of the pretreated plastic, with no release of BPA.

ARTICLE FOR IMMEDIATE RELEASE “Biodegradation of Physiochemically Treated Polycarbonate by Fungi”

DOWNLOAD FULL TEXT ARTICLE http://pubs.acs.org/stoken/presspac/presspac/full/10.1021/bm9008099

CONTACT:
Mukesh Doble, Ph.D.
Professor
Department of Biotechnology
Indian Institute of Technology Madras
Chennai, India
Phone: 91 44 2257 4107
Fax: 91 44 2257102
Email: mukeshd@iitm.ac.in

Media Contact

Michael Bernstein EurekAlert!

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http://www.acs.org

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