Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/13849

TitleEnzymatic hydrolysis of PTT polymers and oligomers
Author(s)Eberl, A.
Heumann, Sonja
Kotek, R.
Kaufmann, F.
Mitscher, S.
Paulo, Artur Cavaco
Gübitz, Georg M.
KeywordsPoly(trimethylene terephthalate)
Polyester
Polyesterase
Cutinase
Issue dateMay-2008
PublisherElsevier
JournalJournal of Biotechnology
Abstract(s)Oligomers and polymers (film, fabrics) of the linear aromatic polyester poly(trimethylene terephthalate) (PTT) were treated with polyesterases from Thermomyces lanuginosus, Penicillium citrinum, Thermobifida fusca and Fusarium solani pisi. The cutinase from T. fusca was found to release the highest amounts of hydrolysis products from PTT materials and was able to open and hydrolyse a cyclic PTT dimer according to RP-HPLC–UV detection. In contrast, the lipase from T. lanuginosus also showed activity on the PTT fibres and on bis(3-hydroxypropyl) terephthalate (BHPT) but was not able to hydrolyse the polymer film, mono(3-hydroxypropyl) terephthalate (MHPT) nor the cyclic dimer of PTT. As control enzymes inhibited with mercury chloride were used. Surface hydrophilicity changes were investigated with contact angle measurements and the degree of crystallinity changes were determined with DSC.
TypeArticle
DescriptionArticle in Press
URIhttp://hdl.handle.net/1822/13849
DOI10.1016/j.jbiotec.2008.02.015
ISSN0168-1656
Publisher versionhttp://www.sciencedirect.com/science/article/pii/S0168165608000667
Peer-Reviewedyes
AccessOpen access
Appears in Collections:DET/2C2T - Artigos em revistas internacionais com arbitragem científica

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