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- W76729013 abstract "Modern arthropod cuticles consist of chitin fibres in a protein matrix, but fossil arthropods, particularly those earlier than Tertiary, yield an aliphatic composition. This apparent contradiction is addressed in this chapter. Modern cockroach, scorpion and shrimp cuticle were subjected to artificial heating (maturation) techniques (350 °C/700 Bars/24 h) following various chemical treatments, and analysing them with pyrolysis-gas chromatography-mass spectrometry. Artificially matured untreated cuticle yielded moieties related to phenols and alkylated substituents, pyridines, pyrroles and possibly indenes (derived from chitin). Amides, C16 and C18 fatty acids and alkane/alk1-1ene homologues ranging from C10 to C19 were also present, the last indicating the presence of an aliphatic polymer, as often encountered in fossil arthropods. Cuticles matured after lipid extraction and hydrolysis did not show the presence of these alkane/alk-1-ene homologues providing direct experimental evidence that lipids incorporated from the cuticle were the source of the aliphatic polymer." @default.
- W76729013 created "2016-06-24" @default.
- W76729013 creator A5061729631 @default.
- W76729013 date "2013-12-28" @default.
- W76729013 modified "2023-10-03" @default.
- W76729013 title "Transformation of Arthropod Biopolymers in High P-T Conditions" @default.
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- W76729013 doi "https://doi.org/10.1007/978-94-007-7936-5_8" @default.
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