Cutin-derived CuO reaction products from purified cuticles and tree leaves
- Univ. of Washington, Seattle (USA)
Long chain (C{sub 16}-C{sub 18}) hydroxy fatty acids are obtained among the nonlignin-derived reaction products from the CuO oxidation of a variety of geochemical samples. In order to investigate the origin of these acids, the CuO reaction products of isolated cuticles and whole leaves were investigated. The reaction products from the CuO oxidation of purified apple (Malus pumila) cuticle include 16-hydroxyhexadecanoic acid, 10,16-dihydroxyhexadecanoic acid, 9,10,18-trihydroxyoctadec-12-enoic acid, and 9,10,18-trihydroxyoctadecanoic acid as major components. The distribution of these cutin-derived CuO reaction products is similar to the monomer compositions deduced from traditional methods of cutin analysis. Oxidation of whole English Holly (Ilex aquifolium) leaves yields cutin-derived acidic reaction products (in addition to lignin-derived phenols) similar to those obtained from oxidation of the corresponding isolated cuticles, indicating that CuO oxidation of bulk plant tissue is a viable procedure of cutin analysis in geochemical applications.
- OSTI ID:
- 5996993
- Journal Information:
- Geochimica et Cosmochimica Acta; (USA), Journal Name: Geochimica et Cosmochimica Acta; (USA) Vol. 54:11; ISSN GCACA; ISSN 0016-7037
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
580000* -- Geosciences
BODY
CARBOHYDRATES
CARBOXYLIC ACIDS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
COPPER COMPOUNDS
COPPER OXIDES
GEOCHEMISTRY
LIGNIN
MOLECULAR STRUCTURE
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PLANT TISSUES
POLYSACCHARIDES
ROCKS
SACCHARIDES
SEDIMENTARY ROCKS
SOIL CHEMISTRY
SOILS
TISSUES
TRANSITION ELEMENT COMPOUNDS