FATTY AND RESIN ACIDS OF SPANISH PINUS-PINASTER AIT SUBSPECIES

被引：6
|
作者：
ARRABAL, C
CORTIJO, M
机构：
[1] Universidad Politécnica de Madrid, Escuela Técnica Superior de Ingenieros de Montes, Departamento de Ingeniería Forestal, Ciudad Universitaria, Madrid
来源：
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY | 1994年 / 71卷 / 09期
关键词：
FATTY ACIDS; PINUS PINASTER AIT; RESIN ACIDS; EXTRACTIVES;
D O I：
10.1007/BF02542276
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The qualitative and quantitative composition of the acid fraction of wood extractives from three Spanish Pinus pinaster Ait. subspecies (Atlantic, mountain Mediterranean and plain Mediterranean) were studied. Seven samples of each subspecies were prepared according to Technical Association of Pulp and Paper Standards, extracted with petroleum ether (b.p. 40-60 degrees C) in a Soxhlet apparatus and saponified with ethanolic 0.4N potassium hydroxide. The acid fraction was methylated with diazomethane and studied by combined gas chromatography/mass spectrometry. The major constituents found were palmitic, oleic and linoleic among the fatty acids and pimaric, sandara-copimaric, levopimaric, isopimaric, abietic and dehydroabietic among the resin acids. Neoabietic and palustric acids were not found. Variations in the quantitative composition of the acid fraction enable us to distinguish the three subspecies. Main quantitative differences are found between the Atlantic subspecies and the two Mediterranean subspecies.
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页码：1039 / 1040
页数：2
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