Chemical Composition Characteristics of Pinus latteri Mason Rosin and Turpentine from the South of Cambodia

The chemical composition characteristics of Pinus latteri Mason rosin and turpentine from the South of Cambodia was studied using GC and GC-MS.The Pinus latteri Mason oleoresin was first separated into two fractions of rosin and turpentine oil,and they were analyzed qualitatively and quantitatively.Nine components were identified from the rosin fraction including 8(14),15-pimaradiene,sandaracopimaric acid,isopimaric acid,8(9)-isopimaric acid,dehydroabietic acid,8,12-abietadienoic acid,abietic acid,neoabietic acid and mercusic acid.The proportions of pimarane-type,abietane-type,and dibasic resin acids were 49.59 %,37.18 % and 12.4 %,respectively.The main resin acids were isopimaric acid,8(9)-isopimaric acid,abietic acid and mercusic acid,and their contents based on rosin weight were 20.9 %,21.14 %,23.45 % and 12.40 %,respectively.Sixteen components in turpentine oil were determined including 13 monoterpenes,2 sesquiterpenes,and one diterpene.Monoterpene was the main component and accounted for 99.49 % of turpentine oil.The main monoterpenes were m-mentha-4,8-diene,fenchene and alloocimene,and their contents in turpentine oil were 24.01 %,29.21 % and 23.71 %,respectively.