Quantitative and qualitative determination of some wood extracts in different parts of Pinus brutia.Ten in Mashkita region- Lattakia

(analytical- chromatographic study)

Abstract

This study was conducted on Pinus brutia.Ten trees felled from the Mashqita area in Lattakia Governorate in 2024, with the aim of obtaining the woody raw material and estimating the amount of wood extracts as a percentage of three parts of the woody trunk (heartwood, sapwood, and bark) using polar solvents (Ethanol) and non-polar solvents (Dichloromethane) and determining the quality of the extracts using Gas Chromatography/Mass Spectrometry (GC-MS).

 The results showed that the weight percentage of the extract in the Ethanol extraction solution was more than 14 times greater than in the dichloromethane extraction solution, and the differences were significant between the two extracts. The results also showed that the bark contained the highest percentage of the total extracts (18.82%), followed by the heartwood (5.43%) and the sapwood (2.92%). The results of the GC-MS chromatographic analysis revealed the presence of major compounds such as resinous acids, terpenes, phenols, and fatty acids, with clear differences in their percentages between the three studied parts. Resinous acids recorded the highest percentage in sapwood (57.4%), while phenols outnumbered the heartwood (36.72%).

The results provide a scientific basis for the sustainable exploitation of forest resources, while enhancing the economic value of non-timber forest products.