Comparative Chemical Analysis of the Extractives Constituents in the Bark and Heartwood of Juglans regia L. from North of Iran

• Main Author: Seyyed Khalil Hosseinihashemi
• Format: Article
• Language: English
• Published: Society of Open Science 2012-04-01
• Series: Journal of Advanced Laboratory Research in Biology
• Subjects: Heartwood; Bark; Juglone; Benmary bath
• Online Access: https://e-journal.sospublication.co.in/index.php/jalrb/article/view/107

Exhaustive ethanol-toluene of the bark and heartwood of Juglans regia L. (Juglandaceae) afforded pale red colored extractives 10 and 12% yields, respectively. Detailed chemical evaluation of these extracts using GC/MS revealed the major components in the bark and heartwood extractives to be the 3,7-dioxa-2,8- disilanonane,2,2,8,8-tetramethyl (25.17%), while the major heartwood extractives constituent was benzoic acid, 3,4,5-tri(hydroxyl)/Gallic acid (44.57%). The same components of the bark and the heartwood also contained amounts of the gallic acid, 3,7-dioxa-2,8-disilanonane, 2,2,8,8- tetramethyl, and d-glucose,2,3,4,5,6- pentakis-o-(hydroxyl). The most toxic components in the heartwood were juglone (5.15%) and 2,7-dimethylphenanthrene (5.81%).Heartwood