Investigation of Flavonoid Extractives and their Contribution to Color of Dalbergia latifolia Roxb Wood

Masendra Masendra (Department of Bioresources and Veterinary Technology, Vocational College, Universitas Gadjah Mada)
Brandon Aristo Verick Purba (Department of Forest Products Technology, Faculty of Forestry, Universitas Gadjah Mada)
Denny Irawati (Department of Forest Products Technology, Faculty of Forestry, Universitas Gadjah Mada)
Ganis Lukmandaru (Department of Forest Products Technology, Faculty of Forestry, Universitas Gadjah Mada)

Wood Research Journal : Journal of Indonesian Wood Research Society
Vol 12, No 2 (2021): Wood Research Journal

Dalbergia latifolia wood is a beautiful wood with color of dark purple to dark brown and rich in flavonoid compounds. This study aimed to investigate the presence of flavonoid compounds from D. latifolia wood and their contribution to its color. The D. latifolia wood sample was powdered and extracted with ethanol-toluene (1/2, v/v). The ethanol- toluene extract then was column chromatographed to obtain fraction 1 to fraction 12. Methylation was conducted to each fraction to detect flavonoid compounds by GC-MS. The results of GC-MS analysis showed that ethanol- toluene extract gave Fr- 1- Fr. 3 as soluble flavonoids (34.2%) and Fr. 4- Fr. 12 as insoluble polymers (62.6%). Furthermore, 12 flavonoids i.e latifolin, dalbergiphenol, chalcone, dalbergin, and their derivatives were characterised and these compounds might be significance in contributing to color of D. latifolia wood.