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- Title
Lignans, the Major Component of Resin from Araucaria angustifolia Knots).
- Authors
Anderegg, Robert J.; Rowe, John W.
- Abstract
Thirty percent of the knots of parana pine (Araucaria angustifolia) is a commercially important glassy resin obtained by extraction with hot ethanol. Approximately 90% of this resin was found to be a mixture of lignans, predominantly of the guaiacyl type. Several compounds were isolated from the glassy resin, (+)-pinoresinol and its monomethyl and dimethyl ethers (pinoresinol monomethyl ether is a new natural product), (4-)-isolariciresinol, (-)-secoisolariciresinol, and hinokiresinol; minor amounts of fatty acids and esters and free sitosterol, campesterol, and other sterols were also isolated. The general chemistry of the extract revealed 3.1 °0 carbohydrates, .4° hide powder-reactive tannin, and no diterpenes, ash, alkaloids, or formaldehyde-precipitable tannin.
- Publication
Holzforschung: International Journal of the Biology, Chemistry, Physics, & Technology of Wood, 1974, Vol 28, Issue 5, p171
- ISSN
0018-3830
- Publication type
Article