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Abstract
The forest products industries of the southern United States harvest approximately 7 million dry tons of pine bark each year. This resource receives little utilization other than recovery of fuel values. approximately 2 million dry tons (30-40% of bark dry weight) of potentially valuable polyflavonoids are burned annually. Conifer bark flavonoids have potential industrial application in manufacture of antioxidants, pigments, adhesives, clay dispersants, grouting agents, water-soluble heavy-metal fertilizers, ion exchange resins, and additives for boiler water, and drilling muds [1]. As witnessed by the recent interest in finding substitutes for phenol, the commercial potential for silvichemicals is improving greatly.
Citation
Hemingway, R.W. 1976. Progress in the chemistry of shortleaf and loblolly pine bark flavonoids. In: Applied Polymer Symposium No. 28: 1349-1364