Some Chemical Constituents of Ten-Year-Old American Sycamore and Black Locust Grown In Illinois

Poo Chow, Gary L. Rolfe, Todd F. Shupe


Research was initiated to determine the effects of site (upland, bottomland) and tree origin (seedling, coppice) on the chemical composition of wood of two, ten-year-old hardwood species grown in Illinois. Ten-year-old black locust (Robinia pseudoacacia L.) and American sycamore (Platanus occidentalis L.) were evaluated for alcohol-benzene extractives, hot-water extractives, one-percent NaOH extractives. Klason lignin, holocellulose, and alpha-cellulose. Black locust had statistically higher alcohol-benzene extractives, hot-water extractives, and alpha-cellulose content than sycamore. A relationship between wood density and alpha-cellulose exists. Black locust yielded a higher mean Klason lignin value, and sycamore yielded a higher mean one-percent sodium hydroxide value hut the difference was not significant at the α = 0.05 level. The effects of site and origin were inconsistent for the different chemical properties. Black locust appears to be a favorable species for a variety of chemical constituents and can be successfully grown under different silvicultural methods.


American sycamore;black locust;alpha-cellulose;bottomland;coppice;extractives;holocellulose;Klason lignin;seedling;upland

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