Wood polymer samples (1.00 mL) were pipetted into Teflon test tubes and made up to a final volume of 3.0 mL with orcinol reagent. During the orcinol reagent addition, solutions were cooled with cold water. The solution was then placed in an 80 °C water bath for 15 min, then allowed to cool to room temperature Sample absorbance was measured with a Shimadzu UV-Vis 160 at 540 nm immediately after cooling. Glucose standards and blank were treated in the same manner as the samples.