Three independent replicates were used for each treatment.
Analysis of variance (ANOVA) was calculated for the average final
cumulative percent of carbon loss for each of the studies. Comparisons
for all pairs of final cumulative biodegradation means
were performed using TukeyeKramer HSD analysis. All conclusions
were based on a significant difference level of a ¼ 0.05. The statistical
analyses were performed using JMP statistical program
version 9 (SAS Institute Inc., SAS Campus Drive, NC, U.S.).