highly significantp < .001
The study indicated that acrylamide formation had a highly significant ( p < .001) positive correlation with degree of roast for coffee beans roasted using drum roaster (Table 5 ), whereas the results revealed that acrylamide formation had a significant ( p < .05) correlation with caffeine and no significant ( p > .05) correlation with trigonelline content of the drum roasted coffee beans (Cuong et al., 2014 ).