48 h important increases were detected to reach the highest ethanol recorded production of 20% v/v in coconut milk, 22% v/v in pineapple juice and 12% v/v in tuna juice, at 60 h. The maximal rate of ethanol production, denoted as lP, was: 0.096 h1 in coconut milk, 0.1 h1 in tuna juice, 0.1 h1 in pineapple juice.