a and b display net growth of probiotic organisms (L. acidophilus, L. casei, L. paracasei), and concentration of organic acids (lactic and acetic) respectively in customized MRS broth without glucose (cMRS) separately containing freeze dried pineapple pomace powder (), oven dried pineapple pomace powder (), freeze dried pineapple peel powder (), oven dried pineapple peel powder () as a carbohydrate source compared to glucose as positive control () and without carbohydrate as negative control () at 37 °C for 24 h. The monocultures were aseptically inoculated at 1 % (v/v) separately. a,b,c,d,eResults were expressed as means ± standard deviation (n = 3), values with different letters within each organisms a and each acids b were significantly different (P < 0.05)