Fig. 4. Sugar yield (g/kg) of pineapple peel and core after pre-treatments under study regardless of the time. Values are means ± SE (n ¼ 60 for B and MW; n ¼ 40 for HPA and HPC). At each bar top, different letters indicate statistically different values according to post-hoc comparison (Tukey's test) at p 0.05.
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