Extraction and study of drying kinetics of sweet potato starch
DOI:
https://doi.org/10.6008/CBPC2237-9290.2018.001.0001Keywords:
Amido, Análises físico-químicas, Modelagem matemáticaAbstract
This work aimed at the extraction of sweet potato starch and the study of drying kinetics, also evaluating their physicochemical characteristics. Drying of the sweet potato was carried out in a forced circulation oven at a temperature of 60, 70 and 80 ° C. To represent the kinetics of drying, we used mathematical models in the literature, the models used were those of Henderson and Pabis, Midilli and Kucuk and Page. The three models under study fit well with the experimental data, so the models of Midilli and Kucuk and Page presenting a coefficient of determination above 0.99. The sweet potato had an average ash value of 0.22%, and a humidity percentage of 4.44%, according to the International Institute of Starches specifications, CNNPA Resolution nº 12 Anvisa / MS.
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