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Ciência e Tecnologia de Alimentos 2017, 37 1

Author: Gökçen IZLI

Source: http://www.redalyc.org/articulo.oa?id=395949992023


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Ciência e Tecnologia de Alimentos ISSN: 0101-2061 revista@sbcta.org.br Sociedade Brasileira de Ciência e Tecnologia de Alimentos Brasil IZLI, Gökçen Total phenolics, antioxidant capacity, colour and drying characteristics of date fruit dried with different methods Ciência e Tecnologia de Alimentos, vol.
37, núm.
1, enero-marzo, 2017, pp.
139-147 Sociedade Brasileira de Ciência e Tecnologia de Alimentos Campinas, Brasil Available in: http:--www.redalyc.org-articulo.oa?id=395949992023 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative a Food Science and Technology ISSN 0101-2061 DDOI: http:--dx.doi.org-10.1590-1678-457X.14516 Total phenolics, antioxidant capacity, colour and drying characteristics of date fruit dried with different methods Gökçen İZLİ1* Abstract Date slices were dried with the three drying methods convective (60, 70 and 80 °C), microwave (120 W) and freeze drying to determine drying characteristics and to compare the dried fruit quality.
All colour parameters changed depending on the drying method and colours closest to the fresh sample were obtained with freeze drying.
It is interesting to note that the total phenolic content and antioxidant capacity in each sample rose when looked at in relation to the fresh sample.
In particular, microwave-dried samples were recorded as having the highest total phenolic content and the highest antioxidant capacity. To explain the drying kinetics of the date slices, nine thin-layer drying models were also attempted.
Based on statistical tests, the model developed by Midilli et al.
model was found to be the best model for convective and microwave drying, but the Two Term model was the best for freeze drying.
This study shows that microwave drying can produce high ...





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