| Autor: |
Loyola Arenas, Keila Sarin, Cruz Y Victoria, Maria Teresa, Vizcarra Mendoza, Mario Gonzalo, Martínez Vera, Carlos, Anaya Sosa, Irasema |
| Předmět: |
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| Zdroj: |
International Journal of Food Science & Technology; Jun2016, Vol. 51 Issue 6, p1457-1464, 8p |
| Abstrakt: |
An agitated fluidised bed dryer was employed to dry lixiviated roselle ( Hibiscus sabdariffa L.) calyxes. The effects of operational drying variables on the chemical attributes such as the retention of monomeric anthocyanins ( MA), phenolic compounds, polymeric colour, antioxidant activity and drying rate were analysed. Drying curves showed only decreasing falling rate period. To determine the kinetic parameters, the drying data were fitted to a Page's model, based on the moisture content ratio vs. the drying time; the k values ranged from 1.58 × 10−5 to 6.28 × 10−2 s−1. The different drying conditions showed significant differences in the chemical parameters. When processing wet feeds, as lixiviated roselle calyxes, the mechanical assisted fluidisation can be considered as an innovative concept. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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