Abstract
The proteins were extracted from de-oiled sunflower seed cake and protein powder was produced using a pilot-scale spray dryer. Mild-acidic protein extraction and co-extraction of phenolic compounds were employed in order to obtain protein extracts. A pilot-scale spray dryer was used to convert protein extracts into protein powder. Micro-spherical particles were obtained having irregular surface properties. The protein powders showed poor flow behaviour having hausner ratio and angle of repose values around 1,58 and 49°, respectively. They showed poor solubility, sufficient emulsifying and oil-binding capacity. Despite their poor solubility, they had moderate wettability. The denaturation temperature of sunflower protein powder was found around 80 °C from DSC thermogram. FTIR spectrum was found to be very similar to those of soy protein and milk protein extract powders reported previously.
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