Fermented sunflower meal and the method for its preparation

Abstract

A new protein product, namely fermented sunflower meal, prepared by the lactic fermentation of de-oiled meal originating from sunflower seeds, and characterized, in comparison with the starting material, by better chemical, physical and nutritional properties, such as increased protein solubility, a lower level of chlorogenic acid, the phenolic pigment responsible for darkening the meal, the absence of fermentable sugars (raffinose), and a higher content of lysin, the main limiting amino acid of the sunflower. The lactic fermentation, which is not spontaneous for sunflower meal in water, as in the case of various cereals, is developed by suitably acidifying an aqueous suspension of meal and allowing it to incubate for some days.

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