Abstract
N solubility, fat and water absorption capacity, bulk density, foam capacity and stability, and emulsification capacity of raw linseed meal (LM) and water-boiled linseed meal (WB) were determined and compared with those of defatted soybean meal (SM). Water boiling reduced the N solubility of linseed meal in water, NaCl, and sodium hexametaphosphate. The water absorption capacity of LM was 345 g compared to 443 g of WB whereas the fat absorption capacity of LM and WB was 236 and 167 g/100 g of flour, resp. On the other hand, SM exhibited lower water (305 g) and fat absorption (167 g) than LM. SM showed higher foam capacity and emulsification capacity than LM. The foam stability of LM was better than that of SM. Heat processing diminished the foam-capacity and stability and emulsification capacity of linseed meal.
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