2.2.3.2. Bulk density measurements. Ten gram of the different flours
were put into 100 ml graduated cylinder and was tapped several
times on the laboratory bank till the sample stopped settling and
values were calculated as g/cm3 (Okaka & Potter, 1979).
2.2.3.3. Swelling capacity. 100 mg of the different flours were
hydrated in a measuring cylinder with 10 ml distilled water at
room temperature. After 18 h, the volume (ml) occupied was registered
and swelling capacity (SC) was calculated as volume (ml)/
g of original sample (Mateos-Aparicio et al., 2010).
2.2.3.4. Emulsifying capacity. 1 g flour sample, 10 ml distilled water
and 10 ml sunflower oil were prepared and mixed for 1 min using a
Moulinex homogenizer at 10,000 rpm to obtain an emulsion. The
emulsion was centrifuged at 2000g for 5 min. The ratio of the
height of emulsion layer to the total height of the mixture was calculated
as emulsion capacity in percentage (Yasumatsu et al.,
1972).