Vol. 11, Issue 3 (2022)

Author(s):
Ambrish Ganachari, Police Patil AS, Mallikarjun Reddy, Mathad PF, Hasan Khan and Sharan Bhoopal Reddy

Abstract:
The important physical properties of white and black coloured Chia seeds relevant to the design of processing equipment were determined as per the standard procedure. The important physical properties viz., size, shape, geometric mean diameter, sphericity, aspect ratio, bulk density, true density, porosity and thousand grain weight were determined at moisture content of 11.12% and 10.30% on wet basis, respectively for white and black coloured chia seeds. The mean value of characteristic dimensions, length, width and thickness were 1.982±0.097, 1.274±0.037 and 0.802±0.038 mm for white and 1.860±0.102, 1.220±0.028 and 0.868±0.014 mm for dark seed, respectively. The geometric mean diameter of white seed was 1.264±0.027 mm and 1.253±0.029 mm for black seed. The aspect ratio of white and black coloured seeds was 0.644±0.038 and 0.658±0.043, respectively. The sphericity values were found to be 0.639±0.029 and 0.674±0.024, respectivsssely for white and dark chia seeds predicting the shape as ellipsoid. The average values of bulk density, true density and porosity were 0.661±0.038 g/cc, 0.990±0.010 g/cc and 33.23% for white seeds and 0.742±0.008 g/cc, 1.130±0.020 g/cc and 34.34% for dark seeds, respectively. Thousand grains weight was 1.299±0.057 g for white and 1.338±0.024 g for dark seeds.