Table 2.
Expansion properties of extruded chestnut fruit.

Extrusion conditions Expansion index Specific length (cm/g) Bulk density(g/cm3)
Moisture content (%) Screw speed (rpm) Melt temp. (°C)
22 200 110 2.87±0.05a1) 47.05±2.33jk 0.32±0.01ghi
120 2.78±0.05bc 39.84±2.52l 0.37±0.01ef
130 2.54±0.06e 51.90±0.58hi 0.32±0.02ghi

250 110 2.75±0.07c 52.46±1.41h 0.29±0.01ij
120 2.83±0.07ab 45.50±1.40k 0.35±0.01efg
130 2.75±0.05c 49.23±2.36ij 0.34±0.02fgh

25 200 110 2.27±0.06g 59.51±1.59g 0.32±0.02ghi
120 2.05±0.04i 71.57±3.89e 0.38±0.01e
130 2.14±0.06h 65.42±2.44f 0.37±0.02ef

250 110 2.64±0.07d 52.96±1.32h 0.28±0.20j
120 2.52±0.02e 54.95±3.28h 0.33±0.01fg
130 2.10±0.05hi 71.50±1.55e 0.36±0.01efg

28 200 110 1.55±0.02f 81.05±2.55bc 0.43±0.03d
120 1.38±0.02l 77.10±5.54d 0.57±0.03b
130 1.58±0.05j 91.23±1.36a 0.45±0.04d

250 110 2.44±0.02f 64.59±1.38f 0.31±0.02hij
120 1.51±0.01k 82.73±2.81b 0.49±0.06c
130 1.02±0.04m 78.27±3.53cd 0.61±0.05a
Value with different superscripts in the same column are significantly different (p<0.05).