Table 2.
Physicochemical properties of cookies incorporated with different levels of yacon powder.

Properties Yacon powder level in cookies (%)
0 10 20 30 40
pH 6.46±0.02a 6.36±0.03b 6.31±0.01c 6.25±0.01d 6.22±0.00e
Moisture content (%) 3.61±0.33c 3.76±0.43c 3.93±0.43c 4.47±0.17b 5.05±0.20a
Density (g/mL) 1.50±0.18c 1.37±0.14c 1.26±0.13c 1.09±0.09b 0.98±0.06a
Spread factor 75.01±1.47a 74.98±1.68a 73.39±0.86ab 73.07±1.07b 69.66±1.37c
Hardness (N) 28.38±1.95a 27.51±2.74a 26.26±3.54a 25.45±2.91a 23.63±3.44a
Color L* 80.56±0.56a 63.49±0.39b 54.39±1.11c 50.12±0.73d 46.15±1.26e
a* 4.45±0.50e 7.64±0.42d 10.17±0.78c 11.18±0.36b 12.28±0.50a
b* 32.30±0.83a 30.87±0.53b 30.52±0.51b 29.28±0.46c 27.38±0.48d
Means within the same row without a common letter are significantly different (p < 0.05).