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. 2020 Aug 17;58(6):2068–2077. doi: 10.1007/s13197-020-04715-9

Table 2.

Physico-chemical properties of powder samples

Properties measured OD-SBP FD-SBP SD-SBP
Moisture (g/100 g) 1.40 ± 0.12b 5.01 ± 0.85a 1.31 ± 0.18b
Ash (g/100 g) 0.18 ± 0.04b 0.46 ± 0.09a 0.39 ± 0.08a
Protein (g/100 g) 4.01 ± 0.22a 3.46 ± 0.34a 1.82 ± 0.12b
Total dietary fibre (g/100 g) 14.0 ± 1.51a 12.4 ± 2.42a 5.55 ± 0.65b
Total reducing sugar (g/100 g) 78.9 ± 3.42b 78.5 ± 2.57b 90.2 ± 2.78a
Total phenolic content (mmol GAE/g) 192 ± 26.9b 466 ± 52.7a 236 ± 22.5ab
Antioxidant capacity (% DPPH Inhibition) 98.7 ± 0.38a 98.8 ± 0.07a 98.7 ± 0.01a
Solubility (%) 70.0 ± 2.04bc 75.4 ± 3.45b 93.7 ± 2.65a
 L* 54.4 ± 4.44b 83.3 ± 2.70a 78.6 ± 5.57ab
 a* 5.35 ± 0.63b − 3.84 ± 0.24c 7.25 ± 1.32a
 b* 22.9 ± 2.61a 14.1 ± 1.30b 13.1 ± 1.72bc
Bulk density 0.39 ± 0.05a 0.35 ± 0.04b 0.39 ± 0.02ab
Tapped density (kg/m3) 0.65 ± 0.07b 0.56 ± 0.07c 0.79 ± 0.06a
Angle of repose 32° 32° 47°
Housner Ratio 1.64 ± 0.08b 1.63 ± 0.09b 2.04 ± 0.06a

SD-SBP spray-dried sugar beet powder, FD-SBP freeze dried sugar beet powder, OD-SBP oven dried sugar beet powder, GAE gallic acid equivalent

L* (0 black, 100 white), a* (− green, + red), b* (− blue, + yellow)

Columns with different letters indicate statistically significant difference (p < 0.05)