. 2020 Sep;58(3):314–324. doi: 10.17113/ftb.58.03.20.6557

Table 3. Physical properties of encapsulated sweet potato peel extracts.

Characteristic	Spray-dried extract	Freeze-dried extract
a_w	(0.089±0.00)^b	(0.021±0.00)^a
w(moisture)/%	(3.73±0.00)^b	(1.17±0.00)^a
((m(water)/m(encapsulate))/(g/100 g)	(7.96±0.01)^b	(6.89±0.00)^a
ρ_b/(g/mL)	(0.45±0.00)^b	(0.34±0.03)^a
ρ_t/(g/mL)	(0.77±0.02)^b	(0.52±0.02)^a
Carr’s index/%	(40.91±0.05)^b	(34.5±1.0)^a
Hausner ratio	(1.69±0.01)^b	(1.53±0.01)^a
D_m/μm d(0.1) d(0.5) d(0.9)	36.99^a 4.89^a 12.53^a 101.60^a	203.60^b 39.52^b 176.71^b 400.99^b
CIE Lab L* a* b* C*	(91.42±0.01)^b (-1.84±0.01)^a (17.75±0.02)^a (5.64±0.01)^a	(82.25±0.03)^a (0.12±0.02)^b (37.06±0.02)^b (8.62±0.02)^b
EE(carotenoids)/%	(60.0±0.2)^b	(9.34±0.03)^a
EE(phenolics)/%	(61.9±0.4)^a	(64.3±0.2)^b

ρ_b and ρ_t are bulk and tap densities, respectively, D_m is volumetric mean diameter, and EE is encapsulation efficiency. Data represent mean value of three replicates±S.D. Mean values with different letters in superscript in rows are significantly different (p<0.05)