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Controlled-Humidity Air-Drying Enhances C-Phycocyanin Retention and its Antioxidant Properties in Dried <i>Arthrospira (Spirulina) platensis</i> Biomass

Universal Journal of Food Science and Technology | Vol 4, Issue 1

Table 4. DPPH scavengingactivities of C-PCs produced from different dry Spirulina in comparisonwith C-PC reference standard and ascorbic acid.

Preparations	Linear regression	R²	IC₅₀ (µg mL^-1)	AAEAC (µg AAE mg^-1 C-PC)
Ref. std.	y = 0.051x + 15.292	0.998	680.55^g	7.71^a
FD	y = 0.049x + 14.521	0.997	724.06^f	7.24^b
T₁H₁	y = 0.046x + 13.828	0.998	786.35^e	6.67^c
T₁H₂	y = 0.046x + 13.727	0.997	788.54^e	6.65^c
T₁H₃	y = 0.046x + 13.621	0.995	790.85 ^e	6.63^c
T₂H₁	y = 0.045x + 13.372	0.997	813.96 ^d	6.44^cd
T₂H₂	y = 0.044x + 13.223	0.996	835.84 ^cd	6.27^de
T₂H₃	y = 0.044x + 13.058	0.997	839.59 ^cd	6.25^de
T₃H₁	y = 0.043x + 12.723	0.993	866.91 ^bc	6.05^ef
T₃H₂	y = 0.042x + 12.361	0.991	896.17 ^b	5.85^f
T₃H₃	y = 0.040x + 11.834	0.994	954.25 ^a	5.50^g
AA	y = 10.150x - 3.226	0.995	5.24	-

^{a, b}... Different letters in the same column differ significantly (p < 0.05) by the Tukey’s pairwise comparison test.