Table 4. Total phenolic content and antioxidant activity assays (DPPH radical scavenging activity and reducing power) of lotus leaf powder added yogurts during refrigerated storage

Traits	Lotus leaf powder (%)
Traits	Storage period (d)	0%	0.2%	0.5%	1%
TPC (μg GAE/g)	0	17.94±1.31^Bd	23.91±0.71^Bc	32.58±1.67^Cb	47.94±0.23^Ca
	7	23.47±0.50^Ad	27.89±0.67^Ac	37.65±0.24^Bb	58.15±0.55^Ba
	14	25.36±0.48^Ad	28.86±1.71^Ac	44.42±0.87^Ab	61.94±1.68^Aa
DPPH (%)	0	10.07±0.69^Bd	24.73±1.12^Bc	42.13±1.91^Bb	48.81±0.96^Ca
	7	18.41±0.61^Ad	35.37±0.20^Ac	50.05±0.60^Ab	58.37±0.75^Aa
	14	18.96±0.58^Ad	35.11±0.43^Ac	48.02±1.67^Ab	52.34±1.48^Ba
RP	0	0.105±0.009^Bd	0.154±0.014^Bc	0.299±0.035^Bb	0.514±0.008^Ba
	7	0.174±0.008^Ad	0.224±0.021^Ac	0.430±0.007^Ab	0.569±0.016^Aa
	14	0.126±0.027^Bd	0.194±0.0337^ABc	0.388±0.011^Ab	0.554±0.028^ABa

Data are expressed as the means±SD for three replicates.
Different superscripts in the same column (p<0.05).
Different superscripts in the same row (p<0.05).
NS/ns, not significant; TPC, total phenolic content; GAE, gallic acid equivalent; DPPH, 2,2-diphenyl-1-picrylhydrazyl; RP, reducing power.