Table 3. Antioxidant assays and total phenolic content of Lactarius hatsudake (LH)-fortified yogurt during the cold storage

Antiradical assays Treatment Storage time (d)
1 14 28
AAEDPPH (mg ascorbic acid/g) C 3.36±0.60D 2.95±0.28D 2.65±0.11D
0.5% 5.92±0.44Cb 6.71±0.07Ca 4.60±0.23Cc
1.5% 7.21±0.49Bab 8.50±0.48Ba 5.99±1.01Bb
3.0% 8.93±0.33Ab 10.04±0.12Aa 8.08±0.33Ac
AAEABTS (mg ascorbic acid/g) C 2.36±0.09Da 1.53±0.41Db 1.17±0.23Db
0.5% 6.50±0.73C 6.75±0.44C 6.03±0.10C
1.5% 8.67±0.23Bb 10.38±0.34Ba 7.11±0.27Bc
3.0% 10.58±0.19Ab 11.98±0.29Aa 10.03±0.15Ac
TPC (μg gallic acid/g) C 29.50±4.71D 24.82±0.25D 23.26±2.89D
0.5% 92.20±1.29Cb 103.26±1.81Ca 70.79±2.18Cc
1.5% 124.95±2.78Bb 177.57±1.81Ba 123.39±0.43Bb
3.0% 182.97±2.37Ab 196.43±3.63Aa 181.70±8.69Ab
All values are means±SD (n=3).
Different capital letter superscripts in the same column indicate statistically significant differences p<0.05 between the yogurts fortified with different amounts of LH (one-way analysis of variance followed by Duncan post hoc test).
Different lowercase letter superscripts in the same line indicate statistically significant differences p<0.05 between the yogurts at different storage time (one-way analysis of variance followed by Duncan post hoc test).
C: the 0% fortified yogurt (as the control); 0.5%: 0.5% LH-fortified yogurt; 1.5%: 1.5% LH-fortified yogurt; 3.0%: 3.0% LH-fortified yogurt.
AAE, ascorbic acid equivalent antioxidant capacity; DPPH, 1,1-diphenyl-2-picrylhydrazyl; ABTS, 2,2’-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt; TPC, total phenolic content.