Table 3. Total polyphenolics and total flavonoid contents of Romaine lettuce

sample	Total polyphenol content (mg GAE2))/100 g sample)	Total flavonoid content (mg CHE3))/100 g sample)
TRL1)-1	58.65±1.05b4)	46.08±0.38ab
TRL-2	59.14±0.23ab	45.70±0.10b
TRL-3	60.96±1.17a	46.35±0.13a
F-value	5.290*5)	5.622*

TRL, treated Romaine lettuce.
GAE, gallic acid equivalent.
CHE, (+)-catechin hydrate equivalent.
Values are mean±SD of triplicate determination. Different letters within a column are significantly different (p<0.05).
p<0.05.