Antioxidant Activity and Inhibitory Effects of Black Rice Leaf on the Proliferation of Human Carcinoma Cells

Table 1

Yields, TPC, and TFC of various subfractions derived from black rice leaf.

Subfraction	Yields; (%)	Total phenolic content; (mg GAE/g DW)	Total flavonoid content; (mg QE/g DW)
Subfraction 1 (Sub1)	^cd	^e	^e
Subfraction 2 (Sub2)	^c	^d	^d
Subfraction 3 (Sub3)	^b	^c	^c
Subfraction 4 (Sub4)	^a	^b	^b
Subfraction 5 (Sub5)	^d	^a	^a

GAE: gallic acid equivalent and QE: quercetin acid equivalent. The results of phenolic and flavonoid contents are expressed as (). The letters ^a-e in the same row represent significant differences ().