. 2020 Jan 28;10:1336. doi: 10.1038/s41598-020-57687-3

Table 5.

Correlation co-efficient for antioxidant leaf pigments, vitamin C, TPC, TFC, TAC (DPPH) and TAC (ABTS⁺) in green morph Amaranthus leafy vegetable.

Traits	Chl b (µg g⁻¹ FW)	Chl ab (µg g⁻¹ FW)	Betacyanin (ng g⁻¹ FW)	Betaxanthin (ng g⁻¹ FW)	Betalain (ng g⁻¹ FW)	Catonenoirds (mg 100 g⁻¹ FW)	Vitamin C (mg 100 g⁻¹ FW)	TPC(GAEµg g⁻¹ FW)	TFC (RE µg g⁻¹ DW)	TAC (DPPH) (TEAC µg g⁻¹ DW)	TAC (ABTS⁺) (TEAC µg g⁻¹ DW)
Chlorophyll a (µg g⁻¹ FW)	0.95**	0.87**	0.76**	0.78**	0.78**	−0.56**	−0.002	0.47**	0.47**	0.68**	0.66**
Chlorophyll b(µg g⁻¹ FW)		0.88**	0.66**	0.65**	0.66**	−0.58**	−0.014	0.49**	0.58**	0.68**	0.64**
Chlorophyll ab (µg g⁻¹ FW)			0.78**	0.74**	0.68**	−0.62**	−0.005	0.58**	0.55**	0.65**	0.63**
Betacyanin (ng g⁻¹ FW)				0.89**	0.85**	−0.79**	−0.106	0.55**	0.56**	0.73**	0.75**
Betaxanthin (ng g⁻¹ FW)					0.98**	−0.65**	−0.123	0.68**	0.59**	0.69**	0.78**
Betalain (ng g⁻¹ FW)						−0.78**	−0.141	0.68**	0.68**	0.78**	0.73**
Catonenoirds (mg 100 g⁻¹ FW)							−0.183	0.54**	0.55**	0.75**	0.85**
Vitamin C (mg 100 g⁻¹ FW)								0.08	0.08	0.08	0.009
TPC (GAE µg g⁻¹ FW)									0.75**	0.66**	0.96**
TFC (RE µg g⁻¹ DW)										0.75**	0.88**
TAC (DPPH) (TEAC µg g⁻¹ DW)											0.94**

Chl a, Chlorophyll a; Chl ab, Chlorophyl ab; TAC, Total antioxidant capacity; TPC, Total polyphenol content; TFC, Total flavonoid content; **Significant at 1% level.