Physicochemical Contents, Antioxidant Activities, and Acute Toxicity Assessment of Selenium-Enriched Chinese Kale (Brassica oleracea var. alboglabra L.) Seedlings

Table 3

Correlation coefficients (r) between difference of Se-bioaccessibility, total Se contents, and antioxidant capacity methods.

	PC	Se-bio	TSeC	TPC	TFC	DPPH	ABTS	FRAP
PC	1	0.89	0.95	0.95	0.79	−0.91	−0.93	0.98
Se-bio	—	1	0.98	0.98	0.73	−0.96	−0.92	0.95
TSeC	—	—	1	0.99	0.72	−0.99	−0.93	0.98
TPC	—	—	—	1	0.73	−0.99	−0.91	0.99
TFC	—	—	—	—	1	−0.71	−0.85	0.78
DPPH	—	—	—	—	—	1	0.89	−0.97
ABTS	—	—	—	—	—	—	1	−0.94
FRAP	—	—	—	—	—	—	—	1

Significant model difference at . Significant model difference at . PC = protein contents; Se-bio = Se bioaccessibility; TSeC = total Se contents; TPC = total polyphenol contents; TFC = total flavonoid contents.