Table 6.

Pearson’s correlation coefficients (r) between total phenolic content (TPC) and DPPH scavenging activity.

Cereals	r
Wheat 1	0.598 *
Winter Barley	0.836 *
Spring Barley	0.735 *
Corn	0.202 ns
Popcorn	0.471 *
Cereals2	0.750 *

¹ Overall five varieties, 2 years, and triplicate extractions (n = 30). ² Overall of 25 cereal varieties, 2 years and triplicate extraction (n = 150). * significant at p < 0.05, ns = non-significant.