Polyphenols and Antioxidant Activity of Thunbergia laurifolia Infused Tea under Drying Conditions
Table 2
Pearson’s correlation between phytochemical compounds and antioxidant activity of infused teas.
Variables R (R2)
TPC
TFC
ABTS.+
DPPH
TFC
0.668 (0.4464)
ABTS.+
(0.9874)
0.747 (0.1173)
DPPH
−0.606 (0.3676)
(0.9936)
−0.692 (0.4785)
Rosmarinic acid
0.529 (0.2797)
0.985∗ (0.9699)
0.621 (0.3854)
−0.996∗ (0.9912)
Caffeic acid
0.811 (0.657)
0.977∗ (0.9551)
0.871 (0.7589)
−0.957∗ (0.9162)
Gallic acid
0.122 (0.150)
0.82 (0.6728)
0.233 (0.543)
−0.863 (0.7456)
Quercetin
0.679 (0.1605)
(0.9998)
0.757 (0.5727)
−0.996∗ (0.9811)
Catechin
0.335 (0.1121)
−0.477 (0.2279)
0.227 (0.515)
0.546 (0.2985)
Rutin
0.118 (0.139)
0.818 (0.6684)
0.228 (0.522)
−0.861 (0.7415)
CPC
0.553 (0.3063)
0.989∗ (0.9791)
0.643 (0.4141)
(0.9954)
Pearson’s correlation coefficient (R); coefficient of determination (R2). The data in parentheses indicates the R2 value. Significance correlation at 95% confidence level .
