A “Novel” Protocol for the Analysis of Hydroxycinnamic Acids in Leaf Tissue of Chicory (Cichorium intybus L., Asteraceae)

Table 2

ANOVA of caftaric, chlorogenic, and chicoric acid contents estimations of 24 chicory leaves extracted by 4 different testers using the “novel” method.

Variables and source of variation	Degree of freedom	Mean square	F-ratio	P value
Caftaric acid
Tester	3	0.005	2.67	0.054
Leaf	23	0.096	49.63	<0.001
Error	68	0.002
Chlorogenic acid
Tester	3	0.004	0.266	0.850
Leaf	23	0.376	23.11	<0.001
Error	68	0.016
Chicoric acid
Tester	3	0.005	0.869	0.461
Leaf	23	0.118	21.75	<0.001
Error	68	0.005