Levels of Tannins and Flavonoids in Medicinal Plants: Evaluating Bioprospecting Strategies

Table 2

Comparison between the amounts (%) of tannins and flavonoids in a herbal ethnodirected strategy selected from the vegetation of the Caatinga in the state of Pernambuco, northeast Brazil.

Group: indication	Tannins; (average ± standard error)	Flavonoids; (average + standard error)	Proportions of species with high versus low tannin content	Proportions of species with high versus low flavonoid content
Random selection	1.09 ± 1.79^a	0.849 ± 0.91^a	10.00/90.00^a	40.00/60.00^a
Antimicrobial	3.74 ± 4.78^a	0.28 ± 0.17^a	44.44/55.56^b	11.11/88.89^b
Antidiarrheal	2.0 ± 2.37^a	0.94 ± 0.94^a	20.00/80.00^a	40.00/60.00^a
Hypoglycemia and/or antidiabetic	0.55 ± 0.86^a	1.32 ±1.95^a	0.00/100.00^c	33.33/66.67^a

Averages or proportions followed by the same letter in column do not differ at 5% probability of Kruskal-Wallis.