Fig. 1

The plant samples used in the study, a Camellia sinensis, b Guazuma ulmifolia, c Catharanthus roseus, d Cassia auriculata, e Andrographis paniculata, f Annona muricata, g Asparagus racemosus, h Calophyllum inophyllum, i Aegles marmelos, j Justicia gendarussa, k Cinnamomum aromaticum, l Piper nigrum