Table 2.

Examples of secondary metabolites found in plant species from Minas Gerais (MG) and identified in canga outcrop by Jacobi et al. (2007).

Metabolite class	Example of compounds	Plant species	Reference
Terpenoids	Thymol, myrcene, cymene, terpinene, parthenin, beta-bisabolene	Lippia gracilis, Lantana camara, cabralea canjerana, Copaifera langsdorffii, Lychnophora pinaster, Eremanthus erythropappus	Guzzo et al. (2008), Sarria et al. (2011), Souza et al. (2011), Abreu et al. (2013), de Melo et al. (2013), Ferraz et al. (2013), Pradeep et al. (2013), Silvério et al. (2013), Zimmermam-Franco et al. (2013)
Phenylpropanoids Flavonoids	Catechin, methoxyflavanones, safrol	Myrsine umbellata, Marcetia taxifolia, Tripodanthus acutifolius, Trixis vauthieri, Lychnophora pinaster, Ocotea cf.pulchella	Ribeiro et al. (1997), Guzzo et al. (2008), Soberón et al. (2010), Leite et al. (2012), Abreu et al. (2013), Novaes et al. (2013), Leporatti et al. (2014)
Alkaloids		Psychotria vellosiana	Moraes et al. (2011)
Carotenoids	Lutein	Myrsine umbellata	Novaes et al. (2013)
Others	8-Methoxylapachenol, steroids, grifolin, grifolic acid, piperogalin	Sinningia allagophylla, Lychnophora pinaster, Peperomia gallioides	Langfield et al. (2004), Guzzo et al. (2008), Abreu et al. (2013), Barbosa et al. (2013)