“…The phytochemical screening of plant menthol extracts showed that it contain flavonoids, terpenoids, phenols, amino acids, alkaloids and tannins, which have antimicrobial properties (Fernandez et al, 1996;Mendoza et al, 1997;Amaral et al, 1998;Cowan, 1999 ;Shaheen et al, 2003;Amarowicz et al, 2008;Chowdhury et al, 2008).…”