In the present paper, we analyze the past, present and future of medicinal plants, both as potential antimicrobial crude drugs as well as a source for natural compounds that act as new anti-infection agents. In the past few decades, the search for new anti-infection agents has antifungal activity of medicinal plants pdf many research groups in the field of ethnopharmacology. 1995 and 2004, this number more than doubled to 307.

In the studies themselves one finds a wide range of criteria. Many focus on determining the antimicrobial activity of plant extracts found in folk medicine, essential oils or isolated compounds such as alkaloids, flavonoids, sesquiterpene lactones, diterpenes, triterpenes or naphtoquinones, among others. Some of these compounds were isolated or obtained by bio-guided isolation after previously detecting antimicrobial activity on the part of the plant. Some general considerations must be established for the study of the antimicrobial activity of plant extracts, essential oils and the compounds isolated from them.

Of utmost relevance is the definition of common parameters, such as plant material, techniques employed, growth medium and microorganisms tested. Check if you have access through your login credentials or your institution. Fifty medicinal plants belonging to 26 families were studied for their antimicrobial activity. About 22 plant extracts from 15 families exhibited activity against both Gram-positive and Gram-negative bacteria. Fourteen plants belonging to 11 families did not show activity against any of the bacteria tested. Only nine plant extracts showed antifungal activity. Eight plant extracts belonging to seven families exhibited both antibacterial and antifungal activity.

2001 Elsevier Science Ireland Ltd. In the present paper, we analyze the past, present and future of medicinal plants, both as potential antimicrobial crude drugs as well as a source for natural compounds that act as new anti-infection agents. In the past few decades, the search for new anti-infection agents has occupied many research groups in the field of ethnopharmacology. 1995 and 2004, this number more than doubled to 307.

In the studies themselves one finds a wide range of criteria. Many focus on determining the antimicrobial activity of plant extracts found in folk medicine, essential oils or isolated compounds such as alkaloids, flavonoids, sesquiterpene lactones, diterpenes, triterpenes or naphtoquinones, among others. Some of these compounds were isolated or obtained by bio-guided isolation after previously detecting antimicrobial activity on the part of the plant. Some general considerations must be established for the study of the antimicrobial activity of plant extracts, essential oils and the compounds isolated from them.

Of utmost relevance is the definition of common parameters, such as plant material, techniques employed, growth medium and microorganisms tested. Check if you have access through your login credentials or your institution. Fifty medicinal plants belonging to 26 families were studied for their antimicrobial activity. About 22 plant extracts from 15 families exhibited activity against both Gram-positive and Gram-negative bacteria. Fourteen plants belonging to 11 families did not show activity against any of the bacteria tested. Only nine plant extracts showed antifungal activity. Eight plant extracts belonging to seven families exhibited both antibacterial and antifungal activity.

2001 Elsevier Science Ireland Ltd. In the present paper, we analyze the past, present and future of medicinal plants, both as potential antimicrobial crude drugs as well as a source for natural compounds that act as new anti-infection agents. In the past few decades, the search for new anti-infection agents has occupied many research groups in the field of ethnopharmacology. 1995 and 2004, this number more than doubled to 307.