Pereskia aculeata Muller (Cactaceae) Leaves: Chemical Composition and Biological Activities.

The aims of this work were to study the chemical composition of the essential oil from the leaves of Pereskia aculeata and to evaluate some biological activities of three leaf extracts. The phenolic content, antioxidant activity, and in vitro antimicrobial and antifungal activities were determined. The methanol extract showed antioxidant activity (EC50 7.

Chemical composition and biological activities of the essential oils from two Pereskia species grown in Brazil.

The chemical composition of the essential oils of Pereskia aculeata Mill. and P. grandifolia Haw.

Elionurus muticus as an alternative source of citral from Pampa biome, Brazil.

Elionurus muticus is a grass from Pampa biome and it is an excellent alternative as natural source of citral in southern Brazil. The essential oil has a high citral level (80%) and presents variability for other important chemical compounds. The present studies indicated its cytotoxic effect against Artemia salina and also suggested its application in the control of pathogenic fungi.

Chemical composition and biological activities of the essential oil from Anredera cordifolia grown in Brazil.

The chemical composition of the essential oil of Anredera cordifolia (Ten.) Steenis (Basellaceae), grown in Brazil, was studied by means of GC and GC-MS analysis. In all, 19 compounds were identified, accounting for 91.