Chemical composition and antibacterial activity of the essential oils fromHelietta apiculataBenth. (Rutaceae)

Abstract

The chemical composition of the essential oil obtained from the leaves of Helietta apiculata collected in different seasons in southern Brazil, was analyzed by gas chromatography (GC) and gas chromatography/mass spectometry (GC/MS). Twenty-eight compounds were identified and limonene was the major compound found for all seasons, 29.1% (spring), 24.8% (summer), 30.2% (autumn) and 28.5% (winter). The essential oil obtained in summer and autumn yielded higher concentrations of monoterpenes, winter and spring yielded the highest concentrations of sesquiterpenes. The essential oil collected in summer and autumn showed higher activity against the bacteria tested, and the oil collected in spring was effective only against E. coli.

Antifungal and Phytotoxic Activities of Isolated Compounds from Helietta parvifolia Stems

“…Helietta parvifolia, commonly known as Baretta, is a tree that belongs to the Rutaceae family. This plant family is renowned for producing a diverse range of chemical constituents, many of which exhibit a wide range of biological activities, including neurodepressant effects [19] and antimicrobial [20] and antiparasitic properties [21]. H. parvifolia is a perennial flowering tree native to the Lower Rio Grande Valley of Texas and northeastern Mexico.…”