AI Article Synopsis
- * The essential oil was tested against various fungal and bacterial strains, showing the strongest activity against Staphylococcus aureus, Enterococcus faecalis, Cryptococcus neoformans, and Candida species.
- * Additionally, the oil demonstrated significant anti-tick properties, inhibiting 94.4% of oviposition in Rhipicephalus (Boophilus) microplus at a concentration of 2.5% during in vivo tests.
Article Abstract
Essential oils from species of the genus Hyptis are well-known for their significant biological properties, including antimicrobial and acaricidal activities. The essential oil from the aerial parts of H. crenata was obtained by hydrodistillation; bomeol (17.8%), 1,8-cineol (15.6%) and p-cimene (7.9%) were characterized by GC-MS as its major constituents. The essential oil was evaluated in vitro for its antimicrobial activities against six fungal and five bacterial strains, by measuring the respective MICs, MFCs and MBCs, using broth microdilution methods. The strongest bactericidal activities were shown against Staphylococcus aureus and Enterococcus faecalis, while the strongest fungicidal activities were against Cryptococcus neoformans, Candida glabrata and Candida tropicalis. The oil was also assessed for its anti-tick properties and, at a concentration of 2.5%, it significantly inhibited in vivo oviposition of engorged females of the cattle tick Rhipicephalus (Boophilus) microplus, using the adult immersion test., with an effectiveness of 94.4%.
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Article Synopsis
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- The oil consists of 20 identified compounds, primarily linalool, and exhibits antifungal properties against Fusarium roseum and antibacterial effects against Pseudomonas savastanoi.
- While it shows moderate antioxidant activity, it differs from typical eucalyptus oils by being a linalool chemotype rather than eucalyptol-dominant.
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