Results: 30

Extraction of geraniol from palmarosa oil using hydrotropic solvents

The extraction of geraniol from palmarosa oil using hydrotropic solvents was investigated. Palmarosa oil possesses an appealing rose aroma and properties like anti - inflammatory, antifungal, and antioxidant due to the presence of geraniol. The extraction of geraniol f...

Toxicity and larvicidal activity on Aedes aegypti of citronella essential oil submitted to enzymatic esterification

Braz. j. biol; 83 (), 2023
Abstract The essential oil of citronella (Cymbopogon winterianus) has several biological activities, among them the insect repellent action. Some studies showed that cinnamic acid esters can be applied as natural pesticides, insecticides and fungicides. In this context, the objective of the present work ...

Effect of polycaprolactone nanocapsules loaded with essential oils on biofilm formation by Staphylococcus aureus strains isolated from bovine mastitis cases

Abstract Bovine infectious mastitis is largely resistant to antibacterial treatment, mainly due to mechanisms of bacterial resistance in the biofilms formed by Staphylococcus aureus. Melaleuca (MEO) and citronella essential oils (CEO) are promising agents for reducing or eliminating biofilms. Free melale...

Aplicações terapêuticas do Cymbopogon citratus (capim-limão) na odontologia: uma revisão de literatura integrativa

Introdução: O Cymbopogon citratus (capim-limão) é uma espécie herbácea pertencente à família Poaceae, que engloba aproximadamente 500 gêneros e 8.000 espécies. Objetivos: Analisar as evidências científicas disponíveis sobre as aplicações terapêuticas de Cymbopogon citratus (capim-limão) ...

Antibacterial potential of essential oils against planktonic and sessile cells of Escherichia coli isolated from diarrhea cases in swine

Escherichia coli is a pathogen associated with infections in piglets in the post-weaning phase, its pathogenicity is related to the animal's susceptibility to bacterial enterotoxins. The objective of the present study was to determine the EOs activity against E. colistrain, in the form planktonic and se...

The antioxidant activity of lemongrass leaves extract against fibroblasts oxidative stress

Braz. dent. sci; 25 (4), 2022
Objective : The purpose of this research is to assess the antioxidant activity of lemongrass leaves extract in terms of lowering ROS generation and its effect on the viability and proliferation of fibroblasts under oxidative stress. Material and Methods: The antioxidant activity was measured using the ...

Avaliação in vitro de formulações do óleo essencial de citronela (Cymbopogon nardus) sobre propriedades biológicas, físicas e mecânicas de resina acrílica para prótese dentária

O controle de formação de biofilme deve ser promovido por meio de técnicas diárias de higienização, sendo uma delas o uso de soluções de desinfecção. Dentre as soluções químicas comercialmente disponíveis, algumas podem ocasionar efeitos adversos quando utilizadas em longo prazo. Dessa form...

Using Citronella to Protect Bees (honeybee Apis mellifera L. ) from certain Insecticides and Their Nano Formulations

Braz. j. biol; 81 (4), 2021
Abstract Experiments were performed investigating citronella (Cymbopogon winterianus Jowitt) as a repellent to honeybee Apis mellifera (L.) (Hymenoptera: Apidae) in Egypt, it was conducted in laboratory in the Department of Entomology and Pesticides Science, Faculty of Agriculture, Cairo University, to c...

Influence of agricultural extension activities on tick control among cattle on family dairy farms in the southeast Brazil

Arq. Inst. Biol; 88 (), 2021
The aim of the present study was to evaluate the resistance of tick populations on 16 family farms that were members of the agricultural producers’ cooperative of the São Pedro region of the state of São Paulo (COOPAMSP). Bioassays were conducted on nine commercial products in 2018 and 2019. Their ac...

Effects of essential oils on native and recombinant acetylcholinesterases of Rhipicephalus microplus

Abstract This study reports the action of essential oils (EO) from five plants on the activity of native and recombinant acetylcholinesterases (AChE) from Rhipicephalus microplus. Enzyme activity of native susceptible AChE extract (S.AChE), native resistant AChE extract (R.AChE), and recombinant enzyme (...