Characterization, Formulation, and Toxicity of Plant Oils on Duponchelia fovealis Caterpillars Zeller 1847 (Lepidoptera: Crambidae).

This study aimed to determine the chemical composition of ginger Zingiber officinale Roscoe (Zingiberaceae) and soursop Annona muricata Linn (Annonaceae) oils, formulate stable emulsions of these oils separately, as well as neem oil Azadirachta indica A. Juss (Meliaceae), and evaluate the insecticidal activity of these emulsions against Duponchelia fovealis Zeller, 1847 (Lepidoptera: Crambidae). Each stable emulsion contained an oil phase containing ginger, soursop, or neem oil, a fruit polyalcohol-based emulsifier, ethanol, or water.

Chemodiversity of Roscoe rhizome essential oil at different drying times.

Ginger (), a globally distributed plant, is widely used in the industry for its flavourings, seasonings, and beverages. However, maintaining its quality and volatile components during processing has posed a challenge. This study, therefore, aimed to assess the impact of drying time (24, 48, and 72h) in a circulation oven at 40 °C on the chemical composition and yield of fresh and dried ginger.

Citronellal: a natural aldehyde with important properties.

Among the several terpenes existing in nature, Citronellal, a monoterpene aldehyde, deserves to be highlighted for its biological properties that have been pointed out in numerous studies. This work aimed to conduct a literature review on its biological properties. Citronellal is a prominent compound in the essential oils of Cymbopogon genus plants.

Chemodiversity essential oil from three species of (Euphorbiaceae) and assessment of antimicrobial potential.

The genus is known for its various biological properties, which inspired this study to investigate the anti-bacterial pro-perties and chemodiversity of the essential oils of three Croton species: , , and . The essential oils were characterised by gas chromatography (GC-MS) and demonstrated anti-bacterial activity against and using the disc diffusion method. The essential oil composition of showed bicyclogermacrene (16.

Management potentiality of emulsions based on essential oil of and for spider mite: a possible alternative for agroecological control.

, popularly known as spider mite, is a pest that causes several economic losses to crops. Thus, this work evaluated the effect of essential oils from the leaves of and on managing . The chemical compounds present in essential oils were identified by gas chromatography.

effect of alpha-bisabolol and its synthetic derivatives on macrophages, promastigotes, and amastigotes of and .

Cutaneous and visceral leishmaniasis are public health problems in Africa, Asia, Europe, and America. The treatment has a high cost and toxicity. Thus, this work aims to evaluate the leishmanicidal activity of alpha-bisabolol and its three synthetic derivatives, P1, P2, and P3, on the promastigotes and amastigotes and forms.

Aphid control using Yunck essential oil in strawberry crop.

Strawberry is a food rich in bioactive compounds with great antioxidant potential. However, due to the high incidence of pests that affect crop cultivation, phytosanitary management still lacks control methods for agroecological cultivation. Thus, the present research aimed to evaluate the chemical composition and the potential of the essential oil of the leaves of in the control of in laboratory and semi-field conditions.

Fungicide potential of citronella and tea tree essential oils against tomato cultivation's phytopathogenic fungus f. sp. lycopersici and analysis of their chemical composition by GC/MS.

Tomato is one of the most produced and consumed fruits in the world. However, it is a crop that faces several phytosanitary problems, such as fusarium wilt, caused by . Thus, this study aimed to evaluate citronella and melaleuca essential oils potential in the fungus management.

Chemical characterization and evaluation of acaricidal potential of rosemary essential oil and its main compound -pinene on the two-spotted spider mite, .

Two-spotted spider mite causes significant damage to various crops, often requiring synthetic acaricides for their control. However, the frequent use of these products causes several environmental problems. Thus, this work aimed to evaluate the acaricidal action, using the application by fumigation on female adults of of essential oil from the leaves of L.

Phytochemical screening and phytocytotoxic effects of the tropical Myrcia vittoriana (Myrtaceae).

We investigated whether essential oil and aqueous and ethanolic extracts from M. vittoriana leaves have phytotoxic effects on the germination and initial development, and cytogenotoxic effects on the cell cycle, of model plants. The essential oil and extracts of M.

Recent advances and future perspective of essential oils in control Colletotrichum spp.: A sustainable alternative in postharvest treatment of fruits.

The world population growth has raised concerns about food security. Agricultural systems are asked to satisfy a growing demand for food with increasingly limited resources, and simultaneously still must reduce the impacts on the environment. This scenario encourages the search for safe and sustainable production strategies.

Chemotype diversity of Psidium guajava L.

The essential oil of Psidium guajava L. has been studied for pharmacological and industrial purposes, without considering the plant's genotype regarding the heterogeneity of its composition. The present study aimed to characterize the chemotype diversity of the essential oil extracted from the leaves of 22 genotypes of P.

Semisynthetic Phenol Derivatives Obtained from Natural Phenols: Antimicrobial Activity and Molecular Properties.

Semisynthetic phenol derivatives were obtained from the natural phenols: thymol, carvacrol, eugenol, and guaiacol through catalytic oxychlorination, Williamson synthesis, and aromatic Claisen rearrangement. The compounds characterization was carried out by H NMR, C NMR, and mass spectrometry. The natural phenols and their semisynthetic derivatives were tested for their antimicrobial activity against the bacteria: Staphylococcus aureus, Escherichia coli, Listeria innocua, Pseudomonas aeruginosa, Salmonella enterica Typhimurium, Salmonella enterica ssp.

Novel highly selective catalytic oxychlorination of phenols.

The highly selective oxychlorination of various phenols catalyzed by CuCl2 under mild conditions, in which chloride ions are used as chlorinating agents and dioxygen as a final oxidant, has been developed.