7 documents found, page 1 of 1
Chemical diversity of essential oils from Hyptis pectinata (L.) Poit
Feitosa-Alcantara, Rosana Barroso; Arrigoni-Blank, Maria de Fátima; Blank, Arie Fitzgerald; Nogueira, Paulo Cesar de Lima; Sampaio, Taís SantosThe essential oils are secondary metabolites formed by several chemical compounds that confer to these substances great social and economic importance. This diversity of compounds is generally determined by the genetic constitution of the plant, although environmental factors may also influence the type, amount, and concentrations of the compounds present in the essential oil. The aim of this work was to analyz...
Essential oils of Hyptis pectinata chemotypes: isolation, binary mixtures and a...
Feitosa-Alcantara, Rosana Barroso; Bacci, Leandro; Blank, Arie Fitzgerald; Alves, Péricles Barreto; Silva, Indira Morgana de AraújoLeaf-cutting ants are pests of great economic importance due to the damage they cause to agricultural and forest crops. The use of organosynthetic insecticides is the main form of control of these insects. In order to develop safer technology, the objective of this work was to evaluate the formicidal activity of the essential oils of two Hyptis pectinata genotypes (chemotypes) and their major compounds on the l...
Caracterização de chás de genótipos de Lippia gracilis schauer através de perfi...
Prado, Vilma Menezes de Jesus; Moraes, Valéria Regina de Souza; Nogueira, Paulo Cesar de Lima; Cruz, Elizangela Mércia de OliveiraIn order to evaluate the effects of environmental factors on the content of secondary metabolites, the chemical profiles of infusions from leaves of seven genotypes of Lippia gracilis Schauer, sourced from two locations (Sergipe and Bahia state) and collected during different seasons: summer (with and without irrigation) and winter, were determined by HPLC-DAD. The fingerprint chromatograms were analyzed by PCA...
Atividade inseticida de óleos essenciais de Pelargonium graveolens l'Herit e Li...
Niculau, Edenilson dos Santos; Alves, Péricles Barreto; Nogueira, Paulo Cesar de Lima; Moraes, Valéria Regina de Souza; Matos, Andreia PereiraInsecticidal activity of essential oils of Pelargonium graveolens, Lippia alba and compounds geraniol, linalool, 1,8-cineole, limonene, carvone, citral and Azamax® were evaluated against Spodoptera frugiperda. Topical application assay showed essential oil of P. graveolens has acute toxicity against Spodoptera frugiperda larvae (third instar) with LD50 1.13 µg/mg per insect and LD90 2.56 µg/mg per insect. Three...
Chemical composition, antinociceptive, anti-inflammatory and redox properties i...
Rabelo, Alessandra Silva; Serafini, Mairim Russo; Rabelo, Thallita Kelly; Melo, Marcelia Garcez Dória de; Prado, Douglas da Silva; Gelain, Daniel PensMethods: The essential oil from the roots and rhizomes of RMO were obtained by hydrodistillation using a Clevenger apparatus, and analyzed by gas chromatography/mass spectrometry (GC/MS). Here, we evaluated free radical scavenging activities and antioxidant potential of RMO using in vitro assays for scavenging activity against hydroxyl radicals, hydrogen peroxide, superoxide radicals, and nitric oxide. The tota...
Morinda citrifolia linn leaf extract possesses antioxidant activities and reduc...
Serafini, Mairim Russo; Santos, Rodrigo Correia; Guimarães, Adriana Gibara; Santos, João Paulo Almeida dos; Santos, Alan Diego da ConceiçãoThis is a copy of an article published in the Journal of Medicinal Food© 2011 - copyright Mary Ann Liebert, Inc.; Journal of Medicinal Food is available online at: http://online.liebertpub.com; Herbal drugs have been used since ancient times to treat a wide range of diseases. Morinda citrifolia Linn (popularly known as ‘‘Noni’’) has been used in folk medicine by Polynesians for over 2,000 years. It is reported ...
Contribuição a quimica dos compostos volateis e interações com os organismos re...
Nogueira, Paulo Cesar de LimaOrientador : Anita Jocelyne Marsaioli; Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Quimica; Doutorado