11 documents found, page 1 of 2
Essential oils of Lippia gracilis and Lippia sidoides chemotypes and their majo...
Melo, Juliana Oliveira de; Blank, Arie Fitzgerald; Nunes, Rogéria de Souza; Alves, Péricles Barreto; Arrigoni-Blank, Maria de FátimaThe aim of this work was to evaluate the antifungal activity of essential oils (EOs) of Lippia gracilis and Lippia sidoides accessions, their major compounds and nanoemulsions. Nanoemulsions with 18% of EO or major compound were produced by spontaneous emulsification method. The EO of two L. gracilis accessions (LGRA-106 and LGRA-109) and two L. sidoides accessions (LSID-102 and LSID-104) were extracted by hydr...
Antifungal activity of essential oils of Myrcia ovata chemotypes and their majo...
Sampaio, Taís Santos; Blank, Arie Fitzgerald; Gagliardi, Paulo Roberto; Wisniewski Jr, Alberto; Arrigoni-Blank, Maria de FátimaThis work evaluated the antifungal activity of essential oils of Myrcia ovata chemotypes (MYRO-175, MYRO-156, MYRO-154, MYRO-165, and MYRO-015) and their major compounds (linalool, geraniol, citral, and (E)-nerolidol) on the phytopathogenic fungi Fusarium pallidoroseum (which causes melon postharvest rot) and Colletotrichum musae (which causes anthracnose in banana). The essential oils were obtained by hydrodis...
In vitro antifungal activity of Myrcia ovata essential oils and their major com...
White, Larissa Alves Secundo; Blank, Arie Fitzgerald; Gagliardi, Paulo Roberto; Arrigoni-Blank, Maria de Fátima; Nizio, Daniela Aparecida de CastroMyrcia ovata, an endemic species to the Brazilian Atlantic Forest, presents antifungal properties. The phytopathogens Colletotrichum acutatum, Plenodomus destruens, and Thielaviopsis paradoxa are responsible for the diseases citrus postbloom fruit drop, sweet potato foot rot, and coconut stem bleeding, respectively. The antifungal activity of the essential oils of five M. ovata chemotypes (MYRO-159, nerolic aci...
Content and chemical composition of the essential oil of Myrcia lundiana Kiaers...
Alves, Mércia Freitas; Blank, Arie Fitzgerald; Andrade, Thiago Matos; Nizio, Daniela Aparecida de Castro; Sampaio, Taís SantosThis study aimed to evaluate the effect of the leaves drying time on the content and chemical composition of the essential oil of M. lundiana. Treatments consisted of drying times of 0, 1, 2, 3, 4, 5, 6, 8, and 10 days, at 40o C, in a forced-air-circulation oven. Essential oils were obtained by hydrodistillation using the Clevenger apparatus, and chemical composition analysis was performed by GC-MS/FID. The dry...
Distillation methods affect the chemical composition of Varronia curassavica Ja...
Nizio, Daniela Aparecida de Castro; Blank, Arie Fitzgerald; Sampaio, Taís Santos; Brito, Fabiany de Andrade; Andrade, Thiago MatosThe objective of this work was to evaluate the chemical composition of essential oil from Varronia curassavica Jacq. obtained by microwave (MI) and hydrodistillation (HD) extraction methods. The MI method tested three powers (500, 600, and 700W), three distillation times (20, 30, and 40 min.), and three water volumes (0, 25, and 50 mL per sample). The HD method tested three distillation times (100, 120, and 140...
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 Myrcia lundiana Kiaersk and their major compounds show differ...
Alves, Mércia Freitas; Blank, Arie Fitzgerald; Gagliardi, Paulo Roberto; Arrigoni-Blank, Maria de Fátima; Nizio, Daniela Aparecida de CastroThe present study evaluated the antifungal activity of the essential oils of chemotypes of Myrcia lundiana and their major compounds on the fungi Fusarium pallidoroseum, Fusarium solani, and Colletotrichum musae. The essential oils were obtained by hydrodistillation and analyzed by GCMS/FID. For the evaluation of the antifungal activity, the essential oils and the major compounds were tested at the concentratio...
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...
Genetic diversity of native populations of Croton tetradenius Baill. using ISSR...
Almeida-Pereira, Camila Santos; Muniz, Ana Veruska Cruz da Silva; Alves, Rodrigo Pereira; Feitosa-Alcantara, Rosana BarrosoBrazil has about 300 Croton species in different types of vegetation. Croton tetradenius Baill., which is endemic to the Northeast region and predominant in the Caatinga vegetation, stands out among the several species of this genus. Considering the importance of knowing the genetic variability of a species, the objective of this study was to analyze the genetic diversity of the genotypes of natural populations...
Analysis of genetic diversity of a native population of Myrcia lundiana Kiaersk...
Alves, Mercia Freitas; Nizio, Daniela Aparecida de Castro; Brito, Fabiany de Andrade; Sampaio, Taís Santos; Muniz, Ana Veruska Cruz da SilvaMyrcia lundiana Kiaersk. is a tree of the family Myrtaceae found in tropical and subtropical areas of the southern hemisphere that produces essential oil. The aim of this study was to characterize the genetic diversity of M. lundiana plants from a native population of Parque Nacional de Itabaiana, using inter-simple sequence repeat molecular markers. Thirty-five primers were tested, 20 of which were polymorphic...