Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 10
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Antimicrobial effect of Anacardium Occidentale extract and cosmetic formulation development BABT
Gonçalves,Gisele Mara Silva; Gobbo,Juliana.
The objective of this work was to assess the activity of the extract of Anacardium occidentale Staphylococcus epidermidis and S. aureus and then to develop cosmetic formulations from those extracts. These formulations were stable in relation to their pH and rheological behavior, but were gradually darkened when stored for assessment at temperatures between 40 and 60ºC. Thus, even though the extract appeared a promising raw material for use in cosmetic formulations, those compounds might still require adjustments to improve the stability.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anacardium occidentale L; Antimicrobial; Cosmetic; Extract; Rheology.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000600006
Imagem não selecionada

Imprime registro no formato completo
Antioxidant activities of fractions from longan pericarps Ciênc. Tecnol. Aliment.
Yang,Xuena; Yan,Fen; Huang,Shangrong; Fu,Caili.
The antioxidant activities of ethanolic crude extract (LPCE) and its four different solvent sub-fractions (namely, diethyl ether fraction (LPDF), ethyl acetate fraction (LPEF), n-butyl alcohol fraction (LPBF) and residue fraction (LPR)) from longan pericarps were investigated employing various systems including 2,2-diphenyl-1-picrylhydrazyl (DPPH)/ 2,2'-amino-di(2-ethyl-benzothiazoline sulphonic acid-6)ammonium salt (ABTS)/hydroxyl radical scavenging activity, total phenolic content and reducing power. Each extract showed concentration-dependent antioxidant activity. LPEF showed the highest scavenging activity against DPPH, ABTS and hydroxyl radicals with EC50 values of 0.506, 0.228 and 4.489 mg/mL, respectively. LPEF showed the highest reducing power with...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Longan pericarp; Extract; Free radicals; Antioxidant activity.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612014000200018
Imagem não selecionada

Imprime registro no formato completo
Assessment of oxidation of leaves of Ilex paraguariensis (St. Hil) BABT
Molin,Rochele Fernanda; Valduga,Alice Teresa; Di Luccio,Marco; Dartora,Nessana; Cichoski,Alexandre José; Pistore,Mônica; Rigo,Elisandra.
This work aimed to study the oxidation of leaves of Ilex paraguariensis St. Hil, in a process similar to the oxidation of Camellia sinensis, with the purpose of developing new products based on yerba maté. So far, no previous systematic study about the oxidation of yerba maté has been found elsewhere. A Plackett-Burman experimental design was used for the screening of the significant parameters that affected the oxidation. The oxidation was indirectly quantified by following the changes in the product color, water activity, and pH with the time of processing. The factors that most influenced the process were the age of the leaves and the relative humidity of the oxidation chamber. The differences between the treatments were more evident after 3, 6 12 and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Physicochemical parameters; Yerba maté; Leave; Extract; Experimental design.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000200016
Imagem não selecionada

Imprime registro no formato completo
Bioherbicidal Assessment of Aqueous Extracts of Mesquite (Prosopis juliflora) on Weeds Control and Growth, Yield and Quality of Wheat Planta Daninha
SHAH,R.H.; BALOCH,M.S.; KHAN,A.A.; IJAZ,M.; ZUBAIR,M..
ABSTRACT: Two-year field experiments were conducted to investigate the phytotoxicity of mesquite (Prosopis juliflora) on weed control and yield of wheat in 2013-14 and 2014-15. Mesquite aqueous extracts were prepared with 10, 20, 30 and 40% concentration of leaves, stems, and roots and were compared with tap water (control). These experiments were laid out in a completely randomized block design with four replications. All parameters (weed density, fresh weed biomass, dry weed biomass, chlorophyll content, leaf area index, leaf area duration, crop growth rate, net assimilation rate, plant height and number of tillers) were significantly reduced by applying the mesquite extracts. Among different concentrations, the maximum level (40%) of all three plant...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Allelopathy; Extract; Weeds; Wheat yield.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100214
Imagem não selecionada

Imprime registro no formato completo
Efeito do extrato aquoso de leucena na germinação e no desenvolvimento do milho. Repositório Alice
PRATES, H. T.; PAES, J. M. V.; PIRES, N. de M.; PEREIRA FILHO, I. A.; MAGALHAES, P. C..
Foram desenvolvidos bioensaios, na Embrapa-Centro Nacional de Pesquisa de Milho e Sorgo (CNPMS), para avaliar o efeito de extratos aquosos, a frio e a quente, da parte aerea de leucena (Leucaena leucocephala (Lam.) De Wit.), sobre a germinacao e o desenvolvimento das plantas de milho (Ze mays L.). Os extratos foram preparados na concentracao 20% (p/v), e avaliados em solo e papel-germiteste, em casa de vegetacao, e em, papel-filtro em laboratorio. O extrato obtido com agua fria (EF) e aplicado ao solo nao causou nenhum efeito fitotoxico sobre a germinacao e o desenvolvimento das plantas de milho. O extrato obtido com agua quente (EQ), quando aplicado em papel-germiteste ou papel-filtro, causou reducao no comprimento da raiz seminal, mas nao interferiu na...
Tipo: Artigo de periódico Palavras-chave: Maize; Seed; Plant; Extract; Root.; Alelopatia; Comprimento; Extrato; Leucaena; Germinação; Milho; Planta; Raiz; Semente; Zea Mays.; Allelopathy; Germination; Length..
Ano: 2000 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/484086
Imagem não selecionada

Imprime registro no formato completo
Effects of Coriander Essential Oil on the Performance, Blood Characteristics, Intestinal Microbiota and Histological of Broilers Rev. Bras. Ciênc. Avic.
Ghazanfari,S; Mohammadi,Z; Adib Moradi,M.
ABSTRACT Present study was conducted to investigate the effects of the dietary supplementation of coriander oil on broiler performance, blood characteristics, microbiota, and small intestine morphology measurements. A number of one-day-old broiler chickens (Ross 308) were allocated to five treatments, with four replicates according to a completely randomized design (CRD). Birds were offered either a corn-soybean meal basal diet (control), or the basal diet supplemented with 600 mg/kg of a flavophospholipol antibiotic, 100, 200, or 300 mg/kg coriander essential oil. At 42 days of age, two birds per replicate were selected for blood collection, slaughtered, and its intestinal microbiota and morphology were investigated. The results indicated that weight...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alternative growth promoters; Antibiotics; Broiler; Extract; Performance.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000400419
Imagem não selecionada

Imprime registro no formato completo
Evaluation of antimicrobial activity of the endophytic actinomycete R18(6) against multiresistant Gram-negative bacteria Anais da ABC (AABC)
Carvalho,Tiele; Van Der Sand,Sueli.
Endophytic actinomycetes are promising sources of antimicrobial substances. This study evaluates the activity of metabolites produced by the endophytic actinomycete R18(6) against Gram-negative bacteria multiresistant to antimicrobials. R18(6) isolate was grown in submerged cultures under different conditions: carbon source, temperature, pH and incubation time to optimize antimicrobials production. The actinomycete grown in base medium supplemented with 1% glucose, pH 6.5 and incubation at 30 ºC for 96 h with shaking at 100 rpm, exhibited the highest activity against the used Gram-negative bacteria. Minimum inhibitory concentration (MIC) of the crude extract produced by the microorganism varied between 1/32 and 1/256. It had bactericide or bacteriostatic...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Endophytic actinomycetes; Streptomyces; Multiresistant Gram-negative bacteria; Extract.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000100155
Imagem não selecionada

Imprime registro no formato completo
Evaluation of sample extracting methods of FCSM by Lactobacillus acidophilus based on a UPLC-Q-TOF-MS global metabolomics analysis BJM
Wang,Yongqiang; Zhang,Wenju; Nie,Cunxi; Chen,Cheng; Zhang,Xiaoyang; Hu,Jianhe.
Abstract The study of metabolomics requires extracting as many metabolites as possible from a biological sample. This study aimed to determine the optimal method for the extraction of metabolites from solid-state fermented cottonseed meal (FCSM). The UPLC-Q-TOF-MS global metabolomics technology was used to detect the metabolites in FCSM, and the extraction quantity and extraction efficiency of seven different extraction methods, specifically the WA, 50MeOH, 50MeOHB, 50MeCNB, 80MeOHB, 80MeOH and AMF methods were evaluated. The results showed that the number of VIP metabolites extracted by AMF method are 196 and 184 in ESI+ and ESI- mode respectively, it is the largest number of all exacted methods; and the AMF methods also provided a higher extraction...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Metabolomics; Extract; Fermentation; FCSM; Lactobacillus acidophilus; UPLC-Q-TOF-MS.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000200392
Imagem não selecionada

Imprime registro no formato completo
Genotoxic potential of Cotinus coggygria Scop. (Anacardiaceae) stem extract in vivo Genet. Mol. Biol.
Matic,Sanja; Stanic,Snezana; Bogojevic,Desanka; Solujic,Slavica; Grdovic,Nevena; Vidakovic,Melita; Mihailovic,Mirjana.
The intention was to evaluate the possible in vivo genotoxic potential in different cell-types, of a methanol extract obtained from the plant stem of Cotinus coggygria Scop., using the sex-linked recessive lethal (or SLRL) test and alkaline comet assay. The SLRL test, revealed the genotoxic effect of this extract in postmeiotic and premeiotic germ-cell lines. The comet assay was carried out on rat liver and bone marrow at 24 and 72 h after intraperitoneal administration. For genotoxic evaluation, three concentrations of the extract were tested, viz., 500, 1000 and 2000 mg/kg body weight (bw), based on the solubility limit of the extract in saline. Comet tail moment and total scores in the group treated with 500 mg/kg bw, 24 and 72 h after treatment, were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Comet assay; Cotinus coggygria; Extract; Genotoxic effect; SLRL.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000200022
Imagem não selecionada

Imprime registro no formato completo
Performance of broiler chickens supplemented with Mexican oregano oil (Lippia berlandieri Schauer) R. Bras. Zootec.
Vázquez,Ramón Silva; Meléndez,Lorenzo Antonio Durán; Estrada,Eduardo Santellano; Rodríguez Muela,Carlos; Villalobos,Guillermo Villalobos; Zamora,Gerardo Méndez; Hume,Michael E..
The objective of this research was to evaluate the inclusion of two qualities of Mexican oregano oil (MOO) in broiler diets on broiler weight, feed intake, feed efficiency, average daily gain, and water intake. The qualities were MOO1 (4% thymol, 60% carvacrol) and MOO2 (40% thymol, 20% carvacrol). Nine treatments were prepared by the combinations of MOO1 + MOO2 (0, 400, and 800 mg kg−1; added per kg of feed) respectively: 0+0, 0+400, 0+800, 400+0, 400+400, 400+800, 800+0, 800+400, and 800+800. Eighteen chicks per treatment were divided in a completely randomized design into nine cages. Broiler weights were altered by the treatments at 21 d, when 400+400 had the highest weight, and on day 39, when the greatest weight was seen in broilers on treatments...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carvacrol; Extract; Inclusion; Thymol; Water intake.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000800283
Registros recuperados: 10
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional