Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Ciencia e Investigación Agraria (1) Ciência e Agrotecnologia (1) Autor Giordano,Ady (2) Montenegro,Gloria (2) Bridi,Raquel (1) Gómez,Miguel (1) Larena,Arturo (1) Pizarro,Paula Núñez (1) Sandoval,María Ignacia (1) Velásquez,Patricia (1) Mais... Palavra-chave Ash (1) Crude fiber (1) Food analysis. (1) Goldfish (1) Kjeldahl (1) Pesticide residues (1) Phenol-sulfuric method (1) QuEChERS (1) Total phenolic content (1) Mais... Tipo do documento Info:eu-repo/semantics/article (1) Journal article (1) Ano 2018 (1) 2017 (1) País Brazil (1) Chile (1) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última LC-MS/MS analysis of neonicotinoid insecticides: Residue findings in chilean honeys Ciência e Agrotecnologia Bridi,Raquel; Larena,Arturo; Pizarro,Paula Núñez; Giordano,Ady; Montenegro,Gloria. ABSTRACT Neonicotinoids are a relatively new generation of insecticides that have been used for control of pests such as aphids, leafhoppers and whiteflies. This paper presents for the first time a determination of residues of four neonicotinoid insecticides (acetamiprid, thiamethoxam, thiacloprid and imidacloprid) in Chilean honey using QuEChERS extraction and UHPLC-MS/MS analysis. The limits of detection and quantification found for all analytes ranging from 0.34 to 1.43 μg kg-1 and from 0.30 to 4.76 μg kg-1, respectively. The extraction using QuEChERS method provided recoveries over 79% and the precision showed coefficient of variation lower than 20%. These data are in agreement with the international criteria that recommend general recovery limits of... Tipo: Info:eu-repo/semantics/article Palavras-chave: QuEChERS; Pesticide residues; Food analysis.. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542018000100051 Nutritíonal Composition and Polyphenolic Content of Edible Peumus boldus Mol. Fruits Ciencia e Investigación Agraria Velásquez,Patricia; Sandoval,María Ignacia; Giordano,Ady; Gómez,Miguel; Montenegro,Gloria. Peumus boldus is an endemic Chilean tree whose edible fruit lack a history of scientific research. The aim of this study was to determine its nutritional composition (moisture, ash, crude fiber, proteins, carbohydrates and lipids) and polyphenolic content (total phenolic content, HPLC-DAD, HPLC-MS/MS analysis) at different stages of development. The results show that the fruit decreased in ash, crude fiber and total phenolic content throughout its development, while its carbohydrate and protein content increased. An increase in phenolic molecules such as catechin and epicatechin was also observed. This is the first report on the nutritional composition and phenolic content of Peumus boldus Mol. fruits. Tipo: Journal article Palavras-chave: Ash; Crude fiber; Kjeldahl; Goldfish; Phenol-sulfuric method; Total phenolic content. Ano: 2017 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202017000100007 Registros recuperados: 2 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