Annatto Seeds
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. The effect of the carotenoid bixin and annatto seeds on hematological markers and nephrotoxicity in rats subjected to chronic treatment with cisplatin
ABSTRACT This study assessed the protective effect of the carotenoid bixin and annatto seeds against possible nephrotoxicity induced with a single peritoneal administration of pharmacological cisplatin in male Wistar rats. After 48 h, the blood cell differential count showed a significant reduction in neutrophil counts in rats that received a diet rich in bi
Rev. bras. farmacogn.. Publicado em: 2016-08
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2. Construction of a supercritical fluid extraction (SFE) equipment: validation using annatto and fennel and extract analysis by thin layer chromatography coupled to image
Abstract The present work describes setting up a laboratory unit for supercritical fluid extraction. In addition to its construction, a survey of cost was done to compare the cost of the homemade unit with that of commercial units. The equipment was validated using an extraction of annatto seeds’ oil, and the extraction and fractionation of fennel oil were
Food Sci. Technol. Publicado em: 06/05/2016
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3. Annatto seed residue (Bixa orellana L.): nutritional quality
Considering that annatto seeds are rich in protein, the present work aimed to evaluate the biological quality of this nutrient in the meal residue originating from annatto seed processing. We determined the general composition, mineral levels, amino acid composition and chemical scores, antinutritional factors, and protein quality using biological assays. Th
Food Sci. Technol. Publicado em: 2015-04
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4. Ground annatto seeds (Bixa orellana L.) in sorghum-based commercial layer diets and their effects on performance, egg quality, and yolk pigmentation
Consumer demands for healthy foods have stimulated the research on the use of natural products in animal nutrition. Annatto can be used a pigmentation source to improve yolk color of commercial eggs. This study aimed at evaluating the effects of the inclusion of ground annatto seeds on the performance and egg quality of layers fed sorghum-based diets. A tota
Revista Brasileira de Ciência Avícola. Publicado em: 2010-12
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5. Atividade antibacteriana in vitro de diferentes acessos de Bixa orellana L. (urucum) e sua relação com o teor de bixina presente nas sementes. / Antibacterial activity in vitro of different accessions of Bixa orellana L. (annatto) and its relationship with the content of bixin present in seeds
Através de Testes de Diluição em Sistema de Tubos Múltiplos determinou-se a Intensidade de Atividade de Inibição Bacteriana (IINIB/bacteriostasia) e a Intensidade de Atividade de Inativação Bacteriana (IINAB/bactericidia) de soluções contendo extratos hidroetanólicos e hídricos (decocto e infuso) de três acessos de Bixa orellana L. (urucum) a sa
Publicado em: 2010
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6. Effect of an aqueous extract of annatto (Bixa orellana) seeds on lipid profile and biochemical markers of renal and hepatic function in hipercholesterolemic rats
Extrato de urucum é um corante alimentar natural que é obtido da casca das sementes do urucueiro (Bixa orellana L.). Este é o primeiro trabalho da literatura que mostra a relação entre o extrato aquoso de urucum e sua influência no perfil lipídico de animais. Durante 60 dias, 36 ratos machos Fisher foram divididos em 3 grupos: Grupo C que recebeu uma
Brazilian Archives of Biology and Technology. Publicado em: 2009-12
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7. Extraction of bixin from annatto seeds using supercritical carbon dioxide
The solubility of 93% pure bixin in supercritical carbon dioxide (SC-CO2) and of the bixin present in annatto seeds (Bixa orellana L.) was measured. For the seeds, the measurements were made in a temperature range from 30 to 50ºC and pressure between 10 and 35 MPa and for the pure bixin, at 40ºC from 10 to 35 MPa. The main pigments of annatto seeds are bix
Brazilian Journal of Chemical Engineering. Publicado em: 2008-06
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8. Influência de antibióticos na morfogênese in vitro, transformação genética e isolamento de RNA de urucum (Bixa orellana L.) / Influence of antibiotics on in vitro morphogenesis, genetic transformation and RNA isolation of annatto (Bixa orellana L.)
The manipulation of genes involved in carotenoid biosynthesis in Bixa orellana has been attempted with the objective of generating plants producing high content of a natural natural colorant, bixin, and studying the biosynthetic pathway for the accumulation of this unique carotenoid in annatto seeds. The biotechnology, by means of plant tissue culture techni
Publicado em: 2007
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9. Extraction methods and characterization of bixin and norbixin from annatto seeds (Bixa orellana L.) / Métodos de extração e caracterização de bixina e norbixina em sementes de urucum (Bixa orellana L.)
O presente trabalho visou determinar os melhores solventes na extração dos pigmentos do urucum e os métodos de produção de corantes em pó e em pasta. Ainda, foram avaliados métodos de identificação, quantificação e isolamento destes pigmentos, bem como os fatores que influenciam na reação de saponificação da bixina formando a norbixina e seu s
Publicado em: 2007
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10. Supercritical carbon dioxide extraction of pigments from Bixa orellana seeds (experiments and modeling)
Supercritical CO2 extraction of the pigments from Bixa orellana seeds was carried out in a flow apparatus at a pressure of 200 bar and a temperature of 40 ºC at two fluid flow rates (0.67g/min and 1.12g/min). The efficiency of the extraction was low (only about 1% of the pigment was extracted). The increase in flow rate led to a decrease in pigment recovery
Brazilian Journal of Chemical Engineering. Publicado em: 2006-06
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11. Induction of liver monooxygenases by annatto and bixin in female rats
Annatto or urucum is an orange-yellow dye obtained from Bixa orellana seeds. It has been used as a natural dye in a variety of food products, drugs and cosmetics, and also in Brazilian cuisine as a condiment ('colorau'). Bixin, a carotenoid devoid of provitamin A activity, is the main pigment found in annatto. Some carotenoids (canthaxanthin, astaxanthin and
Brazilian Journal of Medical and Biological Research. Publicado em: 2003-01
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12. Optimization of annatto (Bixa orellana L.) drying in fixed bed
The drying of annatto seeds (Bixa orellana L.), red piave cultivate, was studied in a fixed bed dryer. The best conditions were estimated to minimize the loss of coloring and to obtain final moisture of the seeds in appropriate levels to its conservation and maintenance of quality. The quantification of the influence of entrance variables in the final conten
Brazilian Journal of Chemical Engineering. Publicado em: 2000-12