Bixin
Mostrando 1-12 de 23 artigos, teses e dissertações.
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1. Understanding Solvent/Bixin Interactions by Raman Spectroscopy
In this work, Raman spectroscopy and density functional theory (DFT) calculations have been used in order to understand the nature of the interaction between the carotenoid bixin and organic solvents with dielectric constant varying from ca. 2 (toluene) to ca. 47 (dimethyl sulfoxide). Raman shifts registered for the main carotenoid marker band, the C=C stret
J. Braz. Chem. Soc.. Publicado em: 2020-07
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2. New microsatellite loci for annatto (Bixa orellana), a source of natural dyes from Brazilian Amazonia
Abstract Annatto (Bixa orellana) is a tropical crop native to the Americas with Amazonia as the likely center of origin of domestication. Annatto is important because it produces the dye bixin, which is widely used in the pharmaceutical, food, cosmetic and textile industries. A total of 32 microsatellite loci were isolated from a microsatellite-enriched geno
Crop Breed. Appl. Biotechnol.. Publicado em: 2018-03
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3. 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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4. Indução do sistema citocromo P450 em linhagens de hepatoma humano para utilização como modelo in vitro no desenvolvimento de fármacos / Induction of cytochrome P450 system in human hepatoma cell lines for using as in vitro model in drug development
In the early development stage of the new drugs, the pharmacological and toxicological properties are critical to define the potential use of the candidate drug. During this stage, several in vitro models systems are employed, including human hepatoma cell lines. However, the main limitation of the use of cell lines as in vitro model is the low expression le
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/01/2012
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5. Avaliação das propriedades antigenotóxicas e antioxidantes do flavonóide quercetina e dos carotenóides bixina e norbixina contra os danos no material genético e distúrbios do estado redox causados pelo cloreto de mercúrio e metilmercúrio, in vitro e in vivo / Evaluation of antigenotoxic and antioxidant properties of the flavonoid quercetin and of the carotenoid bixin and norbixin against DNA-damage and alterations of redox status induced by mercury chloride and methylmercury, in vitro and in vivo
Mercury (Hg) is one of the most hazardous metals in the environment and the major process responsible for its toxicity is oxidative damage; its organic form methylmercury (MeHg) presents the highest toxicity. The main way of exposition to Hg is through inhalation by workers occupationally exposed in several industries and/or through consumption of fishes and
Publicado em: 2011
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6. Ação antioxidante de compostos bioativos do urucum - bixina
O urucum (Bixa Orellana L.), planta arbustiva da família Bixaceae, é uma cultura que vem conquistando cada vez mais importância econômica, uma vez que do pericarpo da semente se extrai um corante natural, constituído por carotenóides, com predominância da bixina. A presença na dieta de compostos como os carotenóides podem contribuir para minimizar o
Publicado em: 2011
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7. 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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8. Microcapsulas de bixina : obtenção, aplicação e estudos de fotodegradação em sistemas-modelo / Microcapsules of bixin : application and photodegradation studies in model-systems
A bixina foi extraída de sementes de urucum e purificada através de sucessivas cristalizações. A seguir a bixina foi encapsulada por atomização, utilizando-se como materiais de parede diferentes misturas com goma arábica (GA), maltodextrina 20 dextrose equivalente (MD) e sacarose (Sac), com ou sem o emulsificante Tween 80. Todas as soluções de mater
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/04/2009
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9. AVALIAÇÃO DE PARÂMETROS BIOQUÍMICOS NUTRICIONAIS E DO ESTRESSE OXIDATIVO EM RATOS TRATADOS COM EXTRATO OLEOSO DE BIXINA (P.A. LIPO 8%)
The annato seeds extract used as a food colour has also been described by the scientific community by its hypocholesterolemic effect. Thus this work aimed at assessing in rats the effect of the administration of an oil extract containing 8% bixin on the lipid profile, antioxidant defenses and markers of hepatic and renal functions. Three experiments were con
Publicado em: 2009
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10. ObtenÃÃo, caracterizaÃÃo e avaliaÃÃo da estabilidade de pigmentos naturais microencapsulados / Retrieval, characterization and evaluation of stability of microencapsulated natural pigments
Atualmente, ocorre um crescimento mundial da preferÃncia dos consumidores pelos alimentos que contÃm ingredientes naturais. Em relaÃÃo aos pigmentos, ainda hà certa dificuldade na utilizaÃÃo de corantes naturais na indÃstria alimentÃcia, pois estes apresentam menor estabilidade que os corantes sintÃticos. Com o objetivo de aumentar a estabilidade e
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/02/2008
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11. 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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12. Inclusion of bixin, curcumin and betanin in cyclodextrin for application in food industry / Inclusão de bixina, curcumina e betanina em ciclodextrina para aplicação na industria de alimentos
The food industry has grown significantly in recent years, and when observing any type of food, it is clear that the visual impact caused by its color is more important than that caused by other factors. This attribute is one of the most important in the commercialization of foods and constitutes a criterion for the acceptance or non-acceptance of the produc
Publicado em: 2008