Canthaxanthin
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. EFFECT OF ANTIOXIDANT SUPPLEMENTATION IN DIETS OF ROOSTERS DURING THE POST-PEAK PHASE ON REPRODUCTION AND PRODUCTION CHARACTERISTICS OF OFFSPRING
Resumo O objetivo foi avaliar o efeito da suplementação de antioxidantes em dietas para reprodutores machos de frangos de corte na fase pós-pico sobre características reprodutivas e muscular da progênie. O experimento foi conduzido no matrizeiro de uma agroindústria local. Os tratamentos consistiram em uma dieta controle e uma dieta suplementada com bl
Ciênc. anim. bras.. Publicado em: 24/10/2019
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2. COLORAÇÃO DE GEMA DE OVO DE POEDEIRAS COMERCIAIS RECEBENDO PIGMENTANTE COMERCIAL NA RAÇÃO
Resumo Objetivou-se avaliar a pigmentação de gemas de ovos de poedeiras alimentadas com produto comercial (PC), à base de cantaxantina e óleo de sementes de urucum. Utilizaram-se 240 poedeiras comerciais com 55 semanas de idade, que receberam cinco diferentes rações: controle (RC) à base de milho e farelo de soja, RC com dois níveis (70 e 140 ppm) do
Ciênc. anim. bras.. Publicado em: 10/06/2019
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3. The Effects of Different Types of Antioxidants (Se, Vitamin E and Carotenoids) in Broiler Diets on the Growth Performance, Skin Pigmentation and Liver and Plasma Antioxidant Concentrations
Abstract This study investigated the effects of the addition of different antioxidants to broiler diets on their live performance, liver antioxidant composition and concentrations, immune response, and meat and skin color. A total of 945 three-day-old Ross 308 broiler chicks of both genders were randomly allocated to one of nine dietary treatments (n=105), w
Rev. Bras. Cienc. Avic.. Publicado em: 2016-03
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4. Canthaxanthin biosynthesis by Dietzia natronolimnaea HS-1: effects of inoculation and aeration rate
The interest in production of natural colorants by microbial fermentation has been currently increased. The effects of D-glucose concentration (3.18-36.82 g/L), inoculum size (12.5 x 10(9)-49.5 x 10(9) cfu cells/mL) and air-flow rate (1.95-12.05 L/L min) on the biomass, total carotenoid and canthaxanthin (CTX) accumulation of Dietzia natronolimnaea HS-1 in a
Braz. J. Microbiol.. Publicado em: 05/08/2014
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5. CANTHAXANTHIN AND OR 25-HYDROXYCHOLECALCIFEROL USE IN DIETS FOR BROILER BREEDER HENS / USO DE CANTAXANTINA E/OU 25-HIDROXICOLECALCIFEROL EM DIETAS PARA MATRIZES DE CORTE
A necessidade de melhorar o desempenho reprodutivo de matrizes de corte contribuí para os conceitos de desenvolvimento e novos produtos na alimentação animal. Carophyll Red tem na sua composição cantaxantina, a qual é estudada pela sua capacidade antioxidante 25 - (OH)D3 (25-hidroxicolecalciferol), um intermediário entre a vitamina D3 e da forma ativa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2011
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6. Enhancement of canthaxanthin production from Dietzia natronolimnaea HS-1 in a fed-batch process using trace elements and statistical methods
Under fed-batch process conditions, the statistical analysis of trace elements was performed by application of Plackett-Burman design (for screening tests) and response surface methodology (for predicting the optimal points) to achieve the highest level of canthaxanthin production from Dietzia natronolimnaea HS-1. Plackett-Burman design was conducted on elev
Brazilian Journal of Chemical Engineering. Publicado em: 2010-12
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7. CANTAXANTINA E 25-HIDROXICOLECALCIFEROL E SEUS EFEITOS SOBRE OS ASPECTOS REPRODUTIVOS DE GALOS / EFFECTS OF CANTHAXANTHIN AND 25-HYDROXYCHOLECALCIFEROL ON REPRODUCTIVE ASPECTS OF MALES ROOSTERS
Com o objetivo de avaliar o desempenho e as características seminais de galos da raça White Plymouth Rock, alimentados com dietas contendo Cantaxantina e 25-hidroxicolecalciferol, foi conduzido um experimento no Laboratório de Avicultura do Departamento de Zootecnia da Universidade Federal de Santa Maria. Foram utilizados 80 galos White Plymouth Rock de 4
Publicado em: 2010
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8. 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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9. Reinvestigation of Brevibacterium sp. Strain KY-4313 as a Source of Canthaxanthin
The hydrocarbon-utilizing Brevibacterium sp. strain KY-4313 was reevaluated for its potential to produce canthaxanthin, a carotenoid pigment of strong commercial interest. Three approaches were used to optimize the canthaxanthin yield from this organism, i.e., the preparation of mutants, the addition of supposedly carotenogenic chemicals to the growth medium
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10. Isolation and Identification of Canthaxanthin from Micrococcus roseus
Cooney, J. J. (University of Dayton, Dayton, Ohio), H. W. Marks, Jr., and Anne M. Smith. Isolation and identification of canthaxanthin from Micrococcus roseus. J. Bacteriol. 92:342–345. 1966.—The principal colored carotenoid of Micrococcus roseus was purified by solvent partitioning followed by column and thin-layer chromatography. Absorption spectra, pa
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11. Biosynthesis of Carotenoids in Brevibacterium sp. KY-43131
The biosynthesis of 4-keto and 4,4′-diketo carotenoids in Brevibacterium sp. KY-4313 was studied. Echinenone and canthaxanthin were isolated from the cultures grown on a medium containing several n-alkanes. When glutathione was added to the bacterial cultures, the formation of canthaxanthin was inhibited while β-carotene and its hydroxy derivatives accumu
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12. Isolation and Characterization of Canthaxanthin Biosynthesis Genes from the Photosynthetic Bacterium Bradyrhizobium sp. Strain ORS278
A carotenoid biosynthesis gene cluster involved in canthaxanthin production was isolated from the photosynthetic Bradyrhizobium sp. strain ORS278. This cluster includes five genes identified as crtE, crtY, crtI, crtB, and crtW that are organized in at least two operons. The functional assignment of each open reading frame was confirmed by complementation stu
American Society for Microbiology.