Carotenes
Mostrando 1-12 de 33 artigos, teses e dissertações.
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1. Heavy Metals and 2,4-Dinitrophenol Impact on Some Physiological and Biochemical Parameters in Capsicum Species
Abstract The accumulation of heavy metals and of pesticides in the soil have a negative impact on Capsicum chinense var. Aji Mochero and Capsicum baccatum var. pendulum Bishop's Crown species, the present work highlighting the exerted influence on the superoxid-dismutase activity, catalase and peroxidase - as enzymes implied in the removal of H2O2, of O2- ra
Braz. arch. biol. technol.. Publicado em: 24/10/2019
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2. Morphological, mechanical and chemical aspects of processing tomatoes produced in Brazilian savanna
Abstract The aim of this study was to determine the physical and chemical characteristics of ten processing tomatoes cultivars (H9992, H9553, U2006, N901, E8755, BA5445, F170, HMX, AP533 and CVR) produced in the city of Morrinhos, Goiás State, Brazil, in order to assess the fruit quality and contribute with more subsidies for choosing tomato cultivars for p
Food Sci. Technol. Publicado em: 26/10/2017
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3. Macauba ( Acrocomia aculeata ) pulp oil quality is negatively affected by drying fruits at 60 ºC
ABSTRACT This study aimed to determine if the quality of macauba pulp oil is affected by drying the whole fruits at 60 ºC. Mature fruits were collected at every five days on the ground under 10 palm trees. A mixed batch of 3 kg of whole fruits, with three replications each, was dried in an oven with air circulation for 0, 12, 24, 36 and 48 h at 60 ºC. Afte
Braz. arch. biol. technol.. Publicado em: 02/05/2017
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4. Improvement of the Extraction Process for High Commercial Value Pigments from Desmodesmus sp. Microalgae
Considering the high interest and commercial value of pigments from microalgae, this study aimed to stablish the best lutein and β-carotene extraction method for Desmodesmus sp., a microalgae with high biomass production. The evaluation was done considering the best solvent or solvent mixture, number of extractions, pre-treatment of dry biomass with acetone
J. Braz. Chem. Soc.. Publicado em: 2016-06
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5. Influence of the moisture at harvest and drying process of the grains on the level of carotenoids in maize (Zea mays)
AbstractMaize is considered a source of carotenoids; however, these compounds are highly unstable, degraded by high temperatures, exposure to light and presence of oxygen. The objective of this work was to evaluate the influence of the moisture and type of drying applied to grains on the level of carotenoids in yellow maize. The experiment was conducted in a
Food Sci. Technol. Publicado em: 15/09/2015
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6. Influência da saponificação na determinação de carotenoides em maracujás do cerrado
This work describes the evaluation of the effect of saponification process in the carotenoid's content of three species of passion fruit. The results indicated the saponification of the extract was necessary to obtain cis-violaxanthin, trans-violaxanthin and β-cryptoxanthin hydrolyzed. These compounds were found in fruits of commercial P. edulis and yellow
Química Nova. Publicado em: 2012
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7. Estimation of heritabilities and gene number in the production of provitamin A in carrots.
Broad sense heritabilities and estimates of the number of factors or genes involved in the productjon of phytoene, -carotene, -carotene, a-carotene, Iycopene and total carotenoids were estimated in two different crosses of carrot (Daucus carota L.) with different backgrounds. F2 plants segregating for absence of a-carotene were identified in the cross B493 x
CONGRESSO BRASILEIRO DE OLERICULTURA. Publicado em: 2011
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8. QTL analyses reveal clustered loci for accumulation of major carotenes and lycopene loci in carrot roots.
2002
CONGRESSO NACIONAL DE GENÉTICA. Publicado em: 2011
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9. Teores de B-Caroteno e A-tocoferol presentes na microalga Spirulina (Arthrospira) Platensis cultivada com diferentes fotoperÃodos / Levels of B-carotene and-tocopherol present in the Spirulina (Arthrospira) grown in different photoperiods Platensis
The microalga cyanophyceae Spirulina platensis has been commercialized and studied due to its high nutritional value. It has shown to be a rich source of a great variety of vitamins, minerals, proteins, polyunsaturated fatty acids, carotenoids, phycobilins, and polysaccharides that exhibit potential therapeutic properties. The aim of the present work was to
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/08/2010
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10. Estudo do processo de destilação molecular para a obtenção de ß-caroteno (pró-vitamina A) a partir do óleo de palma / Study of the molecular distillation process to obtein beta-carotene (pro-vitamin A) from palm oil
Currently, the substitution of artificial supplies by natural products in food, pharmaceutical and cosmetics areas, is acquiring an important worldwide position. In this regard, Brazil is placed on a prominent due to its great potential in natural resources and agriculture products. However, the low technological capacity for processing these resources turns
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/05/2010
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11. Extração e purificação de clorofila a, da alga Spirulina maxima: um experimento para os cursos de química
This work describes a simple and economical experiment for the extraction and purification of chlorophyll a from Spirulina maxima. Extraction and purification of natural compounds can be considered one of the most illustrative experiments that can be performed in Organic Chemistry courses. Particularly, the chromatography of dyes and pigments allows students
Química Nova. Publicado em: 2009
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12. Variability of maize genotypes for grain-carotenoid composition aiming biofortification / Variabilidade de genótipos de milho quanto à composição de carotenóides nos grãos visando a biofortificação
Vitamin A deficiency is the leading cause of blindness in the world, reaching approximately 21% of all the mal nourished children, with the largest number of affected kids in parts of Asia and Africa. Biofortification of the maize with provitamin A carotenoids, through breeding, is an alternative to diminish this deficiency, mainly in poor countries. The mai
Publicado em: 2007