Results 21 to 30 of about 17,621 (233)

Cor, betacaroteno e colesterol em gema de ovos obtidos de poedeiras que receberam diferentes dietas Color, beta-caroten and cholesterol in yolks of eggs by different diets of laying hens

open access: yesCiência e Agrotecnologia, 2006
O ovo é um alimento considerado nutricionalmente completo, e contém quantidade significativa de nutrientes. Para os consumidores, a qualidade deste alimento está relacionada com o prazo de validade do produto e com as características sensoriais, como cor
Luciana Marino e Biscaro   +1 more
doaj   +1 more source

Electrical Properties of Langmuir Films of Fatty Acid Salts and Carotenoic Acid [PDF]

open access: yesBulletin of the Chemical Society of Japan, 1978
Abstract Electric conductivities have been studied for Langmuir molecular layers of barium salt of fatty acids and for the layers of barium arachidate mixed with all-trans-β-apo-8′-carotenoic acid. These results have been interpreted based on an electron tunneling model taking account of the mirror image force.
Naoto Yamamoto   +3 more
openaire   +2 more sources

Composição de carotenoides em passifloras do cerrado

open access: yesRevista Brasileira de Fruticultura, 2011
O objetivo foi avaliar, por HPLC, a composição qualitativa e quantitativa de carotenoides em maracujás do cerrado. Frutos procedentes de acessos nativos de quatro espécies (Passiflora cincinnata, P. nitida, P. setacea e P.
Daniele Cristina Wondracek   +4 more
doaj   +1 more source

Carotenogénesis y pigmentos en Cucurbita spp.

open access: yesRevista U.D.C.A Actualidad & Divulgación Científica, 2023
Los carotenoides son pigmentos orgánicos que el organismo no puede sintetizar y deben ser suministrados en la dieta humana. Este artículo de revisión tiene por objetivo abordar la ruta carotenogénica y los pigmentos predominantes en la pulpa de ...
Robert Augusto Rodríguez-Restrepo   +3 more
doaj   +1 more source

Impact of photocatalysis on carotenoic acid dye-sensitized solar cells

open access: yesHybrid Materials, 2015
AbstractSensitized mesoporous titania is of increasing interest for catalysis and photovoltaic devices such as dye-sensitized solar cells (DSCs). For photovoltaic applications, the catalytic properties of TiO2 can cause degradation of the dyes during device fabrication. This is especially the case if natural sensitizers are used.
Jöhr, Res   +7 more
openaire   +4 more sources

Exploring 12‘-Apo-β-carotenoic-12‘-acid as an Ultrafast Polarity Probe for Ionic Liquids [PDF]

open access: yesThe Journal of Physical Chemistry B, 2008
The ultrafast excited-state dynamics of the carbonyl-containing carotenoid 12'-apo-beta-carotenoic-12'-acid (12'CA) have been used for probing the microscopic environment in various ionic liquids (ILs). The following IL cations were investigated: 1,3-di-n-alkyl-imidazolium featuring different n-alkyl chain lengths and also additional methylation at the
Lohse, P.   +3 more
openaire   +4 more sources

Contenido de beta-caroteno, hierro y zinc, efecto de almacenamiento y tipo de cocción en genotipos de camote (Ipomoea batatas L) [PDF]

open access: yes, 2017
El camote (Ipomoea batatas L) es el principal componente en la dieta de millones de personas que viven en países tropicales, y un mejoramiento en el contenido de â-caroteno podría incrementar el suministro de vitamina A para satisfacer la mayor parte de ...
Carpio, R., Gruneberg, W.J., Sotelo, A.
core   +1 more source

Aspectos nutritivos de alguns frutos da Amazonia () [PDF]

open access: yesActa Amazonica, 1980
Resumo As frutas amazônicas, tucumã, açaí, buriti, pupunha, piquiá, mari, caiaué, patauá, uxi, sapota, sorva e abricó foram analisados quanto aos níveis de proteína, gordura, fibra, carboidratos, energia, caroteno e zinco.
Jaime Paiva Lopes Aguiar   +3 more
doaj   +1 more source

Estudos sobre o caroteno em algumas variedades amazônicas de mandioca (Manihot esculenta Crantz) [PDF]

open access: yesActa Amazonica, 1981
Resumo Foram conduzidos experimentos com raízes de mandioca nos quais foi verificado um efeito da variedade, idade e corte transversal, sobre o conteúdo de caroteno. Notaram-se grandes perdas ocorridas durante o processamento das raízes na farinha d'água
H. A. Marinho, D. B. Arkcoli
doaj   +1 more source

α-, β-caroteno e α-tocoferol em algas marinhas in natura [PDF]

open access: yesCiência e Tecnologia de Alimentos, 2008
The aim of this work was to evaluate the potential of 32 marine macro algae species, members of Chlorophyta, Rhodophyta and Phaeophyta, as sources of a-carotene, b-carotene and a-tocopherol. Both b-carotene and a-carotene were found in all species of green macroalgae analyzed.
Sousa, Márcia Barbosa de   +4 more
openaire   +4 more sources

Home - About - Disclaimer - Privacy