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	Provedor de dados Biol. Res. (2) Autor GÓMEZ,PATRICIA I (2) BARRIGA,ALEJANDRA (1) CIFUENTES,ANA SILVIA (1) GONZÁLEZ,MARIELA A (1) GONZÁLEZ,MARIELA A. (1) Palavra-chave -carotene ß-carotene temperature irradiance (1) Dunaliella salina strains growth &#ß (1) Tipo do documento Journal article (2) Ano 2005 (1) 2003 (1) País Chile (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última The effect of temperature and irradiance on the growth and carotenogenic capacity of seven strains of Dunaliella salina (Chlorophyta) cultivated under laboratory conditions Biol. Res. GÓMEZ,PATRICIA I; GONZÁLEZ,MARIELA A. The carotenogenic microalga Dunaliella salina is cultivated as a natural source of ß-carotene. The 9-cis isomer of ß-carotene is found only in natural sources having commercial advantages over the all-trans isomer due to its high liposolubility and antioxidant power. High irradiance appears to stimulate specifically all-trans ß-carotene accumulationin D. salina, whereas low temperature apparently elicits ß-carotene and 9-cis ß-carotene production. We studied the effect of temperature and irradiance on the growth and the carotenogenesis of three Chilean (CONC-001, CONC-006 and CONC-007) and four non-Chilean (from Mexico, China, Australia and Israel) strains of D. salina cultivated under two photon flux densities (40 and 110 μmol photons.m-2.s-1)... Tipo: Journal article Palavras-chave: Dunaliella salina strains growth &#ß; -carotene ß-carotene temperature irradiance. Ano: 2005 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602005000200005 Effect of salinity on the quantity and quality of carotenoids accumulated by Dunaliella salina (strain CONC-007) and Dunaliella bardawil (strain ATCC 30861) Chlorophyta Biol. Res. GÓMEZ,PATRICIA I; BARRIGA,ALEJANDRA; CIFUENTES,ANA SILVIA; GONZÁLEZ,MARIELA A.. Dunaliella salina and D. bardawil are well-known microalgae accumulating high levels of b-carotene under growth-limiting conditions. In both taxa, this pigment is primarily composed of the isomers 9-cis and all-trans. The 9-cis b-carotene occurs only in natural sources and is the most attractive from a commercial point of view. The conditions that enhance the preferred accumulation of 9-cis b-carotene in D. salina are controversial and they have not been well established yet. This study examined the effect of salinity on the quantity and quality of total carotenoids and b-carotene isomers accumulated by D. salina (strain CONC-007) and D. bardawil (strain ATCC 30861) grown in two media with different nutritional compositions (PES and ART) and at salt... Tipo: Journal article Ano: 2003 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602003000200008 Registros recuperados: 2 Primeira ... 1 ... Última

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