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	Provedor de dados BABT (1) Autor Känzig,Rodolfo G. (1) Morawicki,Rubén O. (1) Schmalko,Miguel E. (1) Palavra-chave Chlorophyll stability (1) Controlled atmosphere (1) Yerba maté (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 1999 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Chlorophyll stability in yerba maté leaves in controlled atmospheres BABT Morawicki,Rubén O.; Schmalko,Miguel E.; Känzig,Rodolfo G.. The objective of this research was to investigate the stability of chlorophyll in yerba maté leaves in controlled atmospheres of CO2/air mixtures and different water activities at 25°C.Two levels of water activity were selected corresponding to saturated salt solutions of LiCl (a w=0.113) and MgCl2(a w=0.330) and three levels of CO2/air mixtures (0/100,20/80 and 40/60). The chlorophyll content was evaluated using a liquid chromatography HPLC technique. Experimental values varied between 2.16 and 0.61 mg/g of dry matter. For each sample, 5 determination were made during 58 days. Experimental values were fitted to an equation describing a first order reaction. In all cases, the agreement was good with P<3 10-3. The initial concentration of chlorophyll... Tipo: Info:eu-repo/semantics/article Palavras-chave: Yerba maté; Chlorophyll stability; Controlled atmosphere. Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000100012 Registros recuperados: 1 Primeira ... 1 ... Última

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