Data/hora: 27/07/2024 01:41:47

Provedor de dados: 	58	
País: 	Brazil	
Título: 	Minerals consumption by Acetobacter xylinum on cultivation medium on coconut water	
Autores: 	Almeida,Denise Milleo; Prestes,Rosilene Aparecida; Fonseca,Adriel Ferreira da; Woiciechowski,Adenise L.; Wosiacki,Gilvan.	
Data: 	2013-01-01	
Ano: 	2013	
Palavras-chave: 	Minerals; Bacterial cellulose; Acetobacter xylinum.	
Resumo: 	The objective of this work is to verifying the consume of the minerals K, Na, Fe, Mg, P, S-SO4-2,B,N Total Kjedahl (NTK), NO3--N, and NH4+-N in the production of bacterial cellulose by Acetobacter xylinum, according to the medium and the manner of cultivation. The fermentative process was in ripe and green coconut water. K and Na were determined by flame emission photometry, Mg and Fe by atomic absorption spectrophotometry, P by molecular absorption spectrophotometry, S-SO4-2 by barium sulphate turbidimetry, B by Azomethin-H method, NTK by Kjeldahl method, N-NO3-and N-NH4+ by vapor distillation with magnesium oxide and Devarda's alloy, respectively. In Fermentation of ripe coconut water there were higher consumption of K (69%), Fe (84,3%), P (97,4%), S-SO2-2 (64,9%), B (56,1%), N-NO3 (94,7%) and N-NH4+ (95,2%), whereas coconut water of green fruit the most consumed ions were Na (94,5%), Mg (67,7%) and NTK (56,6%). The cultivation under agitation showed higher mineral consumption. The higher bacterial cellulose production, 6 g.L-1, was verified in the coconut water fermentative in ripe fruit, added KH2PO4, FeSO4 and NaH2PO4 kept under agitation.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000100030	
Editor: 	Sociedade Brasileira de Microbiologia	
Relação: 	10.1590/S1517-83822013005000012	
Formato: 	text/html	
Fonte: 	Brazilian Journal of Microbiology  v.44 n.1 2013	
Fonte: 	info:eu-repo/semantics/openAccess