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Optimization of biomass production with copper bioaccumulation by yeasts in submerged fermentation BABT
Arakaki,Andréa Haruko; Souza Vandenberghe,Luciana Porto de; Soccol,Vanete Thomaz; Masaki,Ryu; Rosa Filho,Ernani Francisco da; Gregório,Alexsandro; Soccol,Carlos Ricardo.
The objective of this work was to study the production of biomass with copper bioaccumulation in submerged fermentation using sugarcane molasses. Candida pelliculosa BARU 05 isolated from Baru (Dipteryx alata) was selected for its good capacity to accumulate the copper. Fermentation was carried out using the medium composed by sugarcane molasses at 5 °Brix enriched with (g/L) CuSO4.5H2O 0.1; yeast extract, 10.0; (NH4)2SO4, 5.0 ; KH2PO4, 5.0 MgSO4, 0.5, inoculum 10 % of total volume (100 ml), pH 6.0, and incubation at 30 °C, 120 rpm for 120 h. After three steps of optimization an uptake of 95.04% and 13.397 g/L biomass were obtained. The kinetics of copper bioaccumulation and biomass production was followed in a 10- liter bioreactor in a batch and fed-batch...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioaccumulation; Baru; Yeast; Copper; Sugarcane molasses.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000500021
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Utilization of the biorreactor of imersion by bubbles at the micropropagation of Ananas comosus L. Merril BABT
Scheidt,Gessiel Newton; Arakaki,Andréa Haruko; Chimilovski,Jacqueline Sugitani; Portella,Augustus Caeser Franke; Spier,Michele Rigon; Woiciechowski,Adenise Lorenci; Biasi,Luiz Antonio; Soccol,Carlos Ricardo.
The research for new techniques of in vitro cultivation is being object of many studies around the world, in order to optimize and decrease production costs of seedlings with agronomical interest. The main goal of this work was to compare different systems of in vitro cultivations using Ananas comosus L. Merril. So, the in vitro growth of the plantlets was promoted in two different bioreactors: Bioreactor of Immersion by Bubbles (B.I.B.®) and the Reactor of Temporary Immersion (R.I.T.A.®) with immersion cycle every 2 hours for 15 minutes and the traditional system in flasks with 200 mL. All cultivation systems used the MS liquid nutritive solution, supplemented with BAP (1 mgL-1), ANA (0.25 mgL-1), sucrose (30 gL-1) and Tween 20® (0.5 µL). The pH was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioreactors; Ananas comosus; Micro propagation.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700005
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