Please use this identifier to cite or link to this item: http://repositorio.ufpa.br/jspui/handle/2011/6685
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Type: Artigo de Periódico
Issue Date: Dec-2014
Authors: SILVA, Diego Aires da
ANTONIO, Regina Vasconcellos
ROSSI, José Márcio
PENA, Rosinelson da Silva
Title: Production of medium-chain-length polyhydroxyalkanoate by Pseudomonas oleovorans grown in sugary cassava extract supplemented with andiroba oil
Citation: SILVA, Diego Aires da et al. Production of medium-chain-length polyhydroxyalkanoate by Pseudomonas oleovorans grown in sugary cassava extract supplemented with andiroba oil. Food Science and Technology (Campinas), Campinas, v. 34, n. 4, p. 738-745, out./dez. 2014. Disponível em: <http://www.scielo.br/pdf/cta/v34n4/v34n4a14.pdf>. Acesso em: 15 maio 2015. <http://dx.doi.org/10.1590/1678-457X.6465>.
Abstract: Pseudomonas oleovorans were grown on sugary cassava extracts supplemented with andiroba oil for the synthesis of a mediumchain- length polyhydroxyalkanoate (PHAMCL). The concentration of total sugars in the extract was approximately: 40 g/L in culture 1, 15 g/L in cultures 2 and 3, and 10 g/L in culture 4. Supplementation with 1% andiroba oil and 0.2 g/L of (NH4)2HPO4 was performed 6.5 hours after growth in culture 3, and supplementation with the same amount of andiroba oil and 2.4 g/L of (NH4)2HPO4 was performed at the beginning of growth in culture 4. The synthesis resulted mainly in 3-hydroxy-decanoate and 3-hydroxy-dodecanoate units; 3-hydroxy-butyrate, 3-hydroxy-hexanoate; and 3-hydroxy-octanoate monomers were also produced but in smaller proportions. P. oleovorans significantly accumulated PHAMCL in the deceleration phase of growth with an oxygen limitation but with sufficient nitrogen concentration to maintain cell growth. The sugary cassava extract supplemented with andiroba oil proved to be a potential substrate for PHAMCL production.
Keywords: Biopolimeros
Carapa guianensis
Manihot esculenta
Elevação de ar
Engenharia de alimentos
ISSN: 1678-457X
Appears in Collections:Artigos Científicos - FEA/ITEC

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