1999
DOI: 10.1590/s0104-66321999000200004
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Optimization of dextran syntesis and acidic hydrolisis by surface response analysis

Abstract: The influence of some variables in the in vitro synthesis of dextran by dextransucrase from Leusconostoc mesenteroides NRRL B512F, as well as in the acidic hydrolysis of the dextran produced, were studied in order to maximize the production of clinical dextran (dextran 70 and dextran 40). The experiments were conducted using a factorial design and surface response analysis

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Cited by 28 publications
(24 citation statements)
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“…This occurs due to the substrate inhibition. According to Guimarães et al (1999), at concentrations higher than 50 g/L substrate inhibition occurs. On dextran yield (Fig.…”
Section: Resultsmentioning
confidence: 99%
“…This occurs due to the substrate inhibition. According to Guimarães et al (1999), at concentrations higher than 50 g/L substrate inhibition occurs. On dextran yield (Fig.…”
Section: Resultsmentioning
confidence: 99%
“…Discs of sterile filter paper (5 mm Ø) were placed in Petri dishes containing the culture medium (80 mm Ø) and were inoculated with 5 μL of culture from each isolate for the production of EPS (GUIMARÃES et al, 1999). Five different isolates were tested in each Petri dish.…”
Section: Screening Of Lactic Acid Bacteria For the Production Of Exopmentioning
confidence: 99%
“…A enzima dextrana-sacarase foi obtida via processo fermentativo com o micro-organismo utilizando sacarose como fonte de carbono segundo Guimarães et al (1999). O micro-organismo foi ativado em agitador orbital (27 ºC) e a produção da enzima foi realizada em fermentador por processo de batelada alimentada (Rodrigues, et al, 2005).…”
Section: Preparação Da Enzima E Determinação Da Atividade Enzimáticaunclassified