J
Janaína Fernandes de Medeiros Burkert
Researcher at University of Rio Grande
Publications - 67
Citations - 1590
Janaína Fernandes de Medeiros Burkert is an academic researcher from University of Rio Grande. The author has contributed to research in topics: Chemistry & Carotenoid. The author has an hindex of 17, co-authored 54 publications receiving 1292 citations. Previous affiliations of Janaína Fernandes de Medeiros Burkert include Universidade Federal do Rio Grande do Sul & State University of Campinas.
Papers
More filters
Journal ArticleDOI
Optimization of extracellular lipase production by Geotrichum sp. using factorial design.
TL;DR: Response surface methodology was employed to study the effects of carbon source (soy oil, olive oil and glucose) and nitrogen source concentrations (corn steep liquor and NH(4)NO(3)) on the lipase production by Geotrichum sp.
Journal ArticleDOI
Optimization of phycocyanin extraction from Spirulina platensis using factorial design
Silvana Terra Silveira,Janaína Fernandes de Medeiros Burkert,Jorge Alberto Vieira Costa,Carlos André Veiga Burkert,Susana Juliano Kalil +4 more
TL;DR: Phycocyanin extraction from cyanobacteria Spirulina platensis was optimized using factorial design and response surface techniques and the optimum conditions were the highest biomass-solvent ratio, 0.08 gmL(-1), and 25 degrees C.
Journal ArticleDOI
Extraction of carotenoids from Phaffia rhodozyma: A comparison between different techniques of cell disruption
Mariano Michelon,Thais de Matos de Borba,Ruan da Silva Rafael,Carlos André Veiga Burkert,Janaína Fernandes de Medeiros Burkert +4 more
TL;DR: Among the techniques studied, the highest specific concentration of carotenoids resulted from the combined techniques of frozen biomass maceration using diatomaceous earth and enzymatic lysis at pH of the reaction medium of 4.5 at 55°C, with initial activity of β-1,3 glucanase of 0.6 U/mL for 30 min.
Journal ArticleDOI
The production of rhamnolipid by a Pseudomonas aeruginosa strain isolated from a southern coastal zone in Brazil.
L.M. Prieto,Mariano Michelon,Janaína Fernandes de Medeiros Burkert,Susana Juliano Kalil,Carlos André Veiga Burkert +4 more
TL;DR: The production and properties of a rhamnolipid-type biosurfactant synthesized by the Pseudomonas aeruginosa LBM10 strain, isolated from a southern coastal zone in Brazil, were investigated and it was found that the formation of stable emulsions was better in saline concentrations below 0.5%.
Journal ArticleDOI
C-phycocyanin extraction process for large-scale use
TL;DR: In this paper, a two-stage extraction of C-phycocyanin from Spirulina platensis cells was studied, where the biomass underwent different treatments for cell disruption, including drying, freezing and milling at different levels, and the extraction was then carried out using fixed time, impeller rotational speed and biomass-to-solvent ratio.