Artículo de revista
Evaluation of a two-phase extraction system of carbohydrates and proteins from chlorella vulgaris utex 1803
Fecha
2016-04Registro en:
10.3303/CET1649060
978-88-95608-40-2;
2283-9216
Autor
García Martínez, Janet Bibiana
Ayala Torres, Edinson
Reyes Gómez, Oscar
Zuorro, Antonio
Barajas Solano, Andrés Fernando
Barajas Ferreira, Crisóstomo
Institución
Resumen
Microalgae are a valuable source of high-value products and biofuels, however the high-energy cost required
for the extraction of their metabolites has kept questioning on possible industrial upgrading. The aim of this
study was to evaluate the effect of temperature, solvent/biomass, NaOH concentration and thermal pretreatment of the biomass in a 2-cycle carbohydrate and protein extraction system.
Results shown that best conditions for carbohydrates extraction are achieved at a solvent concentration of
3.67 M, 55°C and a solvent/biomass ratio of 30mL/g. On the other side, the best conditions for protein were 3
M, 85°C and 45 mL/g. The efficiencies achieved under these conditions were 95% for carbohydrates and 98%
for proteins. Using the best extraction conditions for each metabolite a thermal pre-treatment was performed
at 25°C, 75°C and 105ºC. Results indicate that highest efficiencies were achieved with dry biomass pretreated at 105°C, with values of 95% for carbohydrates and 98% for proteins.