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Barajas-Ferreira, C.
- Development of a Selective Method for Metabolites Extraction from Microalgae Biomass
Abstract Views :182 |
PDF Views:0
Authors
P. A. Sanguino-Barajas
1,
A. F. Barajas-Solano
1,
N. A. Urbina-Suarez
1,
A. D. Gonzalez-Delgado
2,
C. Barajas-Ferreira
3
Affiliations
1 Departamento de Ciencias del Medio Ambiente, Universidad Francisco de Paula Santander UFPS, Cucuta
2 Department of Chemical Engineering, University of Cartagena, Cartagena, Bolivar, CO
3 Department of Chemical Engineering, Industrial University of Santander, Bucaramanga, CO
1 Departamento de Ciencias del Medio Ambiente, Universidad Francisco de Paula Santander UFPS, Cucuta
2 Department of Chemical Engineering, University of Cartagena, Cartagena, Bolivar, CO
3 Department of Chemical Engineering, Industrial University of Santander, Bucaramanga, CO
Source
Indian Journal of Science and Technology, Vol 11, No 7 (2018), Pagination:Abstract
Background: The production of biofuel and high value products from microalgae exhibits difficulties that have been widely studied to develop viable, efficient and economic methods for recovering metabolites. Objectives: This work is focused on evaluating experimental methods to obtain carbohydrates, proteins and lipids by varying process variables (solvent concentration, temperature, biomass/solvent ratio and moisture content). Methods/Analysis: Carbohydrate and proteins were extracted by acid and alkaline hydrolysis to study the effect of biomass moisture on recovery of these metabolites. Lipids were obtained using hexane and methanol-chloroform methods and its quantification was performed by gravimetric analysis. Findings: It was found that 41.96% and 49.77% of carbohydrates were recovered from C. vulgaris using biomass without thermal pretreatment by acid and alkaline hydrolysis, respectively. Regarding to lipid extraction, hexane was used as solvent for recovering 18.22% of lipids from C. vulgaris. In addition, results suggested that dehydrating biomass at 105°C reduces recovery of high value products. Novelty/Improvement: This study proposes a selective method for extracting metabolites, which enhances efficiency of recovery when is carried out under suitable conditions of biomass moisture, time and solvent volume.Keywords
Carbohydrates, Flocculation, Lipids, Microalgae, Proteins- Technical-Economic Prefeasibility Study of Astaxanthin Production System from H. pluvial Microalgae in Colombia
Abstract Views :194 |
PDF Views:0
Authors
J. Morales-Carvajal
1,
R. Villabona-Nuncira
1,
A. D. Gonzalez-Delgado
1,
C. Barajas-Ferreira
1,
A. Barajas-Solano
2
Affiliations
1 Department of Chemical Engineering, Industrial University of Santander, Bucaramanga, CO
2 Departamento de ciencias del medio ambiente, Universidad Francisco de Paula Santander UFPS, Cucuta, CO
1 Department of Chemical Engineering, Industrial University of Santander, Bucaramanga, CO
2 Departamento de ciencias del medio ambiente, Universidad Francisco de Paula Santander UFPS, Cucuta, CO
Source
Indian Journal of Science and Technology, Vol 11, No 34 (2018), Pagination: 1-8Abstract
Background: Nowadays, microalgae has been considered as source of valuable products such as astaxanthin, which is a carotenoid with great commercial potential as antioxidant widely used in many industries such as pharmaceutical, cosmetics and health supplement. Objectives: This work was focused on technical-economic pre-feasibility study of hybrid system for cultivation, harvesting and extraction of astaxanthin from H. pluvialis microalgae in five Colombian cities (Barranquilla, Cartagena, Santa Marta, Barrancabermeja and Cúcuta). Methods/Analysis: A hybrid system was purposed based on flat panel + open pond Photo Bioreactor (PBR), in which cell growth is inhibited by increasing radiation. Additional stages as centrifugation, filtration, and drying, milling and supercritical extraction were also implemented. An economic prefeasibility study was applied in order to determine the suitability of locations in terms of NPV, IRR and PP. Findings: It was found that the most feasible location for astaxanthin production is Santa Marta with NPV, IRR and PP of € 5,529,203, 50% and 1.9 years, respectively. Novelty/Improvement: These results suggested that astaxanthin can satisfy national demand of antioxidants by producing it from H. pluvialis microalgae.References
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