Browsing Ambiente y Vida - GIAV by Author "Barajas, Crisostomo"

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, ...

This study investigates distillery wastewater, commonly known as vinasse, as a potential culture medium for the production of Chlorella vulgaris and its most relevant metabolites. The effect of vinasse concentration on the ...

Technical-economic Prefeasibility Study of Astaxanthin Production System from H. pluvial Microalgae in Colombia
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González-Delgado, Angel Darío | 2018-09

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.

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Vinasse as a Sustainable Medium for the Production of Chlorella vulgaris UTEX 1803
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García-Martinez, Janet | 2019-07-24

This study investigates distillery wastewater, commonly known as vinasse, as a potential culture medium for the production of Chlorella vulgaris and its most relevant metabolites. The effect of vinasse concentration on the composition of the biomass (proteins, carbohydrates, and lipids) was evaluated in treatments performed in 6-L tubular air-lift reactors. The reactors were operated at 25 ◦C for 18 days, in total darkness, under a continuous flow of air. Results showed a rapid growth of microalgae in the first ten days, when an average production of 0.87 g/L was reached. Then, the daily biomass productivity began to decrease, up to an average value of 11.8 g/L at the 16th day. For all treatments, there was a significant reduction in the concentration of most metabolites in the first eight days. This was likely due to the adaptation of the biomass to the new conditions, with a transition from autotrophic to heterotrophic metabolism. From the 10th day, the concentration of metabolites in the biomass began to increase, reaching a nearly constant value at the 16th day. The observed maximum concentrations (%w/w) were: 48.95% proteins, 2.88% xylose, 7.82% glucose, 4.54% arabinose, 8.28% fructose, and 4.82% lipids. These values were only marginally affected by the type of treatment. Overall, the results obtained suggest that vinasse is a promising and sustainable medium for the growth of C. vulgaris and the production of valuable metabolites.

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Browsing Ambiente y Vida - GIAV by Author "Barajas, Crisostomo"

Technical-economic Prefeasibility Study of Astaxanthin Production System from H. pluvial Microalgae in Colombia

Vinasse as a Sustainable Medium for the Production of Chlorella vulgaris UTEX 1803

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Technical-economic Prefeasibility Study of Astaxanthin Production System from H. pluvial Microalgae in Colombia

Vinasse as a Sustainable Medium for the Production of Chlorella vulgaris UTEX 1803

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Browsing Ambiente y Vida - GIAV by Author "Barajas, Crisostomo"

Technical-economic Prefeasibility Study of Astaxanthin Production System from H. pluvial Microalgae in Colombia ﻿

Vinasse as a Sustainable Medium for the Production of Chlorella vulgaris UTEX 1803 ﻿

Envíos recientes

Technical-economic Prefeasibility Study of Astaxanthin Production System from H. pluvial Microalgae in Colombia

Vinasse as a Sustainable Medium for the Production of Chlorella vulgaris UTEX 1803

Portales Institucionales

Technical-economic Prefeasibility Study of Astaxanthin Production System from H. pluvial Microalgae in Colombia

Vinasse as a Sustainable Medium for the Production of Chlorella vulgaris UTEX 1803