A Biorefinery from Nannochloropsis sp. Microalga ? Extraction of Oils and Pigments. Production of Biohydrogen from the Leftover Biomass

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F13%3A00422181" target="_blank" >RIV/67985858:_____/13:00422181 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.biortech.2012.11.084" target="_blank" >http://dx.doi.org/10.1016/j.biortech.2012.11.084</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.biortech.2012.11.084" target="_blank" >10.1016/j.biortech.2012.11.084</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A Biorefinery from Nannochloropsis sp. Microalga ? Extraction of Oils and Pigments. Production of Biohydrogen from the Leftover Biomass

Popis výsledku v původním jazyce

The microalga Nannochloropsis sp. was used in this study, in a biorefinery context, as biomass feedstock for the production of fatty acids for biodiesel, biohydrogen and high added-value compounds. The microalgal biomass, which has a high lipid and pigment content (mainly carotenoids), was submitted to supercritical CO2 extraction. The temperature, pressure and solvent flow-rate were evaluated to check their effect on the extraction yield. The best operational conditions to extract 33 glipids/100 g(dry)biomass were found to be at 40 degrees C, 300 bar and a CO2 flow-rate of 0.62 g/min. The effect of adding a co-solvent (ethanol) was also studied. When supercritical CO2 doped with 20% (w/w) ethanol was used, it was possible to extract 45 g(lipids)/100g(dry) (biomass) of lipids and recover 70% of the pigments. Furthermore, the remaining biomass after extraction was effectively used as feedstock to produce biohydrogen through dark fermentation by Enterobacter aerogenes resulting in a hy

Název v anglickém jazyce

A Biorefinery from Nannochloropsis sp. Microalga ? Extraction of Oils and Pigments. Production of Biohydrogen from the Leftover Biomass

Popis výsledku anglicky

The microalga Nannochloropsis sp. was used in this study, in a biorefinery context, as biomass feedstock for the production of fatty acids for biodiesel, biohydrogen and high added-value compounds. The microalgal biomass, which has a high lipid and pigment content (mainly carotenoids), was submitted to supercritical CO2 extraction. The temperature, pressure and solvent flow-rate were evaluated to check their effect on the extraction yield. The best operational conditions to extract 33 glipids/100 g(dry)biomass were found to be at 40 degrees C, 300 bar and a CO2 flow-rate of 0.62 g/min. The effect of adding a co-solvent (ethanol) was also studied. When supercritical CO2 doped with 20% (w/w) ethanol was used, it was possible to extract 45 g(lipids)/100g(dry) (biomass) of lipids and recover 70% of the pigments. Furthermore, the remaining biomass after extraction was effectively used as feedstock to produce biohydrogen through dark fermentation by Enterobacter aerogenes resulting in a hy

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Bioresource Technology

ISSN

0960-8524

e-ISSN

—

Svazek periodika

135

Číslo periodika v rámci svazku

MAY 2013

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

128-136

Kód UT WoS článku

000319181000021

EID výsledku v databázi Scopus

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