Hybrid two-stage culture of Halamphora coffeaeformis for biodiesel production: Growth phases, nutritional stages and biorefinery approach

2018 ◽  
Vol 118 ◽  
pp. 984-992 ◽  
Author(s):  
Lucas A. Martín ◽  
Cecilia A. Popovich ◽  
Ana M. Martínez ◽  
Paola G. Scodelaro Bilbao ◽  
María C. Damiani ◽  
...  
Keyword(s):  
Biodiesel Production ◽  
Growth Phases ◽  
Two Stage ◽  
Production Growth ◽  
Two Stage Culture

scholarly journals Nitrate Reductase Inhibition Induces Lipid Enhancement of Dunaliella Tertiolecta for Biodiesel Production

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Redouane Benhima ◽  
Hicham El Arroussi ◽  
Issam M. Kadmiri ◽  
Najib El Mernissi ◽  
Imane Wahby ◽  
...  
Keyword(s):  
Nitrate Reductase ◽  
Sodium Tungstate ◽  
Neutral Lipids ◽  
Dunaliella Tertiolecta ◽  
Biodiesel Production ◽  
Nitrogen Stress ◽  
Slight Variation ◽  
Two Stage ◽  
One Stage ◽  
Two Stage Culture

Nitrogen stress increases lipids content in microalgae, the main feedstock for algal biodiesel. Sodium tungstate was used in this study to implement nitrogen stress by inhibiting nitrate reductase (NR) in Dunaliella tertiolecta. The reduction of NR activity was accompanied by reduction of chlorophyll and accumulation of lipids. One-stage and two-stage culture strategies were compared. One-stage culture raised total lipids from 18% (control) to 39% (w: w); however, two-stage culture raised lipids to 50% in which neutral lipids were enhanced 2.14 times. To assess the quality of biodiesel produced, fatty acid methyl esters (FAME) composition was studied. It showed a slight variation of unsaturation. In addition, some physical proprieties of biodiesel were estimated and showed that higher heating values were improved by tungstate treatment. In this study, we tried to shed light on some biological impact of NR inhibition in microalgae cells using sodium tungstate which could be exploited in the improvement of biodiesel production.

Biodiesel production by two-stage transesterification with ethanol

2011 ◽  
Vol 102 (22) ◽  
pp. 10407-10413 ◽  
Author(s):  
G. Mendow ◽  
N.S. Veizaga ◽  
B.S. Sánchez ◽  
C.A. Querini
Keyword(s):  
Biodiesel Production ◽  
Two Stage

A novel two-stage culture strategy used to cultivate Chlorella vulgaris for increasing the lipid productivity

2019 ◽  
Vol 211 ◽  
pp. 816-822 ◽  
Author(s):  
Xia Hu ◽  
Baojun Liu ◽  
Yu Deng ◽  
Xin Bao ◽  
Aijiang Yang ◽  
...  
Keyword(s):  
Chlorella Vulgaris ◽  
Lipid Productivity ◽  
Two Stage ◽  
Culture Strategy ◽  
Two Stage Culture
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