scholarly journals Strategies for the Allocation of Resources under Sulfur Limitation in the Green Alga Dunaliella salina

2000 ◽  
Vol 124 (2) ◽  
pp. 857-864 ◽  
Author(s):  
Mario Giordano ◽  
Valerio Pezzoni ◽  
Rüdiger Hell
Keyword(s):  
Green Alga ◽  
Dunaliella Salina ◽  
Allocation Of Resources

Valorization attempt of a Moroccan salt pond: -carotene production by the halotolerant green alga Dunaliella salina

2006 ◽  
Vol 120 ◽  
pp. 51-62
Author(s):  
Jamila Riyahi ◽  
Youssef Haouazine ◽  
Rachida Akallal ◽  
Thierry Givernaud ◽  
Yve Lemoine ◽  
...  
Keyword(s):  
Green Alga ◽  
Dunaliella Salina ◽  
Salt Pond

scholarly journals Antimicrobial Activity of Sub- and Supercritical CO2 Extracts of the Green Alga Dunaliella salina

2008 ◽  
Vol 71 (10) ◽  
pp. 2138-2143 ◽  
Author(s):  
JOSE A. MENDIOLA ◽  
SUSANA SANTOYO ◽  
ALEJANDRO CIFUENTES ◽  
GUILLERMO REGLERO ◽  
ELENA IBÁÑEZ ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Escherichia Coli ◽  
Carbon Dioxide ◽  
Fatty Acids ◽  
Antimicrobial Activity ◽  
Green Alga ◽  
Supercritical Co2 ◽  
Dunaliella Salina ◽  
Antimicrobial Activities ◽  
Gas Chromatography Mass Spectrometry

The objective of this research was to evaluate the antimicrobial activity of carbon dioxide extracts of the unicellular biflagellated green alga Dunaliella salina against Escherichia coli, Staphylococcus aureus, Candida albicans, and Aspergillus niger. The effects of different extraction pressures ranging from 185 to 442 bar and extraction temperatures ranging from 9.8 to 45.2°C on the extracts' composition and consequently on their antimicrobial activities were investigated. The extracts were analyzed by gas chromatography–mass spectrometry in order to identify the compounds responsible for the antimicrobial activity detected. Fourteen different volatile compounds and several fatty acids were identified. The highest antimicrobial activity was obtained using 314 bar and 9.8°C. Under these conditions, the presence of an indolic derivative that had never been reported in D. salina was detected in the extract, together with polyunsaturated fatty acids and compounds related to carotene metabolism, such as β-ionone and neophytadiene, with known antimicrobial activity.

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