Effects of ionic strength on the production of short chain volatile hydrocarbons by Dunaliella salina (Teodoresco)

Muñoz, J. García; Mudge, Stephen M.; Sandoval, A.

doi:10.1016/j.chemosphere.2003.09.019

Cited by 18 publications

(14 citation statements)

References 9 publications

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“…Takagi et al [59] also observed same result as an increase in Dunaliella concentration up to 1.0 M salt thereafter growth was inhibited by salt concentration. Optimum growth rate of Dunaliella salina was observed at ionic strength of 2.0 M NaCl by Muñoz et al[44] and García et al[20]. Different growth patterns, exhibited by Growth kinetics of Dunaliella salina grown in De Walne's media with different salt concentrations…”

mentioning

confidence: 91%

Physiological characterization and stress-induced metabolic responses of Dunaliella salina isolated from salt pan

Mishra

Mandoli

Jha

2008

J Ind Microbiol Biotechnol

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A Dunaliella strain was isolated from salt crystals obtained from experimental salt farm of the institute (latitude 21.46 N, longitude 72.11 degrees E). The comparative homology study of amplified molecular signature 18S rRNA, proves the isolated strain as D. salina. The growth pattern and metabolic responses such as proline, glycine betaine, glycerol, total protein and total sugar content to different salinity (from 0.5 to 5.5 M NaCl) were studied. The optimum growth was observed at 1.0 M NaCl and thereafter it started to decline. Maximum growth was obtained on 17th day of inoculation in all salt concentrations except 0.5 M NaCl, whereas maximum growth was observed on 13th day. There were no significant differences (P < 0.01) in chlorophyll a/b contents (1.0-1.16 +/- 0.05 microg chl. a and 0.2-0.29 +/- 0.01 microg chl. b per 10(6) cells) up to 2.0 M NaCl, however at 3.0 M NaCl a significant increase (2.5 +/- 0.12 microg chl. a and 0.84 +/- 0.4 microg chl. b per 10(6) cells) was observed which declined again at 5.5 M NaCl concentration (2.0 +/- 0.1 microg chl. a and 0.52 +/- 0.03 microg chl. b per 10(6) cells). Stress metabolites such as proline, glycine betaine, glycerol and total sugar content increased concomitantly with salt concentration. Maximum increase in proline (1.4 +/- 0.07 microg), glycine betaine (5.7 +/- 0.28 microg), glycerol (3.7 +/- 0.18 ml) and total sugar (250 +/- 12.5 microg) per 10(5) cells was observed in 5.5 M NaCl. A decrease in total protein with reference to 0.5 M NaCl was observed up to 3.0 M NaCl, however, a significant increase (P < 0.01) was observed at 5.5 M NaCl (0.19 +/- 0.01 microg per 10(5) cells). Inductive coupled plasma (ICP) analysis shows that intracellular Na(+) remained unchanged up to 2.0 M NaCl concentration and thereafter a significant increase was observed. No relevant increase in the intracellular level of K(+) and Mg(++) was observed with increasing salt concentration. Evaluation of physiological and metabolic attributes of Dunaliella salina can be used to explore its biotechnological and industrial potential.

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confidence: 91%

Physiological characterization and stress-induced metabolic responses of Dunaliella salina isolated from salt pan

Mishra

Mandoli

Jha

2008

J Ind Microbiol Biotechnol

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“…Biological carbon sequestration using technologies such as controlled photosynthetic reactions may help to alleviate GHG problems, by carrying out reactions in which the CO 2 is transferred to the aqueous phase of the system where microbial conversion occurs, resulting in the production of oxygen, biomass, soluble biopolymers, carbonate and bicarbonate and volatile organic compounds [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Development of operational strategies to remove carbon dioxide in photobioreactors

Jacob‐Lopes

Revah

Hernández

et al. 2009

Chemical Engineering Journal

100

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“…Another carbon-fixing pathway is related to the Calvin-Benson cycle, where specialized enzymes present in these organisms catalyze reactions that incorporate carbon atoms coming from the CO 2 involved in photosynthesis (Falkowski, 1997). The biological conversion of carbon dioxide results in products of the photosynthetic metabolism such as cells, oxygen, biopolymers soluble in the culture medium and volatile organic compounds (VOC's) (Ishida et al, 1997;Muñoz et al, 2004;Jacob-Lopes et al, 2010). The CO 2 conversion into biomass is high only under conditions where the CO 2 mass loading rate is low.…”

Section: Carbon Dioxide Biotransformation By Microalgaementioning

confidence: 99%

“…Ishida et al (1997) Volatile organic compounds production Production of hydrocarbons, aldehydes and organohalogens Muñoz et al (2004) Besides the use of biomass and its derivatives, carbonates and bicarbonates are other products likely to be formed in photobioreactors. The use of Generally Recognized as Safe (GRAS) species and airstreams without toxic compounds, e.g., bioethanol plants, can produce chemicals of commercial value (Huijgen et al, 2007).…”

Section: Application Examples Referencementioning

confidence: 99%

Microalgae-Based Systems for Carbon Dioxide Sequestration and Industrial Biorefineries

Jacob‐Lopes¹,

Franco²

2010

Biomass

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Effects of ionic strength on the production of short chain volatile hydrocarbons by Dunaliella salina (Teodoresco)

Cited by 18 publications

References 9 publications

Physiological characterization and stress-induced metabolic responses of Dunaliella salina isolated from salt pan

Physiological characterization and stress-induced metabolic responses of Dunaliella salina isolated from salt pan

Development of operational strategies to remove carbon dioxide in photobioreactors

Microalgae-Based Systems for Carbon Dioxide Sequestration and Industrial Biorefineries

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