Effect of iron on growth and lipid accumulation in Chlorella vulgaris

The economic feasibility of algal mass culture for biodiesel production is enhanced by the increase in biomass productivity and storage lipids. Effect of iron on growth and lipid accumulation in marine microalgae Chlorella vulgaris were investigated. In experiment I, supplementing the growth media w...

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Vydáno v:	Bioresource technology Ročník 99; číslo 11; s. 4717 - 4722
Hlavní autoři:	Liu, Zhi-Yuan, Wang, Guang-Ce, Zhou, Bai-Cheng
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Oxford Elsevier Ltd 01.07.2008 [New York, NY]: Elsevier Ltd Elsevier Science
Témata:	aquatic plant culture biodiesel Biological and medical sciences biomass cell growth centrifugation Chlorella vulgaris Chlorella vulgaris - cytology Chlorella vulgaris - drug effects Chlorella vulgaris - growth & development Chlorella vulgaris - metabolism Culture Media cytology drug effects economic feasibility FeCl 3 Fluorescence Fundamental and applied biological sciences. Psychology growth & development iron Iron - pharmacology Lipid lipid content Lipid Metabolism Lipid Metabolism - drug effects lipids metabolism Microalgae Nile Red Nitrogen Nitrogen - pharmacology pharmacology rapid methods Spectrofluorimetry Nile Red FeCl 3 Microalgae Spectrofluorimetry Lipid Fecl3 Algae Chlorella vulgaris Lipids Iron III Chlorides Chlorophyceae Fluorescence spectrometry Chlorophyta Microorganism
ISSN:	0960-8524, 1873-2976
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Shrnutí:	The economic feasibility of algal mass culture for biodiesel production is enhanced by the increase in biomass productivity and storage lipids. Effect of iron on growth and lipid accumulation in marine microalgae Chlorella vulgaris were investigated. In experiment I, supplementing the growth media with chelated FeCl 3 in the late growth phase increased the final cell density but did not induce lipid accumulation in cells. In experiment II, cells in the late-exponential growth phase were collected by centrifugation and re-inoculated into new media supplemented with five levels of Fe 3+ concentration. Total lipid content in cultures supplemented with 1.2 × 10 −5 mol L −1 FeCl 3 was up to 56.6% biomass by dry weight and was 3–7-fold that in other media supplemented with lower iron concentration. Moreover, a simple and rapid method determining the lipid accumulation in C. vulgaris with spectrofluorimetry was developed.
Bibliografie:	http://dx.doi.org/10.1016/j.biortech.2007.09.073 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 ObjectType-Article-2 ObjectType-Feature-1
ISSN:	0960-8524 1873-2976
DOI:	10.1016/j.biortech.2007.09.073