Research Title |
Fed-batch heterotrophic and mixotrophic cultivation of Chlorella sp. KKU-S2 for lipid production |
Date of Distribution |
25 March 2011 |
Conference |
Title of the Conference |
the 3rd International Conference on Science and Technology for Sustainable Development of the Greater Mekong Sub-region (STGMS) |
Organiser |
STGMS |
Conference Place |
Luang Prabang |
Province/State |
LAO People's Democratic Republic |
Conference Date |
24 March 2011 |
To |
25 March 2011 |
Proceeding Paper |
Volume |
3 |
Issue |
1 |
Page |
84 |
Editors/edition/publisher |
|
Abstract |
Chlorella sp. KKU-S2 is a freshwater microalgae that can grow photoautotrophic,
mixotrophic and heterotrophic cultivations. Heterotrophic and mixotrophic cultivations using
organic carbon source offer several advantages over photoautotrophic cultivation such as good
control of cultivation process, high biomass and cellular lipid content. Fed-batch cultivation
offers advantages over batch cultivation including high biomass and productivity, elimination
of substrate inhibition on cell growth. Therefore, the objective of this work is to cultivate
Chlorella sp. KKU-S2 to enhance biomass and cellular lipid content of under fed-batch
heterotrophic and mixotrophic cultivations using glucose as carbon substrate for their
application as a sustainable feedstock for biodiesel production. Batch heterotrophic and
mixotrophic cultivations were preliminary investigated using Bristol’s medium supplemented
with 20g/L glucose, a biomass of 2.13 and 1.21 g/L were obtained with lipid content of 19.45
and 17.38% of cell dry weight (CDW) under heterotrophic and mixotrophic cultivation,
respectively. Fed-batch fermentation was then performed and the obtained results presented
that a biomass of 2.27 g/L with lipid of 0.771 g/L or lipid content of 33.93%CDW were
obtained when the culture was performed under fed-batch heterotrophic cultivation. Whereas,
a biomass of 3.82 g/L with lipid 1.295g/L or 33.9%CDW were found under fed-batch
mixotrophic cultivation. |
Author |
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Peer Review Status |
มีผู้ประเมินอิสระ |
Level of Conference |
นานาชาติ |
Type of Proceeding |
Abstract |
Type of Presentation |
Poster |
Part of thesis |
true |
Presentation awarding |
false |
Attach file |
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Citation |
0
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