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High density culture of marine microalgae using semi-continuous and continuous systems

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Relation http://eprints.cmfri.org.in/11077/
 
Title High density culture of marine microalgae using semi-continuous and continuous systems
 
Creator Lambade, S B
 
Subject Dissertations
Aquaculture
Algae
 
Description This study entitled "High density culture o f marine micro-algae using semicontinuous and continuous systems" was carried out with the objectives of devising small-scale low cost
systems for use in laboratory conditions. The study was carried out using two commonly used species of microalgae viz., the flagellate Isochrysis galbana and the diatom, Chaetoceros sp.
The system devised was a modified turbidostat (2 1 to 5 1) having three tier gravitational flow with manual controllers and without automation. For scale-up semicontinuous culture, a 60 1 capacity internally illuminated plexy glass culture system was devised.
Using 2.5 times the normal nutrient concentration, limited supply o f CO2 , activated charcoal filtered air and under sterile conditions it was possible to obtain upto 5 fold increase in culture cell density when compared to the normal batch cultures. Besides it was possible to maintain the cultures for durations varying from 2 to 5 weeks without collapse. In the continuous culture system o f 2 I capacity . The daily harvest o f high density culture amounted to 500 ml,
and in the semi-continuous system (4 1 capacity). The once-in-3 day harvest varied between 2-3 litres. From a single 60 1 capacity semicontinuous system running for 36 days the total
larvest amounted to 530 litres o f average 3.2 million cells/ml culture.
With respect to maricuhure, the application of conclusions derived from present.work would resut in increased efficiency and reduced cost of production of microalgae.
 
Publisher Central Marine Fisheries Research Institute
 
Date 1999-07
 
Type Thesis
NonPeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/11077/1/Lambade%20Sunil%20Bharguram.pdf
Lambade, S B (1999) High density culture of marine microalgae using semi-continuous and continuous systems. Masters thesis, Central Institute of Fisheries Education.