A culture method for microalgal forms using two-tier vessel providing carbon-dioxide environment: studies on growth and carotenoid production.

Usha, Tripathi and Sarada, R. and Ravishankar, G. A. (2001) A culture method for microalgal forms using two-tier vessel providing carbon-dioxide environment: studies on growth and carotenoid production. World Journal of Microbiology and Biotechnology, 17 (4). 325-329, 14 ref..

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Abstract

A culture method was developed for photoautotrophic culture of Haematococcus pluvialis, Chlorella vulgaris, Scenedesmus obliquus, Spirulina platensis, Nostoc and Stigonema in a two-tier flask consisting of nutrient media in the upper chamber and CO2 generating buffer mixture (KHCO3/K2CO3) in the lower chamber. The concentration of buffer mixture was varied to obtain desired levels of CO2. CO2 at 2.0% (v/v) level enhanced growth and chlorophyll content over control cultures (without CO2 supplementation) in all microalgal species. Haematococcus pluvialis culture in BBM and KM1 media showed 6.71- and 2.07-fold increase in biomass yields with astaxanthin productivity at 7.26 and 7.48 mg l–1 level respectively. CO2 supplementation to C. vulgaris and S. obliquus cultures resulted in 5.97- and 7.30-folds increase in biomass with 2–3 fold increase in chlorophyll and carotenoid contents over their respective controls. Similarly 2–3 fold increase in chlorophyll and carotenoid contents were observed in Sp. platensis, Nostoc and Stigonema spp. This culture methodology will provide information on CO2 requirement for growth of algae and metabolite production and also facilitates studies on the influence of light and temperature conditions.

Item Type:	Article
Uncontrolled Keywords:	Astaxanthin - autotrophic - carotenoid - Chlorella vulgaris - Haematococcus pluvialis - heterotrophic - mixotrophic - Nostoc - Scenedesmus obliquus - Spirulina platensis - Stigonema - two-tier vessel
Subjects:	500 Natural Sciences and Mathematics > 07 Life Sciences > 04 Microbiology > 01 Algae
Divisions:	Plant Cell Biotechnology
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	30 Jun 2009 08:59
Last Modified:	29 Jan 2018 09:52
URI:	http://ir.cftri.res.in/id/eprint/2462

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