Egyptian Journal of Biology

The AJOL site is currently undergoing a major upgrade, and there will temporarily be some restrictions to the available functionality.
-- Users will not be able to register or log in during this period.
-- Full text (PDF) downloads of Open Access journal articles will be available as always.
-- Full text (PDF) downloads of subscription based journal articles will NOT be available
We apologise for any inconvenience caused. Please check back soon, as we will revert to usual policy as soon as possible.

Total lipid accumulation and fatty acid profiles of microalga Spirulina under different nitrogen and phosphorus concentrations

RN Bhakar, B Brahmdutt, S Pabbi


Nutrient limitation in terms of nitrogen and phosphorus increased lipid accumulation under depleted growth in Spirulina strains. Nitrogen limitation was found more effective than phosphorus in accumulating lipid. The fatty acid profile was variable: palmitic (48%), linolenic (21%) and linoleic acids (15%) were the most prevalent types. It was interesting that nitrogen limitation was more effective in increasing total lipid content, whereas phosphorus limitation had more effect on the fatty acid profile. Fatty acid ratios were different under the two conditions of nutrient limitation, with γ -linolenic acid being accumulated in higher quantities under nitrogen than phosphorus limitation.
AJOL African Journals Online