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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Influence of nutrient deprivations on lipid accumulation in a dominant indigenous microalga Chlorella sp., BUM11008: Evaluation for biodiesel production
Biomass and Bioenergy, Volume 37, Year 2012
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Description
Microalgae are a potential source of biodiesel. The urgent need for an alternative and sustainable energy has created renewed interest to analyze the microalgae for biodiesel production. In this study, a dominant indigenous freshwater unicellular microalgal strain Chlorella sp., BUM11008, was examined for its efficiency towards biodiesel production. The organism was evaluated for ability to yield high of biomass and lipid productivity under normal and various nutrient-deprived conditions (nitrogen, phosphate-potassium, iron, and all three combined). Under normal conditions, after 20days of cultivation in Chu10 medium, the organism yielded a biomass of 2.58±0.07g/L, with lipid content of 312.16±2.38mg/g. In a two-phase culturing system upon nutrition deprivation, the organism was able to respond with different levels of lipid accumulation. Among the various post-harvest treatments, nitrogen deprivation yielded the highest lipid productivity of 53.96±0.63mg/Ld, followed by the combined deprivation condition (49.16±1.36mg/Ld). FAME profiles of the isolate were found to meet the requirements of international standards for biodiesel. The study leads to the conclusion that the two-phase culturing system with nitrogen starvation as post-harvest treatment would be suitable for gaining maximum biomass productivity, and lipid content of high quality fatty acids. Thus, it is proposed that Chlorella sp., BUM11008, would be a promising candidate for sustainable biodiesel production. © 2011 Elsevier Ltd.
Authors & Co-Authors
Praveenkumar, Ramasamy
India, Tiruchirappalli
Bharathidasan University
Shameera, Kalifulla
India, Tiruchirappalli
Bharathidasan University
Mahalakshmi, Gopalakrishnan
India, Tiruchirappalli
Bharathidasan University
Akbarsha, Mohammad Abdulkader
India, Tiruchirappalli
Bharathidasan University
Saudi Arabia, Riyadh
King Saud University
Thajuddin, Nooruddin
India, Tiruchirappalli
Bharathidasan University
Saudi Arabia, Riyadh
King Saud University
Statistics
Citations: 180
Authors: 5
Affiliations: 2
Identifiers
Doi:
10.1016/j.biombioe.2011.12.035
ISSN:
09619534
Research Areas
Food Security