The effect of nutrient arrangement on biomass growth and lipid content of microalgae Nannochloropsis oculata in internally illuminated bubble column photobioreactor

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Abstract

Microalgae is one of favorable biofuel raw material which has wide potential. The application of microalgae as an alternative energy raw material is based on its ability that can be reproduced continously. Hazards from fossil fuel combustion on the environment are also a consideration that favored the use of biofuels. Nannochloropsis sp. is a type of microalgae that produce lipid as its main product. However, the utilization of microalgae in Indonesia has not been executed due to some drawbacks, one of them is the low biomass yield produced by photobioreactors when used on an industrial scale. Nutritional intake is one of the factors that influence the growth rate of microalgae biomass. This research contains the comparison of growth rate and lipid content of Nannochloropsis oculata that was cultivated in a pilot scale bubble column photobioreactor with internal illumination with three different Walne composition medium, which are phosphate addition, nitrate reduction, and control. The objective is to determine optimum phosphate and nitrate composition in the Walne medium for growth rate and lipid content of Nannochloropsis oculata. On this research, medium with phosphate addition produces the highest biomass, which is 0,048 g/L.t he highest lipid content was found in medium with nitrate reduction which contains 25,77% of lipid out of its biomass.

Original languageEnglish
Title of host publicationProceeding of the 4th International Symposium on Applied Chemistry, ISAC 2018
EditorsMuhammad Arifuddin Fitriady, Siti Nurul Aisyiyah Jenie, Adid Adep Dwiatmoko
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735417441
DOIs
Publication statusPublished - 7 Nov 2018
Event4th International Symposium on Applied Chemistry, ISAC 2018 - Banten, Indonesia
Duration: 1 Nov 20182 Nov 2018

Publication series

NameAIP Conference Proceedings
Volume2024
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference4th International Symposium on Applied Chemistry, ISAC 2018
Country/TerritoryIndonesia
CityBanten
Period1/11/182/11/18

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