Analysis of Biomass Production Consortium Chlorella vulgaris - Spirulina plantesis on Increasing Lipid Accumulated as Biodiesel Raw Material

Abstract

Fuel is one of the necessities of modern human life today. The limited resources condition that has been used made a change in the direction of fuel oil towards renewable material, especially lipid content in microalgae as the based material. Microalgae Chlorella vulgaris with Cyanobacteria Spirulina plantesis can form a consortium that has a symbiotic relationship expected to increase the accumulation of lipids as biodiesel. Increasing lipid accumulation can be done by limiting nutrition to gain Nitrogen starvation conditions, determining the optimum conditions for the medium, and optimizing the ratio of the consortium Chlorella vulgaris and Spirulina plantesis. The research aims to vary the medium growth, control variations in nitrogen content in the development medium, and compare the ratio between Chlorella vulgaris and Spirulina. The research result is increasement from the consortium of Chlorella vulgaris - Spirulina plantesis with the ratio of 3:2 lipid content up to 36% compared to Chlorella vulgaris.