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Abstract
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Storage compounds derived from microalgae are appropriate alternative feedstocks for biofuel
production. Speices based systems are exposed to contamination causing low productivity. Mixed
culture as an industrially feasible solution to pure culture can be used to prevent contamination
risk. Microalage can accumulate high level of starch and lipid in some stress conditions such as
nutrient starvation. In this study, in a mixed-culture of microalgae, starch and lipid accumulation
was investigated under nitrogen limitation in a six-day batch. As a result, the amount of starch and
lipid at the end of batch became 41.3 and 29 % on the basis of volatile suspended solids,
respectively.
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