hydrocarbon from the room temperature cultivation yields higher recovery than that from the 25° C cultivation. Maximal total hydrocarbon yield was approximately 50 % (w/w). Physical pretreatment method prior to hexane extraction resulting in the total hydrocarbon recovery from high to low as the following order: grinding and subsequent sonication> grinding > sonication. Further investigation on the elevation of total hydrocarbon production yield is indispensable in order to make the algal biofuel more economically feasible.