TY - JOUR AB - The needs of world petroleum are increased; in contrast, the fuel productions are getting decreased. Therefore, it has lead to the search for bio-fuel as an alternative energy. There are several different types of biofuel, such as biodiesel, ethanol, bioalcohol, and biogas. Biodiesel is typically made by chemically reacting lipids from a vegetable oil or animal fat with an alcohol producing fatty acid esters, such as methyl or ethyl ester. The present study aimed to study the effect of temperature (50, 60 and 65 degrees C), reaction time (1 to 5 minutes) dan types of catalyst (CaO dan MgO of 1 and 3 %) in the production of biodiesel from microalgae by the transesterification process using microwave methods. It also studied the characteristics of biodiesel which had the greatest yield in the present study, i.e. flash point, cetane number, density, viscosity, and FAME. The greatest yield was 99.35% and obtained with combination of 3% MgO catalyst quantity at temperature of 60 degrees C, in 3 minutes reaction time. At this process conditions, the biodiesel has a flash point of 122 degrees C, cetane number of 55, density of 0.89, viscosity of 5 cP and FAME of 75.12 %. AD - Widya Mandala Catholic Univ Surabaya, Fac Engn, Dept Chem Engn, Surabaya 60114, Indonesia AN - WOS:000360502800011 AU - Hindarso, H. AU - Aylianawati AU - Sianto, M. E. DA - Feb DO - 10.14710/ijred.4.1.72-76 IS - 1 J2 - Int J Renew Energy D KW - biodiesel LA - English N1 - Cq3ld PY - 2015 SN - 2252-4940 SP - 72-76 ST - Biodiesel Production From the Microalgae Nannochloropsis by Microwave Using CaO and MgO Catalysts T2 - International Journal of Renewable Energy Development-Ijred TI - Biodiesel Production From the Microalgae Nannochloropsis by Microwave Using CaO and MgO Catalysts UR - ://WOS:000360502800011 VL - 4 ID - 11316 ER -