| dc.description.abstract | The aim of this research was to find appropriate transesterificalion conditions at production biodiesel production from Alexandrian laurel (Calophyllum inophyllum L.) seed oil. Nyamplung crude oil before transesterification was given degumming and esterification treatment. Condition process of trans esterification is obtained 10 followexperimenl itifluence of extemalfaclor 10 know affectivity q( transesterification process. External factor covered temperature, time, speed of stirring, ratio of methanol molar and catalyst. Some of external factor that having significant transesterificationon effect is optimized to determine accuracy of level factor. Experiment influ.ence of temperature treatment, time, speed of stirring ratio molar of methanol and concentration of catalyst is done separately use Completely Randomize Design (CRD). Biodiesel product is measurement viscosity and free fatty acid at end riftransesterification. Optimization process is done to gel optimum response useResponse Surface Method (RSM). Data is processed with Minitab 14 and SAS V6.12. Transesterification process of nyamplung ai/which can yield low of free fatty acid and viscosities is obtained at ratio molar of methanol to oil 6:1 catalyst NaOH 1% temperature of transesterification 60 oc, time 30 minute and speed of stirring 400 rpm. Optimization from response FFA content, weight of product and methyl ester content from too Significant factor effect is obtained at ratio molar of methanol 6,3: 1 and optimum catalyst NaOH 1,1% | en |
