RBDPO which was placed in a beaker was initially heated in a thermally controlled water bath for 30
Keywords
Crystal crystallization temperature time FBRM RBDPO palm oil
Article history
Received: 5 January 2012 Received in revised form: 10 June 2012 Accepted: 12 June 2012
418 Normah et al./IFRJ 20(1): 417-422
min at 70°C to totally melt the oil. The temperature was then reduced to 30°C within one hour followed by reducing to crystallization temperatures of 14 or 22°C within 30 min. Once the oil reached the desired temperatures (14 or 22°C), it was allowed to crystallize until 90 min where the analyses were made at 5, 15, 30, 60 and 90 min to obtain the morphology of the crystals. The beaker content was constantly stirred at 90 rpm through out the process using a stirring motor attached with two blades paddle propeller (Model IKA RW11, Staufen, Germany)