Optimization of palm oil extraction from Decanter cake of small crude palm oil mill by aqueous surfactant solution using RSM

International Conference on Materials Engineering and Applications

Pirshahid, Shewa Ahmadi^1 ; Arirob, Wallop^2 ; Punsuvon, Vittaya^1,3,4

Department of Chemistry, Faculty of Science, Kesetsart University, Bangkok

10900, Thailand^1

Department of Botany, Faculty of Science, Kesetsart University, Bangkok

10900, Thailand^2

Center of Excellence-Oil Palm, Kasetsart University, Bangkok

10900, Thailand^3

Center for Advance Studies in Tropical Natural Resource, NRU-KU, Kasetsart University, Bangkok

10900, Thailand^4

关键词: Aqueous surfactant solutions;    Central composite designs;    Extraction temperatures;    Independent variables;    Response surface methodology;    Sodium chloride (NaCl);    Solution concentration;    Surfactant extraction;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/348/1/012011/pdf
DOI  :  10.1088/1757-899X/348/1/012011

来源: IOP

【 摘 要 】

The use of hexane to extract vegetable oil from oilseeds or seed cake is of growing concern due to its environmental impact such as its smelling and toxicity. In our method, used Response Surface Methodology (RSM) was applied to study the optimum condition of decanter cake obtained from small crude palm oil with aqueous surfactant solution. For the first time, we provide an optimum condition of preliminary study with decanter cake extraction to obtain the maximum of oil yield. The result from preliminary was further used in RSM study by using Central Composite Design (CCD) that consisted of thirty experiments. The effect of four independent variables: the concentration of Sodium Dodecyl Sulfate (SDS) as surfactant, temperature, the ratio by weight to volume of cake to surfactant solution and the amount of sodium chloride (NaCl) on dependent variables are studied. Data were analyzed using Design-Expert 8 software. The results showed that the optimum condition of decanter cake extraction were 0.016M of SDS solution concentration, 73°C of extraction temperature, 1:10 (g:ml) of the ratio of decanter cake to SDS solution and 2% (w/w) of NaCl amount. This condition gave 77.05% (w/w) oil yield. The chemical properties of the extracted palm oil from this aqueous surfactant extraction are further investigated compared with the hexane extraction. The obtained result showed that all properties of both extractions were nearly the same.