Department of Food Technology, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia.
Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia.
Food Chem. 2020 Oct 30;328:127147. doi: 10.1016/j.foodchem.2020.127147. Epub 2020 May 28.
The reduction of the 3-monochloropropane-1,2-diol esters (3-MCPDE) and glycidyl esters (GE) was successfully achieved by the optimization of four processing parameters: phosphoric acid dosage, degumming temperature, bleaching earth dosage, and deodorization temperature by response surface methodology without the need for additional processing steps. The optimized processing conditions were 0.31% phosphoric acid dosage, 50 °C degumming temperature, 3% bleaching earth dosage, and 240 °C deodorization temperature. The optimization resulted in more than 80% and 65% reduction of 3-MCPDE and GE levels, respectively with color and FFA contents maintained in the acceptable range specified by Palm Oil Refiners Association of Malaysia. The optimized refining condition was transferred to macro scale refining units of 1 kg and 3 kg capacities to investigate its successful application during scale-up process.
通过响应面法优化了磷酸用量、脱胶温度、白土用量和脱臭温度四个加工参数，成功降低了 3-氯-1,2-丙二醇酯（3-MCPDE）和缩水甘油酯（GE）的含量，无需额外的加工步骤。优化的加工条件为磷酸用量 0.31%、脱胶温度 50℃、白土用量 3%、脱臭温度 240℃。优化后，3-MCPDE 和 GE 的含量分别降低了 80%以上和 65%以上，色泽和游离脂肪酸（FFA）含量保持在马来西亚棕榈油精炼商协会规定的可接受范围内。将优化后的精炼条件转移到 1kg 和 3kg 容量的大型精炼设备中，以考察其在放大过程中的成功应用。
