巴基斯坦不同油脂加工行业的棕榈脂肪酸馏出物特性
Characterization of Palm Fatty Acid Distillate of Different Oil Processing Industries of Pakistan.
作者信息
Chang Abdul Sattar, Sherazi Syed Tufail Hussain, Kandhro Aftab Ahmed, Mahesar Sarfaraz Ahmed, Chang Fouzia, Shah Syed Nasrullah, Laghari Zahid Hussain, Panhwar Tarique
机构信息
National Centre of Excellence in Analytical Chemistry, University of Sindh.
出版信息
J Oleo Sci. 2016 Nov 1;65(11):897-901. doi: 10.5650/jos.ess16073. Epub 2016 Oct 12.
Palm fatty acid distillate (PFAD) is cheap and valuable byproduct of edible oil processing industries. This study was designed to characterize PFAD collected from different local oil industries. AOCS methods were used for the determination of physicochemical parameters such as free fatty acid (FFA), saponification value (SV), iodine value (IV), peroxide value (PV) and moisture content. Fatty acid composition was analyzed using GC-MS. Moisture content of samples was found to be in the range between 0.06-7.50%, while FFA, SV, IV and PV were found to be 65.70-94.68%, 195.23-219.64 mg KOH/g, 38.49- 63.10 g I/100 g, 1.09-16.50 meq/kg, respectively. Mean value of fatty acids in PFAD was found as 0.04% lauric, 0.42% myristic, 41.25% palmitic, 7.29% stearic, 41.58% oleic, 8.95 % linoleic, 0.04% eicosenoic, 0.27% arachidic, 0.07% docosanoic, and 0.05% tetracosanoic acid, respectively. Palmitic acid was found as dominant saturated fatty acid 38.63-45.30%, whereas oleic acid C was major unsaturated fatty acid 33.54-44.05 % in PFAD.
棕榈脂肪酸馏出物（PFAD）是食用油加工行业廉价且有价值的副产品。本研究旨在对从不同地方油脂行业收集的PFAD进行特性分析。采用美国油脂化学家协会（AOCS）的方法测定游离脂肪酸（FFA）、皂化值（SV）、碘值（IV）、过氧化值（PV）和水分含量等理化参数。使用气相色谱 - 质谱联用仪（GC - MS）分析脂肪酸组成。发现样品的水分含量在0.06 - 7.50%之间，而FFA、SV、IV和PV分别为65.70 - 94.68%、195.23 - 219.64毫克氢氧化钾/克、38.49 - 63.10克碘/100克、1.09 - 16.50毫克当量/千克。PFAD中脂肪酸的平均值分别为：月桂酸0.04%、肉豆蔻酸0.42%、棕榈酸41.25%、硬脂酸7.29%、油酸41.58%、亚油酸8.95%、二十碳烯酸0.04%、花生酸0.27%、二十二烷酸0.07%和二十四烷酸0.05%。在PFAD中，棕榈酸是主要的饱和脂肪酸，占38.63 - 45.30%，而油酸是主要的不饱和脂肪酸，占33.54 - 44.05%。
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