Notter Stephanie J, Stuart Barbara H
Centre for Forensic Science, University of Technology, Sydney, NSW, Australia.
J Forensic Sci. 2012 Jan;57(1):120-5. doi: 10.1111/j.1556-4029.2011.01943.x. Epub 2011 Oct 31.
Adipocere is a postmortem decomposition product that consists of a mixture of fatty acids. The rate of formation of adipocere from pig adipose tissue in an aqueous environment has been monitored. The effect of various clothing and carpet material types on the process was investigated. The fatty acid composition of the adipocere was determined at regular intervals using gas chromatography-mass spectrometry. Examination of the changes to fatty acid concentrations allowed the degree of adipocere formation in the different environments to be estimated. The study demonstrated that the rate at which adipocere forms is particularly accelerated by the presence of coverings produced from natural materials. Elemental analysis by inductively coupled plasma-mass spectrometry revealed, for the most part, little change to the cations present in the adipocere formed. However, an increase in Ca concentration was observed for tissue wrapped in acrylic carpet, which was associated with a CaCO(3) additive used in the carpet manufacture.
尸蜡是一种由脂肪酸混合物组成的死后分解产物。已监测了猪脂肪组织在水环境中形成尸蜡的速率。研究了各种衣物和地毯材料类型对该过程的影响。定期使用气相色谱 - 质谱法测定尸蜡的脂肪酸组成。通过检查脂肪酸浓度的变化，可以估计不同环境中尸蜡的形成程度。研究表明，天然材料制成的覆盖物的存在会特别加速尸蜡的形成速率。通过电感耦合等离子体质谱法进行的元素分析显示，在形成的尸蜡中，所存在的阳离子在很大程度上变化不大。然而，观察到包裹在腈纶地毯中的组织中钙浓度有所增加，这与地毯制造中使用的碳酸钙添加剂有关。
