Cholesterol degradation in archaeological pottery mediated by fired clay and fatty acid pro-oxidants
Cholesterol degradation in archaeological pottery mediated by fired clay and fatty acid pro-oxidants
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DOI：
10.1016/j.tetlet.2018.10.071
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发表时间：
2018-12-12
影响因子：
1.8
通讯作者：
Evershed, Richard P.
中科院分区：
文献类型：
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作者：
Hammann, Simon;Cramp, Lucy J. E.;Evershed, Richard P.
胆固醇通常不存在于保存在考古陶瓷容器中的动物脂肪残留物中。从食用油精炼中已知，在用活性粘土漂白期间，甾醇主要通过氧化而降解。实验室加热实验使用烧制粘土从复制陶器器皿促进胆固醇通过氧化的快速降解。此外，加热胆固醇与脂肪酸（饱和和不饱和）显示额外的降解发生独立的陶瓷基质。由于这两个条件都符合考古陶器在动物（和植物）产品加工过程中，涉及加热，甾醇的有机残留物中非常罕见的检测可以解释。(C)2018爱思唯尔有限公司版权所有
Cholesterol is generally absent in animal fat residues preserved in archaeological ceramic vessels. It is known from edible oil refining that during bleaching with activated clay sterols are degraded, largely via oxidation. Laboratory heating experiments using fired clay from replica pottery vessels promoted rapid degradation of cholesterol via oxidation. Furthermore, heating cholesterol with fatty acids (saturated and unsaturated) revealed additional degradation to occur independently of the ceramic matrix. As both conditions are met in archaeological pottery during animal (and plant) product processing involving heating, the very rare detection of sterols in organic residues can be explained. (C) 2018 Elsevier Ltd. All rights reserved.