• Publications
  • Influence
Expression of the dietary isotope signal in the compound-specific δ13C values of pig bone lipids and amino acids
Pigs were raised on six isotopically controlled diets to examine the dietary macronutrients used in the synthesis of bulk bone biochemical components (apatite, collagen and lipids) and individualExpand
The origin of faeces by means of biomarker detection.
This communication provides an overview for researchers not necessarily familiar with molecular methods of sewage monitoring of 5b-stanols and bile acids, and the two compound classes will be considered separately, and then their integration and future development discussed. Expand
Molecular coproscopy: dung and diet of the extinct ground sloth Nothrotheriops shastensis.
DNA from excrements can be amplified by means of the polymerase chain reaction. However, this has not been possible with ancient feces. Cross-links between reducing sugars and amino groups were shownExpand
Stable carbon isotopic evidence for differences in the dietary origin of bone cholesterol, collagen and apatite: implications for their use in palaeodietary reconstruction
the narrow range of variation observed in apatite-to-cholesterol spacings ( 13 Capat-bchol) suggests that cholesterol 13 C values can potentially also be used as an independent test for the isotopicExpand
The molecularly-uncharacterized component of nonliving organic matter in natural environments
Molecularly-uncharacterized organic matter comprises most reduced carbon in soils, sediments and natural waters. The origins, reactions and fates of these ubiquitous materials are relatively obscure,Expand
Organic residue analysis utilizes analytical organic chemical techniques to identify the nature and origins of organic remains that cannot be characterized using traditional techniques ofExpand
The Earliest Horse Harnessing and Milking
Three independent lines of evidence demonstrating domestication in the Eneolithic Botai Culture of Kazakhstan, dating to about 3500 B.C.E. are presented. Expand
Quantifying dietary macronutrient sources of carbon for bone collagen biosynthesis using natural abundance stable carbon isotope analysis.
Essential and conditionally indispensable amino acids were shown to be routed from diet to collagen with little isotopic fractionation whereas non-essential amino acids differed by up to 20 per thousand, defining the minimum amount of dietary carbon routing. Expand
Direct chemical evidence for widespread dairying in prehistoric Britain
Pottery studies from a range of key early Neolithic sites confirmed that dairying was a widespread activity in this period and therefore probably well developed when farming was introduced into Britain in the fifth millennium B.C. Expand
Organic geochemical studies of soils from the Rothamsted classical experiments : V. The fate of lipids in different long-term experiments
Lipid extracts from four long-term experiments (Broadbalk Wilderness, Geescroft Wilderness, Hoosfield Spring Barley and Park Grass) were analysed using a combination of gas chromatography, gasExpand