Charters, S, Evershed, R P, Quye, Anita, Blinkhorn, P W and Reeves, V (1997) Simulation experiments for determining the use of ancient pottery vessels: the behaviour of epicuticular leaf wax during boiling of a leafy vegetable. Journal of Archaeological Science, 24 (1). pp. 1-7. ISSN 0305-4403

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Abstract

Laboratory experiments were performed using replica ceramic jars to simulate ancient pottery vessel use. The aim of the study was to investigate the behaviour of lipids, specifically, epicuticular leaf wax components during the processing of foodstuffs in unglazed ceramic vessels to determine if the pattern of lipid accumulation in a vessel can be used as an indicator of the mode of use of individual vessels.Brassica(cabbage) leaves were boiled in replica jars and the ceramic fabric sampled from different parts of the vessel profiles. Leaf wax components were solvent-extracted from the fabric samples, and analysed by gas chromatography (GC) and GC/mass spectrometry (GC/MS) to determine their distributions and concentrations in different parts of the vessel profiles. The same lipid distributions were detected in the fabric of the replica jars as occurred in the wax of theBrassicaleaves. The pattern of lipid accumulation observed in the experimental vessels, i.e. the relative concentrations of lipid at different points on the profile, was analogous to that seen in two ancient vessels which had been shown to containBrassicaleaf wax components. These results confirm that boiling a leafy vegetable in water results in mobilization of the epicuticular wax and its incorporation into the porous ceramic fabric. The boiling process is non-selective with respect to the major leaf wax components and leads to a characteristic distribution of lipid down the vessel profile, with higher concentrations in the upper parts and gradually lower concentrations towards the base. This provided the first experimental evidence for the actual mode of use of individual vessels based on the results of organic residue analyses.

Item Type: Article
Uncontrolled Keywords: LIPIDS; ARCHAEOLOGICAL CERAMICS; COOKING/HEATING EXPERIMENTS; VESSEL USE; BRASSICALEAF WAX; GAS CHROMATOGRAPHY (GC); MASS SPECTROMETRY (MS)
Subjects: D History General and Old World > D History (General) > D051 Ancient History
G Geography. Anthropology. Recreation > GT Manners and customs
H Social Sciences > HT Communities. Classes. Races
N Fine Arts > NK Decorative arts Applied arts Decoration and ornament
Q Science > QD Chemistry
Theme: Material culture: creation and use
Department: Conservation and Analytical Research
Related URLs:
Depositing User: Ross Anderson
Date Deposited: 04 Apr 2019 11:42
Last Modified: 04 Apr 2019 11:42
URI: http://repository.nms.ac.uk/id/eprint/2290

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