Chemical profile of the organic residues from ancient amphoras found in Pyrgi and Castrum Novum Tyrrhenian sea (Italy)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23330%2F19%3A43952884" target="_blank" >RIV/49777513:23330/19:43952884 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2352409X18306205" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2352409X18306205</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jasrep.2019.02.002" target="_blank" >10.1016/j.jasrep.2019.02.002</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Chemical profile of the organic residues from ancient amphoras found in Pyrgi and Castrum Novum Tyrrhenian sea (Italy)

Popis výsledku v původním jazyce

Abstract: The organic residues in the form of the black layer spots mainly inside amphoras found on the places of former ancient ports Pyrgi and Castrum Novum on the coast of the Tyrrhenian Sea were investigated using GC-MS and HPLC with fluorimetric detection. According to our hypotheis the residues could be some waterproofing materials from pine trees which ensure that amphoras could be used for transportation and storage of liquids. The samples of the residues were removed and extracted with hexane for GC-MS analysis of hydrocarbons and after evaporation of hexane and silylation of the residue with MSTFA for the analysis of fatty and resin acids and finally after evaporation of hexane and dilution of the residue with methanol for HPLC analysis of pinosylvin and confirmation of retene presence using fluorimetric detector. 18-Norabieta-8,11,13-triene, 19-norabieta-8,11,13-triene and 1,2,3,4-tetrahydroretene were found in hexane extract and they are intermediates from the tar/pitch production process. The most abundant peak in the chromatogram of hexane extract was dehydroabietic acid and retene. The latter is considered as a marker for pine pitch. The most abundant compound in derivatized hexane extract was also dehydroabietic acid, which occurs in fresh resins only as a minor component. This molecule is forming during the oxidative dehydrogenation of abietic acid, which predominates in original rosins. Pinosylvin was found in methanolic extract by HPLC with fluorimetric detection and it is to our knowledge the first findings of this substance in archaeological samples and it supports together with above mentioned compounds the hypothesis of the resin origin from Pinaceae family trees.

Název v anglickém jazyce

Chemical profile of the organic residues from ancient amphoras found in Pyrgi and Castrum Novum Tyrrhenian sea (Italy)

Popis výsledku anglicky

Abstract: The organic residues in the form of the black layer spots mainly inside amphoras found on the places of former ancient ports Pyrgi and Castrum Novum on the coast of the Tyrrhenian Sea were investigated using GC-MS and HPLC with fluorimetric detection. According to our hypotheis the residues could be some waterproofing materials from pine trees which ensure that amphoras could be used for transportation and storage of liquids. The samples of the residues were removed and extracted with hexane for GC-MS analysis of hydrocarbons and after evaporation of hexane and silylation of the residue with MSTFA for the analysis of fatty and resin acids and finally after evaporation of hexane and dilution of the residue with methanol for HPLC analysis of pinosylvin and confirmation of retene presence using fluorimetric detector. 18-Norabieta-8,11,13-triene, 19-norabieta-8,11,13-triene and 1,2,3,4-tetrahydroretene were found in hexane extract and they are intermediates from the tar/pitch production process. The most abundant peak in the chromatogram of hexane extract was dehydroabietic acid and retene. The latter is considered as a marker for pine pitch. The most abundant compound in derivatized hexane extract was also dehydroabietic acid, which occurs in fresh resins only as a minor component. This molecule is forming during the oxidative dehydrogenation of abietic acid, which predominates in original rosins. Pinosylvin was found in methanolic extract by HPLC with fluorimetric detection and it is to our knowledge the first findings of this substance in archaeological samples and it supports together with above mentioned compounds the hypothesis of the resin origin from Pinaceae family trees.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

60102 - Archaeology

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Archaeological Science: Reports

ISSN

2352-409X

e-ISSN

—

Svazek periodika

24

Číslo periodika v rámci svazku

APR 2019

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

565-573

Kód UT WoS článku

000466995200052

EID výsledku v databázi Scopus

2-s2.0-85061635536