Chemical profile of 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%2F86652079%3A_____%2F19%3A00505542" target="_blank" >RIV/86652079:_____/19:00505542 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60076658:12310/19:43899252

Výsledek na webu

<a href="https://reader.elsevier.com/reader/sd/pii/S2352409X18306205?token=AEF3A747F2797B5ACDDD601E81CB4CD7D0E5EBB7A1BAB920840F14E8233BFE6F1AB7639D419404740D190B7C0F05E777" target="_blank" >https://reader.elsevier.com/reader/sd/pii/S2352409X18306205?token=AEF3A747F2797B5ACDDD601E81CB4CD7D0E5EBB7A1BAB920840F14E8233BFE6F1AB7639D419404740D190B7C0F05E777</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 organic residues from ancient amphoras found in Pyrgi and Castrum Novum, Tyrrhenian Sea (Italy)

Popis výsledku v původním jazyce

The organic residues in the form of black layer spots inside amphoras found on the sites of the former ancient ports of Pyrgi and Castrum Novum on the coast of the Tyrrhenian Sea were investigated using GC-MS and HPLC with fluorimetric detection. According to our hypothesis, the residues could be from waterproofing materials from pine trees, which ensured that amphoras could be used for transportation and the storage of liquids. Samples of the residues were removed, extracted with hexane and separated into three parts. The first part served directly for GC-MS analysis of hydrocarbons. The second part after the evaporation of hexane and silylation of the residue with MSTFA was used for the analysis of fatty and resin acids. Finally, the third part after evaporation of hexane and dilution of the residue with methanol was used for HPLC analysis of pinosylvin mono methyl ether and confirmation of retene presence using a fluorimetric detector. 18-Norabieta-8,11,13-triene, 19-norabieta-8,11,13-triene and 1,2,3,4-tetrahydroretene were found in the hexane extract, which are intermediates from the tar/pitch production process. The most abundant peak in the chromatogram of the hexane extract was dehydroabietic acid and retene. The latter is considered to be a marker for pine pitch. The most abundant compound in the derivatized hexane extract was also dehydroabietic acid, which occurs only as a minor component in fresh resins. This molecule is formed during the oxidative dehydrogenation of abietic acid, which predominates in original resins. Pinosylvin mono methyl ether was found in the methanolic extract using HPLC with fluorimetric detection and, to the best of our knowledge, it is the first finding of this substance in archaeological samples. Together with the abovementioned compounds, it supports the hypothesis of the resin's origin from trees of the Pinaceae family.

Název v anglickém jazyce

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

Popis výsledku anglicky

The organic residues in the form of black layer spots inside amphoras found on the sites of the former ancient ports of Pyrgi and Castrum Novum on the coast of the Tyrrhenian Sea were investigated using GC-MS and HPLC with fluorimetric detection. According to our hypothesis, the residues could be from waterproofing materials from pine trees, which ensured that amphoras could be used for transportation and the storage of liquids. Samples of the residues were removed, extracted with hexane and separated into three parts. The first part served directly for GC-MS analysis of hydrocarbons. The second part after the evaporation of hexane and silylation of the residue with MSTFA was used for the analysis of fatty and resin acids. Finally, the third part after evaporation of hexane and dilution of the residue with methanol was used for HPLC analysis of pinosylvin mono methyl ether and confirmation of retene presence using a fluorimetric detector. 18-Norabieta-8,11,13-triene, 19-norabieta-8,11,13-triene and 1,2,3,4-tetrahydroretene were found in the hexane extract, which are intermediates from the tar/pitch production process. The most abundant peak in the chromatogram of the hexane extract was dehydroabietic acid and retene. The latter is considered to be a marker for pine pitch. The most abundant compound in the derivatized hexane extract was also dehydroabietic acid, which occurs only as a minor component in fresh resins. This molecule is formed during the oxidative dehydrogenation of abietic acid, which predominates in original resins. Pinosylvin mono methyl ether was found in the methanolic extract using HPLC with fluorimetric detection and, to the best of our knowledge, it is the first finding of this substance in archaeological samples. Together with the abovementioned compounds, it supports the hypothesis of the resin's origin from trees of the Pinaceae family.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

60102 - Archaeology

Projekt

<a href="/cs/project/LO1415" target="_blank" >LO1415: CzechGlobe 2020 - Rozvoj Centra pro studium dopadů globální změny klimatu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

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

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

565-573

Kód UT WoS článku

000466995200052

EID výsledku v databázi Scopus

2-s2.0-85061635536