A novel route for identifying starch diagenetic products in the archaeological record.

This work introduces a novel analytical chemistry method potentially applicable to the study of archaeological starch residues. The investigation involved the laboratory synthesis of model Maillard reaction mixtures and their analysis through Fourier-Transform Ion Cyclotron Resonance Mass Spectromet...

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Autores principales:	Thomas Oldenburg, Melisa Brown, Jamie Inwood, Jagoš Radović, Ryan Snowdon, Steve Larter, Julio Mercader
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5bc9122b808e4010b576362ffb3fc816
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id	oai:doaj.org-article:5bc9122b808e4010b576362ffb3fc816
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spelling	oai:doaj.org-article:5bc9122b808e4010b576362ffb3fc8162021-12-02T20:12:49ZA novel route for identifying starch diagenetic products in the archaeological record.1932-620310.1371/journal.pone.0258779https://doaj.org/article/5bc9122b808e4010b576362ffb3fc8162021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0258779https://doaj.org/toc/1932-6203This work introduces a novel analytical chemistry method potentially applicable to the study of archaeological starch residues. The investigation involved the laboratory synthesis of model Maillard reaction mixtures and their analysis through Fourier-Transform Ion Cyclotron Resonance Mass Spectrometry (FTICR-MS). Thus, starch from sixteen plant species were matured while reacting it with the amino acid glycine. The FTICR-MS analysis revealed > 5,300 molecular compounds, with numerous unique heteroatom rich compound classes, ranging from 20 (Zea mays) to 50 (Sorghum bicolor). These classes were investigated as repositories of chemical structure retaining source and process-specific character, linked back to botanical provenance. We discussed the Maillard reaction products thus generated, a possible pathway for the preservation of degraded starch, while also assessing diagenetic recalcitrance and adsorption potential to mineral surfaces. In some cases, hydrothermal experimentation on starches without glycine reveals that the chemical complexity of the starch itself is sufficient to produce some Maillard reaction products. The article concludes that FTICR-MS offers a new analytical window to characterize starchy residue and its diagenetic products, and is able to recognize taxonomic signals with the potential to persist in fossil contexts.Thomas OldenburgMelisa BrownJamie InwoodJagoš RadovićRyan SnowdonSteve LarterJulio MercaderPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 11, p e0258779 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Thomas Oldenburg Melisa Brown Jamie Inwood Jagoš Radović Ryan Snowdon Steve Larter Julio Mercader A novel route for identifying starch diagenetic products in the archaeological record.
description	This work introduces a novel analytical chemistry method potentially applicable to the study of archaeological starch residues. The investigation involved the laboratory synthesis of model Maillard reaction mixtures and their analysis through Fourier-Transform Ion Cyclotron Resonance Mass Spectrometry (FTICR-MS). Thus, starch from sixteen plant species were matured while reacting it with the amino acid glycine. The FTICR-MS analysis revealed > 5,300 molecular compounds, with numerous unique heteroatom rich compound classes, ranging from 20 (Zea mays) to 50 (Sorghum bicolor). These classes were investigated as repositories of chemical structure retaining source and process-specific character, linked back to botanical provenance. We discussed the Maillard reaction products thus generated, a possible pathway for the preservation of degraded starch, while also assessing diagenetic recalcitrance and adsorption potential to mineral surfaces. In some cases, hydrothermal experimentation on starches without glycine reveals that the chemical complexity of the starch itself is sufficient to produce some Maillard reaction products. The article concludes that FTICR-MS offers a new analytical window to characterize starchy residue and its diagenetic products, and is able to recognize taxonomic signals with the potential to persist in fossil contexts.
format	article
author	Thomas Oldenburg Melisa Brown Jamie Inwood Jagoš Radović Ryan Snowdon Steve Larter Julio Mercader
author_facet	Thomas Oldenburg Melisa Brown Jamie Inwood Jagoš Radović Ryan Snowdon Steve Larter Julio Mercader
author_sort	Thomas Oldenburg
title	A novel route for identifying starch diagenetic products in the archaeological record.
title_short	A novel route for identifying starch diagenetic products in the archaeological record.
title_full	A novel route for identifying starch diagenetic products in the archaeological record.
title_fullStr	A novel route for identifying starch diagenetic products in the archaeological record.
title_full_unstemmed	A novel route for identifying starch diagenetic products in the archaeological record.
title_sort	novel route for identifying starch diagenetic products in the archaeological record.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/5bc9122b808e4010b576362ffb3fc816
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A novel route for identifying starch diagenetic products in the archaeological record.

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