Received: FebruAccepted: OctoPublished: November 18, 2021Ĭopyright: © 2021 Oldenburg et al. PLoS ONE 16(11):Įditor: Joseph Banoub, Fisheries and Oceans Canada, CANADA (2021) A novel route for identifying starch diagenetic products in the archaeological record. 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.Ĭitation: Oldenburg T, Brown M, Inwood J, Radović J, Snowdon R, Larter S, et al. 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. 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. These classes were investigated as repositories of chemical structure retaining source and process-specific character, linked back to botanical provenance. 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). Thus, starch from sixteen plant species were matured while reacting it with the amino acid glycine. The investigation involved the laboratory synthesis of model Maillard reaction mixtures and their analysis through Fourier-Transform Ion Cyclotron Resonance Mass Spectrometry (FTICR-MS). This work introduces a novel analytical chemistry method potentially applicable to the study of archaeological starch residues.
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