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Forensic Science, Medicine and Pathology

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Open Access 21-04-2023 | Original Article

Starch treatment improves the salivary proteome for subject identification purposes

Authors: Hannah Smith, Cecilia Giulivi

Published in: Forensic Science, Medicine and Pathology | Issue 1/2024

Abstract

Identification of subjects, including perpetrators, is one of the most crucial goals of forensic science. Saliva is among the most common biological fluids found at crime scenes, containing identifiable components. DNA has been the most prominent identifier to date, but its analysis can be complex due to low DNA yields and issues preserving its integrity at the crime scene. Proteins are emerging as viable candidates for subject identification. Previous work has shown that the salivary proteome of the least-abundant proteins may be helpful for subject identification, but more optimized techniques are needed. Among them is removing the most abundant proteins, such as salivary α-amylase. Starch treatment of saliva samples elicited the removal of this enzyme and that of glycosylated, low-molecular-weight proteins, proteases, and immunoglobulins, resulting in a saliva proteome profile enriched with a subset of proteins, allowing a more reliable and nuanced subject identification.

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Title: Starch treatment improves the salivary proteome for subject identification purposes
Authors: Hannah Smith
Cecilia Giulivi
Publication date: 21-04-2023
Publisher: Springer US
Published in: Forensic Science, Medicine and Pathology / Issue 1/2024
Print ISSN: 1547-769X
Electronic ISSN: 1556-2891
DOI: https://doi.org/10.1007/s12024-023-00629-y

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Starch treatment improves the salivary proteome for subject identification purposes

Abstract

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

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