Explorative study for the rapid detection of adulterated surimi using gas chromatography-ion mobility spectrometry

Jingyi Chen; Haiqing Tang; Mengyun Wang; Huamao Wei; Changrong Ou

doi:10.1016/j.foodchem.2023.138083

Explorative study for the rapid detection of adulterated surimi using gas chromatography-ion mobility spectrometry

Food Chem. 2024 May 1:439:138083. doi: 10.1016/j.foodchem.2023.138083. Epub 2023 Nov 29.

Authors

Jingyi Chen¹, Haiqing Tang², Mengyun Wang¹, Huamao Wei¹, Changrong Ou³

Affiliations

¹ College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang 315832, China.
² Faculty of Food Science, Zhejiang Pharmaceutical University, Ningbo, Zhejiang 315100, China.
³ College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang 315832, China; Key Laboratory of Animal Protein Food Deep Processing Technology of Zhejiang Province, Ningbo University, Ningbo, Zhejiang 315832, China. Electronic address: ouchangrong@nbu.edu.cn.

PMID: 38043278
DOI: 10.1016/j.foodchem.2023.138083

Abstract

Driven by economic interests, surimi adulteration has become a high-frequency issue. This study aims to assess the feasibility of gas chromatography-ion mobility spectrometry (GC-IMS) in detecting surimi adulteration. In this work, three common adulterated surimi models were established by mixing with different fish species and ratios. The fingerprints enabled a clear discrimination among different tuna surimi, and other two surimi models with different mixing ratios also showed VOCs (volatile organic compounds) differences. Results of unsupervised principal component analysis (PCA) and supervised partial least-squares discrimination analysis (PLS-DA) revealed that different types of adulterated surimi models can be well separated from each other. A total of 12, 16, and 9 VOCs were selected as the potential markers in three simulated models by PLS-DA method, respectively. Therefore, GC-IMS coupled with certain chemometrics is expected to serve as an alternative analytical tool to directly and visually detect adulterated surimi.

Keywords: Chemometrics; Gas chromatography-ion mobility spectrometry; Surimi adulteration; Volatile compounds.

MeSH terms

Animals
Gas Chromatography-Mass Spectrometry / methods
Ion Mobility Spectrometry* / methods
Volatile Organic Compounds* / analysis

Substances

Volatile Organic Compounds