Real-time authentication of animal species origin of leather products using rapid evaporative ionization mass spectrometry and chemometric analysis

Gao, Haiyan; Lin, Jihong; Jia, Xiaofei; Zhao, Yuqing; Wang, Songying; Bai, Hua; Ma, Qiang

doi:10.1016/j.talanta.2020.122069

Cited by 13 publications

(15 citation statements)

References 46 publications

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“…The raw data generated by REIMS analysis from six DSC samples provided the original material for multivariate statistical analysis by building distinct statistical models. PCA is an unsupervised algorithm which is generally applied for dimension reduction by finding out the principal components (PCs) to maximize the variance and ignoring class labels in a dataset. , The PCA model was first used for exploring major trends in the score plot (Figure A), scree plot (Figure B), and biplot (Figure C). The score plot showed that all the DSC samples clustered into six groups clearly, and the first two PCs explained 92.0 cum % of total variance, indicating the good distribution of the samples in space.…”

Section: Results and Discussionmentioning

confidence: 99%

In Situ Quality Assessment of Dried Sea Cucumber (Stichopus japonicus) Oxidation Characteristics during Storage by iKnife Rapid Evaporative Ionization Mass Spectrometry

Song

Zhao

Dai

et al. 2021

J. Agric. Food Chem.

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Sea cucumber (Stichopus japonicus) is one of the most luxurious and nutritious seafoods in Asia. It is always processed into dried products to prevent autolysis, but its quality is easily destructed during storage. Herein, an extremely simplified workflow was established for real-time and in situ quality assessment of dried sea cucumbers (DSCs) during storage based on the lipid oxidation characteristics using an intelligent surgical knife (iKnife) coupled with rapid evaporative ionization mass spectrometry (REIMS). The lipidomic phenotypes of DSCs at different storage times were acquired successfully, which were then processed by multivariate statistical analysis. The results showed that the discrepancy in the characteristic ions in different DSCs was significant (p < 0.05) with high R 2(Y) and Q 2 values (0.975 and 0.986, respectively). The receiver operating characteristic curve revealed that the ions of m/z 739.5, m/z 831.5, m/z 847.6, and m/z 859.6 were the most specific and characteristic candidate biomarkers for quality assessment of DSCs during accelerated storage. Finally, this method was validated to be qualified in precision (RSDintraday ≤ 9.65% and RSDinterday ≤ 9.36%). In conclusion, the results showed that the well-established iKnife–REIMS method was high-throughput, rapid, and reliable in the real-time quality assessment of DSCs.

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Section: Results and Discussionmentioning

confidence: 99%

In Situ Quality Assessment of Dried Sea Cucumber (Stichopus japonicus) Oxidation Characteristics during Storage by iKnife Rapid Evaporative Ionization Mass Spectrometry

Song

Zhao

Dai

et al. 2021

J. Agric. Food Chem.

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“…The compounds detected in a range of m/z 600–1000 could be tentatively identified as phosphatidylcholine, phosphatidylethanolamine, and phosphatidylinositol [24]. The compounds, such as triglycerides, phenolic acids, and amino acids normally detected in animal‐derived samples, were not acquired in the sorghum samples [22, 23]. The tremendous diversity in the metabolome consists of complex mixtures of small molecular metabolites, in which individual compounds vary in abundance by six or more orders of magnitude, making it unrealistic to develop a single analytical method that enables us to measure all metabolites in a sample simultaneously.…”

Section: Resultsmentioning

confidence: 99%

“…There was no clear clustering observed between different geographic origins of sorghum using PCA modeling (Figure 2A). It is reported that PCA data treatment before LDA could reduce input variables and the chance of over‐fitting that may occur in LDA [23]. Thus, we evaluated the capabilities of this method by constructing a PCA–LDA model.…”

Section: Resultsmentioning

confidence: 99%

“…The obtained MS fingerprinting profile can be subsequently used for discrimination analysis by using proper chemometric models. For example, REIMS has been used for meat adulteration, fish fraud, animal species origin, krill phospholipids and pistachio authenticity, and distinguishing products from different food processing [20][21][22][23][24][25][26]. However, the iKnife used in these methods is not suitable for poorly conductive samples, such as pistachio and grain samples [27].…”

Section: Introductionmentioning

confidence: 99%

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Real‐time traceability of sorghum origin by soldering iron‐based rapid evaporative ionization mass spectrometry and chemometrics

Liu

Wang²,

et al. 2022

Electrophoresis

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Sorghum is an important grain with a high economic value for liquor production.Tracing the geographical origin of sorghum is vital to guarantee the liquor flavor. Soldering iron-based rapid evaporative ionization mass spectrometry (REIMS) combined with chemometrics was developed for the real-time discrimination of the sorghum's geographical origin. The working conditions of soldering ironbased ionization were optimized, and then the obtained MS profiling data were processed using chemometrics analysis methods, including principal component analysis-linear discriminant analysis and orthogonal projection to latent structures discriminant analysis (OPLS-DA). A recognition model was established, and discriminations of sorghum samples from 10 provinces in China were achieved with a correct rate higher than 90%. On the basis of OPLS-DA, the specific ions of m/z 279.2327, 281.2479, and 283.2639 had relatively strong discrimination power for the geographical origins of sorghum. The developed method was successfully applied in the discrimination of sorghum origins. The results indicated that the soldering iron-based REIMS technique combined with chemometrics is a useful tool for direct, fast, and real-time ionization of poor conductivity samples and acquisition of metabolic profiling data.

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“…83 Gao et al combined REIMS with multivariate analysis to differentiate between leather products sourced from different animals, a method that would be beneficial in leather product testing and authenticity confirmation. 84…”

Section: Forensics and Securitymentioning

confidence: 99%

Applications of ambient ionization mass spectrometry in 2021: An annual review

Rankin‐Turner

Reynolds

Turner

et al. 2022

Analytical Science Advances

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Ambient ionization mass spectrometry (AIMS) has revolutionized the field of analytical chemistry, enabling the rapid, direct analysis of samples in their native state. Since the inception of AIMS almost 20 years ago, the analytical community has driven the further development of this suite of techniques, motivated by the plentiful advantages offered in addition to traditional mass spectrometry. Workflows can be simplified through the elimination of sample preparation, analysis times can be significantly reduced and analysis remote from the traditional laboratory space has become a real possibility. As such, the interest in AIMS has rapidly spread through analytical communities worldwide, and AIMS techniques are increasingly being integrated with standard laboratory operations. This annual review covers applications of AIMS techniques throughout 2021, with a specific focus on AIMS applications in a number of key fields of research including disease diagnostics, forensics and security, food safety testing and environmental sciences. While some new techniques are introduced, the focus in AIMS research is increasingly shifting from the development of novel techniques toward efforts to improve existing AIMS techniques, particularly in terms of reproducibility, quantification and ease-of-use.

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Real-time authentication of animal species origin of leather products using rapid evaporative ionization mass spectrometry and chemometric analysis

Cited by 13 publications

References 46 publications

In Situ Quality Assessment of Dried Sea Cucumber (Stichopus japonicus) Oxidation Characteristics during Storage by iKnife Rapid Evaporative Ionization Mass Spectrometry

In Situ Quality Assessment of Dried Sea Cucumber (Stichopus japonicus) Oxidation Characteristics during Storage by iKnife Rapid Evaporative Ionization Mass Spectrometry

Real‐time traceability of sorghum origin by soldering iron‐based rapid evaporative ionization mass spectrometry and chemometrics

Applications of ambient ionization mass spectrometry in 2021: An annual review

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