Evaluation of volatile metabolites as potential markers to predict naturally-aged seed vigour by coupling rapid analytical profiling techniques with chemometrics

Zhang, Tingting; Ayed, Charfedinne; Fisk, Ian D.; Pan, Tong; Wang, Jianhua; Yang, Ni; Sun, Qun

Abstract

Rapid volatile detection methods for seed vigour rely heavily on artificial ageing (AA), however the comparability of volatile organic compounds (VOCs) to natural ageing (NA) and practicability of the detection models were not well known. In this study, VOCs between AA and NA sweet corn seeds were compared and Partial Least Squares Regression (PLS-R) models were constructed based on AA to predict the seed vigour of NA. A total of 33 VOCs were identified, among which aldehydes showed the highest consistency between NA and AA. Furthermore, a AS-PLS-R model with variable importance in projection (VIP > 1) and Pearson Correlation Coefficient (r > 0.9) algorithms, which was built on 3 volatile markers: benzaldehyde monomer, n-nonanal, 1-butanol monomer, achieved the best performance (R2p of 0.901 and RMSEP of 0.050). Therefore, coupling Gas Chromatography- Ion Mobility Spectrometry (GC-IMS) with chemometrics can be an effective way to monitor and predict stored seeds vigour.

Citation

Zhang, T., Ayed, C., Fisk, I. D., Pan, T., Wang, J., Yang, N., & Sun, Q. (2022). Evaluation of volatile metabolites as potential markers to predict naturally-aged seed vigour by coupling rapid analytical profiling techniques with chemometrics. Food Chemistry, 367, Article 130760. https://doi.org/10.1016/j.foodchem.2021.130760

• Journal Article Type: Article
• Acceptance Date: Aug 1, 2021
• Online Publication Date: Aug 3, 2021
• Publication Date: Jan 15, 2022
• Deposit Date: Aug 9, 2021
• Publicly Available Date: Aug 12, 2021
• Journal: Food Chemistry
• Print ISSN: 0308-8146
• Electronic ISSN: 1873-7072
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 367
• Article Number: 130760
• DOI: https://doi.org/10.1016/j.foodchem.2021.130760
• Keywords: General Medicine; Food Science; Analytical Chemistry
• Public URL: https://nottingham-repository.worktribe.com/output/6009051
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S0308814621017660?via%3Dihub