Journal
PLANTS-BASEL
Volume 10, Issue 8, Pages -Publisher
MDPI
DOI: 10.3390/plants10081661
Keywords
Coreopsis rosea; Coreopsis verticillata; mutant cultivar; metabolomics; dipeptidyl peptidase-IV
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Funding
- Radiation Technology RD program [2017M2A2A6A05018541]
- National Research Foundation of Korea (NRF) - Ministry of Science, ICT & Future Planning
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The study systematically characterized the phytochemical profiles of C. rosea and C. verticillata using ultra-performance liquid chromatography time-of-flight mass spectrometry, and evaluated their anti-diabetic effects through the dipeptidyl peptidase (DPP)-IV inhibitor screening assay. The research identified 40 compounds, with 13 compounds potentially serving as markers for distinguishing among the 32 Coreopsis cultivars. The bio-chemometric models developed in the study could be beneficial in differentiating cultivars as potential dietary supplements for functional plants.
Coreopsis species have been developed to produce cultivars of various floral colors and sizes and are also used in traditional medicine. To identify and evaluate mutant cultivars of C. rosea and C. verticillata, their phytochemical profiles were systematically characterized using ultra-performance liquid chromatography time-of-flight mass spectrometry, and their anti-diabetic effects were evaluated using the dipeptidyl peptidase (DPP)-IV inhibitor screening assay. Forty compounds were tentatively identified. This study is the first to provide comprehensive chemical information on the anti-diabetic effect of C. rosea and C. verticillata. All 32 methanol extracts of Coreopsis cultivars inhibited DPP-IV activity in a concentration-dependent manner (IC50 values: 34.01-158.83 mu g/mL). Thirteen compounds presented as potential markers for distinction among the 32 Coreopsis cultivars via principal component analysis and orthogonal partial least squares discriminant analysis. Therefore, these bio-chemometric models can be useful in distinguishing cultivars as potential dietary supplements for functional plants.
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