Journal
MOLECULES
Volume 27, Issue 18, Pages -Publisher
MDPI
DOI: 10.3390/molecules27185789
Keywords
Lonicerae japonicae flos; anti-influenza virus activity; quality evaluation; chemical pattern recognition; quality-affecting factors; neuraminidase
Funding
- Special Project for Sustainable Development of Shenzhen Science and Technology Innovation Committee [KCXFZ20201221173005015]
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This study identified six bioactive compounds in Lonicerae japonicae flos and established chemical pattern recognition models for quality evaluation. The results showed that the cultivation pattern significantly affected the anti-influenza effect of Lonicerae japonicae flos, with the wild variety exhibiting higher effectiveness. Additionally, there was no significant difference in quality among Lonicerae japonicae flos samples with different processing methods and geographical origins.
Lonicerae japonicae flos (LJF, Lonicera japonica Thunb.) is adopted as a core herb for preventing and treating influenza. However, the anti-influenza virus components of LJF and the impact of quality-affecting factors on the anti-influenza activity of LJF have not been systematically investigated. In this study, a strategy integrating anti-influenza virus activity, ultrahigh-performance liquid chromatography fingerprint and chemical pattern recognition was proposed for the efficacy and quality evaluation of LJF. As a result, six bioactive compounds were screened out and identified as neochlorogenic acid, chlorogenic acid, cryptochlorogenic acid, 4,5-Di-O-caffeoylquinic acid, sweroside and secoxyloganin. Based on the bioactive compounds, chemical pattern recognition models of LJF were established by a linear discriminant analysis (LDA). The results of the LDA models and anti-influenza virus activity demonstrated that cultivation pattern significantly affected the anti-influenza effect of LJF and that the neuraminidase inhibition rate of wild LJF was significantly higher than that of cultivated LJF. Moreover, the quality of LJF samples with different processing methods and geographical origins showed no obvious difference. Overall, the proposed strategy in the current study revealed the anti-influenza virus components of LJF and provided a feasible method for thequality evaluation of LJF, which has great importance for assuring the clinical effect against influenza of LJF.
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