Journal of Zhejiang Agricultural Sciences ›› 2026, Vol. 67 ›› Issue (5): 1256-1263.DOI: 10.16178/j.issn.0528-9017.20240488

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Changes of chemical constituents and pharmacological activities of Hangzhou white Chrysanthemum at different flowering stages and inflorescence opening forms

ZHANG Minda1(), SUN Jian1(), SUN Yuefang2, PENG Xin3, DU Weifeng4, LI Xiaoning4, ZHANG Wenxia1, JIANG Jianming1, WANG Zhi'an1   

  1. 1.Zhejiang Institute of Traditional Chinese Medicine Co. ,Ltd. ,Hangzhou 310023,Zhejiang
    2.Zhejiang Chinese Medical University Medical Pieces Co. ,Ltd. ,Hangzhou 311401,Zhejiang
    3.Ningbo Hospital of Traditional Chinese Medicine,Ningbo 315016,Zhejiang
    4.Tongxiang Agricultural Technology Extension Service Center,Jiaxing 314500,Zhejiang
  • Received:2024-06-17 Online:2026-05-11 Published:2026-05-12
  • Contact: SUN Jian

Abstract:

In this experiment,Hangzhou white Chrysanthemum with different flowering periods and inflorescence opening forms were used as research materials,and the contents of flavonoids,phenolic compounds and polysaccharides in Hangzhou white Chrysanthemum were evaluated. The dynamic changes of the chemical constituents and their correlation with antioxidant and anti-inflammatory activities were discussed. The content of flavonoids and phenolic compounds,as well as their anti-inflammatory and antioxidant activities,were all higher in the bud stage than in other stages. The total phenolic content of unopened tubular flowers of Hangzhou white Chrysanthemum was 21.23 mg·g-1,the total flavonoids content was 15.27 mg·g-1,the scavenging abilities of DPPH and ABTS were 65.48 and 80.63 mg·g-1,and the NO inhibition rate was 68.76%. Under the same flowering period,the total phenolic and total flavonoid contents of Hangzhou white Chrysanthemum mostly showed the state of unopened> partially opened> fully opened;the polysaccharide content of Hangzhou white Chrysanthemum in bud stage was the lowest,and the polysaccharide content of Hangzhou white Chrysanthemum in late flowering stage was the highest,reaching 133.83 mg·g-1. The samples were divided into three groups by cluster analysis and principal component analysis(PCA):unopened samples at the bud stage and early flowering stage,together with partially opened samples at the bud stage,were classified into Group I. Partially opened and fully opened samples at the early flowering stage,together with unopened samples at the full flowering stage, were classified into Group Ⅱ. Partially opened and fully opened samples at the full flowering stage,as well as partially opened and fully opened samples at the late flowering stage,were classified into Group Ⅲ.Among them,luteolin-7-O-β-D-glucuronide, luteoloside,isochlorogenic acid C,isochlorogenic acid A,and quercitrin were identified as the major differential compounds among Hangzhou white Chrysanthemum samples with different flowering stages and inflorescence opening forms. Correlation analysis results showed that phenolic and flavonoid compounds were closely correlated with the antioxidant and anti-inflammatory activities of Hangzhou white Chrysanthemum. Specifically, luteoloside and luteolin-7-O-β-D-glucuronic acid glycoside exhibited the strongest correlation with antioxidant activity,while cryptochlorogenic acid and isochlorogenic acid C demonstrated the highest correlation with anti-inflammatory activity. In conclusion,the contents of flavonoids,polyphenols and polysaccharides in Hangzhou white Chrysanthemum were affected by the flowering period and inflorescence form,and the contents of flavonoids and phenolic compounds were closely related to the antioxidant and anti-inflammatory activities.

Key words: Hangzhou white Chrysanthemum, flavonoid, phenolic, polysaccharides, antioxidant activity, anti-inflammatory activity

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