LU Zhao-guang, WAN Qin, MENG Jin, et al. Preparation of Hydroxypropyl--cyclodextrin Inclusion Complex of Volatile Oil in Artemisiae Annuae Herba and Analysis of Its Antiviral Activity[J]. Chinese journal of experimental traditional medical formulae, 2018, 24(18): 11-15.
LU Zhao-guang, WAN Qin, MENG Jin, et al. Preparation of Hydroxypropyl--cyclodextrin Inclusion Complex of Volatile Oil in Artemisiae Annuae Herba and Analysis of Its Antiviral Activity[J]. Chinese journal of experimental traditional medical formulae, 2018, 24(18): 11-15. DOI: 10.13422/j.cnki.syfjx.20181406.
Objective: To prepare and characterize the inclusion complex of volatile oil in Artemisiae Annuae Herba and hydroxypropyl-β-cyclodextrin(HP-β-CD)
and investigate in vitro antiviral activity of this inclusion complex. Method: HP-β-CD inclusion complex of volatile oil in Artemisiae Annuae Herba were prepared by saturated aqueous solution method
hand grinding method and single phase solution method.Some analytical methods were applied for characterization of the inclusion complex.The inhibitory effects of volatile oil in Artemisiae Annuae Herba and its HP-β-CD inclusion complex on respiratory syncytial virus(RSV) and cossac virus type A16(CA16) were investigated by in vitro cell culture method. Result: Single phase solution method was the best inclusion method
and its best inclusion ratio was 80.62% when ratio of HP-β-CD and volatile oil was 8:1
concentration of ethanol was 100%
inclusion temperature was 25℃ and inclusion time was 2 h.A series of evident characteristics suggested the formation of this inclusion complex.The median effective concentration(EC50) of volatile oil in Artemisiae Annuae Herba and its HP-β-CD inclusion complex to RSV were 3.12
0.28 mg·L-1
respectively;and EC50 were 9.14
0.59 mg·L-1 against CA16
respectively. Conclusion: The preparation process of HP-β-CD inclusion complex of volatile oil in Artemisiae Annuae Herba by single phase solution method is stable and feasible
and it can significantly increase inclusion rate of volatile oil in Artemisiae Annuae Herba.Antiviral activity on RSV and CA16 of the inclusion complex is stronger than before inclusion.