Yi-ming KONG, Hui-jie YAN, Feng-qian GUO, et al. Preparation and Evaluation of β-Cyclodextrin Inclusion Complex of Volatile Oil in Couplet Medicines of Moslae Herba and Pogostemonis Herba[J]. Chinese journal of experimental traditional medical formulae, 2020, 26(5): 87-94.
DOI:
Yi-ming KONG, Hui-jie YAN, Feng-qian GUO, et al. Preparation and Evaluation of β-Cyclodextrin Inclusion Complex of Volatile Oil in Couplet Medicines of Moslae Herba and Pogostemonis Herba[J]. Chinese journal of experimental traditional medical formulae, 2020, 26(5): 87-94. DOI: 10.13422/j.cnki.syfjx.20191656.
Preparation and Evaluation of β-Cyclodextrin Inclusion Complex of Volatile Oil in Couplet Medicines of Moslae Herba and Pogostemonis Herba
To investigate the pharmacodynamics of volatile oil in couplet medicines of Moslae Herba and Pogostemonis Herba
to establish a method for simultaneous determination of three essential ingredients (thymol
carvacrol and patchouli alcohol) in volatile oil of the couplet medicines by gas chromatography (GC)
to optimize the preparation process of
β
-cyclodextrin (
β
-CD) inclusion complex of volatile oil in the couplet medicines and to confirm the formation of the inclusion complex.
Method:
2
An
in vitro
inflammatory response model was established by hyaluronidase activity inhibition test in order to detect the anti-inflammatory activity of the volatile oil. Also
the antioxidant activity of the volatile oil was assessed by 1
1-diphenyl-2-trinitrophenylhydrazine (DPPH) free radical scavenging method. The inclusion of volatile oil in couplet medicines of Moslae Herba and Pogostemonis Herba was prepared by scaturated aqueous solution method
colloid milling method and grinding method
respectively. GC was used to determine the contents of thymol
carvacrol and patchouli alcohol in volatile oil for optimizing extraction and inclusion processes of volatile oil. Scanning electron microscope
infrared spectroscopy
thermal differential analysis
and X-ray diffraction (XRD) were used to verify the formation of the inclusion complex.
Result:
2
The volatile oil not only inhibited hyaluronidase activity to a certain extent
but also eliminated DPPH and increased with the increase of concentration. There was a good linear relationship between the peak area and concentration of thymol
carvacrol and patchouli alcohol at 0.021 3-0.426
0.020 04-0.400 8
0.022 6-0.452 g·L
-1
(
R
2
>
0.999)
respectively. Their recoveries were 99.59%(RSD 1.6%)
100.15%(RSD 1.5%)
100.70%(RSD 1.4%)
respectively. The colloid milling method was optimized
and the formation of the inclusion complex was verified by the aforementioned methods.
Conclusion:
2
The volatile oil in couplet medicines of Moslae Herba and Pogostemonis Herba has certain anti-inflammatory activity and anti-oxidation ability. The colloid milling method was the best inclusion process for the volatile oil. The established GC has the advantages of simple
sensitive
accurate
reliable and reproducible
which can meet the requirements of simultaneous determination of thymol
carvacrol and patchouli alcohol in the inclusion complex.
G P BETTINETTI , M SORRENTI , S ROSSI , et al . Assessment of solid-state interactions of naproxen with amorphous cyclodextrin derivatives by DSC [J]. J Pharm Biomed Anal , 2002 , 30 ( 4 ): 1173 - 1179 .
E SUIHKO , O KORHONEN , T JÄRVINEN , et al . Complexation with tolbutamide modifies the physicochemical and tableting properties of hydroxypropyl- β -cyclodextrin [J]. Int J Pharm , 2001 , 215 ( 1/2 ): 137 - 145 .
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Related Institution
Anhui Medical College
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