Agilawood formula granule and preparation method thereof

The present invention discloses an agilawood formula granule and a preparation method thereof. The method comprises the following steps: step one, agilawood is used as a raw material, the agilawood iscrushed, and agilawood volatile oil is obtained by a carbon dioxide supercritical method; step two, an agilawood medicinal residue after extracting the volatile oil is extracted by water and concentrating is conducted to obtain an agilawood extractum; step three, the agilawood volatile oil is encapsulated with beta-cyclodextrin to obtain a beta-cyclodextrin clathrate compound of the agilawood volatile oil; and step four, dextrin is mixed evenly with the agilawood extractum and beta-cyclodextrin clathrate compound of the agilawood volatile oil, and granulating and drying are conducted. Every gram of the prepared agilawood formula granule is equivalent to 2.4 g of crude drugs and content of agarotetrol in the granule is between 2.3% and 2.6%. The technology is reasonable in design, and theprepared agilawood formula