Industrial continuous process for the preparation of a boswellia extract

Abstract

The present application relates to a kind of plant active ingredient extraction method, specifically to a kind of industrialized continuous preparation method of frankincense extract.The technical problem that the preparation method of existing frankincense extract is solved, using alkaline solvent, AKBA component is easily degraded, leading to the technical problem of the loss of the best active ingredient of frankincense extract.The method of the present application comprises the following steps: 1) the raw material of frankincense is extracted by methanol to obtain residue A and filtrate A;After the concentration of filtrate A, add anion polyacrylamide and filter, the filtrate is adsorbed and eluted by macroporous adsorption resin to obtain frankincense flavone;Residue A is extracted by alcohol organic solvent to obtain filtrate B and residue B;Residue B is extracted by water, concentrated, dried to obtain frankincense polysaccharide;2) filtrate B is first concentrated to alcohol degree 65%-75% and then adsorbed by adsorbent, and the supernatant is collected by filtration;The supernatant is concentrated to alcohol degree 10%-30%, and the first precipitate is obtained by filtration;3) add organic solvent C, stir and rinse, collect the second precipitate by filtration, and dry to obtain frankincense acid extract.

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