The invention belongs to the technical field of extraction and separation of a
natural product, namely gutta-percha, and discloses a method for extracting and separating gutta-percha from
feces of larvae of Orthosia songi Chen et Zhang. The method comprises the following steps of: with the
feces of larvae of Orthosia songi Chen et Zhang as a
raw material, removing impurities from the
feces and
drying the feces in a dry and cool place; crushing the dried feces of larvae of Orthosia songi Chen et Zhang by using a
machine, and carrying out
vacuum drying; putting treated raw materials into a stirrer, and carrying out heating in a water bath;
drying separated filter residues, decolorizing the filter residue with
acetone, carrying out filtering, and then performing
drying; removing impurities toobtain bioactive components; and mixing the dried filter residues with
petroleum ether, carrying out
reflux extraction, performing filtering to remove impurities, and conducting precipitating to obtain refined gutta-percha. According to the invention, extraction process is few in steps, convenient to operate and short in extraction and
separation time; the obtained extract is high in purity; theprecipitated gutta-percha is good in color, cost in the development process of gutta-percha is effectively reduced, efficient utilization of the feces of larvae of Orthosia songi Chen et Zhang
larva fecula is achieved, and diversified development of an
eucommia ulmoides industry is promoted.