This invention belongs to the field of
Eucommia ulmoides gum extraction technology, specifically relating to a high-purity
Eucommia ulmoides gum extraction process. The invention uses fresh green leaves of
Eucommia ulmoides or rehydrated dried leaves as raw materials. A
rubbing machine is used to separate the leaf pulp and veins. The veins are then subjected to stepwise
enzymatic hydrolysis with four types of biological enzymes, followed by washing with a natural
soap powder solution,
water washing, and
centrifugation to obtain high-purity
Eucommia ulmoides gum. The
cuticle layer naturally present on the surface of
Eucommia ulmoides leaves, which protects the
plant and resists degradation of
plant tissue by external biological enzymes, is damaged, broken, and peeled off after mechanical
rubbing. This facilitates direct contact and
enzymatic hydrolysis between the biological enzymes and the broken leaf
vein tissue encapsulating the
Eucommia ulmoides gum. Stepwise
enzymatic hydrolysis with four types of enzymes further purifies and removes the leaf
vein tissue, exposing the Eucommia ulmoides gum to the solution. Furthermore, the composition of the natural
soap powder is highly similar to the polyisoprene structure of the Eucommia ulmoides gum, binding with the gum and causing it to hydrophilically expand and separate from the
Eucommia ulmoides leaf residue, resulting in high-purity Eucommia ulmoides gum.