The invention provides an acidic
Macadamia nut glycoprotein and a production method thereof. The production method mainly comprises the steps of adding water into defatted oil
meal, carrying out boiling, adding an alkaline solution into precipitates to extract
glycoprotein, separating acidic
protein by an acidity gradient
precipitation separating technology, and then, carrying out
dewatering and
drying, thereby obtaining the acidic
Macadamia nut glycoprotein. According to the method, oil
meal resources of Macadamia nuts are fully utilized, the production process is simple, the purification method is easy to operate, the product purity reaches up to 96% or more, the utilization ratio of resources is further increased, and waste
discharge is also reduced. The invention further provides a glycoprotein product which has the bioactivity of resisting oxidation, propagating probiotics and the like. Simultaneously, the invention further provides a coproduction method of
Macadamia nut proteins,neutral polysaccharides and acid glycoproteins. Three kinds of products, i.e., the Macadamia
nut proteins, the neutral polysaccharides and the acid glycoproteins can be simply, conveniently and efficiently obtained from the defatted oil
meal, the process is simple, production and popularization are facilitated, and thus, the method has a good application prospect.