Earthworm Protein Powder produced by conventional production methods had a problem that microbes contained in the earthworm are not sufficiently sterilized, depending on the drying step by vacuum freeze-drying and the like. Although measures such as alcohol sterilization were taken, these measures also had problems of increased labor and elongated period and thus of increased cost, and thus, there existed a demand for measures to solve the problems.

An object of the present invention is to provide a simple and easy method of producing an innoxious dry earthworm powder, while suppressing inactivation of the enzymes contained in the Earthworm Protein Powder.

After intensive studies to solve the problem above, the inventors have found that it is possible to solve it by heating the earthworm powder at a particular temperature after freeze-drying, and made the present invention.

Earthworm extract--Lumbrokinase is a new enzyme supplement has been shown to have clinical application value. It’s more and more used in clinical practice, such as in the heart, cerebrovascular, endocrine and respiratory system disease.In addition to clinical medicine, Lumbrokinase is also widely used in file of food, nutraceutical products and cosmetics industries.

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