Use of male flower extract of eucommia ulmoides oliver in preparation of food or medicament for resisting muscle aging

A method of preparing a food or a medicament for preventing or alleviating aging-related muscle hypofunction, comprising the steps of:

• (a) adding a dried product of a male flower of Eucommia ulmoides Oliver into an aqueous solution of an organic solvent with a volume ratio of 65%-80% at a solid-liquid ratio of 1 g:20 mL-60 mL, wherein the organic solvent is ethanol, methanol or n-butanol, extracting at a condition of 20-65° C., and separating to obtain an extracted liquid;
• (b) removing the organic solvent in the extracted liquid, then separating to obtain an extract liquid after adding water for full reconstitution, and drying to obtain a male flower extract of Eucommia ulmoides Oliver;
• and
• (c) combining the male flower extract of Eucommia ulmoides Oliver with a food-acceptable excipient or pharmaceutically acceptable excipient;
• wherein the food comprises a human food and a pet food, and an active ingredient in the male flower extract of Eucommia ulmoides Oliver comprises iridoids;
• wherein the iridoids comprise aucubin, geniposide, geniposidic acid and asperuloside.