Abstract: An amino dithioperacid thioester compound, a preparation method therefor, and use thereof. The structural formula of compound is as shown in formula I: wherein m=1-11, X is a nitrogen-containing aliphatic heterocyclic ring, and a nitrogen atom in the aliphatic heterocyclic ring is connected to a carbon atom of a thiocarbonyl group. The compounds disclosed by the invention are found to be capable of relieving muscular atrophy and lipolysis caused by cancer cachexia through in-vivo and in-vitro experiments. The compounds are also capable of obviously relieving weight and food intake reduction caused by cancer cachexia in animal experiments, so that the carbamo(dithioperoxo)thioates compounds have the effect on resisting cancer cachexia, can be applied to the treatment of cancer cachexia and related diseases, and become one kind of ideal cancer cachexia treatment medicament.

Abstract: A milk-derived bioactive polypeptide has in vitro antioxidant activity and an immunity-enhancing function, and an amino acid sequence thereof is DELQ. According to in vitro antioxidant and in vitro immunity-enhancing experiments, it is proved that the peptide has good antioxidant activity and promotes immune system activity.