34results about How to "Enhance the function of resisting exogenous stimuli" patented technology

The invention relates to the field of protein, in particular to biologically active polypeptide SQSKVLPVPE and a preparation method and application thereof. The biologically active polypeptide SQSKVLPVPE has an amino acid sequence of Ser-Gln-Ser-Lys-Val-Leu-Pro-Val-Pro-Glu. After in vitro antioxidation experiments and in vivo anti-aging experiments are conducted, it is verified that the polypeptide SQSKVLPVPE has good biologically antioxidation activity and anti-aging activity; on the one hand, the biologically active polypeptide SQSKVLPVPE has good antioxidation activity so that free radicalsin the human body can be cleared, and the quality of life can be improved; on the other hand, in vivo anti-peroxidase activity can be improved, and the resistance of the human body to exogenous stimuli is enhanced, so that the chance of aging, senility and illness of the human body is reduced, and the biologically active polypeptide SQSKVLPVPE has great importance to the development of food, health products and medicine which have antioxidation and anti-aging functions

The present invention relates to the field of proteins, and in particular relates to biologically active polypeptide QQQTEDELQDKIHPF and a preparation method and application thereof, and the amino acid sequence of the biologically active polypeptide QQQTEDELQDKIHPF is Gln-Gln-Gln-Thr-Glu-Asp-Glu-Leu-Gln-Asp-Lys-Ile-His-Pro-Phe. In-vitro antioxidant experiments and in-vivo anti-aging experiments verify the biologically active polypeptide QQQTEDELQDKIHPF has good antioxidant biological activity and anti-aging activity, on the one hand, the biologically active polypeptide QQQTEDELQDKIHPF has goodantioxidant activity, can remove free radicals in the body and improves the quality of life; on the other hand, the biologically active polypeptide QQQTEDELQDKIHPF can enhance in-vivo anti-peroxidasesystem vitality, enhances the exogenous stimulus-resistant function of the body so as to reduce the probability of aging, senility and illness of the body, and has very important significance for development of food, health care products and drugs with anti-aging and antioxidant functions.

The invention relates to the protein field, in particular to bioactive polypeptide DKLAQ as well as a preparation method and an application thereof. An amino acid sequence of the bioactive polypeptideDKLAQ is Asp-Lys-Leu-Ala-Gln. In vitro anti-oxidation experiments and in vivo anti-aging experiments prove that the polypeptide DKLAQ has the better anti-oxidation bioactivity and anti-aging activity, on one hand, the bioactive polypeptide DKLAQ has better anti-oxidation activity and can scavenge free radicals in organisms and improve the quality of life; on the other hand, the bioactive polypeptide DKLAQ can improve the vitality of in vivo anti-peroxidase systems and enhance functions of organisms for resisting exogenous stimulation to reduce the probability of organism aging, senescence anddisease and has very important significance in development of food, healthcare products and drugs with anti-oxidation and anti-aging functions.

The invention relates to the field of proteins, in particular to a bioactive polypeptide KVTPYQA, a preparation method thereof and an application of the bioactive polypeptide. The amino acid sequenceof the bioactive polypeptide KVTPYQA is Lys-Val-Thr-Pro-Tyr-Gln-Ala. An in-vitro antioxidant experiment and an in-vivo anti-aging experiment verify that the polypeptide KVTPYQA has good antioxidant biological activity and anti-aging activity. On one hand, the bioactive polypeptide KVTPYQA has good antioxidant activity, free radicals in a body can be removed, and life quality can be improved. On the other hand, in-vivo anti-peroxidase system activity can be improved, the exogenous stimulation resisting function of the body is enhanced, so that the probability of aging, senescence and sickness of the body is reduced, and the bioactive polypeptide KVTPYQA is of great significance for developing food, health care products and medicines with antioxidant functions and anti-aging functions.