Patent · US Expired

Organic peptide containing substance recovered from blood having insulin-like activity

US4139611A · kind A · utility

2Cited by

0References

4Claims

0Family size

Assignee

Helmut Mittenzweig · DE

Inventors

Adolf Wacker · Neu-Isenburg, DE
Dorthe Wacker · Neu-Isenburg, DE
Klaus Pohler · Wiesbaden, DE
Hellmut Mittenzwei

Key dates

Filing date	Nov 3, 1977
Grant date	Feb 13, 1979
Priority date	—
Expiry date	Nov 3, 1997

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S530/83
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

Organic peptide containing substances with insulin-like activity derived from blood or a blood component of a warm-blooded animal, which comprises the steps of pre-treating the blood or blood component by adjusting the pH thereof to a value of from 2 to 4 or of from 8 to 10, incubating the pre-treated blood at a temperature of from about 15 to about 40.degree. C for a period of at least four hours, cooling the incubated blood to a temperature of less than 10.degree. C, and recovering from the treated blood after neutralization organic peptide substances having a molecular weight of from about 1000 to about 5000, and an insulin-like activity of from about 14 to about 40 .mu.U/mg solid.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.