Process for producing a low-molecular weight peptide composition

Details Process for producing a low-molecular weight peptide composition Process for producing a low-molecular weight peptide composition

1981-07-01

1984-06-05

Jones, Raymond N.

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Recombinant dna technique included in method of making a...

426 7, 426 32, 426 42, 426 44, 426 46, 426 52, 426 56, 426656, 260112R, C12P 2106, A23J 100, A23L 120, A23L 131

Patent

active

044528884

ABSTRACT:
A low-molecular weight peptide composition mainly based on dipeptides and tripeptides is produced by dispersing protein raw material from any suitable source in water at a concentration of 5 to 20 w/v %, adjusting the pH of the dispersion to 1 to 4 with an acid, adding at least two acid proteases to the dispersion, and permitting enzymatic proteolysis to take place for a desired period of time at a suitable temperature while supressing the formation of free amino acids. Also provided is a nutrient agent comprising the thus produced low-molecular weight peptide composition mainly based on dipeptides and tripeptides wherein the contents of free amino acids and those peptides having a molecular weight of at least 700 are individually 20% by weight or less. The nutrient agent is useful in medical treatment.

REFERENCES:
patent: 2364008 (1944-11-01), Stuart
patent: 2473255 (1949-06-01), Parfentjev
patent: 4138500 (1979-02-01), Fulger et al.
patent: 4282319 (1981-08-01), Conrad
T. Nakadai et al., J. Ferment. Technol., vol. 54, No. 12, (1976), pp. 872-884.
Proc. IV Int. Cong. Food Sci. & Technol. (1974), vol. V, pp. 96-102.
Br. J. Nutrition, vol. 33, No. 1, (Jan. 1975), pp. 95-100.

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