Process for selectively separating the alpha-lactalbumin from th

Details Process for selectively separating the alpha-lactalbumin from th Process for selectively separating the alpha-lactalbumin from th

1986-06-17

1988-11-01

Schain, Howard E.

Chemistry: natural resins or derivatives; peptides or proteins;

Proteins, i.e., more than 100 amino acid residues

Albumin

426543, 426657, 530410, 530416, 530833, A23J 120

Patent

active

047821388

ABSTRACT:
This invention relates to a process for selectively separating the alpha-lactalbumin from the proteins of whey; the process comprises a heat treatment of the whey previously concentrated to a dry matter content of 10 to 40% by weight, and acidified to a pH of less than 4, preferably from 3 to 3.5, said heat treatment being carried out at a temperature not exceeding 75.degree. C., preferably from 45.degree. to 75.degree. C., for a duration of 15 seconds to 1 hour so as selectively to precipitate the alpha-lactalbumin; this heat treatment is followed by the recovery of the alpha-lactalbumin in the form of a precipitate and possibly of the other lacto-proteins remaining in solution in the residual whey. The process presents the advantage of being simple to carry out and being of low cost.

REFERENCES:
patent: 3423208 (1969-01-01), Kuipers
patent: 3728327 (1973-04-01), Frazeur et al.
patent: 3930039 (1975-12-01), Kuipers
patent: 4352828 (1982-10-01), Rialland et al.
patent: 4485040 (1984-11-01), Roger et al.
Chem. Abstracts, 85, 76484m, Marshall et al, 1976.

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