Process for preparing high purity lactose

Details Process for preparing high purity lactose Process for preparing high purity lactose

1977-05-31

1978-07-11

Marantz, Sidney

Sugar, starch, and carbohydrates

Processes

Carbohydrate manufacture and refining

127 31, 127 64, C13K 500

Patent

active

040999831

ABSTRACT:
Lactose crystals of improved purity and reduced color are obtained by washing the lactose crystals in an alkaline wash-bath having a pH within the range of from about 8.5 to about 12.5. The isolated washed crystals exhibit improved purity particularly in the reduction of nitrogen-containing impurities as evidenced by a reduced total Kjeldahl nitrogen content and a substantially white color.

REFERENCES:
patent: 1500770 (1924-07-01), Ryan
patent: 2439612 (1948-04-01), Peebles
patent: 2555211 (1951-05-01), Wallace
patent: 2584158 (1952-02-01), Pratt
patent: 3785865 (1974-01-01), Pollard
Chemical Abstracts, 55:15967i (1961).
S. M. Weisberg, Jour. Dairy Sci., 37, 1106-1115 (1954).

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