Food or edible material: processes – compositions – and products – Inhibiting chemical or physical change of food by contact... – Treating liquid material
Reexamination Certificate
2011-04-19
2011-04-19
Wong, Leslie (Department: 1789)
Food or edible material: processes, compositions, and products
Inhibiting chemical or physical change of food by contact...
Treating liquid material
C426S583000, C426S657000
Reexamination Certificate
active
07927641
ABSTRACT:
A method of improving the storage and handling characteristics of a condensed whey permeate (“CWP”) comprising the steps of: (a) obtaining a CWP that: (i) has a total solids content in the range of about 20% to about 75% by weight and has a water content in the range of about 80% to about 25% by weight; (ii) has a lactose concentration of at least 70% by weight of the total solids content; and (iii) is at a pH of less than 8; and (b) treating the CWP with at least a sufficient proportion of alkali to raise the pH to at least 8. Also, a method comprising the steps of: (a) obtaining a CWP that does not exhibit substantial crystallization; and (b) treating the CWP with at least a sufficient proportion of alkali to reduce the amount of crystallization obtained using a 30 mesh screen for a sample of the treated CWP relative to a sample of the untreated CWP when tested after storing for 7 days at a temperature range having an upper limit that is at least 28° C. (50° F.) below the sufficient temperature to dissolve at a pH of about 7 an equivalent concentration of lactose in water to the concentration of lactose to water that is in the untreated CWP.
REFERENCES:
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patent: 4202909 (1980-05-01), Pederson, Jr.
patent: 4342604 (1982-08-01), Evans et al.
patent: 5656309 (1997-08-01), Sawhill
patent: 6905716 (2005-06-01), Selmer-Olsen
patent: 2004/0033289 (2004-02-01), Selmer-Olsen
Harris Joseph M.
Mostyn Paul
Albanesi Todd E.
Booth Albanesi & Schroeder LLC
Westway Feed Products, Inc.
Wong Leslie
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