Food or edible material: processes – compositions – and products – Inhibiting chemical or physical change of food by contact... – Treating liquid material
Reexamination Certificate
2006-12-26
2006-12-26
Cano, Milton I. (Department: 1761)
Food or edible material: processes, compositions, and products
Inhibiting chemical or physical change of food by contact...
Treating liquid material
C426S422000, C426S423000, C426S442000
Reexamination Certificate
active
07153534
ABSTRACT:
A premix composition for clarifying beverages like beer includes, by weight, (a) about 40 to 90%, preferably 60–85%, of silica xerogel having less than 10% water therein, preferably 5% or less, and a particle size, as defined by its mean volume average diameter MV, in both the dry state and as a 10% aqueous slurry, of less than 50μ, preferably about 5–30μ, and (b) about 10 to 60%, preferably 15–40%, of crosslinked polyvinylpyrrolidone having a particle size as defined, in the dry state, of about 10 to 50μ, and about 30–60μ in a 10% aqueous slurry, and a process of obtaining, chill-haze stabilized beer with substantial reduction in high molecular weight proteins, as well as polyphenols, flavanoids and tannins, in an efficient and effective single-step process at a rapid filter-flow rate, with undetectable residual soluble plyvinylpyrrolidone thereafter, and no microbiological growth in the premix, effective haze stability after time, and advantageous redispersibility of the premix used in the process.
REFERENCES:
patent: 4636394 (1987-01-01), Hsu
patent: 4975405 (1990-12-01), Okamura et al.
patent: 5149553 (1992-09-01), Berg et al.
Mola Andrew
Rehmanji Mustafa
Cano Milton I.
Davis William J.
ISP Investments Inc.
Katz Walter
Pearse Adepeju O.
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