Food or edible material: processes – compositions – and products – Products per se – or processes of preparing or treating... – Hop derived ingredient – including hopping of wort
Reexamination Certificate
2002-12-23
2008-08-19
Corbin, Arthur L (Department: 1794)
Food or edible material: processes, compositions, and products
Products per se, or processes of preparing or treating...
Hop derived ingredient, including hopping of wort
C426S429000, C426S489000
Reexamination Certificate
active
07413758
ABSTRACT:
Disclosed are methods for the production of light stable hop products, useful for the brewing of beer or ale to be stored in clear or green glass containers, which beer or ale will not develop objectionable flavor as a result of exposure to light. Light stable hop products are prepared by double extraction of liquid/supercritical CO2extracted hop solids with ethanol to remove alpha/iso-alpha-acids. Such alpha/iso-alpha-acids may be further removed from the ethanol extraction filtrate obtained in the double extraction process by subjecting such filtrate to an ion exchange medium, or precipitation by a metal ion, heavy metal ion, or alkali metal ion, or hydrogenation to provide an alpha/iso-alpha-acids free filtrate which may be added to the light stable double extracted hop solid residues obtained in the initial double extraction process.
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Goldstein Henry
Murakami Aki A.
Refling Jay R.
Ryder David S.
Seabrooks John R.
Corbin Arthur L
MillerCoors LLC
Quarles & Brady LLP
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