Drug – bio-affecting and body treating compositions – Plant material or plant extract of undetermined constitution... – Containing or obtained from camellia
Reexamination Certificate
2007-12-04
2007-12-04
Flood, Michele (Department: 1655)
Drug, bio-affecting and body treating compositions
Plant material or plant extract of undetermined constitution...
Containing or obtained from camellia
C424S774000, C544S276000
Reexamination Certificate
active
10689910
ABSTRACT:
A process for enhancing theanine extraction from plant material through a series of extraction, adsorption and filtration steps. More specifically, disclosed is a process for isolating theanine from a plant material, which includes the steps of: a) contacting the plant material with a solvent to obtain an extract comprising theanine; b) contacting the theanine extract with an adsorbent to obtain a theanine-containing eluate; and c) subjecting the theanine eluate to a filtration step to obtain a theanine-rich extract.
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Ekanayake Athula
Li Jianjun Justin
Chuey S. Robert
Flood Michele
Hackett Ingrid N.
The Procter & Gamble & Company
Zerby Kim W.
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