Aroma recovery from the thermal hydrolysis of spent grounds

Details Aroma recovery from the thermal hydrolysis of spent grounds Aroma recovery from the thermal hydrolysis of spent grounds

A - Human Necessities

23

F

99/81

A23F 5/46 (2006.01) A23F 5/48 (2006.01)

Patent

CA 2008111

The present invention relates to a process to recover beneficial coffee volatiles such as diacetyl and acetaldehyde from an aroma stream generated by the thermal hydrolysis of spent grounds. The aroma stream is passed over a bed of a non-polar microporous adsorbent and effluent is collected until breakthrough of furfural is detected. The invention also relates to the composition of the recovered/purified coffee aroma and to soluble coffee products containing the coffee aroma.

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