Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1984-02-29
1984-11-20
Evans, J. E.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
127 36, 127 43, 127 44, 536 41, 536 185, 536124, 568852, 568868, C07C 2914, C07C 3126, C07C 2704, C07G 300
Patent
active
044840128
ABSTRACT:
A method for hydrolyzing coffee extraction residue materials to produce manno-saccharides having a degree of polymerization from 1 to 10 and subsequently neutralizing and reducing said mixture of manno-saccharides to their corresponding alcohols. The coffee material, preferably spent coffee grounds from a commercial percolation system, is hydrolyzed in a Plug Flow tubular reactor in the presence of an acid catalyst, such as sulfuric acid. Depending on the time, temperature, pressure and catalyst concentration selected, manno-saccharides or mannose is produced. The manno-saccharides or mannose produced are separated from coffee residue material in the form of a syrup and neutralized with calcium hydroxide. The neutralized mixture of manno-saccharides or mannose is reduced to their corresponding alcohols or mannitol.
REFERENCES:
patent: 3579380 (1971-05-01), Friese
patent: 4137395 (1979-01-01), Buckl et al.
patent: 4292451 (1981-09-01), deBerardinis et al.
patent: 4445938 (1984-05-01), Verwaerde et al.
Bayha Renee
Fulger Charles V.
Stahl Howard
Turek Evan J.
Donovan Daniel J.
Evans J. E.
General Foods Corporation
Savoie Thomas R.
Walker Sam D.
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