Process for producing pectin with a high-to-medium methoxyl cont

Details Process for producing pectin with a high-to-medium methoxyl cont Process for producing pectin with a high-to-medium methoxyl cont

1990-02-12

1991-12-10

Nutter, Nathan M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536128, C08B 3706, C07H 106

Patent

active

050719700

ABSTRACT:
Beet pulp is reduced to small particle size and hydrolyzed in HCl at a low temperature for a long time and then peptized in hot water at 60.degree.-70.degree. C. for about one hour to produce an aqueous pulp slurry that is screened to recover the liquid which is filtered and mixed with aluminum chloride to lower the pH about 0.1 pH unit to the range of 1.8-2.25 pH. Ammonium hydroxide is then added to raise the pH to about 4.0-4.5 to form an aluminum pectinate precipitate, which is washed with an acidified alcoholic liquid to produce high-to-medium methoxyl pectin which is separated and dried to a stable powder. Waste streams are converted to animal feed or are recovered and recycled.

REFERENCES:
patent: 2550705 (1951-05-01), Maclay et al.
patent: 2577232 (1951-12-01), Cole
patent: 2626706 (1953-01-01), Bishop
patent: 2647890 (1953-08-01), Bishop
patent: 2703758 (1955-08-01), Leo et al.
patent: 2801178 (1957-07-01), Leo et al.

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