Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Patent
1988-05-13
1990-09-11
Nutter, Nathan M.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
536127, C08B 3702, C07H 106, C07H 108
Patent
active
049564587
ABSTRACT:
The present invention is a process for purifying polydextrose to remove manufacturing contaminants such as glucose, sorbitol, citric acid, oligomers, 1,6-anhydroglucose, 5-hydroxymethylfurfural and other low molecular weight constituents by reverse osmosis wherein an aqueous solution of polydextrose is filtered by pressing it tangentially over a porous membrane at high pressure. This invention process produces a purified polydextrose with the 1,6-anhydroglucose content therein reduced to less than about 0.2% (W/W) and a reduction in the 5-hydroxymethylfurfural content to below detectable levels or loss than about 0.01% (W/W), thereby virtually eliminating any bitter taste or musty off-flavor.
REFERENCES:
patent: 2876104 (1959-03-01), Bliudsius et al.
patent: 2876105 (1959-03-01), Jucaitis et al.
patent: 2876106 (1959-03-01), Jucaitis et al.
patent: 2876107 (1959-03-01), Jucaitis et al.
patent: 3544455 (1979-12-01), Adams, Jr. et al.
patent: 3766165 (1973-10-01), Rennhard
patent: 3868465 (1975-02-01), Furda et al.
patent: 3874924 (1975-04-01), Sands et al.
patent: 3876794 (1975-04-01), Rennhard
patent: 3971857 (1976-07-01), Fruda et al.
patent: 4024290 (1977-05-01), Layton
patent: 4042714 (1977-08-01), Torres
patent: 4206049 (1980-06-01), Stana et al.
patent: 4366308 (1982-12-01), Soma et al.
patent: 4382963 (1983-05-01), Klose et al.
patent: 4528206 (1985-07-01), Kastin
patent: 4597981 (1986-07-01), Kastin
patent: 4601829 (1986-07-01), Kaneko et al.
patent: 4622233 (1986-11-01), Torres
patent: 4892938 (1990-01-01), Giovanetto
patent: 4906746 (1990-03-01), Barnier et al.
Spatz, D. D. and Trauberman, L., "How Membranes Separate Profits from Pollution", Reprinted from Food Engineering (Oct. 1975).
Spatz, D. D., "Reverse Osmosis/Ultrafiltration Application to Water Reuse and Material Reclamation", pp. 1-9 (May 1975).
Polydextrose Research Product Bulletin, Pfizer Central Research.
Smiles, R. E., "The Functional Applications of Polydextrose", Chemistry of Foods and Beverages: Recent Developments, p. 305-322 (1982).
Spatz, D. D., "Electroplating Waste Water Processing with Reverse Osmosis", Reprinted from Products Finishing Magazine by Osmonics, Inc.
Gregor, H. P. and Gregor, C. D., "Synthetic-Membrane Technology", Scientific American, 239, pp. 112-128 (Jul. 1978).
Haralson, R. N. and Jonhahl, K. E., "Ultafiltration Aids in Production of High Quality Water for Electronics Manufacture, A Case History" Reprinted from the Proceedings of the 44th International Water Conference, Pittsburgh, Pa. (Oct. 1983).
Bemberis, I. and Neely, K., "Ultrafiltration as a Competitive Unit Process", Reprinted from CEP-Chemical Engineering Progress (Nov. 1986).
Bottino, A. etal., "Ultrafiltration of Hydrosoluble Polymers. Effect of Operating Conditions on the Performance of the Membrane", Journal of Membrane Science, 21, pp. 247-267 (1984).
Gravatt, D. P. and Molnar, T. E., "Recovery of an Extracellular Antibiotic by Ultrafiltration", Membrane Separations in Biotechnology, c. 4, p. 89-97 (1986).
Bunick Frank J.
Graf Robert H.
Luo Shiuh J.
Bell Craig M.
Nutter Nathan M.
Warner-Lambert & Company
LandOfFree
Purification of polydextrose by reverse osmosis does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Purification of polydextrose by reverse osmosis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Purification of polydextrose by reverse osmosis will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1185640