Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Patent
1997-03-07
1998-09-01
Kight, John
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
536 185, 536118, 536122, 5361231, 536124, C07H 108
Patent
active
058012400
ABSTRACT:
An improved method of producing semi-refined kappa carrageenan is provided having processing steps including: (a) pre-rinsing carrageenan containing seaweed; (b) cooking the seaweed in a cooking tank containing an aqueous solution of KOH to cause desulfation at the 6-position of the galactose units of the carrageenan, to create recurring 3,6 anhydrous galactose polymers by dehydration and reorientation; (c) washing the seaweed in a neutralizing bath; (d) rinsing the seaweed in water; and, (e) drying and chopping the seaweed, the improvement being monitoring the reaction progress of the desulfation, dehydration and reorientation by continuously measuring oxidation-reduction potential of the aqueous KOH solution and, upon the occurrence of substantial reaction equilibrium of the reorientation, as indicated when the oxidation-reduction potential has reached a pre-determined constant value, stopping the reaction by removal of the seaweed from the aqueous KOH solution. The process is further improved by the batch processing of the seaweed in a single processing basket thereby enabling single handling of the seaweed throughout each of the processing steps (a) through (d). The process is further improved by chopping the seaweed prior to the KOH cooking to simulate homogeneity and to accelerate the reaction process.
REFERENCES:
patent: 4816573 (1989-03-01), Whitaker et al.
1990.
Istini et al., Bulletin of Marine Sciences and Fisheries Koichi University, vol. 14: 49-55, 1994.
Basmal et al., FAO Fish. Rep. pp. 347-351 Abstract Only 1992.
Hoffmann et al., Food Hydrocolloids, vol. 9(4): 281-289 Abstract Only, 1995.
Truus et al., Eesti Tead. Akad. Toim., Keem., vol. 45(1-2) pp. 15-29, 1996.
Bernabe Michael G.
Rideout Christopher S.
Hofbauer Patrick J.
Kight John
Lee Howard C.
Tanvest Limited
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