Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Patent
1980-03-10
1981-05-26
Brown, Johnnie R.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
252 855R, C08B 3700, C07G 1700
Patent
active
042699754
ABSTRACT:
Guar gum is prepared by hydrating guar splits with sufficient water to provide a total moisture content of 25-80%, extruding the hydrated splits, and grinding them, while wet, preferably to a finely divided state. For most uses the ground gum is then dried, preferably in a flash dryer. Typically the hydration is carried out at 5.degree.-95.degree. C. for at least 1/4 hour; the preferred conditions are 20.degree.-80.degree. C. for 0.5 to 2 hours. The extrusion is conveniently carried out in an extruder provided with a rotatable screw for transporting and working the hydrated splits. Typically grinding is carried out in a hammermill.
REFERENCES:
patent: 2891050 (1959-06-01), Elverum
patent: 3415927 (1968-10-01), Butensky et al.
patent: 3455899 (1969-07-01), Keen
patent: 3855149 (1974-12-01), Bielskis
Tookey, H., et al., Agricultural and Food Chemistry, vol. 11, No. 4, pp. 317-321, 1963.
Sikka, K., et al., Research and Industry, vol. 14, pp. 138-139, 1969.
Molnar Thomas R.
Rutenberg Morton W.
Brown Johnnie R.
Hazel Blondel
Kelley Margaret B.
National Starch and Chemical Corporation
Szala Edwin M.
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