Foods and beverages: apparatus – Non-cooking heat treatment of food
Patent
1978-08-18
1981-02-03
Hornsby, Harvey C.
Foods and beverages: apparatus
Non-cooking heat treatment of food
99404, 99516, 366107, 426431, A23L 120, A23N 1202
Patent
active
042481414
ABSTRACT:
A method and apparatus for debittering soybeans and the like to destroy and extract the bitter taste therefrom caused by enzymes lying next to the bean surface directly beneath the skin. Soybeans are loaded into open baskets with foraminous bottoms suspended from links on a chain conveyor successively and intermittently indexed by ratchet driven sprockets through three zones of a processing tank having an exhaust hood. Water preheated to approximately 198.degree. F. flows through the tank and each zone thereof has a steam manifold therein whereby steam is injected into the first zone to raise the water temperature to approximately 214.degree. F. and bubble and agitate the water and the beans loaded in the baskets immersed therein to expand the skins and explode the jackets to release the volatile gases therefrom. The baskets and beans then travel through the second zone wherein they continue to be agitated by action of steam but wherein the temperature is lowered by the injection of tempering water to approximately 212.degree. F. Thereafter, upon entry into zone three, agitation of the beans continue with temperature also being approximately 212.degree. F. The emerging basket with the treated beans therein is subjected to a cold water spray so that the beans are not hydrated and are surface wet and continued travel of the conveyor inverts the baskets and drops the treated beans therefrom onto a conveyor disposed therebelow for disposal and collection in a container for subsequent treatment in batch tumbler dryers wherein the surface water and the skins are removed from the beans to leave dry bean halves for the usual raw soybean use.
REFERENCES:
patent: 727271 (1903-05-01), Blackmon
patent: 1194495 (1916-08-01), Friedman
patent: 1630676 (1927-05-01), Smith
patent: 2026676 (1936-01-01), Gill
patent: 2692200 (1954-10-01), Olson
patent: 3733202 (1973-05-01), Marmor
Markley-Soybeans and Soybean Products, 1950, vols. I+II, pp. 280, 951, 954-956, 961.
Hornsby Harvey C.
Moore W. Britton
Simone Timothy F.
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