Plant for bringing about enzyme-deactivation in fruit and vegeta

Details Plant for bringing about enzyme-deactivation in fruit and vegeta Plant for bringing about enzyme-deactivation in fruit and vegeta

1984-07-12

1985-10-01

Simone, Timothy F.

Foods and beverages: apparatus

Subjecting food to an enclosed modified atmosphere

Vacuum-producing means

99483, 99516, A23L 1212

Patent

active

045438790

ABSTRACT:
The invention relates to a technological process for deactivating enzymes in fruit and vegetables, and to plant used therefor--tomato being the example adopted. The process basically speaking is one of feeding-in whole tomatoes under vacuum, chopping or mashing them in conditions where residual oxygen is reduced to a minimum--depending upon the degree of vacuum obtainable inside the feeder-tank--and then introducing the tomato in its liquidized state into a pressurized system or circuit designed for operation at whatever temperature represents the optimum for enzyme-deactivation; the introduction of freshly-mashed deaerated tomato into the circuit being such that it mingles with tomato already heated and circulating therein. Plant for carrying such a process into effect comprises a closed circuit operating either at atmospheric or imposed pressure, in which heated tomato is caused to circulate by means of a pump, and a mincer which chops up the raw produce in conditions where attendant oxygen is minimal, prior to its entry into the circuit; also, a heat exchanger for raising the temperature of tomato circulating within the system, a pump for propulsion of the produce thereinto, and a pump for drawing off the ensuing product therefrom.

REFERENCES:
patent: 3036921 (1962-05-01), Rietz
patent: 3549384 (1970-12-01), Walker et al.
patent: 3873753 (1975-03-01), Nelson et al.

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