A fresh vegetable foodstuff such as fruit, vegetables, grains or nuts is treated to reduce microbial contamination (UV-C irradiation, preferably in a CO2 atmosphere, preferably at-1 to +4�� C.) and/or to induce protective phytoalexins (UV-A, UV-B and UV-C irradiation) and/or to destroy aflatoxins (U
A fresh vegetable foodstuff such as fruit, vegetables, grains or nuts is treated to reduce microbial contamination (UV-C irradiation, preferably in a CO2 atmosphere, preferably at-1 to +4�� C.) and/or to induce protective phytoalexins (UV-A, UV-B and UV-C irradiation) and/or to destroy aflatoxins (UV irradiation, primarily UV-C). A modular system can be readily adapted to different foodstuffs. It can include treatment modules and support modules (e.g. for cleaning elements of the treatment modules, providing them with controlled environments, and controlling the input of foodstuffs so they are susceptible to treatment).
대표청구항▼
The invention claimed is: 1. A method for treatment of a raw vegetable foodstuff selected from fruits, vegetables, grains and nuts, so as (a) to reduce microbial contamination, (b) to reduce aflatoxin content, and (c) to cause the raw vegetable foodstuff to generate phytoalexins, said method compri
The invention claimed is: 1. A method for treatment of a raw vegetable foodstuff selected from fruits, vegetables, grains and nuts, so as (a) to reduce microbial contamination, (b) to reduce aflatoxin content, and (c) to cause the raw vegetable foodstuff to generate phytoalexins, said method comprising exposing the raw vegetable foodstuff to UV radiation in a wavelength range comprising at least a portion of each one of the UV-A, UV-B and UV-C radiation bands, wherein exposing the raw vegetable foodstuff to the UV radiation is carried out in an atmosphere of at least 70% of V/V of carbon dioxide. 2. The method according to claim 1, wherein the vegetable foodstuff is selected from the group consisting of apples, bananas, beans, carrots, celery, grapes, grapefruits, kumquats, lemons, limes, oranges, parsnips, peaches, pears, peas, peppers, potatoes, soybeans, sweet potatoes and tomatoes. 3. The method according to claim 1, wherein the vegetable foodstuff is disposed in a monolayer for treatment. 4. The method according to claim 1, wherein the vegetable foodstuff consists of a multiplicity of discrete elements and is treated so that all surfaces of all elements are irradiated. 5. A method for treatment of a raw vegetable foodstuff selected from fruits, vegetables, grains and nuts, so as (a) to reduce microbial contamination, (b) to reduce aflatoxin content, and (c) to cause the raw vegetable foodstuff to generate phytoalexins, said method comprising exposing the raw vegetable foodstuff to UV radiation in a wavelength range comprising at least a portion of each one of the UV-A, UV-B and UV-C radiation bands, wherein the foodstuff is subjected to a cooling treatment such that the surfaces of the foodstuff are maintained in the temperature range-1 to +4�� C. while exposing the raw vegetable foodstuff to the UV radiation. 6. The method according to claim 5, wherein exposing the raw vegetable foodstuff to the UV radiation is carried out in an atmosphere of at least 70% V/V of carbon dioxide. 7. The method according to claim 5, wherein the vegetable foodstuff is selected from the group consisting of apples, bananas, beans, carrots, celery, grapes, grapefruits, kumquats, lemons, limes, oranges, parsnips, peaches, pears, peas, peppers, potatoes, soybeans, sweet potatoes and tomatoes. 8. A method according to claim 5, wherein the vegetable foodstuff is disposed in a monolayer for treatment. 9. A method according to claim 5, wherein the vegetable foodstuff consists of a multiplicity of discrete elements and is treated so that all surfaces of all elements are irradiated.
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