Hot air disinfestation of fruit and vegetables
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A23L-003/16
A23L-001/212
출원번호
US-0270608
(1988-11-14)
발명자
/ 주소
Armstrong, John W.
Hu, Benjamin K. S.
Brown, Steven A.
Hasen, James D.
출원인 / 주소
The United States of America as represented by the Secretary of Agriculture
대리인 / 주소
Silverstein, M. HowardFado, John D.Connor, Margaret A.
인용정보
피인용 횟수 :
5인용 특허 :
0
초록▼
Fruit and vegetable commodities subject to infestation by quarantine pests are disinfested so as to meet quarantine restrictions without adversely affecting the quality of the commodity. The method involves heating the commodity in hot air having a relative humidity of 30-80% until the temperature o
Fruit and vegetable commodities subject to infestation by quarantine pests are disinfested so as to meet quarantine restrictions without adversely affecting the quality of the commodity. The method involves heating the commodity in hot air having a relative humidity of 30-80% until the temperature of the commodity exceeds the thermal death point temperature of the target pest but is not so high as to adversely affect commodity quality. The temperature is held at this temperature until the pest is killed. The method is effective against all life stages of quarantine pests and is suitable for large-scale commercial disinfestation of commodities for movement throught marketing channels, for example, for disinfestation of papayas of tephritid fruit flies such as the Mediterranean fruit fly, the melon fly, and the oriental fruit fly.
대표청구항▼
1. A treatment method for disinfesting a fruit or vegetable commodity of a quarantine pest, which comprises heating the commodity in one or more stages with air having a temperature of about 43° to 49° C. and a relative humidity (RH) of 30-80% until the temperature of the commodity exceeds the therm
1. A treatment method for disinfesting a fruit or vegetable commodity of a quarantine pest, which comprises heating the commodity in one or more stages with air having a temperature of about 43° to 49° C. and a relative humidity (RH) of 30-80% until the temperature of the commodity exceeds the thermal death point temperature of the pest but does not cause external scalding of the commodity and holding the commodity at this temperature until the pest is killed. 2. The method of claim 1 which further includes cooling the heated commodity. 3. The method of claim 1 wherein the commodity is selected from the group consisting of papaya, mango, starfruit, atemoya, lychee, eggplant, pepper, cucumber, and squash. 4. The method of claim 1 wherein the quarantine pest is the Mediterranean fruit fly, melon fly, oriental fruit fly or mango seed weevil. 5. The method of claim 1 wherein said RH of the air is 40-60% and said heating is carried out in one stage, said stage comprising heating the commodity until the temperature of the commodity is 47.2° C. 6. The method of claim 5 wherein the commodity is papayas. 7. The method of claim 5 which further includes immediately cooling the heated commodity to below about 30° C. 8. The method of claim 1 wherein the temperature of said air is about 48° to 49° C. 9. The method of claim 1 wherein the commodity is papayas, said RH of said air is 40-60%, and said heating is carried out in first, second, third, and fourth stages, said first stage comprising heating the papayas until the fruit center temperature (FTC) is about 41° C.; said second stage comprising heating the papayas until the FTC is about 44° C.; said third stage comprising heating the papayas until the FTC is about 46.5° C.; and said fourth stage comprising heating the papayas until the FTC is 47.2° C. 10. The method of claim 9 which further includes immediately cooling the papayas to below about 30° C. after said fourth stage heating. 11. The method of claim 1 wherein the commodity is atemoya, said RH of said air is 40-60%, and said heating is carried out in first and second stages, said first stage comprising heating the atemoya until the FTC is about 45.5° C. and said second stage comprising heating the atemoya until the FTC is 47.2° C. 12. The method of claim 11 which further includes immediately cooling the atemoya to below about 30° C. after said second stage heating. 13. The method of claim 1 wherein the commodity is mangos, said RH of the air is 40-60% said heating is carried out in one stage comprising heating the mangos until the temperature at the seed surface is 48.2° C., and said holding is for three hours. 14. The method of claim 13 which further includes immediately cooling the mangos to below about 30° C. after said holding. 15. A method for disinfesting papayas of the Mediterranean fruit fly, melon fly, or oriental fruit fly, which comprises heating the papayas in air having a relative humidity of 40-60% and a temperature of about 48°-49° C. until the fruit center temperature of the papayas is 47.2° C., and immediately cooling the heated papayas to below about 30° C. 16. A method for disinfesting papayas of the Mediterranean fruit fly, melon fly, or oriental fruit fly, which comprises heating the papayas in first, second, third, and fourth stages in air having a temperature of about 43° to 49° C. and a relative humidity of 40-60%, said first stage comprising heating the papayas in air having a temperature of about 43° C. until the fruit center temperature (FTC) is about 41° C.; said second stage comprising heating the papayas in air having a temperature of about 45° C. until the FTC is about 44° C.; said third stage comprising heating the papayas in air having a temperature of about 46.5° C. until the FTC is about 46.5° C.; and said fourth stage comprising heating the papayas in air having a temperature of about 49° C. until the FTC is 47.2° C., and immediately cooling the heated papayas to below about 30° C.
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이 특허를 인용한 특허 (5)
Williamson Michael Ronald ; Winkleman Paul Martin, Mechanically loaded direct air circulation commodity disinfestation chamber.
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