Food or edible material: processes – compositions – and products – Processes – Storing solid material under controlled condition
Patent
1978-11-09
1980-04-29
Richman, Barry S.
Food or edible material: processes, compositions, and products
Processes
Storing solid material under controlled condition
422 1, 422 28, 422 29, 422 32, 422 40, 426312, 426320, 426418, A23L 334
Patent
active
042006570
ABSTRACT:
A method of treating an agricultural product, including the steps of placing the product within a storage container; providing a forced air supply to the container; introducing a gaseous chemical into the container, the particular chemical being selected for minimal sorption of the chemical by the product; and circulating the air and chemical mixture within the container through the product at a low rate of flow, utilizing the forced air supply, for a time sufficient to evenly distribute the chemical throughout the product volume. The rate at which the air is circulated is less than approximately 0.006 cfm/bu and is preferably maintained approximately between 0.0015 cfm/bu and 0.0008 cmf/bu. Hydrogen phosphide (phosphine) gas generated from aluminum phosphide is preferred as the chemical when the process is used for fumigation, but other gaseous fumigants exhibiting a low rate of sorption by agricultural products may also be used.
REFERENCES:
patent: 1613186 (1927-01-01), Moffett
patent: 2461649 (1949-02-01), Manning
patent: 3041684 (1962-07-01), Dawson et al.
De La Garza Charles H.
Richman Barry S.
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