Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Process of storage or protection
Patent
1989-11-06
1992-03-03
Hill, Jr., Robert J.
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Process of storage or protection
422 42, 422 43, 422112, 422295, 426419, B01J 303, G05D 2200, A01L 900, A23K 3445
Patent
active
050930800
ABSTRACT:
A preservation process and apparatus which serves to preserve respiratory agricultural produces, such as plants, flowers, fruits, vegetables, cereal grain and the like, without necessitating the use of chemical coatings, chemical preservatives, fumigants, or the like. The invention is predicated on the concept of imposing a small positive pressure gradient on the product from the outside to the inside. The selected positive pressure gradient may be of the order of 1-5 psi, which is sufficient to insure positive partial vapor pressure gradients from ambient partial vapor pressure to the internal partial vapor pressure of the product. Such a positive pressure sufficient to ensure a positive partial pressure gradient neutralizes the outward diffusion of moisture and nutrients from the product, and it also retards the respiration rate and thus retards its rated maturity.
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Chemical Engineers Handbook, Defn of Pressure {Gage & Absolute}.
Hill Jr. Robert J.
Singla Abanti B.
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