This invention relates to food processing and, in particular, blanching and dehydration of foods. Conventional blanching and dehydration requires use of steam and forced hot air. This invention is the first to effectively use infrared radiation energy to perform simultaneous blanching and dehydration of fruits and vegetables. Since this technology does not involve the addition of steam or water in the process of blanching, it has been named “infrared dry-blanching” (IDB) technology. IDB is intended to be a replacement for current steam, water and/or microwave blanching methods. It can be used to produce many kinds of value-added dried, refrigerated, frozen and dehydrofrozen foods such as fruit and vegetable products. In general, the advantages of IDB include (1) uniform heating which enhances energy efficiency and limits damage from over-heating, (2) capability of zone heating to address differential density, (3) ability to treat large or small lots with the same piece of equipment, (4) portability, since equipment can be built on wheels, and (5) a safe, non-toxic process with no harmful side-effects to humans or the environment.

An apparatus for enzymatic inactivation of puree, or juice, from vegetable or animal food, having a treatment section of food of vegetable origin obtaining a treated product. The treated product exiting from the treatment section is directed towards an extraction section. The treated product enters the extraction section at a temperature T.sub.0. The apparatus also has a storage and recirculation section having an enzymatic inactivation circuit crossed by a hot product at a temperature T.sub.2 normally about 85° C.-90° C. The main product present in the extraction section is struck, near the sieve, or directly on its surface, by a flow of hot product coming from the enzymatic inactivation section. The mixture so obtained in the extraction section has at least one part of inactivated product and is then discharged through an outlet.

An apparatus for enzymatic inactivation of puree, or juice, from vegetable or animal food, having a treatment section of food of vegetable origin obtaining a treated product. The treated product exiting from the treatment section is directed towards an extraction section. The treated product enters the extraction section at a temperature T.sub.0. The apparatus also has a storage and recirculation section having an enzymatic inactivation circuit crossed by a hot product at a temperature T.sub.2 normally about 85° C.-90° C. The main product present in the extraction section is struck, near the sieve, or directly on its surface, by a flow of hot product coming from the enzymatic inactivation section. The mixture so obtained in the extraction section has at least one part of inactivated product and is then discharged through an outlet.

The present disclosure relates to, inter alfa, processes for improving shelf-life and flavoring of fresh-cut/fresh vegetables, as well as food products produced by these processes. In accordance with the present disclosure, the processes generally include various new combinations of steps such as blanching, air drying, supercritical fluid processing with and without a processing aid, pressurization, de-pressurization, and packaging. The present disclosure further relates to methods of preparing edible food products that incorporate the processed fresh-cut vegetables, as well as the food products produced by these methods.

The present disclosure relates to, inter alfa, processes for improving shelf-life and flavoring of fresh-cut/fresh vegetables, as well as food products produced by these processes. In accordance with the present disclosure, the processes generally include various new combinations of steps such as blanching, air drying, supercritical fluid processing with and without a processing aid, pressurization, de-pressurization, and packaging. The present disclosure further relates to methods of preparing edible food products that incorporate the processed fresh-cut vegetables, as well as the food products produced by these methods.

A blancher includes a tank and auger. The tank has a wall defining an interior space at least partially cylindrical with end walls. The auger is in the interior space and has flights Each flight has a circumferential edge in close proximity to the wall. The flights move food product from one end to the other as the augur is turned. The auger is preferably supported by a trunnion ring extending through the end wall and as the trunnion ring turns the augur and of flights are turned. An inlet is preferably located at one end wall and located along a center line of the augur. An outlet is preferably a discharge chute extending through the other end wall. The auger preferably includes at least one lifting flight between the plurality of flights and the end, such that the lifting flight lifts the food product to the discharge chute.

A blancher includes a tank and auger. The tank has a wall defining an interior space at least partially cylindrical with end walls. The auger is in the interior space and has flights Each flight has a circumferential edge in close proximity to the wall. The flights move food product from one end to the other as the augur is turned. The auger is preferably supported by a trunnion ring extending through the end wall and as the trunnion ring turns the augur and of flights are turned. An inlet is preferably located at one end wall and located along a center line of the augur. An outlet is preferably a discharge chute extending through the other end wall. The auger preferably includes at least one lifting flight between the plurality of flights and the end, such that the lifting flight lifts the food product to the discharge chute.

A process for the production of a nest-shaped food product containing strips of a dried vegetable, preferably a garden vegetable, storable at room temperature for at least 7 days is disclosed. The process involves providing at least one fresh vegetable which has been previously washed, cutting the vegetable into strips, feeding the vegetable strips in metered amounts into a perforated mold, subjecting the strips to a stabilization heat treatment by means of saturated steam, drying the thermally stabilized strips by means of a flow of hot air so as to obtain a nest containing dried strips of vegetable with a moisture content of between 8% and 16% by weight of their total weight. The invention also concerns a nest-shaped food product which is obtained by means of the process and which may optionally contain strips of durum wheat semolina pasta.

A process for the production of a nest-shaped food product containing strips of a dried vegetable, preferably a garden vegetable, storable at room temperature for at least 7 days is disclosed. The process involves providing at least one fresh vegetable which has been previously washed, cutting the vegetable into strips, feeding the vegetable strips in metered amounts into a perforated mold, subjecting the strips to a stabilization heat treatment by means of saturated steam, drying the thermally stabilized strips by means of a flow of hot air so as to obtain a nest containing dried strips of vegetable with a moisture content of between 8% and 16% by weight of their total weight. The invention also concerns a nest-shaped food product which is obtained by means of the process and which may optionally contain strips of durum wheat semolina pasta.

A food processing apparatus including a tank having an inlet end for receiving food product and an outlet end for discharging food product, the tank having an inner wall defining a compartment and including a solid, imperforate wall portion, fluid being contained in the compartment, and a rotatable auger mounted in the compartment, the auger for advancing food product within the compartment from the inlet end toward the outlet end, the auger including flights having a flight wall with a radial edge, a clearance space being defined between the radial edge of the flights and the solid, imperforate wall portion of the inner wall. Flow of fluid through the clearance space may be inhibited. One of the inner wall and the flight wall may include a perforated wall portion. Flow of fluid between the first auger section and the second auger section may be provided through the perforated wall portion.