# US 11,304,430 B2 · Process and apparatus for extraction at room temperature of juice and puree from food products

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- Number: US 11,304,430 B2
- Document ID: US11304430B2
- Status: Granted
- Kind: B2
- Application number: 15/244,036
- Filed: 2016-08-23
- Published: 2016-12-08
- Granted: 2022-04-19
- Earliest claimed: 2003-10-21
- Applicants: Alessandro Bertocchi
- Inventors: Alessandro Bertocchi
- Web page: https://patentgrep.com/patent/US11304430B2

## CPC

- A23N 1/00: Machines or apparatus for extracting juice (preparation of non-alcoholic beverages, e.g. by adding ingredients to fruit or vegetable juices, A23L2/00; apparatus for making beverages A47J31/00 {; centrifuges B04B}; extracting presses B30B)
- A23L 2/04: Extraction of juices (machines or apparatus for extracting juice A23N1/00, A47J19/00)
- A23L 19/09: {Mashed or comminuted products, e.g. pulp, purée, sauce, or products made therefrom, e.g. snacks (A23L19/01, A23L19/10, A23L27/63 and A23L21/00 take precedence)}
- A23N 1/02: combined with disintegrating or cutting
- A23V 2002/00: Food compositions, function of food ingredients or processes for food or foodstuffs
- A23N: MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS (machines for cutting straw or fodder A01F29/00; disintegrating, e.g. shredding, B02C; severing, e.g. cutting, splitting, slicing B26B, B26D)
- A23L: FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF (preservation thereof A23B)
- A23V: INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION

## Abstract

A process for optimizing the efficiency of extraction at room temperature of juice or puree from pulps of fruit and vegetables, responsive to their consistency. The pulps are first cut and softened in a first section of the machine, where a rotor applies pulses to the pulps in quick succession against a stator having protrusions on the inner surface. The softened product then passes through an extraction section, where the separation is carried out of a main product, which is conveyed in an outlet duct, from the waste solid parts, which are discharged through an outlet. The rotors are mounted on different shafts operated by motors. Both motors are operatively connected to a device that controls the speeds manually, or automatically, responsive to predetermined input parameters, according to the consistency of the product.

## Claims

### Claim 1

A process for extracting, at room temperature, juice or puree from a food product, the process comprising the steps of:
providing the food product having a predetermined consistency;
providing an input parameter related to the consistency of the food product;
providing a machine consisting of:
a softening section of the food product having a first stator and a first rotor provided with a plurality of blades, said first rotor having a first axis and being arranged to rotate at a first speed driven by a first rotor drive means consisting of a first shaft on which the first rotor is mounted and a first motor operating the first shaft, said softening section producing a softened product;
an extraction section arranged downstream of the softening section, and having a second stator and a second rotor, the second rotor having a second axis and arranged to rotate at a second speed driven by a second rotor drive means consisting of a second shaft on which the second rotor is mounted and a second motor operating the second shaft, the first and the second speed being operated independently from each other;
wherein the outlet of the softening section and the inlet of the extraction section are connected to each other by a connection duct;
wherein the connection duct consists of a first connection portion and a second connection portion connected to each other at respective flange portions screwed by bolts, and wherein a resilient member is provided between the flange portions;
wherein the connection duct is internally provided with an inclined surface at an end portion of the connection duct close to the extraction section for providing an axial component to the softened product entering the extraction section, thereby assisting the feeding step of the softened product, which includes a solid or viscous softened product, into the extraction section;
wherein the machine is provided with a speed adjusting means operatively connected to the first rotor drive means and to the second rotor drive means, the speed adjusting means comprising a processor;
wherein the process further comprises the steps of:
entering, in the processor, the input parameter related to the consistency of the food product to be processed;
computing, by the processor, a ratio between the first speed and the second speed, on the basis of the input parameter;
entering, in the softening section, the food product;
actuating the first and the second rotor drive means by the speed adjusting means according to the ratio between the first and the second speed computed by the processor,
wherein the actuating step causes the first shaft to rotate independently from the rotation of the second shaft;
softening the food product by the first rotor rotating at the first speed in the softening section, and conveying all the softened food product in the extraction section through an outlet;
discharging the softened product tangentially from the softening section through the outlet;
feeding, by the inclined connection duct, the softened product downwards from the softening section to the inlet of the extraction section, the feeding of the softened product being carried out axially to the extraction section;
extracting juice or puree from the softened food product by the second rotor rotating at the second speed in the extraction section, and separating extracted juice or puree from waste material;
wherein the softening section and the extraction section are positioned laterally to each other and the connection duct is inclined at a predetermined angle with respect to the vertical direction; and
wherein a setting step is provided for setting the speed of rotation vr of the first rotor, expressed in rpm according to the following equation:
vr
·
∅
i
=
500
÷
2000
wherein ø is the diameter of the circumference described by the blades of the first rotor during rotation about the first axis, and i is the distance between the first axis and the second axis.

### Claim 2 (depends on 1)

The process according to claim 1, wherein said actuating is carried out by adjusting the frequencies of the first and the second rotor according to said ratio in such a way that the first speed in the softening section and the second speed in the extraction section are carried out according to said ratio between the first and the second speed.

### Claim 3 (depends on 1)

The process according to claim 1, wherein the end portion of the connection duct has a frustoconical-shaped surface.