MXPA98002294A

MXPA98002294A - Cereal barks with rell

Info

Publication number: MXPA98002294A
Application number: MXPA/A/1998/002294A
Authority: MX
Inventors: Jeanjacques Desjardins; Roman Deutsch; Jean Horisberger; Ernst Heck
Original assignee: Societe Des Produits Nestle Sa
Priority date: 1997-03-25
Filing date: 1998-03-24
Publication date: 1999-05-31

Abstract

The present invention relates to edible wafers containing an edible stuffing, they are prepared with ingredients that are cooked by extrusion, which include a cereal ingredient and are extruded in a strip of baked product by extrusion, the product strip is passed to a pressing device, heated to hot press the product web while it is still thermoplastic to form cavities in the web defining wafer structures in a row, and then cuts are made between the waffle structures, a stuffing of food product is introduced inside of the cavity of wafer structure and the band is cut so as to obtain filled wafers

Description

* CEREAL BARKS WITH FILLING DESCRIPTION OF THE INVENTION The subject of the present invention is a process for preparing cereal wafers with filling and an installation for the start-up of the process. EP0638239 (F. Paquier) describes a * 10 machine for industrial manufacture of edible wafers intended to contain food, the machine making the cut of individual pieces of dough in a floor of eventually floured dough, the positioning of said pieces in a mold with relief and transfer it to a baking oven. EP0293552 (O. Nockemann) describes a method of preparing cereal wafers with filling, in which it is prepared by means of of the preparation of cereal wafers cooked or dehydrated with walls that serve to stagnate and relatively elastic that can be filled with filling either a culinary preparation in subdivided form or a culinary preparation Pre-molded portion adapted to the size and shape of the inner part of the wafer, namely a frozen preparation intended to be reheated in a microwave oven after being placed in the wafer. EP0487757 (SOCIETE DES PRODUITS NESTLE SA) describes a method of cutting a coextruded cooked food product composed of an external cover based on cereal and an internal filling of any type, in which the product is cut by stamping a matrix between two cylindrical surfaces while the outer cover is still thermoplastic after coextrusion firing. The present invention has as its object proposing an uninterrupted preparation procedure of cereal wafers with filling that allows saving at any subsequent stage of cooking or drying. For this purpose, in the procedure of In the preparation of cereal wafers with filling according to the present invention, at least one strip of flattened cereal is manufactured by extrusion cooking, at least one row of hot-pressing is formed by hot pressing. cavities in the still thermoplastic extruded band, transverse incisions are made in the band between the cavities, a food filler is inserted into the cavities, the band is cut longitudinally while the ends of the transverse incisions are cut, and the wafers are collected with individual fillings so ob ended. Also, the installation to put in the process according to the present invention proceeds comprises an extrusion cooking device, a hot forming device, a transverse incision device, a filling device and a longitudinal cutting device. Preferably, the cooking device by The extrusion comprises a double thread extrusion machine whose drawing mold has one or more slot-shaped exit holes. Surprisingly, the present method and the present installation allow effectively save at any subsequent stage of cooking or drying. In effect, the flattened cereal strip is already cooked at the moment in which it is made by hot pressing and the wafers thus made are thermally immediately filled and ready for consumption without requiring any subsequent cooking or drying operation. In the present example, the term "flattened cereal strip" is understood as a flattened product strip based on cereal, namely a product based on flour or inflated cereal semolina. To start up the present procedure, you can make the band of * 10 flattened cereal when baked by extrusion at 120-200 ° C under 6-15 MPa for 10-60 seconds in a twin-screw extrusion machine, a mixture or paste comprising, for example, in measurements by weight, 70-90 measures of cereal flour, 1-15 measures of sucrose, 1-5 measurements of oil or fat and 0.5-1.2 measurements of sodium chloride to which you can add up to 15 measurements of water. Preferably, wheat, corn, rye and / or barley are used as cereal. It can incorporate for example up to 10 measures of oats to obtain a lighter product. It can be used all kinds of vegetable oils or fats, namely hydrogenated palm oil or coconut fat, for example.

It can be added to the mix up to 3 * measures of dextrose or fructose to facilitate cutting, for example. Up to 0.5 measurements of calcium carbonate can be added to the mixture to promote the inflation of the cooked strip by extrusion, for example. Up to 8 measures of an isolator or of a concentrate of 10 proteins can be added to the mixture, namely proteins, for example soy, to facilitate the coagulation of the product, for example. The mixture may have an amount of water of 6-14% before water is added. HE can add for example up to 15 water measurements so that the mixture has a water quantity of 10-25% before extrusion cooking, 8-12% after extrusion and inflating cooking, and 3- 6% after preparation in hot, for example. The cooked mixture can be extruded by passing it through a drawing mold having at least one outlet hole in the shape of a groove, for example 3-10 cm in length and 0.4-1.5 mm wide, for example. The extruded web can then have a thickness of about 2-7.5 mm followed by inflation after extrusion through said drawing mold, for example. The cavities can be formed by pressing the web between the male and female parts of the smooth surface molds heated to a temperature of 60-90 ° C, for example. The male parts of the smooth surface molds can be provided on the surface of an upper cylinder and the female parts corresponding to said smooth surface molds can be provided on the surface of a lower cylinder of a is a manufacturing device comprising one or more sets of parallel cylinders superimposed, rotating in opposite directions. If the cavities to be made must have a certain depth, it may be preferable to make them in several passages between the male and female parts of the molds with increasing depth which can be provided on several successive sets of cylinders. It is also possible to foresee ejecting the wafers from the molds under the effect of expulsion by air - projected by an orifice * provided at the center of the female and / or male parts of the molds, at the moment in which the male and female parts separate from one another. The band can present at the exit of the extrusion machine a temperature of approximately 80-120 ° C, it can be recommended to pass it, at a distance as short as possible from the stretching mold, between a first set of heated preparation cylinders. a temperature of at least 80 ° C, a second or several sets of dressing cylinders followed can be heated to lower temperatures, see that they are not all hot, and a last set of dressmaking cylinders can even to be cooled, for example. You can also form cavities with a depth of 0.5-3cm and a generally flattened bottom of 4 to 30cm ^ whose shape can be planned so that the wafer is visually attractive while limiting as much as possible the volume of the falls resulting from the cutting of the band, drops that will be recycled preferably at the beginning of the extrusion cooking process or in the filling, after the appropriate grinding, for example.

A filling can then be introduced into the cavities, in particular a salty filling, namely a cheese or meat filling, or a sweet filling, namely a filling of almonds, hazelnuts, inflated cereals, cereal flakes, chocolate and / or or jam, for example. The filling can be introduced in a single operation or by successive layers of different compositions, for example. The selection of the precise composition of the pasta from the cereal wafer can be stopped depending on the selection of the composition of the filling. However, if the filler is too wet, namely that the same present an A, specifically an Aw greater than 0.5 so that a migration of moisture to the paste can be feared, the wafer cavity can be waterproofed by spraying a starch solution therein and passing it under infrared radiation, for example. Likewise, you can prevent a complete coating of the wafer by soaking or glazing, for example. After introducing the filling into the cavities, the wafer can be covered with a paste cover or with an airtight layer.

For example, a layer of sugar or chocolate.

»The transverse incisions in the band between the cavities can be made at the selected moment between the moment in which the band leaves the stretching mold and the instant in which the band is cut lengthwise while the ends of the bands are cut. Transverse incisions just before collecting the wafers with individual padding obtained. The installation for the start-up of the The process then comprises an extrusion cooking device, a hot-working device, a transverse incision device, a filling device, a longitudinal cutting device, and the device of extrusion cooking preferably comprising a twin-screw extrusion machine whose drawing mold has one or more slit-shaped exit holes. The hot-forming device preferably comprises one or more sets of parallel cylinders superimposed which rotate in opposite directions, the male parts of the molds with smooth surfaces being provided on the surface of an upper cylinder and the parts female corresponding to the smooth surface molds being provided on the surface of a lower cylinder. These cylinders can be heated by the circulation of a heating fluid inside the cylinders, the heat being transmitted to the male and female parts of the molds by thermal conduction of the construction material of the cylinders, for example. A final set of cylinders can even be cooled by circulating a cooling fluid, for example. The transverse incision device may comprise two parallel superimposed cylinders rotating in the opposite direction, the surface of the upper cylinder being able to present transverse blades and the surface of a lower cylinder, which may have reception and transport cavities, for example. The filling device may comprise a feed hopper, distribution rollers and equalizing means, for example. The longitudinal cutting device may comprise two parallel cylinders superimposed that rotate in opposite directions, the surface of an upper cylinder may have circular longitudinal blades and the surface of a lower cylinder may have reception and transport cavities, for example. The installation may further comprise a spraying device below the filling device and / or a cooling tunnel above the longitudinal cutting device, for example. The installation according to the present invention is described below with reference to the attached drawing by way of example, in which: Figure 1 schematically represents a side view of an operating mode of the installation, Figure 2 schematically represents a bottom view of the operation form of the installation represented in figure 1, and figure 3 represents a bottom view of various wafer shapes cut on the band. In the embodiment shown in FIGS. 1 and 2, the present installation comprises an extrusion cooking device (1), a hot-forming device (2), a transverse incision device (3), a filling device (4) and a longitudinal cutting device (5).

The extrusion cooking device comprises a double thread extrusion machine (1) whose drawing mold (6) has three outlet holes (7) in the form of grooves. The packaging device (2) comprises a set of superimposed parallel cylinders (20)., 21) which rotate in opposite directions, the male parts (22) of the smooth surface molds being provided on the surface of an upper cylinder (20) and the female parts (23) corresponding to the smooth surface molds being provided for the surface of a lower cylinder (21). The transverse incision device (3) comprises two parallel cylinders superimposed that rotate in the opposite direction, the surface of an upper cylinder (8) having transverse blades (9) and the surface of a lower cylinder (10) presenting reception and transport cavities. (eleven) . The filling device (4) comprises a feed hopper (12), distribution rollers (13) and equalization means (14). The longitudinal cutting device (5) comprises two parallel cylinders superimposed that rotate in opposite directions, the surface of an upper cylinder (15) having longitudinal blades (16) and the surface of a lower cylinder (17) having reception and transport cavities. (eleven) . The installation further comprises a spraying device (18) below the filling device (4) and a cooling tunnel (19) above the longitudinal cutting device (5). As shown in FIG. 3 (it can be imagined that the respective bands run from bottom to top of the figure), rough-cut pieces (24) whose triangular, square, rectangular, S-shaped, shaped, can be cut in the band. V or in circle arcs, for example, may be provided so that the wafers are visually attractive while limiting the fall volume resulting from the cutting of the band as much as possible. The process according to the present invention is described in more detail in the examples presented below by way of illustration and in which the percentages and measurements are given by weight.

* E j emp lo 1 With the help of an installation similar to the one presented in figures 1 and 2, slightly flared wafers are prepared with a depth of 2 cm and a rectangular background of 2 x 7 cm2. In the extrusion machine of this installation, the residence time of the mixture * is 30 sec. , the temperature of 180 ° C and the pressure of 8 MPa. The drawing mold has three exit holes in the form of slots of 7.5 cm in length and 0.9 mm. Wide. The manufacturing device comprises three sets of successive cylinders on which the profiles have a respective height and depth of 1, 1.5 and 2 cm. 'The first set of cylinders is heated to 80 ° C, the second set of cylinders is heated to 60 ° C and the third set is not heated. 20 The extrusion machine is fed with a mixture comprising 87.7 measures of wheat flour, 10.7 measures of white rye flour, 5 measures of soy protein isolate, 2.8 measures of sucrose, 1.9 measures of corn oil, 0.85 measures of sodium chloride, 0.46 measurements of * calcium carbonate and 0.28 measurements of dextrose to which 4.7 measurements of water are added. The mixture also has an amount of water of 18.2% at the inlet of the device, 8.9% after inflation at the exit of the extrusion machine and 3% after the hot preparation. The band has a thickness of 4.5 mm after inflation, the thickness of the walls of the * wafer formed being approximately 1.5 mm.

The wafers are filled with a preparation based on cheese that has an Aw of 0.54 compared to that of its walls.

Eje plo 2 15 Proceed in a manner similar to that described in example 1, except for the fact that the extruder is fed with a mixture comprising 77.3 measures of wheat flour, 9.45 measures of white rye flour, 4.9 measures of isolate of soy proteins, 11.9 measures of sucrose, 2 measures of corn oil, 0.75 measures of sodium chloride, 0.42 measurements of calcium carbonate and 2 measurements of dextrose to which 5.5 measurements of water are added. The mixture presents thus an amount of water of 18% at the entrance of the device, 9.1% after inflation at the exit of the extrusion machine and 4% after the hot preparation. The wafers are filled with a first layer of coarsely crushed hazelnuts, a second layer of chocolate cream with hazelnut and a third layer of inflated rice grains. A layer of chocolate with a wafer layer. ± 10 Example 3 The procedure described in Example 2 is followed to obtain wafers that are filled with a mixture of strawberries and hazelnuts on a caramel background before being bathed with chocolate.

Claims

1. A method of preparing cereal wafers with filling, in which at least one strip of flattened cereal is manufactured by extrusion cooking, is formed by hot pressing at least one row of cavities in an extruded yet thermoplastic web, make transverse incisions * 10 in the band between the cavities, a food filler is introduced into the cavities, the band is cut longitudinally while the ends of the transverse incisions are cut, and the individual filled wafers are collected as well. 15 obtained.

2. The process according to claim 1, wherein the flattened cereal strip is manufactured by extrusion cooking at 120-2000 ° C under 6-15 MPa for 10-60 sec., A mixture comprising, in weight measurements , 70-90 measures of cereal flour 1-15 measures of sucrose, 1-5 measures of oil or fat and 0.5-1.2 measures of sodium chloride to which is added up to 15 25 measurements of water.

3. The process according to claim 1, wherein the cooked mixture is extruded by passing it through a drawing mold having at least one slot-shaped exit hole of 3-10 cm. in length and 0.4-1.5 mm in width.

4. The procedure according to the * claim 1, wherein the cavities are 10 formed by pressing the band between the male and female parts of the molds with smooth surfaces heated to a temperature of 60-90 ° C.

5. The process according to the rei indication 1, in which the cavities have a depth of 0.5-3 cm and a generally flat bottom of 4-30 cm2.

6. The method according to claim 1, wherein the food filler is a salty filling, namely a cheese or meat filling, or a sweet filling, namely a filling of almonds, hazelnuts, inflated cereal, flakes of cereals, chocolate and / or jam.

1 . Installation for the start-up of the process according to one of claims 1-6, comprising an extrusion cooking device (1) a hot-working device (2), a transverse incision device (3) , a filling device (4) and a longitudinal cutting device (5).

8. The installation in accordance with the 10 claim 7, in which the extrusion cooking device comprises a double thread extrusion machine (1) whose drawing mold (6) has one or more exit holes (7) with a groove shape.

9. The installation according to claim 7, in which the manufacturing device (2) comprises one or more sets of parallel cylinders superimposed (20, 21) that rotate 20 in opposite directions, the male parts of the smooth surface molds being provided on the surface of an upper cylinder (20) and the female parts corresponding to the smooth surface molds being provided on the surface 25 of a lower cylinder (21).

10. The installation according to the rei indication 7, in which the transverse incision device (3) comprises two parallel cylinders superimposed that rotate in the opposite direction, the surface of the upper cylinder (8) presenting rans ersal blades (9) and the surface of the lower cylinder (10) presenting reception and transport cavities (11).

11. The installation according to claim 7, wherein the filling device (4) comprises a feed hopper (12), distribution rollers (13) and equalization means (14).

12. The installation according to claim 7, wherein the longitudinal cutting device (5) comprises two parallel cylinders superimposed that rotate in opposite directions, the 20 surface of the upper cylinder (15) presenting circular longitudinal blades (16) and the surface of the lower cylinder (17) presenting the reception and transport cavities (11).

13. The installation according to the rei indication 7, further comprising a spraying device (10) below the filling device (4) and / or a cooling tunnel (19) above the longitudinal cutting device (5). F