JPH03127945A - Production of tissual film food and apparatus therefor - Google Patents

Abstract

PURPOSE:To obtain a fibrous film food excellent in texture and chewiness by extruding a vegetable protein-containing material as a platy molded body using a twin-screw extruder and then rolling the resultant extrusion molded product through plural roll parts having a specific construction in the direction perpendicular to the extruding direction. CONSTITUTION:A vegetable protein-containing material is extrusion molded through a cooling die 3 of a twin-screw extruder 21 into a platy form and the resultant extrusion molded product (B) is rolled through plural roll parts (4A), (4B) and (4C) in the direction perpendicular to the extruding direction. Respective rolls (4a), (4b), (4c) and (4d) of the aforementioned roll parts (4A) and (4B) are provided with tapered surfaces (4aB), (4bB), (4cB) and (4dB) having prescribed tilt angles (theta1) and (theta2) reducing the diameter from the central parts (C1) and (C2) toward the outer ends (4aA), (4bA), (4cA) and (4dA). Furthermore, the respective roll parts are constructed so as to decrease the tilt angles thereof in the extruding direction (D) (theta1>theta2). The tilt angle of the rolls (4e) and (4f) in the final roll part (4C) is 0 deg..

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method and apparatus for producing a textured film food product, and in particular, the present invention relates to a method and apparatus for producing a textured film food product, and in particular, rolling the fibers in a direction perpendicular to the extrusion direction without cutting them, The present invention relates to a novel improvement for obtaining a textured film food containing vegetable protein having a tissue structure with excellent texture.

[Conventional technology] Conventionally, vegetable protein alone or! It is well known to produce foods with a meat-like structure by extruding physical protein mixed with animal protein such as fish or livestock meat, or vegetable protein mixed with starch using a twin-screw extruder. However, the reality is that almost no food products rolled into film are known.

Among them, seaweed is a typical film-like food in Japan, but other film-like foods include film-like food mixed with meat, fish, coffee, etc. (manufactured by Shokuhin Kogyo Co., Ltd.), soybean film (sheet) food (manufactured by Fuji Oil Co., Ltd.), etc. are commercially available.

None of these products is a film-like food with a directional structure, and is constructed so that when it is torn, it cannot be torn in a certain direction.

[Problems to be Solved by the Invention] Conventional film-shaped foods were configured as described above, and therefore had the following problems.

In other words, in recent years, the Japanese diet has become richer and more Westernized, and there is a tendency for people to prefer foods with chewy texture, such as beef shark. be.

Furthermore, in recent years, signs of adult diseases have been appearing in children who consume too much animal fat, and vegetable protein is now being reconsidered.

This trend is particularly noticeable in countries such as the United States, where there is a strong preference to avoid animal protein and consume vegetable protein, but suitable foods that satisfy this preference have not yet been developed. That is the reality.

The present invention has been made to solve the above-mentioned problems, and in particular, rolls the m-fibers in a direction perpendicular to the extrusion direction without cutting them to create a textured structure with extremely excellent texture. An object of the present invention is to provide a method for producing a textured film food containing vegetable protein and an apparatus therefor.

[Means for Solving the Problems] The method for producing a textured film food according to the present invention involves extruding a vegetable protein-containing material into a plate shape through a cooling die of a twin-screw extruder, and extruding the material obtained by this extrusion. In this method, an extruded product is rolled through a plurality of rolls in a direction perpendicular to the extrusion direction.

Furthermore, the apparatus for producing a textured film food according to the present invention includes:
a twin-screw extruder having a cooling die for forming a vegetable protein-containing material into a plate shape; and a twin-screw extruder disposed near the cooling die and arranged in the extrusion direction for rolling the extruded product extruded from the cooling die. This configuration includes a plurality of roll parts each formed of a pair of rollers, and a tapered surface formed on the roll part and having a predetermined inclination angle that becomes smaller in diameter from the center toward the outer end.

[Function] In the method and apparatus for producing a textured film food according to the present invention, after a raw material containing vegetable protein as a main component is processed into a meat-like textured product using a twin-screw extruder, a plurality of roll sections are used to It is made into a film by rolling it. The fibers of the structured material extruded by this twin-screw extruder have a directionality in the extrusion direction, so if the fibers are rolled using conventional rolls with the same diameter, the fibers will be cut and the structured structure will be destroyed. However, the roll shape of each roll part has a tapered surface with a predetermined inclination angle whose diameter becomes smaller from the center part toward the outer end, and the inclination angle of each roll part is set along the extrusion direction. Since the extruded product is configured to be small, the extruded product is rolled in a direction perpendicular to the extrusion direction, so that the extruded product can be rolled without cutting the m-fibers.

[Implementation rIA] Hereinafter, preferred embodiments of the method and apparatus for producing a textured film food according to the present invention will be described in detail with reference to the drawings.

Figures 1 to 3 are for showing the method and apparatus for producing a textured film food according to the present invention. The plan view and FIG. 3 are side views showing the main parts of FIG. 1.

What is indicated by the reference numeral 1 in the figure is a barrel having a longitudinal internal cavity 1a, and inside this internal cavity 1a, a pair of screws 2 2a constituting a twin-screw extruder are in mesh with each other. It is rotatably provided by a drive means (not shown).

A cooling die 3 having an extrusion hole 3a communicating with the internal cavity 1a is connected to the end surface 1b of the barrel (2), and the cooling die 3 is configured to be cooled by a cooling unit 3A (not shown). ing.

At a position near the extrusion port 3aA of the extrusion hole 3a of the cooling die 3, there are tenth rolls each consisting of a first pair of rolls 4a4b, a second pair of rolls 4c, 4d, and a final stage pair of rolls 4e, 4f, which are arranged above and below. The section 4A, the 20th roll section 4B, and the outermost roll section 4C are arranged so as to be able to rotate independently of each other.

Each pair of rolls 4a to 4a in each of the roll parts 4A to 4C
Between 4f are mutually different gaps G + , G 2 and G
, are formed, and these gaps G, , G2 and G,
is configured in the relationship G 1 > G 2 > G 3, and each roll portion 4A to 4C separated from the cooling die 3
It is structured in such a way that the relationship becomes smaller in sequence.

Incidentally, these gaps 01 to G are configured to be arbitrarily variable by adjusting means (not shown).

Also, among the roll parts 4A to 4C, each of the first pair of rolls 4 in the first roll part 4A and the 20th roll part 4B
a, 4b and each second pair of rolls 4c, 4d, as shown in FIG.

Tapered surfaces 4aB, 4bB, 4cB, and 4dB are formed toward 4cA and 4dA with a predetermined inclination angle θθ2 having a diameter smaller than the diameter of the central portions C+ and C2.

Each of these tapered surfaces 4aB, 4bB, 4cB and 4dB
The formation angles θ and θ2 are configured to become smaller for each roll portion 4A, 4B that is spaced apart from the cooling die 3, and are configured in a relationship such that the 10th roll portion 4A>the 20th roll portion 4B. There is.

Also, each pair of final stage rolls 4e of the final stage roll portion 4C of the final stage that is the farthest away from the cooling die 3.

As shown in the figure, 4f is a cylindrical body having the same diameter throughout its axial length, and is configured not to have the above-mentioned inclination angle.

In addition, each of the above-mentioned tapered surfaces 4aB, 4bB, 4cB and 4d
B is a pair of rolls 4a and 4b.

Both outer ends 4a^ of central portions C, C2 of 4c and 4d.

4ba, 4cA, and 4dA are described above, but the rolling dynamic f% which is the object of the present invention is not limited to this configuration, and also when formed only toward one of the outer ends. It is something that can be obtained.

Each pair of rolls 4a to 4f is, as shown in FIG.
It is rotatably arranged via shafts 12 on bearings 11 provided on a pair of frames 10, and each shaft 12 meshes with each other via gears 13, and a pulley 14 provided at the other end supports a belt 15. The drive pulley 17 of the drive motor 16 is connected to the drive pulley 17 via the drive motor 16 .

The configuration shown in FIG. 3 is for the 10th roll part 4A among the roll parts 4A to 4C, and the configuration shown in FIG.
- The roll portion 4B and the final stage 4C are each configured similarly to the structure shown in FIG. 3, and each of the roll portions 4A to 4C, although not shown, rotates independently at different rotational speeds. It is configured so that it can be done.

The method and apparatus for producing a textured film food according to the present invention are configured as described above, and the operation thereof will be explained below.

In addition, the twin-screw extruder used as the manufacturing equipment actually used is a twin-screw extruder for food (trade name, TEX52F) made by Kanto Motoyama, and the cooling die 3 is the extrusion port 3aA (forming the extrudate). part) has a thickness of 21 and a width of 5011
III+, length 400III+ is used.

Further, the diameters of each pair of rolls 4a to 4f constituting the rolling mill 20 are 2001 mm at the maximum diameter and 6001 mm wide, and the number of rolls is configured in three stages with each roll section 4A to 4C. 4 a.

The inclination angle θ1 of 4b is 0.1', and the second pair of rolls 4c4
The inclination angle θ2 of d is 0.05°, and the final stage pair of rolls 4e and 4f are set to Oo.

(Example-1) Soybean protein [manufactured by Fuji Oil Co., Ltd., defatted soybean 514B] was quantitatively supplied to the twin-screw extruder 21 at a rate of 40 kg/hour and water at a rate of 551/hour. The operating conditions of
The rotational speed of each screw 2, 2a is 120 rpm... and the temperature of the barrel is 80 to 160°C.

In the above state, the extrudate B extruded from the cooling die 3 had a thickness C of 21 mm and a width of 50 mm. Also,
The orientation of the structure of extrudate B corresponds to the extrusion direction of extrudate B, and its fibers are aligned in this extrusion direction.

This extrudate B is continuously supplied to the rolling mill 20, and the gap G1 between the first pair of rolls 4a and 4b is 116 m, and the gap G2 between the second pair of rolls 4c and Jc1 is 0.51 m. The gap G between the final stage pair of rolls 4e and 4f was set to 0.5+nIfl.

Therefore, the extrudate B extruded from the cooling die 3 is rolled by each tapered surface 4aB4bB of the first pair of rolls 4a, 4b in a direction perpendicular to the extrusion direction, and further,
Each tapered surface 4cB, 4c of the second pair of rolls 4c and 4d
The rolled product Da, which is further rolled in a direction perpendicular to the extrusion direction by IB and finally obtained between the final stage pair of rolls 4e and 4f, has a width of about 230+afi and a thickness of about 0.53.
u+m, and the fiber direction of the structure remained the same as the direction in which it was supplied to the rolling mill 20, and it was a film with a structure in which it was arranged without being cut.

The arrangement of this cut can be determined using an electron scanning microscope (S
It was confirmed by observation using EM).

(Example-2) A raw material prepared by mixing soybean protein [Truby M manufactured by Nisshin Oil Co., Ltd.] and frozen surimi in a weight ratio of 1:1 was quantitatively fed to a twin-screw extruder TL'121 at a rate of 30 kg/hour. .

The operating conditions of this twin-screw extruder 21 are as follows: screw rotation speed: 12
The temperature of the barrel 1 was set at 80 to 180° C. at 0 rpm.

In the above state, the shape of the extrudate B extruded from the cooling die 3 had a thickness C of 2I@11 and a width of 50 mm. Further, the directionality of the structure of the extrudate B matches the extrusion direction of the extrudate B, and the fibers thereof are arranged in this extrusion direction.

This extrudate B is continuously supplied to the rolling mill 20, and the gap G1 between the first pair of rolls 4a and 4b is set to 11, and the second pair of rolls 4c is
, 4d was set to 0.5 am, and the gap G3 between the final stage pair of rolls 4e and 4f was set to 0.5 am.

The rolled product Ba obtained from the final stage pair of rolls 4e and 4f of the rolling mill 20 has a width of about 220IIIl and a thickness of about 0.55mm.
-, this rolled product Ba is again supplied to the rolling mill 20, and the gaps Gl, G2 and G are set to 0.31+1jO,2a
m and 0.2 + am.

Therefore, the optimally obtained rolled product Ba has a width of about 5001
, thickness approximately 0.24I*I11te, set Mix f)
The tall direction was aligned in the direction in which rolling B%20 was supplied, and the film was textured.

The arrangement of m-fibers can be observed using an electron scanning microscope (S
E14) was observed and confirmed.

[Effects of the Invention] Since the method and apparatus for producing a textured film food according to the present invention are configured as described above, the following effects can be obtained.

That is, by forming a tapered surface on each roll, the gap on the end side of each roll becomes large, and during rolling, the rolled product is rolled in the direction of the end of each roll, that is, in a direction perpendicular to the extrusion direction. Therefore, the extrudate can be rolled without destroying its fibers, and a film food product with good texture and texture can be obtained.

[Brief explanation of the drawing]

The drawings show the method and apparatus for producing a textured film food according to the present invention, in which FIG. 1 is a longitudinal side view showing the entire horizontal formation, FIG. 2 is a longitudinal sectional plan view showing the entire FM formation, and FIG. It is a side view showing the main parts of the first (21). 3 is a cooling die, 1a, 4L+ is a first pair of rolls, □-
L c , 4 d is the second pair of rolls, 4 e , 4
-f is the final stage pair of rolls, 4A is the 10th roll part, 4B is the 20th roll part, 4c is the final stage roll part, and B is extrusion molding!
Iζ, D are extrusion directions, G + , G 2. G 3 is the gap, θθ2 is the inclination angle, CI, C2 is the center, 4 a
A. 4bA, 4cA, 4dA are outer ends, 4aB, 4bB4cB
, 4dB is a tapered surface, 21 (or twin screw extruder).

Claims (5)

[Claims] (1) The vegetable protein-containing material is extruded into a plate shape through the cooling die (3) of a twin-screw extruder (21), and the extruded product (B) obtained by this extrusion is moved in the extrusion direction. A method for producing a textured film food, characterized by rolling the food through a plurality of roll parts (4A, 4B, 4C) in a direction orthogonal to the film. (2) a twin-screw extruder (21) having a cooling die (3) for molding a vegetable protein-containing material into a plate shape; ) to roll the extruded product (B) extruded from the extrusion direction (D
) and a plurality of roll parts (4A, 4B, 4C) consisting of a pair of rolls (4a to 4f);
, 4B, 4C) and have a predetermined inclination angle (θ_1, θ_2) that becomes smaller in diameter from the center part (C_1, C_2) toward the outer end (4aA, 4bA, 4cA, 4dA). , 4cB, 4dB),
The extrusion molded product (B) is produced by each pair of rolls (4a to 4).
An apparatus for producing a textured film food product, characterized in that it is configured to be rolled in a direction perpendicular to the extrusion direction (D) by the tapered surfaces (4aB, 4bB, 4cB, 4dB) of d). (3) The inclination angle (θ_1, θ_2) becomes smaller sequentially for each roll part (4A to 4C) that is spaced apart from the cooling die (3), and the final stage roll part (4C) has an inclination angle of 0. 3. The apparatus for producing a textured film food according to claim 2, wherein the temperature is .degree. (4) The gaps (G_1 to G_3) in each pair of rollers (4a to 4f) of each of the roll parts (4A to 4C) are defined by the gaps (G_1 to G_3) between the roll parts (4A to 4C) that are spaced apart from the cooling die (3).
4. The apparatus for producing a textured film food according to claim 2, characterized in that the apparatus is configured so that the size of the food becomes gradually smaller than that of the film. (5) Production of a textured film food according to any one of claims 2 to 4, characterized in that each of the roll parts (4A to 4C) is configured such that its rotation speed can be varied independently. Device.