JPS62220153A - Edible fibrous material - Google Patents

Abstract

PURPOSE:To provide the titled sheet-like or cotton-like fibrous material composed of an edible water-soluble polymer and a protein, having an average fiber diameter of smaller than a specific level, producible at a low cost and having high nutrient value. CONSTITUTION:The objective fibrous material having an average fiber diameter of <=30mu can be produced by spinning a liquid mixture of a vegetable or animal protein such as wheat, soybean, cattle meat, etc., an edible water-soluble polymer such as pullullan, polyvinyl pyrrolidone, etc., and, if necessary, a surfactant and/or a chelating agent. The fibrous material preferably takes the form of nonwoven fabric, cotton or roving. The nonwoven fabric has a unit weight of preferably 5-500g/m<2>.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an edible fibrous material, and particularly to an edible protein fibrous material with high nutritional value.

(Prior art) In recent years, new synthetic foods having a fibrous protein structure have been produced from vegetable non-fibrous proteins such as soybean protein and wheat protein, and animal non-fibrous proteins such as casein. ing.

(Problems to be Solved by the Invention) □ Among these techniques, there are many that exhibit a flake-like, thread-worm-like, or sea-like shape rather than a fibrous shape, which is far from the concept of fibrous. On the other hand, when using the spinning method, a fibrous protein of good quality can be obtained, but it is difficult to say that the state is satisfactory in terms of utility, equipment cost, etc.

Therefore, the first object of the present invention is to provide a high quality fibrous synthetic food at low cost and easily.

A second object of the present invention is to provide a sheet-like or cotton-like highly nutritious food that is easy to handle.

(Means for Solving the Problem) The above aspects of the present invention are a fibrous material comprising at least an edible water-soluble polymer and protein, and the average fiber diameter of the fibrous material is 30 μm or less. This was achieved by using an edible fibrous material, especially an edible fibrous material having a basis weight of 5 g/rrr to 500 g/n.

The edible fibrous material of the present invention includes not only non-woven fabrics but also cotton-like materials in which individual fibers are not bonded but are simply intertwined.

Next, the edible fibrous material of the present invention will be explained.

In the present invention, both animal proteins and plant proteins can be used.

Wheat proteins used in the present invention include raw gluten and active gluten obtained from wheat flour by the Martin method, and these may be used alone or in combination. Other plant proteins used in the present invention include isolated protein types and concentrated protein types of plant proteins such as soybean, cottonseed, corn, and leaf protein, which can be used alone or in combination. . In particular, soybean protein can be preferably used in the present invention. As the meat used in the present invention, livestock meat, poultry meat, seafood meat, mollusk meat, etc. are used alone or in combination.

The edible water-soluble polymer used in the present invention can be arbitrarily selected from known edible water-soluble polymers such as pullulan and polyvinylpyrrolidone, but pullulan is particularly preferred.

The method for producing pullulan used in the present invention is not particularly limited, and the molecular weight is also not particularly limited, but from the viewpoint of the strength and moldability of the fibrous material, it is preferably 20,000 to 2,000,000. More preferably, it is 50,000 to 1,000,000.

In the present invention, the above material is dissolved in water to prepare a spinning solution. In this case, auxiliary materials that improve the flavor, texture, and appearance of the food, such as known thickeners, fats and oils, pigments, fragrances, vitamins, and minerals, can be added singly or in combination.

(Function) It is extremely difficult to spin proteins without using a water-soluble polymer, but when a water-soluble polymer is used at the same time as in the present invention, it acts as a binder and makes spinning easier. becomes possible.

In this case, the concentration of water-soluble polymer is 5% to 95% by weight.
It is preferably 10% by weight to 50% by weight.

The protein content is preferably 0.1% to 59% by weight, particularly preferably 10% to 50% by weight, based on the water-soluble polymer.

If the protein content is less than 0.1% by weight, the properties of the protein will not be expressed and a highly nutritious food cannot be obtained. Further, if the protein content is 60% by weight or more, the spinning performance and the properties of the produced fibrous material deteriorate, which is not preferable.

In the present invention, a surfactant and/or a chelating agent may be added in order to improve the fluidity of the spinning solution and perform spinning well.

Surfactants etc. that can be used in the present invention include:
Although non-toxic surfactants can be appropriately selected from known surfactants, sugar ester surfactants and soybean lecithin are particularly preferred.

The amount of surfactants added is 0.1% by weight based on the protein.
-10% by weight, preferably 1% by weight - 5it%.

The amount of the auxiliary material added is 0.0% relative to the water-soluble polymer.
01% to 50% by weight, the spinning solution prepared as described above is extruded through a die in which a plurality of melt-spinning nozzles having pores are arranged linearly in the width direction, and at the same time the spinning solution is extruded from around the nozzles at a linear velocity. 10m/sec~l, 000m/sec, temperature 25
Blowing a gas, such as air, at a temperature between 60°C and 60°C forms a fiber stream consisting of drawn fine fibers. The fiber diameter at this time can be adjusted by the gas pressure during this spraying.

In the present invention, this fine fiber stream is heated by a heating device, such as an infrared heater or a microwave heater, installed at a space below the die to evaporate and remove water in the fibers. The residual moisture content in the fibers heated in this way is preferably 10% by weight or less, particularly 8% by weight or less. If the moisture is not removed sufficiently, the fibers will not become fibrous and will become a highly viscous liquid. , fine fiber fibrous material cannot be obtained.

The heating temperature for the fine flow is selected depending on the balance between the extrusion amount of the raw material liquid, the temperature of the blown gas, and the wind speed, but it is usually preferably in the range of 80°C to 120°C. This is undesirable because the material decomposes as it is removed.

The fine fiber stream from which water has been removed and drawn is collected by a collection device,
For example, they intertwine and fall onto a rotating drum such as a net or a perforated plate, a moving belt, etc. to form a fibrous material. In addition, when collecting the fiber stream, if the spray is dropped at the contact point of two rotating net-type collection drums, the entangled fibers will be distributed in the thickness direction of the fibrous material (i.e. three-dimensionally). A bulky fibrous material with an array of In addition, if the fiber stream is sprayed onto a point other than the contact point of the collection drum or onto a flat collection belt, etc., a fibrous material in which the fibers are arranged parallel to the plane (i.e., two-dimensionally) is produced. is obtained.

Further, the basis weight of the fibrous material can be adjusted by changing the moving speed of the fiber flow collecting device. The forms of fibrous materials include non-woven fabric, cotton, and roving (
Any type (rough brown) is fine.

As described above, the fibrous material of the present invention can be produced by blowing high-speed airflow onto the extruded fibers to increase the drawing ratio of the fibers.
A fibrous material consisting of fine fibers is obtained by heating the fibers to rapidly evaporate water in the fibers by heating the fibers to θ times to 3,000 times, preferably 20 times to 1,000 times.

Next, an example of manufacturing the edible fibrous material of the present invention will be explained using the attached drawings. FIG. 1 is a schematic side view showing the principle of an apparatus for producing a nonwoven fabric as a specific example of the fibrous material of the present invention. The spinning solution is supplied from a raw material supply pipe 1 to a raw material tank 2 . This raw material liquid is extruded from a spinning nozzle 5 by a gear pump 4 driven by a motor 3, and at the same time, high-pressure air supplied by a blower 6 is blown downward from an air nozzle 7 provided around the spinning nozzle to produce water-containing fibers. Next, the water-containing fiber flow 8 is heated by a far-infrared heater 9 installed below the die in parallel with the water-containing fiber flow 8 while being collected by a net-type collecting drum 11. The water in the fibers is removed by evaporation. The stretched and matured fiber stream falls entwined with the contact points of two rotating net-type collecting drums, is compressed to form a non-woven fibrous material 12, and is then transferred to a winding device f l 3. It is wound up.

(Effects of the Invention) The edible fibrous material of the present invention is composed of ultrafine fibers that have never been obtained before, so even infants and the elderly can easily eat it, and it contains a wide range of proteins. It is possible to select and adjust the nutritional value of the food by increasing its nutritional value.

Also, since it is in sheet form, you can wrap food inside it.
Since it can be rolled, sandwiched, placed, tied, and folded, it can provide new uses not found in conventional synthetic foods.

(Examples) Hereinafter, the present invention will be explained in detail with reference to Examples, but the present invention is not limited thereto.

Example 1゜Protein content 85.3% by weight, grains? 32 parts by weight of a dry powder of isolated protein in 42 oopm (Ajinomoto Co., Ltd.! lI Niagibron (registered trademark) -52), 185 parts by weight of pullulan powder with an average molecular weight of 200,000, and 1 part of water 783ti were weighed and melted. Made bubbles. Add this solution to room temperature (
25°C) into an apparatus as shown in Figure 1, and
It was extruded from a mmφ nozzle at a pressure of 1.4 kg/csi, and was stretch-molded by an air flow from an air nozzle at a linear velocity of 200 m/sec. This fiber stream is heated from both sides of the fiber stream by a far-infrared heater (wavelength 1 to 50 μm) installed 30 mm below the nozzle at a temperature of 400°C, and is blown onto a net-type collection drum to evaporate the moisture. I got something like that. The moisture content of this fibrous material is approximately 10%,
The basis weight type was 1 tlOg/rrl, and the average fiber diameter was about 5 μm. In addition, the hygroscopicity at a temperature of 25°C and a relative humidity of 100% is after 30 hours, 120 hours, and 340 hours.
They were 130%, 230% and 640%, respectively.

When the resulting fibrous material was put into the mouth, the pullulan instantly dissolved, leaving behind a wide swath of protein.

Examples 2 to 4 The same results were obtained in exactly the same manner as in Example 1, except that the composition of the spinning solution was changed as shown in Table 1.

Table 1 Example 5 A surfactant (Ryoto Sugar Ester S-770 (trade name) (manufactured by Ryoto Co., Ltd.) was added to the spinning solution as a spinning aid.
A nonwoven fabric was obtained in the same manner as in Example 4, except that 3 parts by weight of ) was added. The obtained nonwoven fabric was exactly the same as in Example 4.

Example 6 A similar result was obtained in exactly the same manner as in Example 5, except that 5 parts by weight of soybean lecithin was used in place of the surfactant used in Example 5.

Comparative Example 1 48 parts by weight of the separated protein used in Example 1 was dissolved in 952 parts of water to prepare a spinning solution, but in this case, the solution did not have continuous thread properties and could not be spun.

Comparative Example 2 The composition of the spinning solution used in Example 1 was exactly the same as in Example 1, except that the composition was 151 parts by weight of separated protein, 94 parts by weight of pullulan, and 755 parts by weight of water. The yarn properties were not sufficient and spinning could not be performed.

[Brief explanation of drawings]

FIG. 1 is a schematic side view showing an example of an apparatus for manufacturing a fibrous material of the present invention. In the figure, 1 is a raw material supply pipe, 2 is a raw material tank, 3 is a motor, 4 is a gear pump, 5 is a spinning nozzle, 6 is a multistage blower, 7 is an air nozzle, and 8
1 is a water-containing fibrous material, 9 is a far-infrared heater, 10 is a dehydrated fibrous material, 11 is a net-type collection drum, 12 is a non-woven fibrous material, and 13 is a winding device.

Claims (1)

[Scope of Claims] 1) A fibrous material comprising at least an edible water-soluble polymer and protein, wherein the fibrous material has an average fiber diameter of 30 μm.
An edible fibrous material that is: 2) The edible fibrous material according to claim 1, wherein the fibrous material is in the form of nonwoven fabric, cotton, or roving. 3) The edible fibrous material according to claim 2, wherein the nonwoven fabric has a basis weight of 5 g/m^2 to 500 g/m^2.