DE1792627B2 - Method of making an edible collagen tube - Google Patents

Description

As has been found, is an extruded sen that is located in the hose 12 up to the strand hose made of collagen mass impermeable to air, press 10 extends back. As the hose for air but permeable to gaseous ammonia. is impermeable, the air supply is through the lei-Wenn thus the collagen tube is interrupted during its operation 192 when the air bubble is in the Formation with air inflated and ammonia gas formed in 5 hose. It is convenient to use the its interior is introduced, mold and tube can inflate to a diameter that Diameter of the hose are maintained, corresponds to the extrusion diameter, and it at while the acid present in the collagen mass will keep this diameter until the strand falls Formation of ammonium salts in the wall pressed hose is hardened. The ammonia gas will of the hose is neutralized. Presence io through line 192 and into jacket 15 onward Ammonium salts are introduced into the hose wall in an amount that is sufficient to remove the nutrients not the permeability of the tube for vesamples acid present in the tube before the plätmoniakgas. The exposure of the extruded th of the hose by the rollers 20 and 22 full hose the ammonia gas atmosphere prevents constant neutralization. The movement of the belt moreover, its collapse and causes a downward 15 13 and the pinch rollers 20 and 22 will thus swell in the collagen fibrils and thus leads to the fact that the tube moves with steady Geschwineiner Increasing the tensile strength of the hose. with little or no linear stretching of the

The invention is hereinafter moved away from the extruder in connection with hose,
A diameter gauge 23 constantly monitors the diameter of the inflated tube 12 and tube for the extrusion molding and conveying of a collagen tube during its hardening with ammonia gas, the air pressure in the tube. When the diameter of the hose is below the extrusion diameter

F i g. 1 shows schematically in part as a side line, a signal is generated by the gauge 23,

sees, partly as a cut and partly cut open, which is monitored by a measuring device 23. if

a device to carry out the method 25 the signal beyond predetermined limits to vary.

rens; iert, it actuates an air control valve (not shown),

Fig. 2 is a partial view showing the drivers; to increase the air pressure in the hose and here-

F i g. 3 is a vertical section along the line through the hose to its extrusion diameter

nien 3-3 of F i g. 2; water to inflate.

F i g. 4 shows a plan view of a partial view along 30. The hose falls from the moving belt 13 into FIG

lines 4-4 of FIG. 2; Receiving basket 24 in the water washing tank 40 and

F i g. 5 is illustrated as a box scheme that is represented by a number of deflection rollers 25, 26, 27,

timing of the procedure; 28, 29, 30 and 31 passed through the water wash.

F i g. FIG. 6 shows a modification in which several As shown in FIG. 3 and 4 can be seen, each is converted to devices are connected next to each other. 35 swivel castor through a spindle 32 and the bevel gears

Driven to understand the individual operations and 33 and 34. The bevel gears 34 of the devices used are below mounted on a shaft 35, which through the modes in FIG. 1 described system shown. A gate 36 via a belt 37 and a stationary collagen extrusion is driven into the rotating pulley 38,
of the disk working extruder 10 of the in F i g. 1 40 vertical plates 39 under each pulley pictures U.S. Patent 3,122,788 described the chambers that pumped the folded hose back-type. The sausage casing 12 is held during it and prevents it from being inflated during the warer formation with air which entangles or tangles under pressure. As shown in FIG. 1 from the line 192 through the extruder in which it can be seen, the inside of the hose circulating in the container 40 flows. When approaching the 45 water through holes 42 in the vertical plate process, the end of the hose is folded by folding 39 and washes the hose carefully,
closed so that the tube contains the air and the washed tube is inflated from the container. Simultaneously with the introduction of the 40 into a plasticizer container 44, and air through the line 192, ammonia gas is released through the pulley 45 which folds the hose up this line and into the interior of the extruded 50 as it falls into the chamber 46. The gefal hose 12 is metered. Tete hose is from the bottom of the chamber 46 through

A jacket 15, which is open at one end 16, is pulled off the pulley 47 and into the chamber

surrounds the mouth of the extruder 10 and which 48 is transferred, from which it is passed through the deflection roller 49

moving extruded hose 12. Which is removed. The chambers 46, 48 and 50 are with

Hose can be provided in this jacket through the window 55 openings in the vertical walls, so

17 should be considered. In the jacket 15 is Ammo that the plasticizer solution is the entire container

niakgas introduced in order to fill an evenly surrounding the hose.

Ammonia atmosphere when passing through the hose is from the Werhmachertank 44

Maintain coat. pulled off by the motor-driven pulley 51

The extruded tube is taken from the strand, which is arranged in front of the drying device.

press on an endless belt 13 that runs around the tube. The plasticized and flattened tube

len 14 and 18 running, promoted. The roller 14 is on exit from the container 44 over a row

motor-driven and moves the belt in the Rieh- of idler rollers and is at intervals of about

Direction of the arrow miv the linear velocity, with 10 cm of a reciprocating needle 52

which the tube 12 is extruded. 65 pierced. Those little needle pricks in the tube

At one end of the band 13, the hose will facilitate subsequent drying. The pinch roller 53

by two driven pinch rollers ;? 20 and 22 closes in connection with the driven one

flattened, whereby an air bubble trapped roller 51 the hose entering the dryer

5 6

and allows the hose to be inflated at extrusion speed or at a reduced rate

Air. supplied amount of ammonia gas. A decrease

Here, the drying device does not carry out the amount of ammonia supplied to about 2.0 g / min Highly described because it reduces the amount of neutralization that takes place in the United States patent-3 123 653 described device is similar. The 5 the temperature rise, but the ammonia gas drying chamber however, through partitions in quantity should not be reduced so much that the divided into three chambers so that each chamber of extruded tubing is too soft to be comfortable Hot air supplied to be handled at a different temperature. An increase in the supply can. When introducing the ammonia gas quantity, the hose is increased above 3.4 g / min in the dryer for drying and shirring again io temperature of the hose inflated by the neutralization, reaction, but has little influence on the speed

Collagen masses, the 0.6 to 1.19 percent by weight with which the tubular casing hardened

Containing lactic acid are made according to the procedure.

according to the invention has been successfully processed. The wet strength of the extruded tube However, if the tube after the extrusion 15 increases with time, while the ammonia the and not completed with neutralization process after neutralization with ammonia. 5 to 7 minutes When water is washed, it is preferable that after extrusion, the tube has a wet acid concentration Reduced to the minimum, strength from 336 to 376 g.

through which the collagen fibrils are properly swollen. The tube from the belt 13 can be loosened with air, thereby blowing excess ammonia and introducing it directly into the first section (24.4 Iium lactate in the finished product. Instead of linear meters) of a drying chamber lactic acid can be used as swelling agents other, which is maintained at 71 ⁰ C the. The residence time acids are used that form the edible ammonium of the tube in the first section of the dry kam salts, e.g. B. acetic acid or hydrochloric acid, mer is about 2.67 minutes. The inflated

25 hose then enters the second outlet

For example 1 section (7.9 m) of the drying chamber, which is at 56 ° C

is held. The dwell time of the hose in the

The following acid-swollen second section of the drying chamber is used for extrusion

Collagen mass used: 1 minute. The inflated tube then enters

Weight percent 30 a third section (4.27 linear meters) of the

τ- * «β j TT ..ι · -ice drying chamber. The temperature in this third

Solids of the skin consumption 3.55 section is about 32 ° C and the residence time

Lactic acid 0.70 of the tube about 0.5 minutes. When the

Cellulose 0.71 tube from the third section of the dryer

35 it is gathered with the device, the object

Glycerin 1.00 of U.S. Patent 3,315,300

Water 94.04 The tubular shape made in this way

Shell contains about 10 percent by weight (based on aui

This collagen wet gets in an amount of collagen solids) ammonium lactate and can mr

Extruded at 252 g / min, which equates to an excellent 40 pre-production results

Hose length of 2.75 m. The amount of air is used on sausage based on pork.

about 1500 ml / min and the supplied ammonia gases.

amount set to about 4000 ml / min. This air example 2 and amounts of ammonia produce a sufficient one

Pressure to release the tube as it exits the au- 45 A collagen dispersion referred to below

Inflate the outer part of the extruder nozzle. The th composition was based on the example:

The amount of air supplied is gradually extruded in a reduced manner,

gert in order to avoid that the hose on a weight percent

Diameter larger than the skin diameter 3.55

which it is extruded (18 mm), inflated. 50

After a few minutes of operation, glycerine 0.75

after which the between the extruder 10 and cellulose 0.71

Air lactic acid 0 70 trapped on pinch rollers 20 and 22

bubble has stabilized, the air supply can be cut off

be blocked. The supply of ammonia gas becomes 55 glucose 0.01

continued at about 4000 ml / min (3.4 g NH _s / min)

While the ammonia gas through the hose The wet strength on the pinch rollers 20, 22 be

penetrates, the milk is immediately neutralized - carries 280 g. The hose from belt 13 can (without

acid instead. This neutralization proceeds from in-washing or softening) directly to drying

the inner wall of the hose to the outer wall continued and about 3 minutes at 71 ° C and approx

This must be dried at 54 ° C for 2 minutes at a temperature rise of 5 to 6 ° C. De

between the hose emerging from the nozzle hose is then hardened by being inside vo

and a place about 46 cm away from the nozzle for 8 hours at a temperature of 90 ° C

recognizable. It is advisable to keep the maximum temperature and a further 12 hours at this temperature

temperature that will be reduced by the neutralization reaction.

there, with suitable means to limit it to 34 ° C. The tubular casing produced in this way is m

for example by cooling the extrusion mass of the sausage mass based on pork g <

on entering the extruder, increasing the stuffs, obtaining a product that is ear

Difficulty can be linked and then has an excellent appearance. The behavior of the so sausage produced when cooking is excellent.

Example 3

The experiment described in Example 1 was repeated, but instead of lactic acid 0.084 weight percent hydrochloric acid was used to swell the collagen fibrils. The so The tubing produced contained about 1 percent by weight ammonium chloride and was suitable for Production of pork based sausages.

B e i s ρ i e 1 4

A collagen mass having the composition: 3.55 percent by weight skin solids, 0.72 percent by weight hardwood cellulose, 0.12 percent by weight hydrochloric acid,

ao

is used for extrusion, where the extruded collagen tube is inflated with air. Here, the jacket of the extruder is cooled ^{to as 9 ° C.} Anhydrous ammonia is introduced into the interior of the hose in an amount of about 1.6 g / min and in the outer jacket 15 surrounding the hose in an amount of 3.4 g / min. The temperature of the extruded collagen increases due to the work that the rotating disks of the extruder do on the extrusion mass and the heat of neutralization. The maximum temperature of the hose must not exceed 34 ° C. The diameter gauge 23 is adjusted so that the diameter of the extruded tube is maintained at 26 ± 1 mm.

The extruded tube is flattened between pinch rollers 20 and 22 and falls off End of the tape 13 in the receiving basket 24 in the water washing tank 40. The wet strength of the Hose when leaving the conveyor belt is 382 g. The hose is fed through the godets 25, 26 27, 28, 29, 30 and 31 passed through a series of chambers in container 40 and in intimate contact with the wash water circulating through openings 42 in the walls of each chamber. The total residence time of the hose in the water washing tank 40 (see FIG. 5) is 35 minutes, and the flow rate of fresh water through the tank 40 is 13 l / min. The hose has after the Water wash has a wet strength of 703 g.

The plasticizer in the plasticizer container 44 is an aqueous solution of 4.5% glycerol and 1.0% Carboxymethyl cellulose. This solution is circulated through the container 44 at a rate of 6 l / min. The total residence time of the hose in the plasticizer container 44 is 7.5 minutes. openings in the vertical walls of the chambers 46, 48 and 50 establish the connection with the plasticizer solution in container 44 and make intimate contact of the hose with the plasticizer bath secure. The hose has a wet strength of 750 g when it emerges from the plasticizer bath. Of the Hose from the plasticizer bath is dried and gathered in the manner described in Example 1. The temperature is kept at 81 ° C in the first section and at 72 ° C in the second and third sections.

The shirred tubular casing is hardened by the temperature within 12 hours of 25 is increased to 75 ° C and the hose is held at 75 ° C for a further 3 hours. The hardened one Hose is then placed in a room where there is constant humidity, to a humidity level from about 12 to 14 ° / o moistened. This content is for use as a casing for fresh sausage suitable from pork.

A sausage casing with increased strength that can withstand the stresses and strains of high speed To withstand the stuffing of frankfurter sausages and the stresses of kettein can be obtained by hardening the gathered sausage casing at a higher temperature. For example, the sausage casing can be placed in a heating cabinet within 12 hours before being moistened heated from room temperature to 90 ° C and held at 90 ° C for a further 12 hours.

For this 1 sheet. drawings

309548/313

Claims (3)

1 ° 2 as the internal air pressure used for inflation claims: prevents substances from outside penetrating or diffusing through. 1. Method of Making an Edible According to U.S. Patent 3,123,653, a Collagen tube like a sausage casing, through 5 extremely thin-walled collagen tubes from acid-ge extrusions and inflating an acid-swollen collagen fiber are produced, wherein Lenen collagen mass, the plasticizer, the collagen mass has a solids content of about 3.5 can contain, to a tube, which then has up to 5%, by the collagen mass in a ßend is dried and gathered, thereby extruding concentrated ammonium sulfate solution characterized in that one becomes the hose through which the hose-free material coagulates its formation at the mouth of the strand is Iiert and hardened. The hardened tube will Press washed with an ammonia-containing air, tanned and plasticized by being through inflates, and the hose is guided on a support for successive baths, after which holds until the material present in the extrusion dries the hose while it is exposed to gas and acid has been neutralized by ammonia. 15 th pressure is inflated. After that, the finished 2. The method according to claim. 1, thereby being gathered hose. When extruding a indicates that the tube formed is at times such a low-solids, thin-bodied collagen mass Hg passed through an external ammonia gas atmosphere into a liquid coagulating bath and then connected the continuation of the hose in various different 3. The method according to claim 1 or 2, thereby ao more baths result, however, extremely difficult characterized that the plasticizer-free handling problems, since the extremely fragile Extruded hose after neutralization hose should only be treated with the greatest care the acid present through the ammonia. Also here are four different solutions and provided before drying by a liquid, which at a certain concentration Softener bath is performed. 25 tion must be maintained. Through the different, The controls to be carried out at the various points in the process flow must be agile and complicated. The object of the present invention is therefore 30 specify a method that eliminates these disadvantages The invention relates to a method for the production of collagen fibers which have been swollen with acid and which avoid them treatment of an edible collagen tube like one into an edible collagen tube Wursi shell, by extrusion and inflation, can without the collagen fibers tanning an acid-swollen collagen mass, the plastifi- substances must be added so that the may contain zierungsmittel, to form a hose, 35 with the tanning agents connected process which is then dried and gathered. steps are omitted. From the German Auslegeschrift 1199 112 is a This object is achieved in that one Process for the production of shaped articles, in particular a hose when it is formed at the mouth of the tube special artificial sausage casings, known, in the extruder with an ammonia-containing air formaldehyde 40 inflates the fiber mass before molding and holds the tube on a support until is added, in order to achieve hardening or tanning, the acid present in the extrusion material from chen. In addition, the addition of ammonia is preferably neutralized. Phenols to improve the surface quality. Here, the hose formed is preferred fineness provided. To protect the acidic, swollen temporarily from an external ammonia gas atmosphere Neutralize fiber masses and run the excess 45 sphere. Formaldehyde or the excess phenol to be removed. If the acid-swollen collagen mass is already away, if the molding contains a plasticizer due to an ammonia gas, the containing space, after which he obtained hose after the neutralizer to dew with salt sets and is stored moist so that it can be processed further immediately. Contains the colla- Molding taken up on a surface but no plasticizer, so the moniak can develop its full potential. This plasticizer-free, extruded tube according to dei The method has the disadvantage that additions of neutralization of the acid present through there; Tanning agents are necessary, the additional ammonia preferably washed and before dei Process stages in the production of the sausage casing - drying by means of a liquid plasticizer bath len require. 55 leads. Furthermore, it is from the German patents Compared to the treatment with several baths 826 846 and 972 854 known, after the sausage casings the collagen mass can be strangled considerably faster. the extrusion by air inflating and one pressing and processing, since the extent of the dei To submit to dry treatment, also treatment with the various liquids ver a hardening agent 60 reduces the collagen-containing material or this treatment is completely superfluous is added. Also the extruded material can be. Due to the simplicity of the treatment I the effects of chemical treatment agents, you will also have better management and control de: for example in vapor form, exposed to process. It was also found that the nacl To bring about surface changes. Collagen tube made using this method " these processes have the disadvantage that hardening properties have improved chain properties after plugging processing or tanning agents are used. To- have, which may be due to the formation of voi therefore, these methods only leave a surface ammonium salts that remain in the hose treatment of the sausage casings produced from the outside.