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WO2004058862A1 - Pellicule plate comestible - Google Patents

Pellicule plate comestible Download PDF

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Publication number
WO2004058862A1
WO2004058862A1 PCT/EP2003/014441 EP0314441W WO2004058862A1 WO 2004058862 A1 WO2004058862 A1 WO 2004058862A1 EP 0314441 W EP0314441 W EP 0314441W WO 2004058862 A1 WO2004058862 A1 WO 2004058862A1
Authority
WO
WIPO (PCT)
Prior art keywords
cellulose
film according
nmmo
edible film
fibers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2003/014441
Other languages
German (de)
English (en)
Other versions
WO2004058862A8 (fr
Inventor
Herbert Gord
Klaus-Dieter Hammer
Rainer Neeff
Klaus Berghof
Markus Eilers
Eberhard Taeger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kalle GmbH and Co KG
Original Assignee
Kalle GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kalle GmbH and Co KG filed Critical Kalle GmbH and Co KG
Priority to AU2003290076A priority Critical patent/AU2003290076A1/en
Publication of WO2004058862A1 publication Critical patent/WO2004058862A1/fr
Publication of WO2004058862A8 publication Critical patent/WO2004058862A8/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/02—Cellulose; Modified cellulose
    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22C—PROCESSING MEAT, POULTRY, OR FISH
    • A22C13/00—Sausage casings
    • A22C13/0013—Chemical composition of synthetic sausage casings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
    • C08J2301/02—Cellulose; Modified cellulose

Definitions

  • the invention relates to an edible film containing cellulose, at least one filler which is insoluble or not dissolved in an NMMO spinning solution and at least one further component which is dissolved in the NMMO spinning solution and which causes a disturbance in the structure of the precipitated cellulose. It also relates to a process for producing the film.
  • the tensile strength in the longitudinal direction in the dry state is approximately 20 to 40
  • the edible sausage casings based on calcium alginate developed as a replacement have proven to be technically inadequate.
  • the sparingly soluble calcium alginate is gradually converted into the more readily soluble sodium alginate.
  • the covers lose Stability.
  • Edible intestines based on other natural polymers, such as crosslinked casein, have also not been widely used.
  • thermoplastic mixture which contains native or modified starch and protein as essential components
  • Starch and protein are linked by a crosslinking agent such as formaldehyde, glutaraldehyde or epichlorohydrin.
  • the thermoplastic mixture can also contain plasticizers, lubricants, fillers, antimicrobial agents and / or dyes, such as glycerol, glycerol mono-, di- or triacetate, sorbitol, mannitol,
  • Moldings for example foils, capsules, trays, bottles, tubes, etc., can be produced from the mixture by deep drawing, injection molding, blow molding or using a similar process.
  • the thermoplastic mixture is not very suitable for tubular food casings, in particular cook-resistant sausage casings, because starch at least partially dissolves in hot water.
  • the material is also too tough for an edible sausage casing.
  • casein which in turn is obtained from milk by acid precipitation, is dissolved in dilute sodium hydroxide solution. The solution is then spun into an aqueous sulfuric acid precipitation bath. The resulting fibers or filaments are then hardened in a formaldehyde-containing bath.
  • Dialdehydes also formamide and aluminum sulfate.
  • a method for the production of concentrated solutions of fibrillary proteins in NMMO monohydrate and the use of the solution for the production of molded articles is known (DE-A 19841 649).
  • the globular proteins that occur in large numbers in nature and are often easy to obtain cannot be used for this.
  • NMMO N-methyl-morpholine-N-oxide
  • US-A 3447 939 Enzymatically pretreated cellulose dissolves more easily in NMMO monohydrate (DE-A 44 39 149; DE-A 196 24 867).
  • the amine oxide / cellulose solution can be on known devices, for example with the aid of
  • a problem in the production of flat films is the prevention of the transverse shrinkage of the film in the aftertreatment. This is prevented in the case of plastic films by holding the film on the edges with clips or other gripping devices and thus counteracting the transverse shrinkage. Experience has shown that this leads to considerable fluctuations in the thickness the film as well as differences in elongation across the web width. A better consistency of the parameters can be achieved if a film tube is first produced by extrusion, which is separated in the longitudinal direction after going through all treatment steps and thus becomes a flat film. Another great advantage of this method is that the interfaces can be laid in an oscillating manner when the film is being wound up, so that a smooth roll that is free of visible thick spots is obtained.
  • Edible films and edible sausage casings that are sufficiently resistant to cooking, stable and permeable to smoke have so far been produced almost exclusively from collagen.
  • Collagen obtained from cattle hides is processed in complex and environmentally harmful processes.
  • the cellulose-based films mentioned above are resistant to cooking and permeable to smoke, but are not edible. Above all, they are not chewable because of their high strength and toughness.
  • a novel, seamless, tubular food casing suitable for consumption is proposed. It comprises cellulose, at least one protein and at least one filler. It is made from a spinning mass, which in
  • NMMO monohydrate dissolved cellulose a protein (especially casein or zein) and a filler (especially finely ground wheat bran).
  • the envelope will specially used as an artificial sausage casing. Accordingly, it has a caliber of approximately 20 to 150 mm. A flat film of sufficient width cannot be obtained from it. Such a flat film is desirable, for example, for the packaging of cooked ham or other relatively large or irregularly shaped foods.
  • the task was therefore to provide an edible, i.e. in particular to provide a chewable, cook-resistant and smoke-permeable flat film with a width of at least 600 mm.
  • the film should have no fluctuations in its thickness or other irregularities, so that a uniform film wrap can be produced without so-called piston rings.
  • the film should also be able to be produced in a simple and environmentally friendly manner without the need for any animal materials.
  • 101 29 539 known type also with a very large caliber, i.e. with a diameter of about 200 to 2,000 mm, can be produced uniformly without tearing and without fluctuations in thickness occurring.
  • the film is then processed into a flat film by cutting in the longitudinal direction.
  • the film can also be produced directly as a flat film with a width of more than 600 mm with the aid of a slot die.
  • the invention accordingly relates to an edible film containing cellulose, at least one filler which is insoluble or not dissolved in an NMMO spinning mass and at least one further filler dissolved in the NMMO spinning mass
  • the film being characterized in that it is a flat film.
  • the flat film generally has a width of at least 600 mm, preferably from 1,000 to 6,500 mm, particularly preferably from 1,500 to 3,500 mm.
  • the cellulose preferably comes from TCF or ECF pulp (Total Chlorine Free or Elemental Chlorine Free pulp). Your carbonyl and carboxyl Group content is generally less than 50 ⁇ mol / g, the proportion of heavy metals therein is less than 20 ppm.
  • the degree of polymerization DP (determined by the Cuoxam method) of the cellulose is preferably 300 to 1,000, preferably 300 to 900, particularly preferably 500 to 850.
  • a sulfite pulp with a Cuoxam-DP of about 800 to 850 has proven to be particularly favorable.
  • the proportion of cellulose in the film is generally 30.0 to 80.0% by weight, preferably 40.0 to 70.0% by weight, in each case based on the weight of the dry, i.e. water and glycerin free film.
  • the component that disrupts the structure of the precipitated cellulose is preferably a protein.
  • the protein in turn is preferably a natural, globular protein, in particular casein (milk protein), soy protein, gluten (wheat protein), zein (corn protein), ardein (peanut protein) or pea protein.
  • casein milk protein
  • soy protein soy protein
  • gluten wheat protein
  • zein corn protein
  • ardein peanut protein
  • pea protein any protein is suitable which, together with cellulose, is soluble in NMMO monohydrate at elevated temperature (approx. 85 to 105 ° C).
  • it has proven to be expedient to crosslink it beforehand.
  • aldehyde methylol, epoxide and / or a cross-linking enzyme.
  • aldehyde methylol
  • epoxide epoxide
  • / or a cross-linking enzyme epoxide and / or a cross-linking enzyme.
  • aldehyde methylol
  • methylol etc. include compounds with more than one carbaldehyde or methylol group.
  • dimethylolethylene urea and dialdehydes in particular glyoxal, malonaldehyde, succinaldehyde and glutaraldehyde, are particularly suitable crosslinkers.
  • Crosslinking is usually carried out in the presence of Lewis acids.
  • Crosslinking not only reacts to the free amino groups and any acid amide groups of the protein, but also the imino groups of the peptide bonds and the hydroxyl groups of the serine.
  • a suitable crosslinking enzyme is, for example, transglutaminase.
  • Other suitable components for disrupting the structure of the precipitated cellulose are also homo- or heteropolysaccharides or derivatives thereof, waxes, hydrocarbons and / or synthetic (co) polymers, all of these components possibly being mixed with protein (s).
  • a suitable one Homopolysaccharide is, for example, starch.
  • a suitable derivative thereof is, for example, starch acetate.
  • the heteropolysaccharides carrageenan, xanthan and alginate are particularly noteworthy.
  • the wax is, for example, beeswax, carnauba wax or candelilla wax
  • the hydrocarbon is, for example, an edible natural rubber.
  • synthetic polymers or copolymers abbreviated (co) polymers
  • polyvinyl alcohol and polyethylene oxide are suitable.
  • all of the ingredients mentioned must be toxicologically safe.
  • the solubility of the protein in the aqueous NMMO of the precipitation bath and in the water of the wash baths is reduced, if appropriate, by reaction with suitable crosslinking agents.
  • the proportion of component (s) which disturb the crystal structure of the precipitated cellulose is generally about 20 to 70% by weight, preferably about 30 to 60% by weight, in each case based on the total weight of the flat film according to the invention.
  • Envelopes which contain at least one protein and at least one of the other structure-disrupting components mentioned are particularly preferred.
  • the proportion of protein (s) is preferably 10 to 40% by weight and the proportion of the further structure-disturbing component (s) 10 to 30% by weight, in each case based on the total weight of the dry shell.
  • the fillers also break the structure of the cellulose. They reduce the stretchability of a film made from the spinning mass by extrusion without significantly impairing its strength.
  • the filler can be organic or inorganic in nature, and comminuted natural products are preferred. So finely ground bran, especially wheat bran, is well suited. In addition, finely ground natural fibers can be used, in particular flax, hemp or cotton fibers, cotton linters, chitin, chitosan, guar gum, locust bean gum or microcrystalline cellulose. Inorganic fillers are, for example, finely ground calcium carbonate or SiO 2 powder.
  • the filler generally consists of particles with a grain size of less than 200 ⁇ m, preferably 20 to 150 ⁇ m, particularly preferably 30 to 100 ⁇ m. For fillers that have a certain solubility in NMMO monohydrate, the grain size refers to the period after regeneration. The particle size is practically identical to that resulting from the
  • the desired grain size can be set, for example, by dry or wet grinding and, if necessary, by sieving to certain grain size fractions.
  • the coarse grain fraction can then be returned to the grinding process.
  • the diameter of the filler particles must in any case be less than the thickness of a film made from the spinning mass, so that no holes can form in the film.
  • Fillers with a platelet shape are arranged essentially parallel to the surface of the film due to the flow conditions during extrusion. The length or width of the platelet-shaped particles can then also be greater than the thickness of the film.
  • a pretreated cellulose can also be used in the production of the flat film according to the invention. The filler is then particularly evenly distributed.
  • the proportion of filler (s) is generally 1 to 150% by weight, preferably 5 to 100% by weight, particularly preferably 20 to 80% by weight, in each case based on the
  • the sheath comprises at least one stabilizer which prevent or slow down undesirable degradation of the cellulose or NMMO 's.
  • the stabilizer expediently has an antioxidant and / or basic effect. This applies, for example, to NaOH, alkyl esters (especially propyl gallate), reductones, phenylenediamine or hydroxylamine. These and other additives are described, for example, in EP-A 047 929.
  • the proportion of stabilizer (s) is generally 0.2 to 2.0% by weight, preferably 0.6 to 1.0% by weight, in each case based on the weight of the cellulose.
  • the flat film according to the invention optionally contains fibers.
  • the fibers do not dissolve in the spinning mass. In principle, it is about are the same fibers that are used in the production of collagen casings.
  • the fibers are, for example, cellulose fibers, cotton fibers, cotton linters, flax fibers, hemp fibers, chitosan fibrids or correspondingly insoluble synthetic polymers. They practically do not dissolve in aqueous NMMO or in NMMO monohydrate. To do this, in some cases
  • the fibers improve the mechanical stability of the film in the transverse direction.
  • the length of the fibers is generally 250 ⁇ m to
  • NMMO N-methylmorpholine-N-oxide
  • Water is drawn off from a suspension of cellulose and aqueous NMMO at elevated temperature, reduced pressure and under the action of shear forces until the aqueous NMMO has essentially become NMMO monohydrate and the cellulose has dissolved in the NMMO monohydrate.
  • the spinning solution obtained in this way can contain a proportion of dissolved cellulose of about 5 to 20% by weight, preferably about 7 to 15% by weight, based on its total weight.
  • the process for producing the film according to the invention can be varied as follows: First, the pretreated cellulose is mixed with aqueous (40 to 90% by weight, preferably about 60% by weight) NMMO. Stabilizers can already be contained in the aqueous NMMO or added to the mixture. In parallel, a mixture of filler, which has previously been brought to the appropriate grain size, and aqueous NMMO is produced. Stabilizers can in turn be contained in the aqueous NMMO or added to the mixture. Possibly existing water-soluble parts of the
  • Fillers are optionally removed and removed beforehand by treatment with water.
  • a stirrer with high shear effect beneficial.
  • the component dissolved in the dope which disrupts the structure of the precipitated cellulose (which is preferably a protein), is likewise first mixed with aqueous NMMO, optionally with the addition of stabilizer (s).
  • the individual suspensions produced in this way are then brought together and mixed together. Water is then drawn off from the mixture with stirring at elevated temperature and reduced pressure until the aqueous NMMO has essentially become NMMO monohydrate.
  • the solvent then consists of approximately 87% by weight of NMMO and 13% by weight of water, recognizable by a refractive index n D of approximately 1.4887 (measured at 85 ° C.).
  • n D refractive index
  • the excess water can be removed in one or two stages.
  • Simple mixing vessels with low shear and a large heat exchange surface, extruders, kneaders or thin film evaporators with a larger shear field and comparatively small heat exchange surface can be used for this.
  • Containers are suspended.
  • the order in which the components are added is freely selectable.
  • the filler is expediently added last so that it can be ensured that the other constituents are dissolved in the NMMO monohydrate and have formed a homogeneous solution.
  • the excess water is then also drawn off in this case and the mixture is kept at an elevated temperature, optionally with stirring or kneading, until the components, with the exception of the filler, have gone into solution.
  • Which procedure is more favorable also depends on the type of components used.
  • a filler that is (partially) soluble in aqueous NMMO or NMMO monohydrate should be added as late as possible so that not too much of it goes into solution and the particle size does not decrease too much.
  • the flat film according to the invention can be extruded according to generally known methods (WO 97/31970) using molding tools, for example using a wide slot die or a heated ring slot die with a large diameter, to form a flat film or a seamless tube, with a flat film again being obtained from the tube by cutting it open becomes.
  • the highly viscous spinning mass Before the extrusion, the highly viscous spinning mass generally has a temperature of approximately 80 to 100 ° C., preferably approximately 90 ° C.
  • the spinning solution is usually fed into the nozzle body through a single feed line.
  • the problem can be eliminated in that - according to the nozzle diameter - several feed lines are arranged evenly distributed over the circumference of the nozzle body.
  • the supply lines are expediently designed as double-jacket pipes.
  • the interior of the nozzle expediently contains special internals which bring about a uniform distribution of the mass flow over the entire circumference of the ring slot. Uniform flow properties of the spinning mass can be achieved by an exact temperature setting of the nozzle body. For this purpose, it should be optimally insulated.
  • the volume flow of the heating medium should be selected so that there is practically no temperature difference between its entry and exit points. It is advantageous to operate the entry and exit points alternately.
  • nozzle gap it is also important to set the nozzle gap precisely to ensure that the tubular film has a uniform thickness over the entire circumference.
  • a concentric gap must be created between the outer nozzle ring and the inner cylindrical counter bearing. The gap can be adjusted by moving the ring nozzle, for example controlled by a
  • the shift itself can take place mechanically, thermally or piezo-electrically.
  • the hose first runs through an air gap of about 2 to 20 cm in length, in which it is held in the cylindrical shape by an internal gas pressure (generally generated by compressed air), so that the inner walls cannot stick together.
  • a transverse stretching preferably also takes place in the air gap.
  • Appropriate internal pressure controls it, for example, so that the flat width of the hose is 5 to 10% greater than that of an undrawn hose.
  • the tube then passes into a precipitation bath in which the cellulose and the other solid constituents of the spinning mass are precipitated.
  • the precipitation bath usually consists of a dilute (about 15% by weight) aqueous NMMO solution.
  • Precipitation liquid is also fed into the interior of the hose (so-called “inner precipitation bath”).
  • the inner bath solution is generally supplied via a single pipe arranged in the middle.
  • the fresh inner precipitation bath should be supplied at several points at the same time.
  • Hose cross-section in sectors of equal size should have an inflow pipe per sector.
  • the number of sectors is selected so that optimal mixing takes place, i.e. with a relatively small hose cross-section 2 sectors (180 ° pitch), with increasing cross-section then 3 sectors (120 ° pitch), 4 sectors (90 ° pitch) etc.
  • the amount of the spinning bath supplied depends on the caliber, the wall thickness and the extrusion speed.
  • the internal bath is removed in an analogous manner with a corresponding number of suction pipes, so that the pressure fluctuations inside the hose remain small.
  • the level of the indoor pool is expediently kept constant by using pumps. In order to obtain a hose that is as constant as possible, it is advantageous to set the level of the indoor pool somewhat higher (i.e. about 5 to 50 mm higher) than that of the outdoor pool.
  • the gas pressure inside the extruded is also essential
  • Hose between the nozzle and the surface of the indoor pool is for that Longitudinal and transverse orientation in the air gap are also responsible.
  • the pressure can be regulated, for example, by measuring the pressure with a connected air supply.
  • the extruded tube is under an even tension.
  • the tension influences the stretching properties of the resulting film in the longitudinal and transverse directions to a large extent.
  • the speeds of the take-off roller and the deflection roller located near the bottom of the spinning bath should be separately adjustable and coordinated with one another. The distance between the entry into the spinning bath and the deflection roller is
  • Deflecting roller is increasingly problematic with increasing hose diameter. With smaller calibres, the hose can still be laid flat without special aids. For larger diameters, it is advisable to work with additional shaping elements, which bring about a gradual adaptation to the flat form at a sufficient distance from the deflecting roller.
  • the tube then runs through various washing sections for further solidification, in which NMMO residues are removed. It is then usually plasticized (e.g. in an aqueous glycerol bath). The temperature of the
  • Plasticizer solution is generally 20 to 80 ° C, preferably 30 to 70 ° C.
  • the tube is then dried.
  • the drying in a hot air dryer is expediently carried out in several stages at a decreasing temperature (from approximately 150 ° C. at the entrance to approximately 80 ° C. at the outlet). If necessary, an additional internal pressure can increase during drying
  • Cross orientation of the hose can be achieved. Otherwise, the tube is inflated to the original caliber before the drying process is completed in order to maintain the degree of transverse orientation once achieved. Subsequently it is moistened again until its water content is about 8 to 20% by weight, preferably 15 to 18% by weight. The hose is then cut into lengthways of suitable width as required.
  • the mechanical properties of the food casing obtained in this way largely correspond to those of the known collagen casings.
  • the flat film according to the invention thus has a wet tensile strength in the longitudinal direction of approximately 4 to 12 N / mm 2 , preferably 5 to 8 N / mm 2 , and in the transverse direction of 4 to 7 N / mm 2 , a dry tensile strength in the longitudinal direction of 15 to 50 N / mm 2 , preferably 20 to 45 N / mm 2 , in the transverse direction from 17 to 28 N / mm 2 .
  • Longitudinal dry is about 12 to 30%, wet about 10 to 20%.
  • the elongation at break in the transverse direction is 20 to 25% in the dry state and 23 to 28% in the wet state.
  • the flat film according to the invention generally has a thickness of 20 to 60 ⁇ m. preferably 30 to 50 ⁇ m. It is therefore easy to chew and is suitable as an edible packaging cover, for example for cooked ham.
  • the production of edible food casings is also described in the unpublished application DE 101 29 539.
  • Example 1 (Edible flat film with precipitated cellulose and wheat bran)
  • the spinning mass was then extruded at a temperature of 90 ° C. through an annular gap die with a gap diameter of 30 cm and a gap width of 0.5 mm.
  • the resulting film tube passed through a 10 cm air gap in which it was kept wrinkle-free by compressed air acting from the inside before entering a precipitation bath consisting of a cooled (about 15 ° C), about 15% aqueous NMMO solution ,
  • the same cooled precipitation bath liquid was also introduced into the interior of the film tube, the level of the interior precipitation bath being approximately at the same level as that of the
  • the hose then ran through a precipitation bath section of 1.5 m in length, where it was deflected halfway by a roller located at the bottom of the precipitation bath. It was then stretched so far that the flat width after leaving the spinning skid was 51 cm.
  • the hose then went through 4 washing runners with a total of 8 deflection rollers arranged at the top and bottom, a bath depth of 2.5 m each and an air gap of 0.5 m.
  • water was introduced, which was passed through the wash runners in countercurrent. In this way the NMMO content at the exit of the first runner was kept at 12 to 16%.
  • the temperature was raised to 60 to 70 ° C in the last washing runners.
  • the tube was passed through a plasticizer runner containing a 10% glycerol solution.
  • the flat width of the hose was 47 cm when leaving the plasticizer runner.
  • the tube was then pre-dried in a jet dryer in an uninflated state, floating horizontally. Then it was dried between 2 pairs of squeeze rollers in the inflated state with hot air.
  • the dryer had multiple zones with the temperature decreasing from one zone to the next.
  • the zone at the entrance had a temperature of 120 ° C, at the exit of 80 ° C.
  • the hose had a flat width of 55 to 60 cm.
  • the hose was then moistened again until its water content was 8 to 12% (based on the weight of the hose).
  • the tube was then cut open in the longitudinal direction and wound up.
  • Example 2 (Edible film with precipitated cellulose, wheat bran and cellulose fibers)
  • Example 1 was repeated, but this time 1.7 kg of surface-crosslinked cellulose fibers with an average length of 150 ⁇ m and a maximum length of less than 1 mm and 2.3 kg ground and sifted to a grain size of less than 63 ⁇ m wheat bran (TG: 92%) were stirred into 67.9 kg of a 60% NMMO solution.
  • a spinning mass was produced from this as described in Example 1. This was processed into a tubular film, from which a flat film emerged in the longitudinal direction after the separation.
  • Example 3 (Edible flat film with precipitated cellulose and wheat bran)
  • a pH of 11 was set by adding NaOH.
  • An additional 12 g of propyl gallate were added as a stabilizer.
  • the mash obtained was metered into a continuously operating kneader. Water was then distilled off at a reduced pressure of about 25 mbar and a temperature of up to 99 ° C. The mash feed was adjusted so that the solution leaving the kneader had a refractive index n D of 1.4884 and a zero shear viscosity of 7,100 Pa s at 85 ° C.
  • Example 4 (Edible flat film with precipitated cellulose, zein and chalk) A suspension of 34.0 kg of 75% strength aqueous NMMO with a pH of 11.3.3 kg of zein and 5.4 kg of enzymatically pretreated pulp (TG: 50%) and 12 propyl gallate as a stabilizer was metered into a continuously working kneader. As described in Example 2, excess was then in the kneader
  • Example 5 (spinning mass with ground cellulose)
  • Spinning mass was then processed into an edible flat film as described.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Food Science & Technology (AREA)
  • Zoology (AREA)
  • Materials Engineering (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Jellies, Jams, And Syrups (AREA)
  • General Preparation And Processing Of Foods (AREA)

Abstract

L'invention concerne une pellicule plate comestible comprenant de la cellulose, au moins une charge non soluble ou non dissoute dans une solution de filage à base de nitratométhyl-3-méthyle-3-oxétanne (NMMO) et au moins un autre constituant dissous dans la solution de filage à base de NMMO, qui induit une perturbation de la structure de la cellulose précipitée. La pellicule plate est produite à partir d'une matière de filage contenant du monohydrate de NMMO, de la cellulose dissoute dedans et au moins un autre constituant dissous dedans, qui induit une perturbation de la structure de la cellulose précipitée ( ce constituant étant de préférence une protéine), au moins une charge non dissoute dans la matière de filage (de préférence des sous-produits du blé) et éventuellement également des fibres non dissoutes. Ladite matière de filage est extrudée à travers une filière plate ou à travers une filière annulaire de grand diamètre et est ensuite précipitée dans un bain de NMMO aqueux dilué. La pellicule plate présente sensiblement les mêmes propriétés mécaniques qu'une enveloppe de collagène, c.-à-d. qu'elle aussi aisée à mâcher. Ladite pellicule s'utilise par exemple pour emballer du jambon cuit.
PCT/EP2003/014441 2002-12-23 2003-12-18 Pellicule plate comestible Ceased WO2004058862A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003290076A AU2003290076A1 (en) 2002-12-23 2003-12-18 Edible flat film

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10261496.2 2002-12-23
DE2002161496 DE10261496A1 (de) 2002-12-23 2002-12-23 Eßbare Flachfolie

Publications (2)

Publication Number Publication Date
WO2004058862A1 true WO2004058862A1 (fr) 2004-07-15
WO2004058862A8 WO2004058862A8 (fr) 2004-09-16

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PCT/EP2003/014441 Ceased WO2004058862A1 (fr) 2002-12-23 2003-12-18 Pellicule plate comestible

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AU (1) AU2003290076A1 (fr)
DE (1) DE10261496A1 (fr)
WO (1) WO2004058862A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105343883A (zh) * 2015-10-27 2016-02-24 宁波工程学院 多孔碳酸钙复合埃洛石管微球的制备方法
DE102017005999A1 (de) 2017-05-28 2018-11-29 Entex Rust & Mitschke Gmbh Herstellung von essbaren Wurstpellen aus Kollagen oder gleichartigen Stoffen durch Extrudieren
EP3991563A1 (fr) * 2020-10-30 2022-05-04 Viskase Companies, Inc. Emballages et compositions cellulosiques comestibles et procédés de formation

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AT514137A1 (de) 2013-04-05 2014-10-15 Lenzing Akiengesellschaft Polysaccharidfaser und Verfahren zu ihrer Herstellung
AT514136A1 (de) 2013-04-05 2014-10-15 Lenzing Akiengesellschaft Polysaccharidfaser mit erhöhtem Fibrillationsvermögen und Verfahren zu ihrer Herstellung
AT514123B1 (de) 2013-04-10 2015-06-15 Lenzing Akiengesellschaft Polysaccharidfilm und Verfahren zu seiner Herstellung
AT514468A1 (de) 2013-06-17 2015-01-15 Lenzing Akiengesellschaft Hochsaugfähige Polysaccharidfaser und ihre Verwendung
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Publication number Priority date Publication date Assignee Title
CN105343883A (zh) * 2015-10-27 2016-02-24 宁波工程学院 多孔碳酸钙复合埃洛石管微球的制备方法
CN105343883B (zh) * 2015-10-27 2018-04-10 宁波工程学院 多孔碳酸钙复合埃洛石管微球的制备方法
DE102017005999A1 (de) 2017-05-28 2018-11-29 Entex Rust & Mitschke Gmbh Herstellung von essbaren Wurstpellen aus Kollagen oder gleichartigen Stoffen durch Extrudieren
EP3991563A1 (fr) * 2020-10-30 2022-05-04 Viskase Companies, Inc. Emballages et compositions cellulosiques comestibles et procédés de formation

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