A method of making a protein sausage casing

 

(57) Abstract:

Usage: in the meat industry. The inventive as tanning agent in addition to formaldehyde and glyoxal enter glutaric aldehyde. In this way the tannins are used in the following concentrations by weight of dry matter of collagen formaldehyde 0,15 0,22; glyoxal 0,3 0,6; glutaric aldehyde 0,05 0,06. table 1.

The invention relates to the meat industry, in particular the production of artificial collagen casing for sausages. The method can be used in the manufacture of edible shells for forming cooked, boiled-smoked, smoked and smoked sausage, and sausages.

Artificial protein shell, successfully replacing scarce natural intestinal raw materials obtained by processing collagen containing waste enterprises in the leather industry. Use split hides and skins of bovine animals, containing protein-collagen having a fibrous structure. Splits are subjected to liming, acid processing, crushing and razvlecheniy, with the result that he turns into a homogeneous plastic mass from which the molded shell. Molded shell then vysushila the shell acquires properties, required for use in sausage production. Tanning increases the strength of the shell gap in irrigated condition, heat and moisture resistance, temperature welding.

The main reason for the above changes is the hardening of the spatial structure of collagen due to cross-linking tanning connections between the molecular chains of the protein structure. In the structure of collagen has various functional groups entering into reaction with tannins. Tanning effect on collagen have aldehydes, compounds of phenolic nature, and other substances.

Tanning is carried out in various ways. It is possible to carry out the tanning irrigation dry shell, filled with air, a solution containing tannins. Another option is to dip molded shell in a solution of tanning agents. Sometimes the process of tanning begin at the stage of grinding the raw materials, i.e., before forming the tubular shell, or by homogenization of the collagen mass.

Tanning aldehydes linking aldehydes does not always lead to the formation of additional cross-links in the collagen structure. His work has been performed by different groups of the collagen structure attached aldehydes, but the fact that aldehydes are capable of oligomerization and polymerization.

A known method of making a protein sausage casing, comprising a tanning exposure with a moulded shell for 20 minutes in the tub with tanning liquid containing up to 5% glyoxal, 25% of hexamethylenetetramine and 70% water with a pH of 6.5. After that, the membrane was washed with running water and dried [1]

Obtained in this way, the shell has a slightly yellowish color and high stability during heat treatment.

The disadvantage of this method is to obtain membranes with low technological and sanitary-hygienic properties due to the uneven distribution of tannins throughout its thickness.

A method of obtaining protein sausage casing, in which as a tanning material at the stage of homogenization of the collagen mass is added glutaric aldehyde in an amount of from 0.3 to 1 wt. to the dry substance of collagen [2] the resulting membrane after incubation for 2 days at a relative humidity of 90% contains almost no unbound aldehyde. The finished coating has a high mechanical strength in dry and wet conditions. However, when tablenamehere its structure, and after 24 hours, it hardens. This complicates the processing of the collagen mass in the production of collagen casing.

Known selected as a prototype method of making a protein sausage casing, providing for the introduction of tannins on the stage of the preparation of the collagen mass [3] as a tanning agent in the method using formaldehyde and glyoxal. Ready weight molded and dried. The method has found wide application in the domestic meat industry. On the organoleptic, physico-mechanical and physico-chemical indicators of consumer properties, the membrane must comply with the requirements and standards specified in THE 10-10-01-03-89 "Shell artificial protein "bilkozynu"".

However, in the last two years in the production of protein sausage casings have a tendency to reduce its volume associated with a deficit of glyoxal. Cause a critical situation is to stop in the 1991 edition of glyoxal only domestic plant. Therefore, the need arose for the purchase of glyoxal abroad for hard currency, which causes problems to meet the needs of production, and, in addition, the manufacture of the shell becomes extremely Dorogi its consumption in the manufacture of protein sausage casing.

The objective of the invention is to reduce the consumption of scarce glyoxal, while maintaining consumer properties of protein sausage casing at the same level.

Reduction of glyoxal is achieved in that in the method of making a protein shell, providing for the preparation of collagen masses with the introduction of formaldehyde and glyoxal as a tanning agent, shaping the mass, drying, according to the invention, in the mass as a tanning agent further added glutaric aldehyde, while the tannins are used in the following concentrations in the dry mass of collagen: formaldehyde 0,15-0,22 glyoxal 0,3-0,6 glutaric aldehyde 0,05-0,06

A comparison of the proposed technical solutions to the prototype and other technical solutions allowed us to conclude that it is not known from the prior art and therefore meets the criterion of "novelty."

Additional introduction to the collagen mass glutaraldehyde and the use of three tanning agent in the inventive concentrations provide save the active process of tanning. The decrease in the concentration of glyoxal in comparison with the known method by 0.5-0.6% by weight of dry matter of collagen covered almost nab the difference in the values of molecular weights of these tannins, it should be assumed that one weight part of formadehyde involved in the formation of approximately the same number of cross ties, and two weight parts of glyoxal. Moreover, the concentration of formaldehyde remains below the level at which it begins to exert a significant influence on the processes of polymerization. The decrease in the concentration of glyoxal, partially offset by a small concentration of glutaraldehyde, both aldehyde groups which react with functional groups of collagen. However, the formation of cross-links between the molecular chains of the collagen structure the presence of formaldehyde and glutaraldehyde in the claimed concentrations does not provide and we would expect a weakening effect tanned, reducing consumer properties, primarily strength. The reason for the unexpected preservation of consumer properties is itself a reduced concentration of glyoxal, causing suppression of unwanted its polymerization and, consequently, increase the use of glyoxal in the crosslinking.

It is essential to use a tanning agent in the inventive within contentteller, and the desired strength of the finished shell. Exceeding the upper limit concentration of formaldehyde and glutaraldehyde causes a sharp pressure increase collagen mass and does not allow for its rapid hardening to produce a molding. In addition, the overestimation of the concentration of formaldehyde in the collagen mass leads to deterioration of such characteristics of the finished shell, as the mass concentration of formaldehyde, migrating from the shell in the water extract. The use of glyoxal in concentrations of more than 0.6% by weight of dry matter of collagen impractical from an economic point of view.

Thus, the effect prescribed by the claimed solution of transformations, characterized by distinctive features of the prototype substantial evidence on the achievement of the technical result is not necessary for the expert in the obvious way from the prior art. Therefore, the present invention involves an inventive step.

A new method of making a protein sausage casings tested under production conditions. Collagen mass prepared from gelievogo leather hides and skins of bovine animals, past the liming, acid treatment, the subsequent grinding on cous is floveny material was kept in the refrigerator for 1-5 days at 9,53,5aboutC and a relative humidity of 80% After the mass was placed in a stirrer, was diluted with water to a dry matter content of collagen 11,60,3% and thoroughly mixed. Under stirring the mass introduced the calculated amount of formaldehyde, glyoxal and glutaraldehyde. Then the mass was stirred for 5 h, filtered, cooled in the refrigerator for 1.5-2 days and sent to the molding shell with a diameter of 60 mm. Processing molded shell further carried out in different ways.

Some party shell after drying 5 times was treated with neutralizing solution and then blew air to remove excess moisture and dried. Mass fraction of moisture in the shell, extending from the drying line, 14-22% Then spent the maturation of the wound on the reel shell traditionally in stock maturing within 16 days.

Other parties molded shell once was treated with water followed by cooling the air and also dried. After that, the membrane was rewinding in the reel, put the reel on the box-pallets and transported to the curing oven. The heat treatment is carried out by air heated to 90-130aboutFrom within 3-6 hours Upon completion of heat treatment, box-pallets naprimer implementation of the proposed method, physico-mechanical and physico-chemical characteristics of the resulting protein sausage casing in the table. For the comparison presented here is THAT 10-10-01-03-89 requirements for shell, obtainable by the method prototype.

P R I m e R 1. The stirrer was loaded ryflowane material, past exposure in the refrigerator for 5 days: 800 kg from the party with a mass fraction of solids 13% and 700 kg of the party with a mass fraction of solids 16% calculate the mass of added water were carried out in accordance with the instruction manual for the production of artificial protein sausage casing "bilkozynu" (MEADOWS), M. 1989. For the manufacture of collagen mass, with a mass fraction of dry substances 11.6% in this case added 362,07 kg of water. Ryflowane material and water are thoroughly mixed. Next, while stirring the mass added to the mixture of aldehydes containing 0,430 kg of formaldehyde (0.2% of the dry mass of collagen), 1,075 kg glyoxal (0.5% by weight of dry matter of collagen), 0.118 kg glutaraldehyde (to 0.055% by weight of dry matter of collagen). After stirring the mass for 5 h, it was filtered and kept in the refrigerator for 2 days. Then from the mass was sformovat shell with a diameter of 60 mm, treated with water, dried and in which Olecki. The finished coating had characteristics that satisfy the requirements of THE 10-10-01-03-89:

breaking strength in the wet state in the longitudinal direction of 3.25 kg; in the transverse direction 4,10 kg; mass concentration of formaldehyde, migrating from the shell in the water extract of 1.23 mg/DM3;

mass fraction of unbound glyoxal 0,015%

P R I m m e R 2. The share of the molding shell with a diameter of 60 mm was prepared collagen mass, with a mass fraction of dry substances 11.6% In the stirrer is placed processed, as described above, the material of the three parties: 500 kg from the party with a mass fraction of solids 13% 500 kg, with a mass fraction of solids of 18% and 500 kg, with a mass fraction of solids 19% was Added into the mixer estimated amount of water equal to 655,17 kg, and spent mixing. Then in mass added 0,375 kg formaldehyde (0.15% of the dry mass of collagen), 1,499 kg glyoxal (0.6% of the dry mass of collagen), 0,150 kg glutaraldehyde (0,06% by weight of dry matter of collagen) and the mixture was stirred for 5 hours then the mass was filtered, subjected to aging in the fridge for 2 days and sformovat in the shell. The membrane was treated with water, dried and subjected to heat treatment at 120aboutWith over 5 hours At the conclusion of the/P> P R I m e R 3. Ryflowane material produced as described above from gelievogo leather hides of cattle in the amount of 800 kg from the party with a mass fraction of solids 13% and 700 kg of the party with a mass fraction of solids 16% mixed with 362,07 kg of water. Under stirring the mass introduced a mixture of aldehydes containing 0,473 kg formaldehyde (0,22% by weight of dry matter of collagen), to 0.645 kg glyoxal (0.3% of the dry mass of collagen), to 0.108 kg glutaraldehyde (0.05% of the dry mass of collagen) and continued stirring for another 5 hours and Then the mass was filtered, was kept for 1.5 days in the refrigerator and sformovat in a shell with a diameter of 60 mm Membrane after treatment with water, dried and subjected to accelerate the ripening treatment, continued for 5 h at 120aboutC. After heat treatment conducted hydration shell.

Characteristics of the obtained membranes meet the requirements of THE 10-10-01-03-89.

P R I m e R 4. In a homogeneous collagen mass, made from reflowing material composed of 500 kg, with a mass fraction of solids 13% 500 kg, with a mass fraction of solids of 18% to 500 kg, with a mass fraction of solids 19% and 655,17 kg of water under stirring introduced odnovremennaya), 0,075 kg glutaraldehyde (0.03% of the dry mass of collagen) and continued stirring for another 5 hours and Then the collagen mass was filtered and kept for 2 days in the refrigerator at a temperature 9,53,5aboutC. After exposure of the collagen mass was sformovat in a shell with a diameter of 60 mm, the membrane was dried, five were treated with neutralizing solution, removed the excess moisture from the shell by air blowing, shell, dried. Dried shell held in the warehouse ripening at room temperature and humidity of 70% for 16 days.

Made protein sausage casing is unsatisfactory physical-mechanical properties in the transverse direction breaking strength for the membrane in the wet state is less than the value programmed in THE 10-10-01-03-89.

P R I m e R 5. The stirrer was loaded ryflowane material, past exposure in the refrigerator for 5 days: 900 kg from the party with a mass fraction of solids 16% and 600 kg from the party with a mass fraction of solids of 12% For the manufacture of collagen mass, with a mass fraction of solids of 11.6% added 362,07 kg of water. Ryflowane material and water are thoroughly mixed. Under stirring the mass added to the mixture of aldehydes, which contains collagen), 0,173 kg glutaraldehyde (0,08% by weight of dry matter of collagen). After further mixing in the mass of raised pressure, and she began to harden. Molded shell failed.

P R I m e R 6. For forming a shell with a diameter of 60 mm was prepared collagen mass, with a mass fraction of dry substances 11.6% In the stirrer is placed processed ryflowane material from two parties: 900 kg from the party with a mass fraction of solids 16% and 600 kg from the party with a mass fraction of solids of 12% Added the calculated amount of water equal to 362,07 kg, and spent mixing. Then the mass of added value (0.475) kg formaldehyde (0,22% by weight of dry matter of collagen). 0,432 kg glyoxal (0,2% by dry mass of collagen), to 0.108 kg glutaraldehyde (0.05% of the dry mass of collagen) and the mixture was stirred for 5 hours then the mass was filtered, passed within 1.5 days in the refrigerator and sformovat in a shell with a diameter of 60 mm, the Membrane was dried and processed 5 times neutralizing solution. After blowing air membrane was dried until the content of the mass fraction of moisture equal to 11% Maturation shell held in stock maturation.

Made shell has in the longitudinal direction of the gap is ryflowane material, the last excerpt in the refrigerator for 5 days: 400 kg from the party with a mass fraction of solids of 12% 300 kg from the party with a mass fraction of solids 15% 200 kg from the party with a mass fraction of solids of 18% and 600 kg from the party with a mass fraction of solids 19% For the manufacture of collagen mass, with a mass fraction of solids of 11.6% added 594,83 kg of water. Ryflowane material and water are thoroughly mixed. Under stirring the mass added to the mixture of aldehydes containing 0,365 kg formaldehyde (0.15% of the dry mass of collagen), 1,701 kg glyoxal (0.7% of the dry mass of collagen), 0,146 kg glutaraldehyde (0,06% by weight of dry matter of collagen). The operation of the stirring continued for another 5 hours After that, the mass was filtered, survived for 2 days in the refrigerator and sformovat in a shell with a diameter of 60 mm Shell has dried, five were treated with neutralizing solution to remove excess moisture held blowout sheath air and dried it before the content of the mass fraction of moisture, equal to 11% of the maturation of the membrane was carried out for 16 days at room temperature and humidity 60-75% in stock maturation.

The finished coating has characteristics that satisfy the requirements of THE 10-10-01-03-89, however, is on the inappropriate.

P R I m e R 8. For forming a shell with a diameter of 60 mm was prepared collagen mass, with a mass fraction of dry substances of 11.6% For this mixer was placed processed ryflowane material from four parties: 400 kg from the party with a mass fraction of solids of 12% 300 kg from the party with a mass fraction of solids 15% 200 kg from the party with a mass fraction of solids of 18% and 600 kg from the party with a mass fraction of solids 19% Added 594,83 kg of water and spent mixing. Then in mass added 0,243 kg of formaldehyde (0.1% by dry mass of collagen), 1,458 kg glyoxal (0.6% of the dry mass of collagen), 0,146 kg glutaraldehyde (0,06% by weight of dry matter of collagen) and the mixture was stirred for 5 hours then the mass was filtered, subjected to aging in the fridge for 2 days and sformovat in the shell. The membrane was treated with water, dried and subjected to heat treatment at 120aboutC for 5 hours In conclusion, spent the moisture of the finished shell.

Made shell has an unsatisfactory physical-mechanical properties in the longitudinal direction breaking strength for the membrane in the wet state is less than the value programmed in THE 10-10-01-03-89.

P R I m e R 9. In the mixer segueway substances 13% and 700 kg of the party with a mass fraction of solids 16% For the manufacture of collagen mass, with a mass fraction of solids of 11.6% added 362,07 kg of water. Ryflowane material and water are thoroughly mixed. Under stirring the mass added to the mixture of aldehydes containing 0,540 kg formaldehyde (0.25% of the dry mass of collagen), 0,648 kg glyoxal (0.3% of the dry mass of collagen), to 0.108 kg glutaraldehyde (0.05% of the dry mass of collagen). After further mixing in the mass sharply increased the pressure and she started to harden. Molded shell failed. In the example of the manufacture of the membrane the concentration of formaldehyde exceeds the upper limit of the claimed concentration of formaldehyde.

The proposed method of making a protein sausage casing provides a reduced flow of glyoxal about two times. New technology can significantly reduce the cost of manufactured casings.

A METHOD of MAKING a PROTEIN SAUSAGE CASING, providing for the preparation of collagen masses with the introduction of formaldehyde and glyoxal as a tanning agent, shaping the mass, drying, characterized in that the mass as a tanning agent impose additional glutaric aldehyde, while the tannins are used in the following concentrations by weight of dry matter of collagen:

Formaldehyde 0,15 0,22,

 

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