Food or edible material: processes – compositions – and products – Surface coating of a solid food with a liquid – Preserving
Patent
1986-12-22
1988-02-09
Corbin, Arthur L.
Food or edible material: processes, compositions, and products
Surface coating of a solid food with a liquid
Preserving
426332, 426643, A23B 410, A23B 414
Patent
active
047241497
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE ART
The present invention relates to methods for preservation of food products.
PRIOR ART
One prior-art method for preservation of balyk (i.e., cured fillet of sturgeon or salmon) semiproduct consists in application of common salt to its surface, placing the semiproduct in salt-curing vats, filling-in with a saturated sodium chloride solution, keeping till a required salt content, removing from the salt solution, washing off undissolved salt and holding on rack stands for a uniform salt distribution in the flesh of the fish. Upon holding (attaining uniform salt content) the thus-salted balyk semiproduct is put in storage. To this end the salted balyk semiproduct is placed in containers, filled-in with an aqueous common salt solution having a density of 1.11 to 1.14 g/cm.sup.3 and stored at minus 2.degree. to minus 8.degree. C. (cf. T. I. Makarova, A. I. Tinyakova, "Collected technological instructions on fish processing", Moscow, Pishchevaya promyshlennost' Publishers, 1980, v. 2, pp. 63 to 67 (in Russian).
For a better quality of a salted balyk semiproduct in the course of storage in a common salt solution, some antioxidants of the class of gallates, butylhydroxytoluene, and butylhydroxy-anisole are known to be added to that solution (cf. L. I. Yudina, "Application of antioxidants to prevent fat oxidation in pickled Atlantic herring", Moscow, Trudy VNIRO (Proceedings of the USSR Marine Fisheries and Oceanography Research Institute, 1962, v. 45, pp. 32 to 35).
However, the aforementioned methods suffer from a number of cardinal disadvantages:
washing of nitrogen-containing protein substances and lipids from a salted balyk semiproduct when stored in an aqueous common-salt solution, which results in a reduced nutritive value of the product;
swelling of muscular tissue which occurs with a salted balyk semiproduct when stored in the aforesaid solution, affects adversely the quality of the product and leads to a considerable loss of the product mass during subsequent storage;
transportation of the semiproduct in containers filled with the salt solution involves unjustified use of hauling facilities due to a considerable mass of the solution and the containers.
The invention has for its object to provide such a method for preservation of a balyk semiproduct that would make it possible to retain its nutritive value, and eliminate loss of its protein and lipid components.
DESCRIPTION OF THE INVENTION
The object is accomplished due to the fact that there is provided a method for preservation of a balyk semiproduct by salt-curing and holding the original product, and there-after, according to the invention, applying to the balyk semiproduct after holding a protective coating of a polymer composition containing polyvinyl alcohol, a mixture of polyhydroxyethyleneglycol ethers of monoethanolamides of synthetic fatty acids of the C.sub.10 -C.sub.16 fraction sorbic acid, glycerol, water, the mass percentage content of the components of said polymer composition being as follows:
______________________________________ polyvinyl alcohol 0.1 to 25.0
mixture of polyhydroxyethyleneglycol
0.00024 to 0.06
ethers of monoethanolamides of synthetic
fatty acids of the C.sub.10 -C.sub.16 fraction
sorbic acid 0.01 to 4.0
glycerol 10 to 15
water to make up 100,
______________________________________
with an aqueous modifying solution of the following mass percentage
composition:
______________________________________ modifier 1 to 25
water to make up 100.
______________________________________
It is desirable that use be made of boric acid and salts thereof as well as water-soluble metal chlorides as the modifier.
BEST MODE OF CARRYING THE INVENTION INTO EFFECT
The method of the invention is carried into effect as follows.
The essence of the method of preservation of a balyk semiproduct resides in that an original fishery product is subjected to salt-curing, holding, whereupon the original product is given a protective coating of a polymer composition either by dipping in
REFERENCES:
patent: 3806612 (1974-04-01), Satz et al.
patent: 4303685 (1981-12-01), Katoh et al.
patent: 4431679 (1984-02-01), Crawford
Belyatskaya Olga N.
Bulatnikova Lidia I.
Egorov Vladimir D.
Gul Valentin E.
Guseva Vera K.
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