Method for manufacture of pectin and sugar containing food vegetal fibres

FIELD: food industry.

SUBSTANCE: method for production of pectin and sugar containing food vegetal fibres of beet roots envisages initial raw materials washing at water temperature equal to 70-90°C and milling into fractions sized 5.0-20.0 mm. Simultaneously chips are sprayed with 30%-citric acid solution to provide for pH level in squeezed juice within the range of 4.0-4.5. Then one performs squeezing till pulp moisture content is equal to 70-80%, drying in a drying installation during the whole drying period at the product temperature within the range of 32-40°C, blown air humidity during the product drying being10-15%, till the ready product moisture content W=7-9%. The drying installation combines infrared and convective processes. Additionally, the obtained product is ground until homogeneous powdery condition.

EFFECT: method specificity is as follows: manufacture wastelessness, toxic reagents absence, efficiency and high performance due to raw materials maximum usage, environmental safety and minimum number of technological steps.

2 cl

 

The invention relates to a method of obtaining dietary fiber, including sugar-containing cellulosimicrobium complex derived from plant material, in particular from sugar beet. The resulting product has a wide application in the food industry in the production of confectionery, bakery, canned products, sauces, etc.

A method of producing pectin and dietary fiber from sugar beet, it includes crushing, washing chips anolyte, double extraction of the washed chips anolyte, pressing Proektirovanie mass with the Department of pulp and extract, concentrating the extract, precipitation of pectin with ethanol and drying of the pectin and the pH of the anolyte to wash the chip is 3.2 to 3.5, anolyte to a first extraction 6,4-6,6, anolyte to the second extraction 2,45-2,65, wherein the pulp is washed with a catholyte with a pH of 7.5-8.0 and pressed with the office of pressed pulp and wash liquid, the latter is mixed with the extract before it is concentrated and the particles are pressed pulp was milled to a predetermined size, dehydration and drying to obtain dietary fiber (patent RU 2261868, publ. 10.10.2005). The proposed method allows to increase the efficiency of use of raw materials upon receipt of pectin due to the additional extraction of dietary fiber good ka�society, however, it is not possible to obtain a sugar-containing product.

A method of obtaining dietary fiber from beet pulp, providing for the extraction of sugar and the removal of all soluble substances by washing the pulp with water, disinfection and probelly a hydrogen peroxide solution or an ozone treatment or irradiation (CS 270967, A23L 1/21, 1991). The disadvantage of this method is high cost, but also the formation of substances that adversely affect the human body.

A method of obtaining dietary fiber from sugar beet pulp sugar beet production, including pressing of pulp, a steam treatment with saturated steam with a temperature of 125-130°C for 15-20 minutes. Processed vegetable mass was extracted with 3-5% hydrogen peroxide solution for 15 to 20 minutes to problemany. After extraction, the fiber is pressed to a solids content of 15,0-16,0%, dried and pulverized to a powder (patent RF №2175844, A23L 1/214, A23L 1/308, C13C 3/00, publ. 20.11.2001). High temperature treatment allows to eliminate the smell of raw materials and solve the problem of microbiological purity of the product, however, leads to the destruction of pectin and reduce the degree of water retention of cellulose fibres.

A method of producing microfibrillated pectin-containing cellulose fibers, including steaming fraction, p�obtained by crushing of raw materials, with triple washing, and subsequent bleaching with triple washing, with possible additional stages of homogenization and infrared convective drying. The resulting material has wide application in food and non-food industries (patent RU 2501325, publ. 20.12.2013). This method is characterized by its gentle processing conditions of raw materials with preservation of uniformity of the structure of the final product, does not require a high level of energy consumption and other production costs, however, does not allow to obtain a product with the claimed properties, namely, given the way the product is not sugary.

The above disadvantages of the known methods, each separately or all together, are to reduce technological efficiency, the increase in the cost of production, certain difficulties in the scale of production, does not allow to obtain a product with the claimed properties.

The task of the invention is economical, does not require the use of harsh toxic reagents of the method of food pectinesterase cellulose fibers containing triune sugary cellulosimicrobium complex, and is characterized by the following set of essential features:

1) pollution-free production;

2) no toxic Rea�coefficients;

3) the ability of the closed cycle of water supply;

4) no need for special expensive water treatment technologies;

5) high productivity by maximizing the use of raw materials;

6) environmentally friendly production;

7) the minimum number of process steps;

8) scalability of production.

The technical result of the invention is to improve the quality of the finished product with a set of significant characteristics:

1) has high nutritional value due to the high content of pectin substances (25-30% by weight solids);

2) environmentally safe product;

3) has prebiotic properties;

4) has genotoxicity value in connection with the content of pectin, cellulose, hemicelluloses, preventing the absorption of toxins and radionuclides;

5) has enterosorbtsionnoe value;

6) has a high degree of water retention (a measure of water retention is $ 13);

7) is the regulator of rheology during production of products with the desired viscosity and texture due to the formation of grid structures through intermolecular bonds;

8) completely preserves its structure and properties under certain drying conditions;

9) the dried product is rapidly renewable�.

The technical result is achieved in that the feedstock is washed with water at a temperature of 70-90°C, crushed raw material to specific size fractions with simultaneous irrigation chips 30% citric acid solution, with the pH of the pressed juice in the range of 4.0 to 4.5, squeezed to a moisture content of pulp 70-80%, produce drying in the drying unit, combining infrared and convective processes, when the product temperature during the drying period in the range of 32-40°C, humidity of the blown air when drying product 10-15%.

The technical result is achieved due to the choice of the optimal temperature and time indicators of process steps.

The method is implemented as follows.

In the production pectinesterase food plant fibers as raw materials preferably used sugar beet. The feedstock is purified from green leaves, served on a power washer for cleaning, remove residual soil, residue-green pigment. Washing produce with water temperatures of 70-90°C, preferably 70-80°C, optimally at 75°C.

Carefully washed beets served on the grinding area, simultaneously with the grinding carried irrigation chips 30% solution of citric acid, the pH of the pressed juice should be in the range of 4.0 to 4.5 in order to prevent the destruction of pectin.

As a result�the acid treatment dehydration occurs product prevent bacterial contamination and preventing the oxidation processes that lead to the darkening of the product. The dimensions of the milled fractions: length of 5.0-20.0 mm, preferably of 15.0 mm, a cross section of 1-2. 5 mm, preferably 2 mm.

The crushed fraction is fed to the equipment sometime and hold pressed to a moisture content of pulp 70-80%, preferably 70-75%, optimally 72%. Acidified juice is fed into the tank for inversion dikhanov, and the pressed pulp is a plot of the infrared convective drying.

The drying process is carried out until the moisture content of the product W=7-9%, preferably 7-8. 5%, and optimally of 8.0%. At lower humidity is armoretrust pectin, and an increase in humidity decreases the shelf life of the product. High humidity during the storage process begins the hydrolysis of sugars and increase the titer of bacteria.

The best option for drying pectinesterase cellulosic product is a drying unit that combines infrared and convection processes. The product temperature during the drying period must be in the range of 32-40°C, preferably 35, 32 optimally. The humidity of the blown air when drying product 10-15%.

The result is a finished product, pale yellow, in the form of flakes, with a total sugar content in terms of dry substances� (ACC) to 67%, with a mass fraction of moisture not more than 8.0%, with a total content of pectin substances in ACC to 22-27%, the content of mineral admixtures on ACC not more than 1.5%.

The resulting product may be subjected to additional stages of grinding to a uniform powder, with subsequent packaging in paper bags for hygroscopic products according to GOST 2226.

Powdery finished product can be restored to obtain a hydrogel humidity of about 72% with the contents of ACC 1-5%.

1. Method of production pectinesterase dietary fiber from sugar beets, comprising leaching a raw material at a water temperature of 70-90°C, and grinding of raw materials up to the particle size 5,0-20,0 mm with simultaneous irrigation chips 30% citric acid solution, with the pH of the pressed juice in the range of 4.0 to 4.5, pressed to a moisture content of pulp 70-80%, the drying in the drying unit, combining infrared and convective processes, when the product temperature during the drying period in the range of 32-40°C, humidity of the blown air when drying product 10-15%, to a moisture content of the finished product W=7-9%.

2. A method according to claim 1, characterized in that the product obtained according to claim 1, is subjected to grinding to a homogeneous powder.



 

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SUBSTANCE: invention relates to the pharmaceutical industry, namely to a method of obtaining pectins from a biomass of cultured tissues of plants Silene vulgaris (M.) G. The method of obtaining pectins with an increased content of galactose residues in side carbon chains from Calusa cultures includes raw material destruction, extraction with water, processing of the biomass with hydrochloric acid, water washing, extraction with ammonium oxalate solution, sedimentation of polysaccharide with ethanol, dialysis and lyophilising, with Caluse cultures being preliminarily grown for 21 hours on an agarised nutrient medium, which contains the ferment 1,4-β-D-galactozyltranspherase in a specified concentration, and as the raw material the biomass of cultured tissues of plants Silene vulgaris is applied.

EFFECT: method makes it possible to obtain physiologically active pectins, which have a specified structure and stable chemical composition.

1 tbl, 4 ex

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FIELD: chemistry.

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3 ex, 1 tbl

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2 ex

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5 cl, 1 dwg, 4 ex

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1 tbl

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