The method of obtaining dietary fiber from beet pulp

 

(57) Abstract:

The invention relates to the production of dietary fiber from vegetable raw materials. The method involves the mixing of the pulp particles with the electrochemically activated solution, grinding them to a specified size and a double extraction of the crushed mass at a temperature of 20-25C by mixing it with electrochemically activated solution. Proektirovaniya mass is subjected to deodorization at a temperature of 60-65S by mixing it with electrochemically activated solution. Then dewatered fiber and dried at a temperature of 55-60C when pre-mixed with the finished product. As the electrochemically activated solution using an anolyte having a pH of 6.1-6.3 and the redox potential of +700 to +800 mV relative to silver chloride reference electrode, obtained by treatment of a solution of ammonium sulfate in the anode chamber of a diaphragm electrolyzer. Use the anolyte having a pH of 4.0-5.0 and redox potential from +800 to +900 mV relative to silver chloride reference electrode, obtained by processing sodium thiosulfate solution in the anode chamber diaphragme the th for different sectors of the food industry, with improved properties: high water-holding capacity and adsorption capacity, and to improve sanitary and hygienic working conditions. table 1.

The invention relates to methods for dietary fiber (MF) from vegetable raw materials.

A method of obtaining dietary fiber from beet pulp, providing for mixing of the pulp particles with Catolica, grinding them to a specified size, twofold extraction of the crushed mass at a temperature of 20-25C by mixing it with Catolica, deodorization proektirovanii mass at a temperature of 60-65S by mixing it with Catolica, dehydration fibers and drying at a temperature of 55-60C when pre-mixed with the finished product. Catholyte with a pH of 5.7-6.0 and redox potential from -80 to -110 mV used in the processes of grinding particles in the pulp, extraction and deodorization, obtained by treatment of a solution of sodium chloride in the anode chamber of a diaphragm electrolyzer. (U.S. Pat. EN 2183097 C1, publ. 10.06.2002, bull. No. 16).

The disadvantage of this method lies in the low quality of ROS, namely low water-holding capacity (WAC) and the adsorption capacity because of the catholyte, the shredded beet pulp components of dietary fiber - pectin and lignin, which are determined by the water retention capacity and adsorption capacity of the RO.

The technical result of the invention is to improve the quality of dietary fiber.

The technical result is achieved in that in the method of obtaining dietary fiber from beet pulp, providing for mixing of the pulp particles with the electrochemically activated solution, grinding them to a specified size, twofold extraction of the crushed mass at a temperature of 20-25C electrochemically activated solution, deodorization proektirovanii mass at a temperature of 60-65S by mixing it with electrochemically activated solution, dehydration fibers and drying at a temperature of 55-60C when pre-mixed with the finished product, what's new is that as the electrochemically activated anolyte solution using, having a pH of 6.1-6.3 and the redox potential of +700 to +800 mV relative to silver chloride reference electrode, obtained by treatment of a solution of ammonium sulfate in the anode chamber of a diaphragm electrolyzer, or the anolyte having a pH of 4.0-5.0 and redox potential from +800 to +900 the sodium in the specified camera diaphragm electrolyzer.

The method is as follows. Conduct electrochemical activation of an aqueous solution of ammonium sulfate ((NH4)2SO4) to a pH of 6.1-6.3 and ORP from +700 to +800 mV or an aqueous solution of sodium thiosulfate (PA2S2O3) to pH 4.0-5.0 and ORP from +800 to +900 mV.

Particles of fresh beet pulp is mixed with the anolyte and crushed in the mill until the particle size of the pulp 3-5 mm. Adding anolyte before grinding particles of pulp helps to reduce the darkening. The ground mass of pulp is subjected to a double extraction at a temperature of 20-25C by mixing it with the anolyte. After each step, the extract is separated in a filter centrifuge. Proektirovaniya mass is subjected to deodorization at a temperature of 60-65S by mixing it with the anolyte, with subsequent dehydration. Partially dehydrated mass is then dried at a temperature of 55-60C when pre-mixed with the finished product. The dried product moisture content of about 9% scatter. The fraction with a particle size of more than 0.4 mm is mixed with the dehydrated mass before drying.

The anolyte obtained by electrochemical activation solutions of ammonium sulfate or sodium thiosulfate, differs in a number of pravlenie with the anolyte has a greater extracting ability and washes out of the shredded beet pulp is not only soluble substances, but valuable components of dietary fiber, pectin and lignin, which are determined by the water retention capacity and adsorption capacity of the RO. Therefore, the use of analyte in the extraction process are obtained by the RO of a higher quality than when using Catolica the anolyte has a higher bleaching and disinfecting properties due to the fact that it is saturated with products anodic electrochemical reactions: N+-ions; ozone; atomic oxygen radicals (where x and z are integers), with the properties of oxidants and decolorizing agents.

Example 1. Conduct electrochemical activation of the sodium thiosulfate solution, as a result of the anolyte with the following parameters: pH 4.2; ORP = +840 mV. 1 kg of fresh beet pulp mixed with cooked anolyte and ground in a disintegrator to obtain particles of pulp size 3-5 mm Crushed mass of pulp is subjected to a double extraction at a temperature of 25 C by mixing with anolyte. After each step, the extract is separated in a filter centrifuge. Proektirovaniya mass is subjected to deodorization at a temperature of 65 degree Celsius by mixing the analyte with subsequent dehydration of the pulp fibers. Partly as a product moisture content of about 9% scatter. The fraction with a particle size of more than 0.4 mm is mixed with the dehydrated mass before drying.

Thus obtained PV have the following characteristics: WAC of 6.1 g of water/g PV, the adsorption capacity of 23.5 mEq/g PV, white - 89,7% of the device.

Example 2. Conduct electrochemical activation of ammonium sulfate solution, which receive the anolyte with the following parameters: pH 6.2 and ORP = +725 mV. Further, the method is carried out as in example 1. The result is PV with the following characteristics: WAC 6.4 g of water/g PV, the adsorption capacity of 20.8 mg-EQ/g PV, white - 88,9% of the device.

In parallel PV were obtained from sugar beet pulp by a known method. They had these characteristics: WAC - 5,4 g of water/g PV, the adsorption capacity of 18.5 mEq/g PV, white - 85,5% of the device.

Comparing the properties of the PV from beet pulp obtained by the known and proposed methods, we can conclude about the improvement of the quality of ROS that are obtained by the proposed method, compared with the closest analogue.

The composition and properties of dietary fiber, obtained by the proposed method, in comparison with the known method presented in the table.

Comparing in table NWO is that the technical result of the invention is achieved, i.e. received PV superior quality. The proposed method allows to increase the total number of (output) PV 4-5%, including cellulose 2-3%, hemicellulose - 1-2%, pectin substances 2-4%, lignin - 2%. Improve the functional properties of PV - increase WAC 0.6-0.7 g water/g PoE and the adsorption capacity of 2.4 to 6.0 mEq /g PV. White product increased by 2.0 to 5.5 unit of the device.

Dietary fiber, obtained using the anolyte ammonium sulfate, can be used in the manufacture of bakery products, sausages, stuffing and so on, that is, where high water-holding capacity of components. And dietary fiber, obtained using the anolyte sodium thiosulfate, can be used for cooking medicinal purposes, as these fibers have a high adsorption capacity.

Thus, the proposed method is compared with the closest analogue allows to obtain dietary fiber, which are a valuable addition to the various sectors of the food industry, with improved properties - increased water-holding capacity and adsorption capacity.

The method of obtaining food solution grinding them to a specified size, twofold extraction of the crushed mass at a temperature of 20-25C electrochemically activated solution, deodorization proektirovanii mass at a temperature of 60-65S by mixing it with electrochemically activated solution, dehydration fibers and drying at a temperature of 55-60C when pre-mixed with the finished product, characterized in that the electrochemically activated solution using an anolyte having a pH of 6.1-6.3 and the redox potential of +700 mV to +800 mV relative to silver chloride reference electrode, obtained by treatment of a solution of ammonium sulfate in the anode chamber of a diaphragm electrolyzer, or anolyte having a pH of 4.0-5.0 and the redox potential of +800 mV to +900 mV relative to silver chloride reference electrode, obtained by treatment of a solution of sodium thiosulfate in the specified camera diaphragm electrolyzer.

 

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