RU2396029C1 - Method for complex processing of girasol-sunflower - Google Patents

Abstract

FIELD: food industry.

SUBSTANCE: invention relates to technology for complex processing of vegetables, namely girasol-sunflower. Method of complex processing of girasol-sunflower providing washing it, milling it, processing in the field of microwaves to inactivation the native enzymes, extraction with acidified water until the pH of the mixture is 5-6.5 with a ratio of phases 1:1 and the temperature 55-65°C for 30-40 minutes, followed by separation of the extract and the meal, consistent transmission of the extract through membranes with a threshold retention of 6-8 kDa and 0.8-2 kDa with low-molecular fraction returning to the stage of extraction, concentrating of the remaining fractions by reverse osmosis to the solid content of at least 15%, combining of high-molecular fraction concentrate with the meal obtaining gelating concentrate photo-sterilisation and packing in aseptic conditions of the remaining concentrate, which is a solution containing inulin, purified from accompanying substances.

EFFECT: method enables to implement complex processing of girasol-sunflower with complete recycling of nutrient and bioactive substances.

Description

The invention relates to the technology of integrated processing of vegetables.

It is known from the prior art that the use of sunflower as a forage crop and the indication that root crops of sunflower can be used by analogy with Jerusalem artichoke (Kshnikatkina A.N. cultivation and use. ”Issue 1. - Novosibirsk: APF“ ARIS ”, 1998, pp. 23-34).

However, information on the use of sunflower for integrated industrial processing is not known from the prior art.

The technical result of the invention is the provision of integrated processing of sunflower with obtaining as target products a gelling concentrate and an inulin-containing solution with the complete utilization of nutrient and biologically active substances of the feedstock.

This result is achieved by the fact that the method of complex processing of sunflower seeds involves washing the sunflower seeds, grinding it, processing in the microwave field to inactivate native enzymes, extraction with acidified water at a phase ratio of 1: 1, pH 5-6.5 and a temperature of 55-65 ° C for 30-40 minutes, followed by separation of the extract and meal, sequential passage of the extract through membranes with a retention threshold of 6-8 kDa and 0.8-2 kDa with the return of the low molecular weight fraction to the extraction stage, concentration of the remaining fractions osmosis to a solids content of at least 15%, combining a high molecular weight fraction concentrate with meal to produce a gelling concentrate, photo sterilization and packing under aseptic conditions of the remaining concentrate to obtain an inulin-containing solution.

The method is implemented as follows.

The sunflower is washed, inspected and ground, for example, on a crusher to a particle size of 1-2 mm. The ground mass is processed in the microwave field until the native enzymes are inactivated under processing conditions calculated according to known dependencies (Dzharullaev D.S. Scientific and technical principles for creating intensive technologies for processing fruit and berry raw materials using an ultra-high frequency electromagnetic field. Abstract of thesis. N. - Krasnodar: Dagestan branch of the scientific-technological technological center “Synthesis” ATN RF, 2005, p.12-13), pour acidified water until the pH of the extraction mixture reaches 5-6.5 at a phase ratio 1: 1, extracted at a temperature of 55-65 ° C for 30-40 minutes and the phases are separated by any known technology.

The separated extract is subjected to molecular separation by sequential passage through membranes with a retention threshold of 6-8 kDa and 0.8-2 kDa. The low molecular weight fraction separated in the last step is returned to the extraction step. The remaining fractions are concentrated by reverse osmosis to a solids content of at least 15%. The high molecular weight fraction concentrate containing protein and pectin substances is combined with meal to obtain a gelling concentrate. The remaining concentrate, which is an inulin-containing solution purified from concomitant substances, is subjected to photo sterilization and packaged under aseptic conditions.

The recirculation of the low molecular weight fraction of extractives realized in the proposed method leads to saturation of the extractant with soluble salts of organic and inorganic acids, mono-, di- and trisaccharides and polyphenol substances, which, after extraction, remain in the meal, and the return of protein and soluble pectin substances to it in the form of a concentrate of a high molecular weight fraction of extractive substances, it provides the desired product with gelling properties.

Thus, the proposed method allows for the integrated processing of sunflower with obtaining as the target products an inulin-containing solution for use in food or medical purposes and a gelling concentrate enriched with biologically active substances with complete utilization of the latter.

Claims (1)

A method of complex processing of sunflower, which includes washing of sunflower, grinding it, processing in the microwave field to inactivate native enzymes, extracting with acidified water until the mixture reaches pH 5-6.5 at a phase ratio of 1: 1, and a temperature of 55-65 ° C for 30 -40 min followed by separation of the extract and meal, sequential passage of the extract through membranes with a retention threshold of 6-8 kDa and 0.8-2 kDa with the return of the low molecular weight fraction to the extraction stage, concentration of the remaining fractions by reverse osmosis to solids content of not less than 15%, combining a high molecular weight fraction concentrate with meal to obtain a gelling concentrate, photo sterilization and packing under aseptic conditions of the remaining concentrate, which is an inulin-containing solution purified from accompanying substances.