RU2380977C1 - Integrated processing method of girasol-sunflower - Google Patents

Abstract

FIELD: food industry.

SUBSTANCE: method involves washing girasol-sunflower, chopping it, pouring it with acidified water, treating it in microwave field until native enzymes are inactivated, extracting it at preset process parametres, sequential passing the extract through membranes with threshold of retaining of 6-8 kDa and 0.8-2 kDa with return of low-molecular fraction to the extraction stage, concentrating of the remained fractions by means of reverse osmosis, uniting the low-molecular concentrate with ground oil-cake to obtain gelatinising concentrate, photosterilising and packaging of the remained concentrate in aseptic conditions to obtain inulin-containing solution.

EFFECT: method enables to perform integrated processing of girasol-sunflower with complete utilisation of nutritional and biologically active 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. Some issues of agricultural technology of Jerusalem artichoke and sunflower // Proceedings "Innovative technologies and products: Jerusalem artichoke and sunflower - problems cultivation and use. "Issue 1. - Novosibirsk: APF" ARIS ", 1998, p.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, pouring with acidified water at a phase ratio of 1: 1 and pH 5-6.5, processing in the microwave field until the inactivation of native enzymes, extraction at 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 RAC reverse osmosis to a solids content of at least 15%, combining the concentrate with the high molecular weight fraction to obtain gelling Schrott concentrate fotosterilizatsiyu and packing under aseptic conditions to obtain the remaining concentrate inulinsoderzhaschego 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 crushed mass is poured with acidified water until the extraction mixture reaches a pH of 5-6.5 with a phase ratio of 1: 1, it is processed in the microwave field until the native enzymes are inactivated at the recommended process parameters (Gubiev Yu.K. Scientific and practical fundamentals of thermotechnological processes of food production in electromagnetic microwave field, Abstract of a dissertation of a doctor of technical sciences - M .: MTIPP, 1990, p.32-33), 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, including washing of sunflower, crushing it, pouring it with acidified water at a phase ratio of 1: 1 and a pH of 5-6.5, processing in a microwave field until inactivation of native enzymes, extraction at 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 dry content x substances not less than 15%, combining the concentrate with the high molecular weight fraction to obtain gelling Schrott concentrate fotosterilizatsiyu and packing under aseptic conditions to obtain the remaining concentrate inulinsoderzhaschego solution.