RU2411761C1 - Method for production of apricot compote - Google Patents

Abstract

FIELD: food industry. ^ SUBSTANCE: invention relates to technology of canned compotes manufacturing. Method provides for recipe components preparation, cutting oyster plant, drying it in microwave field as preset process parametres, frying and cryomilling in liquid nitrogen, frying rye grains. Oyster plant and rye grains are mixed in mass ratio 7:3. Obtained mixture is extracted by drinking water at preset process parametres. Filtering of produced extract, making syrup on its basis, packing of apricots and syrup, sealing and sterilisation. ^ EFFECT: method allows to produce compote with coffee flavour and aroma tones with no coffee content, simplification of technology and reduced content of boiled fruits in end product. ^ 1 tbl

Description

The invention relates to the production technology of canned compotes.

There is a method of producing stewed apricots, which involves preparing prescription ingredients, preparing sugar syrup with 31-43.5% solids on water, packing apricots and syrup, sealing and sterilizing (Collection of technological instructions for the production of canned food. Volume II. Part 2 - M .: APPP "Canned Fruit", 1992, p. 75-162).

The disadvantage of this method is the content in the target product of a large number of boiled fruits.

Closest to the proposed one is a method of producing compote from apricots, which involves preparing the recipe components, roasting and extracting coffee to obtain the corresponding extract, decaffeinating it, preparing syrup based on it, packing apricots and syrup, sealing and pasteurizing (V. Izoitko, Zaitseva A.L., Zaytsev M.V. Preservation technology using coffee // Collection of reports of the VI International Scientific and Practical Conference "Improving Food Processing Technologies and Equipment TV ". Part 1 - Мn .: Nesvizh large-sized printing house named after S. Budny, 2007, p. 260-263).

This method allows you to get compote with a specific coffee shade of taste and aroma and slightly reduce the content of boiled fruits in the target product by replacing sterilization with pasteurization, but has a sophisticated technology due to the need for decaffeination of the extract and a reduced shelf life of the target product.

The technical result of the invention is to obtain compote with a specific coffee tinge of taste and aroma in the absence of coffee in the recipe, simplifying the technology and reducing the content of boiled fruits in the target product without reducing its shelf life.

This result is achieved by the fact that in the method of producing compote from apricots, which involves preparing the recipe components, preparing syrup on the extract, packing apricots and syrup, sealing and heat treatment, according to the invention, the prepared oat root is cut, dried in the microwave field to a residual moisture content of about 20% at a microwave field power that provides heating of the oat root to a temperature inside the pieces of 80-90 ° C for at least 1 hour, fry and grind, the prepared rye grain is fried, the oatmeal is mixed rye root and rye grain in a weight ratio of 7: 3, extract the resulting mixture with drinking water at a phase ratio of 1: (6-7) and periodically depressurize the extraction mixture until water boils, separate the corresponding extract and filter it, the syrup is prepared with the content solids 31-43.5%, and heat treatment is carried out until industrial sterility is achieved.

The method is implemented as follows.

Prescription components are prepared according to traditional technology. Apricot preparation, depending on the type of compote being prepared, may include, in addition to inspection and washing, cutting and pitting.

The prepared oat root is cut and dried in the microwave field to a residual moisture content of about 20% for at least 1 hour. Moreover, according to well-known dependencies (Gubiev Yu.K. Scientific and practical fundamentals of thermotechnological processes of food production in the microwave electromagnetic field, Abstract of thesis, Doctor of Technical Sciences - M .: MTIPP, 1990, pp. 7-11), the power values are calculated microwave fields, allowing to provide an oat root drying time of 1 hour and heating to a temperature inside pieces of 80 and 90 ° С. The power of the microwave field is set greater than or equal to the second value and less than or equal to the smaller of the first and third values of the calculated powers.

Drying in the microwave field at temperatures above 90 ° C leads to premature caramelization of sugars. Drying in the microwave field at a temperature below 80 ° C and a reduction in drying time of less than 1 hour lead to a reduction in the yield of extractives. Since an increase in the drying time automatically leads to an increase in the specific energy consumption, the maximum value of the drying time is determined by the Harrington desirability function for the maximum yield of extractives with the minimum specific energy consumption.

Then the oat root and rye grain are fried using traditional technology. The oat root is crushed and mixed with rye grain in a weight ratio of 7: 3. The resulting mixture is poured with drinking water at a phase ratio of 1: (6-7) and extracted with periodic depressurization of the extraction mixture until water boils at the recommended process parameters (RU 2255788 C1, 2005). After extraction is complete, the extract is separated from the meal and filtered by any known technique. Sugar is added to the obtained extract with a solids content of 18-19.5% and a syrup with a solids content of 31 to 43.5% is cooked in accordance with standard formulations using standard technology (Collection of technological instructions for the production of canned food. Volume II. Part 2 - M .: APPP "Konservlodozyot", 1992, p. 75-162).

Apricots and the resulting syrup are packaged, sealed and sterilized in the ratio of components and sterilization modes in accordance with standard technology.

An experimental check was carried out when canning halves of apricots Big Late with a solids content of 12% in glass jars with a capacity of 1 dm ³ . The canning was carried out according to standard technology (control), according to the closest analogue (standard) and by the proposed method (experience). The results of the experimental verification are summarized in table.

Table Organoleptic and consumer properties of compotes Indicator The control Reference Experience The number of fruits with cracked pulp,% 46 21 fifteen Fruit color natural with a brownish tint with a brownish tint Taste and smell well expressed, characteristic for apricots well defined, with a coffee touch well defined, with a coffee touch Fruit consistency elastic elastic elastic The appearance of the syrup transparent with separate suspended pulp particles transparent with separate suspended pulp particles transparent with separate suspended pulp particles Shelf life, months 24 6 24

Thus, the proposed method allows to obtain compote with coffee shades of taste and aroma in the absence of coffee in the recipe, to simplify the technology and reduce the content of boiled fruits in the target product without reducing its shelf life.

Claims (1)

A method of producing a canned compote from apricots, which involves preparing the recipe components, preparing syrup on the extract, packing apricots and syrup, sealing and heat treatment, characterized in that the prepared oat root is cut, dried in the microwave field to a residual moisture content of about 20% with a microwave field power, heating the oat root to a temperature inside the slices of 80-90 ° C for at least 1 hour, fry and grind, the prepared rye grain is fried, the oat root and rye grain are mixed in with a mass ratio of 7: 3, the resulting mixture is extracted with drinking water at a phase ratio of 1: (6-7) and periodically depressurizing the extraction mixture until water boils, the corresponding extract is separated and filtered, the syrup is prepared with a solids content of 31-43, 5%, and heat treatment is carried out until industrial sterility is achieved.