RU2411823C1 - Method for production of raspberry compote - Google Patents

Abstract

FIELD: food industry.

SUBSTANCE: invention relates to technology of canned compotes manufacturing. Method provides for recipe components preparation, dandelion root cutting, drying in microwave field at preset process parametres, frying and milling, rye grain frying, mixing of dandelion root and rye grain in mass ratio 7:3, obtained mixture extraction by drinking water at preset process parametres, obtained extract filtering, preparation of syrup based on it, packing of raspberry and syrup, sealing and sterilisation.

EFFECT: method makes it possible to produce compote with coffee flavours with no coffee added to the formula, to simplify technology and reduce content of overcooked berries in finished product without reduction in its shelf life.

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Description

The invention relates to the production technology of canned compotes.

A known method of producing compote from raspberries, involving the preparation of prescription components, the preparation of water sugar syrup with a solids content of 37.5-41%, packing raspberries and syrup, sealing and sterilization (Collection of technological instructions for the production of canned food. Volume II. Part 2. - M .: APPP "Konservlodozyot", 1992, p. 75-162).

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

Closest to the proposed method is the production of raspberry compote, which involves preparing the recipe components, roasting and extracting coffee to produce the corresponding extract, decaffeinating it, preparing syrup based on it, packing raspberries and syrup, sealing and pasteurizing (Ioitko V.M., Zaitseva A.L., Zaytsev M.V. Preservation technology using coffee // Collection of reports of the VI International Scientific and Practical Conference "Improving the Technologies and Equipment of Food Production." be 1. - Mn .: Nesvizhskaya im.S.Budnogo Integrated Printing House, 2007 s.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 berries 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 tint of taste and aroma in the absence of coffee in the recipe, simplifying the technology and reducing the content of boiled berries in the target product without reducing its shelf life.

This result is achieved by the fact that in the method of making raspberry compote, which involves preparing the recipe components, preparing syrup on the extract, packing raspberries and syrup, sealing and heat treatment, according to the invention, the prepared dandelion root is cut, dried in the microwave field to a residual moisture content of about 20% at power of the microwave field, providing heating of the dandelion 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 root is mixed dandelion and rye grain in a weight ratio of 7: 3, extract the mixture with drinking water at a phase ratio of 1: (6-7) and periodically depressurize the extraction mixture until the water boils, separate the corresponding extract and filter it, prepare the syrup with dry substances 37.5-41%, 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.

The prepared dandelion 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 YK Scientific and practical principles of thermotechnological processes of food production in the electromagnetic field of the microwave. Abstract of the dissertation of the doctor of technical sciences - M .: MTIPP, 1990, pp. 7-11) calculate the power microwave fields, allowing to provide a drying time of dandelion root for 1 hour and warming to a temperature inside pieces of 80 and 90 ° C. 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 dandelion root and rye grain are fried using traditional technology. Dandelion 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 37.5 to 41% 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 "Conserved fruit", 1992, p. 75-162).

Raspberries and the resulting syrup are Packed, sealed and sterilized with a ratio of components and sterilization modes in accordance with standard technology.

An experimental check was carried out when preserving raspberries of the Progress variety with a solids content of 11% 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 boiled berries,% thirty 25 22 Berry color natural with a brownish tint with a brownish tint Taste and smell pronounced raspberry well defined, with a coffee touch well defined, with a coffee touch Berry consistency soft soft soft 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 eighteen 6 eighteen

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 berries in the target product without reducing its shelf life.

Claims (1)

A method of producing canned raspberry compote, which includes preparing the recipe components, preparing syrup on the extract, packing raspberries and syrup, sealing and heat treatment, characterized in that the extract is prepared as follows: the prepared dandelion root is cut, dried in the microwave field to a residual moisture content of about 20% when the microwave field power provides heating of the dandelion 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, extract dandelion 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, prepare syrup with solids content of 37.5-41%, and heat treatment is carried out until industrial sterility is achieved.