RU2381712C1 - Plum compote production method - Google Patents

Abstract

FIELD: food industry.

SUBSTANCE: invention relates to technologies of canned compotes manufacturing. Method provides for preparing the ingredients, cutting, drying in the microwave field at preset process parametres, roasting and milling chicory, roasting and milling acorns and nuts, roasting barley and oats grain, mixing the chicory with the barley and oats grain, acorns and nuts in the mass ratio 3:7:3:4:3, extracting the obtained mixture by drinking water at preset process parametres, filtering the obtained extract, preparing a syrup out of the extract, packing the plums and the syrup, sealing and sterilising.

EFFECT: method enables to produce compote with a coffee flavour and aroma tones without actual coffee content, simplify the technology and reduce content of boiled fruit in the target product without reducing the product shelf life.

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Description

The invention relates to the production technology of canned compotes.

A known method for the production of compote from plums, involving the preparation of prescription components, the preparation of water sugar syrup with a solids content of 28-49%, packing of plums and syrup, sealing and sterilization (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 method is the production of compote from plums, which involves preparing the recipe components, roasting and extracting coffee to obtain the corresponding extract, decaffeinating, preparing syrup based on it, packing plums and syrup, sealing and pasteurization (Ioitko V.M., Zaitseva AL, Zaitsev MV, Preservation technology using coffee // Collection of reports of the VI International Scientific and Practical Conference "Improving the Technologies and Equipment of Food Production". Hour 1 - Mn .: Nesvizh Integrated 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 tint 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 for producing compote from plums, which involves preparing the recipe components, preparing syrup on the extract, packing the plums and syrup, sealing and heat treating, according to the invention, the prepared chicory is cut, dried in the microwave field to a residual moisture content of about 20% at microwave field power, which ensures chicory heating to a temperature inside the pieces of 80-90 ° C, for at least 1 hour, is fried and ground, prepared acorns and nut kernels are fried and ground, prepared barley and oats are fried, chicory, barley, oats, acorns and kernels are mixed in a weight ratio of 3: 7: 3: 4: 3, the resulting mixture is extracted 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 a solids content of 28-49%, 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 preparation of plums, depending on the type of compote being prepared, may include, in addition to inspection and washing, cutting into halves with simultaneous removal of seeds.

Prepared chicory 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 Basics 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 values microwave field power, allowing to provide chicory drying time of 1 hour and heating to a temperature inside pieces of 80 and 90 ° C. The microwave field power 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 temperatures 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 extractive substances with minimal specific energy consumption.

Then chicory, barley grain, oats, acorns and kernels are fried using traditional technology. Chicory, acorns and kernels are chopped. Mix chicory, barley grain, oats, acorns and kernels in a ratio by weight of 3: 7: 3: 4: 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 28 to 49% 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 "Canned Fruit", 1992, p. 75-162).

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

An experimental check was carried out while preserving halves of the Tuleu Grae plums 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,% 38 26 25 Fruit color natural with brownish open with a brownish tint Taste and smell pronounced, characteristic for plums well defined, with a coffee touch well defined, with coffee open 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 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 fruits in the target product without reducing its shelf life.

Claims (1)

A method for the production of canned compote from plums, which involves preparing the recipe components, preparing syrup on the extract, packing the plums and syrup, sealing and heat treatment, characterized in that the prepared chicory is cut, dried in the microwave field to a residual moisture content of about 20% with a microwave field power providing warming chicory to a temperature inside the pieces of 80-90 ° C, for at least 1 hour, fry and grind, prepared acorns and kernels of nuts are fry and grind, the prepared grain of barley and oats o roasted, mixed chicory, barley grain, oat grain, acorns and walnuts in a ratio by weight of 3: 7: 3: 4: 3, extracted the mixture with drinking water at a phase ratio of 1: (6-7) and periodic pressure relief in the extraction mixtures before boiling water, separate the corresponding extract and filter it, the syrup is prepared with a solids content of 28-49%, and heat treatment is carried out until industrial sterility is achieved.