RU2417000C1 - Method for production of plum compote - Google Patents

Abstract

FIELD: food industry.

SUBSTANCE: method provides for recipe ingredients preparation, cutting dandelion roots, drying them in microwave field at preset process parametres, roasting and milling, acorns frying and milling, mixing of dandelion roots and acorns, extraction of the obtained mixture by drinking water at preset process parametres, obtained extract filtering, preparation of a syrup on its basis, packing of plums and syrup, sealing and sterilisation.

EFFECT: method allows to reduce boiled fruits content in the finished product and extend its storage life.

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Description

The invention relates to the production technology of canned compotes.

There is a method of producing stewed fruit from plums, which involves 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 produce the corresponding extract, decaffeinating it, preparing syrup based on it, packing plums and syrup, sealing and pasteurizing (Ioitko V.M., Zaitseva A.L., Zaitsev 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". 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 tinge 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 reduce the content in the target product of boiled fruits and increase its shelf life.

This result is achieved by the fact that in the method of producing compote from plums, which involves preparing the recipe components, preparing syrup on the extract, packing the plums 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, prepared acorns are fried and crushed, mixed to dandelion deer and acorns in a weight ratio of 1: 1, 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 dry substances of 28-49%, and heat treatment is carried out by sterilization.

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 the simultaneous removal of seeds.

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 acorns are fried according to traditional technology (Nakhmedov F.G. Technology of coffee products. - M .: Light and food industry, 1984, p. 58-73), crushed and mixed in a ratio by weight of 1: 1. 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 the syrup is cooked with a solids content of 28 to 49% 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 when canning halves of the Tuleu gras 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.

Organoleptic and consumer properties of compotes Indicator The control Reference Experience The number of fruits with cracked pulp,% 38 26 23 Fruit color natural with a brownish tint with a brownish tint Taste and smell pronounced, characteristic for plums 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, month 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 of producing 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 dandelion root is cut, dried in the microwave field to a residual moisture content of about 20% with a microwave field power that provides heating the dandelion root to a temperature inside the pieces of 80-90 ° C, for at least 1 hour, fry and grind, prepared acorns are fried and chopped, mix the dandelion root and acorns in the ratio of mass of 1: 1, the resulting mixture is extracted with drinking water at a phase ratio of 1: (6-7) and periodic pressure relief in the extraction mixture until water boils, the corresponding extract is separated and filtered, the syrup is prepared with a solids content of 28-49%, and heat treatment is carried out by sterilization.