RU2417025C1 - Method for production of plum compote - Google Patents

Abstract

FIELD: food industry.

SUBSTANCE: invention is aimed at using in canning industry. The compote production method provides for recipe components preparation, dandelion roots and pomegranate peel cutting and drying in microwave field at preset process parametres, dandelion roots frying and milling, additional drying by conventional method and mincing pomegranate peel, mixing dandelion roots and pomegranate peel at a weight ratio of 7:3, obtained mixture extraction with drinking water at preset process parametres, obtained extract filtering, preparation of syrup based on it, packing of plums and syrup, sealing and sterilisation.

EFFECT: invention enables producing of compote with coffee flavour and aroma tones with no coffee content, simplification of technology and reduced content of boiled fruits in end product without reduce of product's storage time.

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. Technology of canning using coffee. // Collection of reports of the VI International Scientific and Practical Conference "Improving the Technologies and Equipment of Food Production". Part 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 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 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 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, the prepared pomegranate peel is cut, dried in the microwave field to residual humidity of about 20% with a microwave field power that provides heating of the pomegranate peel to a temperature inside the pieces of 80-90 ° C, for at least 1 hour, dried to a residual moisture content of about 5% by convective method and grind, mix dandelion root and pomegranate peel in the ratio by weight 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 containing dry substances 28-49%, and heat treatment is carried out to achieve commercial sterility.

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.

Prepared dandelion root and pomegranate peel are cut separately 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 each type of raw material for 1 hour and heating to a temperature inside pieces of 80 and 90 ° C. The microwave field power for each type of raw material is set to be 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 for each type of raw material is determined by the Harrington desirability function for the maximum yield of extractive substances with minimal specific energy consumption.

Then, the dandelion root is fried according to traditional technology and crushed, and the pomegranate peel is dried using the convective method to a residual moisture content of about 5% and crushed. The crushed dandelion root and pomegranate peel are mixed 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 22 to 29% 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 Food", 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 16 Fruit color Natural With a brownish tint With a brownish tint Taste and smell Well defined, characteristic for plums Well defined, with a coffee touch Well defined, with a coffee touch Fruit consistency Resilient Resilient Resilient The appearance of the syrup Transparent with separate suspended particles of pulp Transparent with separate suspended particles of pulp Transparent with separate suspended particles of pulp Shelf life, month eighteen 6 eighteen

Thus, the proposed method allows to obtain a compote with coffee shades of taste and aroma in the absence of coffee in the recipe, simplify the technology and reduce the content of boiled fruits in the target product without reducing its shelf life, as well as reduce the relative content of sucrose in the target product due to introduction into the composition extract of fructose, inulin and glucose, which allows us to recommend the product obtained according to the described technology for use in dietary nutrition for dysbiosis and diabetes.

Claims (1)

A method for producing 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 dandelion root and pomegranate peel are used to prepare the extract, while the prepared dandelion root is cut, dried in the field Microwave to a residual moisture content of about 20% with a microwave field power that ensures the dandelion root is heated to a temperature inside the pieces of 80-90 ° C, for at least 1 hour, fry and grind t, the prepared pomegranate peel is cut, dried in the microwave field to a residual moisture content of about 20% with a microwave field power that provides heating of the pomegranate peel to a temperature inside the pieces of 80-90 ° C for at least 1 hour, and dried to a residual moisture content of about 5% using a convective method and grind, mix dandelion root and pomegranate peel 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 it is filtered, syrup is prepared with a solids content of 28-49%, and the heat treatment is carried out to achieve commercial sterility.