CN113796508A

CN113796508A - Medlar deep-processing product and preparation method and application thereof

Info

Publication number: CN113796508A
Application number: CN202011582413.7A
Authority: CN
Inventors: 邱绚波
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-12-17

Abstract

The invention discloses a deep-processed product of medlar, which comprises the following raw materials in parts by weight: 100 parts of dried medlar, 0.22-0.55 part of flavoring agent, 0.5-2 parts of honey, 5-10 parts of fruit juice, 10-15 parts of purified water, 0.2-0.5 part of vegetable oil and 5-10 parts of vegetable fruit powder. The preparation process comprises the following steps: weighing, dissolving, infiltrating, drying and the like; the method has the advantages that the medlar is deeply processed, the flavor and the taste of the dried medlar are improved, the nutritional value and the market value are improved, the medlar is prepared into chocolate medlar, popular elements are added into the medlar, and the market potential of the medlar is developed.

Description

Medlar deep-processing product and preparation method and application thereof

Technical Field

The invention relates to the technical field of food processing, in particular to a deep-processed product of medlar and a preparation method and application thereof.

Background

The medlar contains rich nutrient substances and physiological active substances, mainly comprises medlar polysaccharide, betaine, sterol, taurine, beta-carotene, lutein, zeaxanthin, gamma-linolenic acid, various vitamins and a plurality of trace elements, and has the physiological effects of enhancing immunity, resisting aging, inhibiting cancer cells, reducing blood fat, nourishing yin, tonifying kidney, protecting liver, improving eyesight and the like.

The majority of the medlar on the market is sold in the form of dried medlar, and the taste of the dried medlar eaten directly is not accepted by part of potential customers. The problem that farmers are difficult to sell fruits is outstanding, so that the research and development and production intensity of deep-processed wolfberry products is continuously increased, the added value of wolfberry products is improved, and the method has positive significance for solving the problem that farmers are difficult to sell fruits, helping enterprises to go out of predicament and making the Ningxia wolfberry industry do a great job.

Therefore, how to provide a deep-processed product of medlar with rich nutrition value and large market potential is a technical problem which needs to be solved urgently by technical personnel in the field.

Disclosure of Invention

In view of the above, the invention provides a deep-processed product of medlar, and a preparation method and application thereof, wherein medlar is deep-processed, so that the flavor and taste of dried medlar are improved, and the nutritional value and market value are improved.

In order to achieve the purpose, the invention adopts the following technical scheme:

a deep-processed product of medlar comprises the following raw materials in parts by weight: 100 parts of dried medlar, 0.22-0.55 part of flavoring agent, 0.5-2 parts of honey, 5-10 parts of fruit juice, 10-15 parts of purified water, 0.2-0.5 part of vegetable oil and 5-10 parts of vegetable fruit powder.

The technical effect achieved by the technical scheme is as follows: the flavoring agent is used for adjusting the flavor of the dried medlar, such as pH value, sweetness and the like, and improving the taste of the dried medlar; the honey has outstanding sweet taste, can replace sucrose, has rich nutrition, balances the sour taste of the juice and the added flavoring agent, and improves the taste of the dried Chinese wolfberry; the plant fruit powder can wrap the medlar product after the formula ingredients are stood, isolate medlar granules and prevent the product from bonding and adhesion; the vegetable oil prevents the Chinese wolfberry particles from being mutually bonded and adhered when the Chinese wolfberry dried fruits are infiltrated, and simultaneously has certain nutrient substances; the substances are prepared into solution and mixed with the dried medlar, so that the nutritive value of the dried medlar can be improved, the taste of the dried medlar can be improved, and the medlar can get rid of a single product form.

According to a preferable technical scheme of the invention, the flavoring agent comprises 0.02-0.05 part of sweetening agent and 0.2-0.5 part of sour agent.

The technical effect achieved by the technical scheme is as follows: the sweetener and the sour agent are mutually blended, so that the flavor of the dried medlar is improved.

As a preferred embodiment of the present invention, the sweetener comprises: any one of sucralose and sucralose; the sour agent comprises any one of citric acid or malic acid.

The technical effect achieved by the technical scheme is as follows: the taste of the sucralose or sucralose is close to that of the sucrose, a very good sugar-acid ratio can be formed in the formula, and the sour taste of the fruit juice and the added citric acid and malic acid is balanced; the citric acid or the malic acid is used for forming a palatable sweet and sour feeling in the sugar-acid ratio of the formula ingredients, and meanwhile, the citric acid and the malic acid have an antioxidant effect, so that the dried Chinese wolfberry fruits can be prevented from being oxidized in the later processing process, and the quality of the deep-processed Chinese wolfberry products is ensured.

As a preferred technical solution of the present invention, the plant fruit powder comprises: glucose powder.

A method for preparing a deep-processed product of Chinese wolfberry comprises the following steps:

1) purifying: taking the dried medlar, and purifying for later use;

2) weighing: weighing the raw materials according to the weight part ratio for later use;

3) dissolving: adding sweetener, fruit juice, honey, sour agent and vegetable oil into purified water according to a certain proportion, stirring, and dissolving to obtain a solution;

4) material infiltration: adding the solution obtained in the step 3) into the purified dried medlar fruits obtained in the step 1), stirring, pouring into a container for spreading, covering sterilization gauze on the surface, sealing and standing to obtain a material;

5) particle isolation: adding plant fruit powder into the materials, mixing in a food mixer to uniformly wrap the plant fruit powder on the medlar materials, and screening the redundant plant fruit powder by a 40-mesh screen to obtain an isolation material; wherein the mass ratio of the materials to the plant fruit powder is 1: 0.05;

6) drying and sterilizing: drying and sterilizing the isolated material obtained in the step 5) to obtain a deep-processed product of the medlar.

The technical effect achieved by the technical scheme is as follows: the medlar has stronger water absorption, and forms very obvious bonding and adhesion phenomena after absorbing water, certain vegetable oil is added in the ingredients firstly to play a better role in isolating particles, the seeping material is more uniform after natural standing, the material is soft, after the seeping material is finished, the vegetable fruit powder can play a very good role in isolating particles, the free-running property is good, the redundant vegetable fruit powder can be screened out by sieving, and the redundant vegetable fruit powder can be dried, recovered and reused; the container is a food-grade acid and alkali resistant container which is used for containing the medlar wine and can better prevent other substances such as heavy metal and the like in the container from being dissolved and permeating into the medlar wine; the product has sweet and sour taste, softness and fineness by drying and sterilizing under certain conditions, completely retains nutrient substances and active substances in the medlar, and lays a morphological foundation for further processing of chocolate coating and the like in the next step.

As a preferred embodiment of the present invention, in step 1), the purification is: and (3) carrying out electrostatic hair separation, ozone sterilization and drying treatment on the dried wolfberry fruits to obtain purified dried wolfberry fruits.

The technical effect achieved by the technical scheme is as follows: the electrostatic hair separation can remove impurities such as hair and fine metal on the surface of the medlar, ensure the product quality, sterilize and kill harmful microorganisms on the surface of the medlar, and dry medlar can prevent adhesion of dry medlar fruits and avoid cell wall breakage.

As a preferable technical scheme of the invention, in the step 4), the height of the paving material is less than or equal to 0.5m, and the standing time is more than or equal to 12 hours in summer and more than or equal to 24 hours in winter.

The technical effect achieved by the technical scheme is as follows: the height of the spreading material is less than or equal to 0.5m, so that mutual extrusion deformation and bonding among particles caused by gravity among materials can be well prevented.

As a preferable technical scheme of the invention, in the step 6), the drying is carried out for 2-5 hours at the temperature of 60-65 ℃; the sterilization is hot air drying combined with ozone sterilization.

The application of the deep-processed product of medlar obtained by the preparation method in preparing chocolate medlar.

As a preferred technical solution of the present invention, the application specifically is: and (3) carrying out chocolate coating on the surface of the wolfberry deep-processed product, or pressing the wolfberry deep-processed product into the sliced chocolate to obtain the chocolate wolfberry.

The technical effect achieved by the technical scheme is as follows: the chocolate is coated on the surface of the deeply processed dried Chinese wolfberry fruits, and popular elements and chocolate nutrient substances are added, so that the flavor of the Chinese wolfberry is further improved, and the Chinese wolfberry fruit pulp is suitable for people of all ages.

In conclusion, the invention achieves the technical effects that:

the invention provides a deep-processed product of medlar, which improves the flavor and taste of dried medlar by deep processing the dried medlar, effectively overcomes the phenomenon of poor taste of the dried medlar when directly eaten, and ensures that the medlar product is more easily accepted by the public;

moreover, the chocolate medlar is prepared by using the medlar deep-processing product, so that the client group is expanded, the development direction of the medlar deep-processing product is met, the medlar additional value is improved, and the prepared chocolate medlar has the characteristics of no sucrose, proper sour and sweet taste, rich nutrition, prominent popular colors, suitability for both children and adults and industrial production.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

A deep-processed product of Chinese wolfberry comprises the following raw materials in parts by weight: 100 parts of purified medlar dry fruit, 0.02 part of sucralose, 5 parts of apple juice, 1 part of honey, 0.2 part of citric acid, 10 parts of purified water, 0.2 part of palm oil and 5 parts of glucose powder.

Preparing the deep processed product of the medlar: the process is as follows:

1) purifying: taking dry Chinese wolfberry fruits, and sequentially performing electrostatic hair separation, ozone sterilization and drying treatment on the dry Chinese wolfberry fruits to obtain purified dry Chinese wolfberry fruits for later use;

3) dissolving: adding the sucralose, the apple juice, the honey, the citric acid and the palm oil obtained in the step 2) into purified water according to the proportion, stirring and dissolving to obtain a solution;

4) material infiltration: adding the solution obtained in the step 3) into the purified dried medlar fruits obtained in the step 1), stirring, pouring into a container for paving, wherein the height of the paving is 0.5m, covering sterilization gauze on the surface, sealing and standing for 12 hours to obtain a material;

5) particle isolation: adding glucose powder into the materials, mixing in a food mixer to make the glucose powder uniformly wrap the medlar materials, and screening the surplus glucose powder by a 40-mesh screen to obtain an isolation material; wherein the mass ratio of the materials to the glucose powder is 1: 0.05;

6) drying and sterilizing: drying the isolated material obtained in the step 5) at 60 ℃ for 2h, and sterilizing with ozone to obtain a deep-processed product of the medlar

Example 2

A deep-processed product of Chinese wolfberry comprises the following raw materials in parts by weight: 100 parts of purified medlar dry fruit, 0.03 part of sucralose, 7 parts of apple juice, 0.5 part of honey, 0.5 part of malic acid, 12 parts of purified water, 0.5 part of olive oil and 5 parts of glucose powder.

Preparing the deep processed product of the medlar: the process is as follows:

3) dissolving: adding the sucralose obtained in the step 2), apple juice, honey, malic acid and olive oil into purified water according to a ratio, stirring and dissolving to obtain a solution;

4) material infiltration: adding the solution obtained in the step 3) into the purified dried medlar fruits obtained in the step 1), stirring, pouring into a container for paving, wherein the height of the paving is 0.4m, covering a sterilized gauze on the surface, sealing, and standing for 24 hours to obtain a material;

6) drying and sterilizing: drying the isolated material obtained in the step 5) at 65 ℃ for 5 hours, and sterilizing with ozone to obtain a deep-processed product of the medlar

Example 3

A deep-processed product of Chinese wolfberry comprises the following raw materials in parts by weight: 100 parts of purified medlar dry fruit, 0.05 part of sucralose, 10 parts of pear juice, 2 parts of honey, 0.3 part of citric acid, 15 parts of purified water, 0.3 part of olive oil and 7 parts of glucose powder.

Preparing the deep processed product of the medlar: the process is as follows:

3) dissolving: adding the sucralose obtained in the step 2), pear juice, honey, citric acid and olive oil into purified water according to a ratio, stirring and dissolving to obtain a solution;

4) material infiltration: adding the solution obtained in the step 3) into the purified dried medlar fruits obtained in the step 1), stirring, pouring into a container for paving, wherein the height of the paving is 0.35m, covering sterilization gauze on the surface, sealing and standing for 12 hours to obtain a material;

6) drying and sterilizing: drying the isolated material obtained in the step 5) at 62 ℃ for 3h, and sterilizing with ozone to obtain a deep-processed product of the medlar

Example 4

A deep-processed product of Chinese wolfberry comprises the following raw materials in parts by weight: 100 parts of purified medlar dry fruit, 0.05 part of sucralose, 10 parts of strawberry juice, 2 parts of honey, 0.5 part of citric acid, 15 parts of purified water, 0.5 part of palm oil and 10 parts of glucose powder.

Preparing the deep processed product of the medlar: the process is as follows:

3) dissolving: adding the sucralose obtained in the step 2), the strawberry juice, the honey, the citric acid and the palm oil into purified water according to the proportion, stirring and dissolving to obtain a solution;

4) material infiltration: adding the solution obtained in the step 3) into the purified dried medlar fruits obtained in the step 1), stirring, pouring into a container for paving, wherein the height of the paving is 0.5m, covering a sterilized gauze on the surface, sealing, and standing for 24 hours to obtain a material;

5) particle isolation: adding glucose powder into the materials, mixing in a food mixer to make the glucose powder uniformly wrap the medlar materials, and screening the surplus glucose powder by a 40-mesh screen to obtain an isolation material; wherein the mass ratio of the materials to the glucose powder is 1: 0.1;

6) drying and sterilizing: drying the isolated material obtained in the step 5) at 65 ℃ for 5h, and carrying out ozone sterilization to obtain a deep-processed product of the medlar.

The deep processing product of the medlar prepared in the embodiment 4 is prepared into chocolate medlar by the following process: and (3) carrying out chocolate coating on the surface of the wolfberry deep-processed product, or pressing the wolfberry deep-processed product into the sliced chocolate to obtain the chocolate wolfberry.

Comparative example 1

Compared with the real-time example 1, the method has the advantages of different added raw material dosage and different technical parameters

(1) Purifying the dried medlar fruits for later use;

(2) dissolving and uniformly mixing 0.01 part of sucralose, 4 parts of apple juice, 0.5 part of honey, 0.1 part of malic acid citrate, 10 parts of purified water and 0.2 part of vegetable oil according to a ratio to obtain a liquid formula material;

(3) adding 100 parts of purified dried Chinese wolfberry into the feed liquid obtained in the step (2), uniformly mixing by using a food stirrer, then pouring into a food-grade stainless steel groove or other acid-and-alkali-resistant food containers, covering gauze subjected to cleaning and sterilization on the surface, covering the gauze with the material, sealing, standing, uniformly infiltrating substances added into the dried Chinese wolfberry at normal temperature, and standing for 20 hours;

(4) adding the material obtained in the step (3) and glucose powder according to the proportion of 1:0.05, fully stirring and uniformly mixing, and then sieving to remove redundant plant fruit powder;

(5) drying the medlar materials treated in the step (4) by using a medlar drying room or a fluidized bed, and simultaneously sterilizing by ozone, wherein the drying time is 2 hours at the temperature of 70 ℃, so that the moisture of the medlar materials is controlled within 20%;

(6) and (4) carrying out chocolate coating on the wolfberry materials treated in the step (5) to enable the surfaces of the wolfberry materials to be covered with a layer of uniform chocolate, so as to obtain chocolate wolfberry.

After tasting: the sour and sweet taste is light, the color of the medlar in the chocolate is dark, and the taste of the product is not rich.

Comparative example 2

Compared with the real-time example 1, the process is different (no vegetable oil is added)

(1) Purifying the dried medlar fruits for later use;

(2) dissolving and uniformly mixing 0.02 part of sucralose, 5 parts of apple juice, 1 part of honey, 0.2 part of malic acid citrate and 10 parts of purified water according to a proportion to obtain a liquid formula material;

through observation: the medlar can not be subjected to the next procedure after the medlar is seriously bonded and adhered

Comparative column 3

Different process compared with real-time example 1 (without glucose powder coating)

(1) Purifying the dried medlar fruits for later use;

(2) dissolving and uniformly mixing 0.02 part of sucralose, 5 parts of fruit juice, 1 part of honey, 0.2 part of malic acid citrate, 10 parts of purified water and 0.2 part of vegetable oil according to a ratio to obtain a liquid formula material;

(4) drying the medlar materials treated in the step (4) by using a medlar drying room or a fluidized bed, and simultaneously sterilizing by ozone, wherein the drying time is 2 hours at the temperature of 60 ℃, so that the moisture of the medlar materials is controlled within 20%;

through observation: the materials have certain fluidity but also have mutual adhesion, and the chocolate spraying and starching of the single wolfberry fruits cannot be carried out.

Comparative column 4

Compared with the real-time example 1, the process is different (the paving height of the materials is higher than 0.5 meter after the materials are mixed)

(1) Purifying the dried medlar fruits for later use;

(3) adding 100 parts of purified dried Chinese wolfberry into the feed liquid obtained in the step (2), uniformly mixing by using a food stirrer, then pouring into a food-grade stainless steel groove or other acid-base-resistant food containers, paving the materials to a height of 0.6 m, covering the surfaces of the materials with cleaned and sterilized gauze, covering the gauze with a cover, sealing, standing, uniformly infiltrating the materials of the dried Chinese wolfberry at normal temperature, and standing for infiltrating for 20 hours;

through observation: the material between 0.4 meter from top to bottom has good free-running property but the material between the lowest 0.2 meter has cohesiveness, and part of 2 or three medlar materials are closely adhered together. The bonded material cannot be subjected to the next process;

the test column comprises the following process rationality and product sensory evaluation: the rationality of the process is directly evaluated by technicians, the scoring results of the process and the rationality evaluation are shown in table 1, the rationality is fully divided into 10 points, and the unreasonable rationality is directly 0. Taste evaluation is carried out by high-traffic and technical personnel, workshop workers and random personnel in the Chinese wolfberry industry in Zhongning county, wherein the part of the Chinese wolfberry industry in Zhongning county is invited by research and development personnel, the total number of the people is 50, and the age of the people is between 10 and 60 years. The average value of each score was regarded as sensory evaluation score, 10 points were full, the evaluation criteria are shown in table 2, and the sensory evaluation score results are shown in table 3.

TABLE 1 rationality of the process formulation

Test of	Process rationality	Scoring
			Example 1	Reasonable and reasonable	10
Example 2	Reasonable and reasonable	10
			Example 3	Reasonable and reasonable	10
Example 4	Reasonable and reasonable	10
			Comparative example 1	Is unreasonable	0
Comparative example 2	Is unreasonable	0
			Comparative column 3	Is unreasonable	0
Comparative column 4	Is unreasonable	0

TABLE 2 sensory evaluation criteria

Table 3 sensory evaluation results of examples

Test of	Design of the design	Product flavor	Overall mouthfeel	Evaluation score
					Example 1	9.5	9.2	9.5	9.4
Example 2	9.5	9.3	9.4	9.4
					Example 3	9.5	9.4	9.6	9.5
Example 4	9.5	9.7	9.6	9.6

The results in Table 3 show that the chocolate-processed Lycium barbarum obtained in examples 1-4 is more acceptable to the market in appearance design, product flavor, and overall mouthfeel. Meanwhile, the formulation design of the example 4 is optimal in taste.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A deep-processed product of medlar is characterized by comprising the following raw materials in parts by weight: 100 parts of dried medlar, 0.22-0.55 part of flavoring agent, 0.5-2 parts of honey, 5-10 parts of fruit juice, 10-15 parts of purified water, 0.2-0.5 part of vegetable oil and 5-10 parts of vegetable fruit powder.

2. The deep-processed product of wolfberry fruit as claimed in claim 1, wherein the flavoring agent comprises 0.02-0.05 part of sweetening agent and 0.2-0.5 part of sour agent.

3. The further processed product of lycium barbarum of claim 2, wherein said sweetener is selected from sucralose or sucralose;

the sour agent is selected from citric acid or malic acid.

4. The deep-processed product of lycium barbarum as claimed in claim 1, wherein the plant fruit powder is glucose powder;

the vegetable oil is selected from olive oil or palm oil.

5. The method for preparing the deep-processed product of Chinese wolfberry according to any one of claims 1 to 4, comprising the following steps:

1) purifying: taking the dried medlar, and purifying for later use;

3) dissolving: adding sweetener, fruit juice, honey, sour agent and vegetable oil into purified water according to a certain proportion, stirring, and dissolving to obtain a solution; speed and time of agitation

4) Material infiltration: adding the solution into the purified dried fructus Lycii, stirring, pouring into a container, spreading, covering with sterilized gauze, sealing, and standing to obtain material; stirring speed, stirring time

6) drying and sterilizing: drying and sterilizing the isolated material.

6. The method for preparing the deep-processed product of wolfberry of claim 5, wherein in step 1), the purification is: and (3) carrying out electrostatic hair separation, ozone sterilization and drying treatment on the dried wolfberry fruits to obtain purified dried wolfberry fruits.

7. The method for preparing the deep-processed product of medlar according to claim 5, wherein in the step 4), the height of the paving material is less than or equal to 0.5 m; the standing time is more than or equal to 12 hours in summer and more than or equal to 24 hours in winter.

8. The method for preparing the deep-processed product of Chinese wolfberry according to claim 5, wherein in the step 6), the drying temperature is 60-65 ℃ and the drying time is 2-5 h; the sterilization is ozone sterilization.

9. A process for the preparation of chocolate wolfberry, characterised in that chocolate wolfberry is prepared starting from a wolfberry further processed product prepared according to any of the preceding claims 6 to 8.

10. The method for preparing chocolate medlar according to claim 9, wherein chocolate medlar is obtained by coating chocolate on the surface of the medlar deep-processed product or pressing the medlar deep-processed product into sliced chocolate.