阅读说明：本技术 一种牛肉冷冻保鲜的预处理办法 (Pretreatment method for freezing and refreshing beef ) 是由 白树权 韩永苗 于 2019-10-22 设计创作，主要内容包括：本发明公开了一种牛肉冷冻保鲜的预处理办法,将牛肉从牛的身体下切下,随后将牛肉内部骨头剔除,取出完整骨头,随后将牛肉内部的肥肉、牛筋与牛肉主体进行分离,随后将处理好的牛肉进行切割成长宽高为10～15厘米的正方体块,随后将切割好的牛肉放置在0摄氏度～-5摄氏度的冰水中浸泡1-3个小时,随后将牛肉取出,放置在10-15摄氏度的环境下30～60分钟,将制作好的保鲜剂放置在清水中溶开,支撑药水,将所有切好的牛肉放置在药水中,并且手动将药水均匀的抹匀在牛肉的外表面进行浸泡,浸泡的环境温度为0-5摄氏度,浸泡的时间为5-10分钟,随后取出牛肉,沥干；有益效果：保存前在牛肉表面涂满牛油并进行冷冻,这样牛肉则能完全保存在牛油的里面进行保存时间会很长。(The invention discloses a pretreatment method for freezing and refreshing beef, which comprises the steps of cutting the beef from the lower part of a beef body, removing bones in the beef, taking out complete bones, separating fat meat and beef tendon in the beef from a beef main body, cutting the processed beef into square blocks with the length, width and height of 10-15 cm, soaking the cut beef in ice water at 0-minus 5 ℃ for 1-3 hours, taking out the beef, placing the beef in an environment at 10-15 ℃ for 30-60 minutes, dissolving the prepared preservative in clear water, supporting liquid medicine, placing all the cut beef in the liquid medicine, manually and uniformly smearing the liquid medicine on the outer surface of the beef for soaking at the environment temperature of 0-5 ℃ for 5-10 minutes, then taking out the beef and draining; has the advantages that: before preservation, beef is coated with beef tallow and frozen, so that the beef can be completely preserved in the beef tallow for a long time.)

1. A pretreatment method for freezing and refreshing beef is characterized by comprising the following steps:

1) cutting process

During cutting, cutting the beef from the lower part of the body of the beef, then removing the bones inside the beef, taking out the complete bones, then separating fat meat and beef tendon inside the beef from the beef main body, then cutting the processed beef into cube blocks with the length, width and height of 10-15 cm, then placing the cut beef in ice water at the temperature of 0-minus 5 ℃ for soaking for 1-3 hours, then taking out the beef, and placing the beef in an environment at the temperature of 10-15 ℃ for 30-60 minutes;

2) treatment before preservation

The placed preservative is placed in the preservative for preservation, and then the whole preservative is assembled in the gauze for use;

3) soaking

The prepared preservative is placed in clear water to be dissolved, liquid medicine is supported, all cut beef is placed in the liquid medicine, the liquid medicine is evenly smeared on the outer surface of the beef by hand to be soaked, the soaking environment temperature is 0-5 ℃, the soaking time is 5-10 minutes, and then the beef is taken out and drained;

4) freezing

Fixing four sides of the cube soaked and drained beef through eight separation nets, then freezing the beef blocks in an environment with the temperature of-20 to-30 ℃ for 10 to 12 hours, taking out the beef blocks after freezing, and separating the eight separation nets;

5) package (I)

The beef jerky is boiled into fat beef tallow, the boiled fat beef is evenly smeared on the surfaces of beef blocks and then stored, the frozen beef blocks completely wrapped by the beef tallow are placed in a gas bag for storage, the gas components in the gas bag are gas combination of 10% of oxygen, 70% of carbon dioxide and 20% of nitrogen, and then the beef jerky is placed in a refrigerated cabinet for storage.

2. The pretreatment method for freezing and refreshing beef according to claim 1, wherein the preservative comprises the following components:

chitosan, vitamin C complex, protamine, nisin, poly-lysine and lysozyme, and the proportion of the components is as follows: 0.1-0.2 part of chitosan, 0.1-0.2 part of vitamin C complex, 0.2-0.4 part of protamine, 0.2-0.4 part of nisin, 0.2-0.4 part of poly-lysine and 0.2-0.4 part of lysozyme;

during preparation, mixing and stirring chitosan, vitamin C complex, protamine, nisin, polylysine and lysozyme in proportion, and fermenting the stirred preservative for 20-22 hours;

and then placing the fermented preservative in an environment with the temperature of 0-5 ℃ for 1-2 hours.

3. The method as claimed in claim 1, wherein the shape of the holes of the screen is square holes with a width of 2-4 cm.

4. The pretreatment method for freezing and refreshing beef according to claim 1, wherein the temperature of the refrigerated cabinet is-2 to-5 ℃ during packaging.

5. The pretreatment method for freezing and refreshing beef according to claim 1, wherein the temperature of the environment for preserving beef coated with beef tallow is 0 ℃ to-10 ℃.

6. The method for pretreating frozen beef freshness in accordance with claim 1, wherein the beef in step 1) is cut by a cutting line.

Technical Field

The invention relates to the technical field of preservation, in particular to a pretreatment method for freezing preservation of beef.

Background

Fresh-keeping means keeping fresh, including preservation for storage, transportation, sale, and the like, and the preservation in the general sense means preservation of vegetables and fruits. The inherent nature of the fresh-keeping fruits and vegetables is the inherent nature of the fresh level, and the inherent nature of the variety is the internal cause. Various measures are taken to inhibit aging, and the measure for keeping freshness is the external cause. The quality and no damage of the fruits and vegetables are the basis for good preservation. The storage technology is an external factor, only some supplement and modification can be made on some biological characteristics of the fresh-keeping products, the storage life of a specific variety is limited no matter what advanced fresh-keeping technology is adopted, and the best storage effect can be obtained only by supplementing the production cultivation before the collection and the fresh-keeping technology after the collection.

The freezing preservation of the beef requires high requirements, and the preservation time of the common beef is short, so that the cost for preparing the beef is greatly increased.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

The invention aims to provide a pretreatment method for freezing and refreshing beef so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a pretreatment method for freezing and refreshing beef comprises the following steps:

1) cutting process

During cutting, cutting the beef from the lower part of the body of the beef, then removing the bones inside the beef, taking out the complete bones, then separating fat meat and beef tendon inside the beef from the beef main body, then cutting the processed beef into cube blocks with the length, width and height of 10-15 cm, then placing the cut beef in ice water at the temperature of 0-minus 5 ℃ for soaking for 1-3 hours, then taking out the beef, and placing the beef in an environment at the temperature of 10-15 ℃ for 30-60 minutes;

2) treatment before preservation

The placed preservative is placed in the preservative for preservation, and then the whole preservative is assembled in the gauze for use;

3) soaking

The prepared preservative is placed in clear water to be dissolved, liquid medicine is supported, all cut beef is placed in the liquid medicine, the liquid medicine is evenly smeared on the outer surface of the beef by hand to be soaked, the soaking environment temperature is 0-5 ℃, the soaking time is 5-10 minutes, and then the beef is taken out and drained;

4) freezing

Fixing four sides of the cube soaked and drained beef through eight separation nets, then freezing the beef blocks in an environment with the temperature of-20 to-30 ℃ for 10 to 12 hours, taking out the beef blocks after freezing, and separating the eight separation nets;

5) package (I)

The beef jerky is boiled into fat beef tallow, the boiled fat beef is evenly smeared on the surfaces of beef blocks and then stored, the frozen beef blocks completely wrapped by the beef tallow are placed in a gas bag for storage, the gas components in the gas bag are gas combination of 10% of oxygen, 70% of carbon dioxide and 20% of nitrogen, and then the beef jerky is placed in a refrigerated cabinet for storage.

Preferably, the preservative comprises the following components:

chitosan, vitamin C complex, protamine, nisin, poly-lysine and lysozyme, and the proportion of the components is as follows: 0.1-0.2 part of chitosan, 0.1-0.2 part of vitamin C complex, 0.2-0.4 part of protamine, 0.2-0.4 part of nisin, 0.2-0.4 part of poly-lysine and 0.2-0.4 part of lysozyme;

during preparation, mixing and stirring chitosan, vitamin C complex, protamine, nisin, polylysine and lysozyme in proportion, and fermenting the stirred preservative for 20-22 hours;

and then placing the fermented preservative in an environment with the temperature of 0-5 ℃ for 1-2 hours.

Preferably, the shape of the partition holes of the partition net is square partition holes with the width of 2-4 cm.

Preferably, the temperature of the refrigerated cabinet is-2 to-5 ℃ during packaging.

Preferably, the environmental temperature for preserving beef full of beef tallow is 0 to-10 ℃.

Preferably, the beef in step 1) is cut by a cutting line.

Compared with the prior art, the invention has the following beneficial effects:

(1) the beef is processed into cubes with the same size, beef fat is fully coated on the surface of the beef before storage, and the beef is frozen, so that the beef can be completely stored in the beef fat for a long time;

(2) the beef blocks with the same size can be uniformly frozen after being stored;

(3) and the beef can not be interfered by external zymophyte by the preservation of the preservative.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic flow chart of a pretreatment method for freezing and refreshing beef according to an embodiment of the invention.

Detailed Description

The invention is described in detail with reference to the following drawings and detailed description:

example 1

Please refer to FIG. 1

The pretreatment method for freezing and refreshing beef provided by the embodiment of the invention comprises the following steps:

1) cutting process

During cutting, cutting the beef from the lower part of the body of the beef, then removing the bones inside the beef, taking out the complete bones, then separating fat meat and beef tendon inside the beef from the beef main body, then cutting the processed beef into cube blocks with the length, width and height of 10-15 cm, then placing the cut beef in ice water at the temperature of 0-minus 5 ℃ for soaking for 1-3 hours, then taking out the beef, and placing the beef in an environment at the temperature of 10-15 ℃ for 30-60 minutes;

2) treatment before preservation

The placed preservative is placed in the preservative for preservation, and then the whole preservative is assembled in the gauze for use;

3) soaking

The prepared preservative is placed in clear water to be dissolved, liquid medicine is supported, all cut beef is placed in the liquid medicine, the liquid medicine is evenly smeared on the outer surface of the beef by hand to be soaked, the soaking environment temperature is 0-5 ℃, the soaking time is 5-10 minutes, and then the beef is taken out and drained;

4) freezing

Fixing four sides of the cube soaked and drained beef through eight separation nets, then freezing the beef blocks in an environment with the temperature of-20 to-30 ℃ for 10 to 12 hours, taking out the beef blocks after freezing, and separating the eight separation nets;

5) package (I)

The beef jerky is boiled into fat beef tallow, the boiled fat beef is evenly smeared on the surfaces of beef blocks and then stored, the frozen beef blocks completely wrapped by the beef tallow are placed in a gas bag for storage, the gas components in the gas bag are gas combination of 10% of oxygen, 70% of carbon dioxide and 20% of nitrogen, and then the beef jerky is placed in a refrigerated cabinet for storage.

The preservative comprises the following components:

chitosan, vitamin C complex, protamine, nisin, poly-lysine and lysozyme, and the proportion of the components is as follows: 0.1-0.2 part of chitosan, 0.1-0.2 part of vitamin C complex, 0.2-0.4 part of protamine, 0.2-0.4 part of nisin, 0.2-0.4 part of poly-lysine and 0.2-0.4 part of lysozyme;

during preparation, mixing and stirring chitosan, vitamin C complex, protamine, nisin, polylysine and lysozyme in proportion, and fermenting the stirred preservative for 20-22 hours;

and then placing the fermented preservative in an environment with the temperature of 0-5 ℃ for 1-2 hours.

The shape of the partition holes of the partition net is square partition holes with the width of 2-4 cm, the temperature of a refrigerated cabinet is-2 to-5 ℃ during packaging, the environmental temperature for preserving beef full of beef tallow is 0 to-10 ℃, and the beef in the step 1) is cut through cutting lines.

Example 2

The pretreatment method for freezing and refreshing beef provided by the embodiment of the invention comprises the following steps:

1) cutting process

During cutting, cutting the beef from the lower part of the body of the beef, then removing the bones inside the beef, taking out the complete bones, then separating fat meat and beef tendon inside the beef from the beef main body, then cutting the processed beef into square blocks with the length, width and height of 10 centimeters, then placing the cut beef in ice water at 0 ℃ for soaking for 1 hour, then taking out the beef, and placing the beef in an environment at 10 ℃ for 30 minutes;

2) treatment before preservation

The placed preservative is placed in the preservative for preservation, and then the whole preservative is assembled in the gauze for use;

3) soaking

The prepared preservative is placed in clear water to be dissolved, liquid medicine is supported, all cut beef is placed in the liquid medicine, the liquid medicine is evenly smeared on the outer surface of the beef by hand to be soaked, the soaking environment temperature is 0 ℃, the soaking time is 5 minutes, and then the beef is taken out and drained;

4) freezing

Fixing four sides of the cube soaked and drained beef through eight separation nets, then placing the beef blocks in an environment with the temperature of-20 ℃ for freezing for 10 hours, taking out the beef blocks after freezing, and separating the eight separation nets;

5) package (I)

The beef jerky is boiled into fat beef tallow, the boiled fat beef is evenly smeared on the surfaces of beef blocks and then stored, the frozen beef blocks completely wrapped by the beef tallow are placed in a gas bag for storage, the gas components in the gas bag are gas combination of 10% of oxygen, 70% of carbon dioxide and 20% of nitrogen, and then the beef jerky is placed in a refrigerated cabinet for storage.

The preservative comprises the following components:

chitosan, vitamin C complex, protamine, nisin, poly-lysine and lysozyme, and the proportion of the components is as follows: 0.1 part of chitosan, 0.1 part of vitamin C complex, 0.2 part of protamine, 0.2 part of nisin, 0.2 part of poly-lysine and 0.2 part of lysozyme;

during preparation, mixing and stirring chitosan, vitamin C complex, protamine, nisin, polylysine and lysozyme in proportion, and fermenting the stirred preservative for 20 hours;

and then placing the fermented preservative in an environment at 0 ℃ for 1 hour. The shape of the separation holes of the separation net is square separation holes with the width of 2 cm, the temperature of a refrigerated cabinet is-2 ℃ during packaging, the ambient temperature for preserving beef coated with beef tallow is 0-0 ℃, and the beef in the step 1) is cut through cutting lines.

Example 3

The pretreatment method for freezing and refreshing beef provided by the embodiment of the invention comprises the following steps:

1) cutting process

During cutting, cutting the beef from the lower part of the body of the beef, then removing the bones inside the beef, taking out the complete bones, then separating fat meat and beef tendon inside the beef from the beef main body, then cutting the processed beef into square blocks with the length, width and height of 15 centimeters, then placing the cut beef in ice water at the temperature of-5 ℃ for soaking for 3 hours, then taking out the beef, and placing the beef in an environment at the temperature of 15 ℃ for 60 minutes;

2) treatment before preservation

The placed preservative is placed in the preservative for preservation, and then the whole preservative is assembled in the gauze for use;

3) soaking

The prepared preservative is placed in clear water to be dissolved, liquid medicine is supported, all cut beef is placed in the liquid medicine, the liquid medicine is evenly smeared on the outer surface of the beef by hand to be soaked, the soaking environment temperature is 5 ℃, the soaking time is 10 minutes, and then the beef is taken out and drained;

4) freezing

Fixing four sides of the cube soaked and drained beef through eight separation nets, then placing the beef blocks in an environment with the temperature of-30 ℃ for freezing for 12 hours, taking out the beef blocks after freezing, and separating the eight separation nets;

5) package (I)

The beef jerky is boiled into fat beef tallow, the boiled fat beef is evenly smeared on the surfaces of beef blocks and then stored, the frozen beef blocks completely wrapped by the beef tallow are placed in a gas bag for storage, the gas components in the gas bag are gas combination of 10% of oxygen, 70% of carbon dioxide and 20% of nitrogen, and then the beef jerky is placed in a refrigerated cabinet for storage.

The preservative comprises the following components:

chitosan, vitamin C complex, protamine, nisin, poly-lysine and lysozyme, and the proportion of the components is as follows: 0.2 percent of chitosan, 0.2 percent of vitamin C complex, 0.4 percent of protamine, 0.4 percent of nisin, 0.4 percent of poly-lysine and 0.4 percent of lysozyme;

during preparation, mixing and stirring chitosan, vitamin C complex, protamine, nisin, polylysine and lysozyme in proportion, and fermenting the stirred preservative for 22 hours;

and then placing the fermented preservative in an environment with the temperature of 5 ℃ for 2 hours. The shape of the separation holes of the separation net is a square separation hole with the width of 4 cm, the temperature of a refrigerated cabinet is-5 ℃ during packaging, the ambient temperature for preserving beef full of beef tallow is-10 ℃, and the beef in the step 1) is cut through a cutting line.

Example 4

The pretreatment method for freezing and refreshing beef provided by the embodiment of the invention comprises the following steps:

1) cutting process

During cutting, cutting the beef from the lower part of the body of the beef, then removing the bones inside the beef, taking out the complete bones, then separating fat meat and beef tendon inside the beef from the beef main body, then cutting the processed beef into square blocks with the length, width and height of 10 centimeters, then placing the cut beef in ice water at 0 ℃ for soaking for 3 hours, then taking out the beef, and placing the beef in an environment at 10 ℃ for 60 minutes;

2) treatment before preservation

The placed preservative is placed in the preservative for preservation, and then the whole preservative is assembled in the gauze for use;

3) soaking

The prepared preservative is placed in clear water to be dissolved, liquid medicine is supported, all cut beef is placed in the liquid medicine, the liquid medicine is evenly smeared on the outer surface of the beef by hand to be soaked, the soaking environment temperature is 0 ℃, the soaking time is 5 minutes, and then the beef is taken out and drained;

4) freezing

Fixing four sides of the cube soaked and drained beef through eight separation nets, then placing the beef blocks in an environment with the temperature of-30 ℃ for freezing for 12 hours, taking out the beef blocks after freezing, and separating the eight separation nets;

5) package (I)

The beef jerky is boiled into fat beef tallow, the boiled fat beef is evenly smeared on the surfaces of beef blocks and then stored, the frozen beef blocks completely wrapped by the beef tallow are placed in a gas bag for storage, the gas components in the gas bag are gas combination of 10% of oxygen, 70% of carbon dioxide and 20% of nitrogen, and then the beef jerky is placed in a refrigerated cabinet for storage.

The preservative comprises the following components:

chitosan, vitamin C complex, protamine, nisin, poly-lysine and lysozyme, and the proportion of the components is as follows: 0.2 percent of chitosan, 0.2 percent of vitamin C complex, 0.4 percent of protamine, 0.4 percent of nisin, 0.4 percent of poly-lysine and 0.4 percent of lysozyme;

during preparation, mixing and stirring chitosan, vitamin C complex, protamine, nisin, polylysine and lysozyme in proportion, and fermenting the stirred preservative for 22 hours;

and then placing the fermented preservative in an environment at 0 ℃ for 2 hours.

The shape of the separation holes of the separation net is a square separation hole with the width of 4 cm, the temperature of a refrigerated cabinet is-5 ℃ during packaging, the ambient temperature for preserving beef full of beef tallow is-10 ℃, and the beef in the step 1) is cut through a cutting line.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.