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Irradiation sterilization method for frozen products

A technology for irradiating and sterilizing frozen products, which is applied in food preservation, food science, and applications. It can solve the problems of poor long-term fresh-keeping effect of meat quality, and achieve good long-term fresh-keeping effect, enhanced effect, and good fresh-keeping effect.

Active Publication Date: 2021-03-19
湖南湘华华大生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this invention, although the lower radiation dose can better reduce the radiation damage and maintain the texture, color, nutrition and flavor of the original meat products, but with the increase of the storage time of the meat products, the volatile basic nitrogen content has also increased, and the long-term preservation effect of meat quality is poor

Method used

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  • Irradiation sterilization method for frozen products

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Effect test

Embodiment 1

[0030] Embodiment 1 A kind of irradiation sterilization method of frozen product

[0031] The irradiation sterilization method of described frozen product, comprises the steps:

[0032] S1. Clean the beef products at 0°C, cut them into meat pieces with a thickness of 6cm, soak them in the preservative for 20 minutes, then drain them, absorb the water, and set aside;

[0033] S2. After the meat pieces obtained in step S1 are subjected to 10 min of high-voltage pulse electric field treatment, they are respectively packed into aseptic packaging bags to obtain prepackaged meat products; the high-voltage pulse electric field strength is 20 kV / cm, and the pulse width is 1 μs , the pulse frequency is 300Hz;

[0034] S3. Place the pre-packaged meat products obtained in step S2 at room temperature, turn on the electron beam accelerator for double-sided irradiation treatment, and the irradiation dose is 6 kGy; the time for the electron beam irradiation treatment is 5 minutes, and the b...

Embodiment 2

[0039] Embodiment 2 A kind of irradiation sterilization method of frozen product

[0040] The irradiation sterilization method of described frozen product, comprises the steps:

[0041] S1. Wash the beef products at 5°C, cut into meat pieces with a thickness of 12cm, and soak them in the preservative for 25min, then drain, absorb the water, and set aside;

[0042] S2. After the meat pieces obtained in step S1 are subjected to 20 min of high-voltage pulse electric field treatment, they are respectively packed into aseptic packaging bags to obtain prepackaged meat products; the high-voltage pulse electric field intensity is 30 kV / cm, and the pulse width is 2.5 μs, the pulse frequency is 500Hz;

[0043] S3. Place the pre-packaged meat products obtained in step S2 at room temperature, turn on the electron beam accelerator for double-sided irradiation treatment, and the irradiation dose is 8kGy; the time for the electron beam irradiation treatment is 12min, and the beam intensity 1...

Embodiment 3

[0048] Embodiment 3 A kind of radiation sterilization method of frozen product

[0049] The irradiation sterilization method of described frozen product, comprises the steps:

[0050] S1. Wash the beef products at 10°C, cut them into meat pieces with a thickness of 20cm, soak them in the preservative for 30min, then drain them, absorb the water, and set aside;

[0051] S2. After the meat pieces obtained in step S1 are subjected to 30 minutes of high-voltage pulse electric field treatment, they are respectively packed into aseptic packaging bags to obtain prepackaged meat products; the high-voltage pulse electric field strength is 40kV / cm, and the pulse width is 5μs , the pulse frequency is 680Hz;

[0052] S3. Place the pre-packaged meat products obtained in step S2 at room temperature, turn on the electron beam accelerator for double-sided irradiation treatment, and the irradiation dose is 10 kGy; the time for the electron beam irradiation treatment is 15 minutes, and the bea...

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Abstract

The invention belongs to the technical field of food freshness preserving and particularly relates to an irradiation sterilization method for frozen products. According to the irradiation sterilization method for the frozen products, through adding a freshness keeping agent composed of natural substances, employing a mode that an electron beam irradiation technology and high-voltage pulsed electric field treatment are combined, and finally carrying out assisting with a low-temperature storage freshness preserving method, the sterilization effect on the frozen products is effectively improved,and propagation of bacteria during storage is inhibited; and meanwhile, the quality and freshness of meat products can be effectively guaranteed, the frozen meat products are prevented from nutrient loss and rotting deterioration, and the freshness preserving period is prolonged.

Description

technical field [0001] The invention belongs to the technical field of food preservation, and in particular relates to an irradiation sterilization method for frozen products. Background technique [0002] Meat products are currently one of the most important animal foods on people's tables, which can provide high-quality protein and essential fatty acids. However, meat products are rich in nutrition, high in water activity, and spoilage microorganisms are easy to grow and reproduce. In addition, the raw and auxiliary materials used in processing are of various types and complex sources, and it is difficult to completely control source pollution and secondary pollution. my country's meat product processing is still at a low level. In the initial stage, although the low-temperature processing and sterilization technology was adopted, there were problems such as incomplete product sterilization, short shelf life, and poor safety. The main reason was microbial contamination. Hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L3/26A23L3/3472A23L3/3562
CPCA23L3/26A23L3/3472A23L3/3562Y02P60/85
Inventor 邹伟权罗志平王梦玲
Owner 湖南湘华华大生物科技有限公司
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