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Subzero temperature-gust quick semi-unfreezing process of frozen platy meat products

A semi-thawing and meat technology, which is applied in the direction of freezing/cooling to preserve meat/fish, etc., which can solve the problems of insufficient thawing or excessive thawing that are unfavorable to the batching process

Inactive Publication Date: 2015-01-14
TAIZHOU ANJOY FOODS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Insufficient thawing or excessive thawing are not conducive to the implementation of the subsequent batching process

Method used

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  • Subzero temperature-gust quick semi-unfreezing process of frozen platy meat products
  • Subzero temperature-gust quick semi-unfreezing process of frozen platy meat products
  • Subzero temperature-gust quick semi-unfreezing process of frozen platy meat products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The design of the infrastructure site and fan installation of the negative temperature-gust fast semi-thawing chamber is attached Figure 3A , 3B As shown, 8 tons of frozen minced surimi are removed from the outer carton, and put on the shelves at a loading capacity of 2 boards / layer, and the thawing rack loaded with frozen surimi is pushed into the thawing room pre-cooled to -6°C for arrangement. According to attached figure 1 Select the "frozen product temperature reference object" at the position shown, and place the center / surface temperature probes in the middle of the 2 plates of frozen surimi and on the surface of the frozen surimi. Start the negative temperature-gust fast semi-thawing process control program (the average surface temperature of the "frozen product temperature reference object" reaches -6°C for the first time, then turn off the fan, and then start the fan after the average surface temperature drops to -8°C, and promote thawing through the gust o...

Embodiment 2

[0063] The design of the infrastructure site and fan installation of the negative temperature-gust fast semi-thawing chamber is attached Figure 3A , 3B As shown, 12 tons of frozen minced surimi are removed from the outer carton, and put on the shelves with a loading capacity of 2 boards / layer, and the thawing racks loaded with frozen surimi are pushed into the thawing room pre-cooled to -6°C for arrangement. All the other negative temperature-gust semi-thawing processes are unchanged with reference to Example 1. After the frozen surimi was thawed by negative temperature and gust of wind for 2.7 hours, the actual measurement of the temperature probe showed that the center temperature of the "frozen product temperature reference object" was -8°C, and the surface temperature was -7.2°C, which reached the half-thawing requirement, and the fan was automatically turned off. In order to confirm the overall thawing state of the frozen surimi in the thawing chamber, 15 plates of froz...

Embodiment 3

[0066] The design of the infrastructure site and fan installation of the negative temperature-gust fast semi-thawing chamber is attached Figure 3A , 3B As shown, 8 tons of frozen chicken breasts are removed from the outer cartons, and put on the shelves with a loading capacity of 2 boards / layer (the smooth sides fit together), and the thawing rack loaded with frozen chicken breasts is pushed into the thawing chamber pre-cooled to -6°C to arrange. All the other negative temperature-gust semi-thawing processes are unchanged with reference to Example 1. After the frozen chicken breast was thawed by negative temperature and gust of wind for 2.5 hours, the actual measurement of the temperature probe showed that the center temperature of the "frozen product temperature reference object" was -8°C, and the surface temperature was -7.2°C, which reached the half-thawing requirement, and the fan was automatically turned off. In order to confirm the overall thawing state of the frozen ...

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Abstract

The invention discloses a subzero temperature-gust quick semi-unfreezing process of frozen platy meat products. The subzero temperature-gust quick semi-unfreezing process comprises the following steps: loading the frozen platy meat products on unfreezing racks, placing the unfreezing racks in a subzero temperature unfreezing room with the room temperature being not higher than -6 DEG C, monitoring the center temperature and the surface temperature of the meat products by setting four frozen meat products as references, and enabling the center temperature of the frozen platy meat products to be -8+ / -1 DEG C by taking the center temperatures and the surface temperatures of the references as control nodes of a gust opening / closing procedure and at the air speed of (3-6)+ / -0.9m / s during opening, so that the state of internal / external balanced semi-unfreezing is achieved under the subzero temperature-gust unfreezing condition that the center / surface temperature difference is 0.5-1.5 DEG C. The subzero temperature-gust semi-unfreezing process has the positive effects that 1, the frozen platy meat products can quickly achieve the unfreezing state needed for quickly-frozen prepared foods; 2, the center / surface temperature difference after semi-unfreezing is less and the internal / external unfreezing degree is balanced; 3, the subzero temperature-gust quick semi-unfreezing process can be applied to quick unfreezing of large batches of frozen meat products; and 4, the energy consumption of semi-unfreezing is less and the production cost cannot be greatly increased.

Description

technical field [0001] The invention belongs to the technical field of food processing, and relates to a semi-thawing process of quick-frozen prepared food raw materials, in particular to a negative temperature-gust fast semi-thawing process of plate-shaped frozen meat products. Background technique [0002] Livestock and poultry meat and aquatic muscle are commonly used raw materials in quick-frozen prepared food processing. Livestock, poultry, and aquatic animals are slaughtered, divided or otherwise roughly processed near the breeding and fishing grounds, and then plated or formed into plates, which are more convenient for storage and transportation after being frozen. For example, the plate-shaped (thickness 5-8cm) frozen surimi made from chilled raw fish through the surimi processing process, and various plate-shaped (thickness 6-10cm) frozen livestock and poultry meat (chicken breast, chicken puree, pork, etc.) Lean fat, pork minced fat, poultry neck skin). Plate-sha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B4/07
Inventor 黄建联阮东娜丁浩宸王强叶伟建
Owner TAIZHOU ANJOY FOODS
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