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Method for measuring pasteurization retention time of high-quality milk

A technology of pasteurization and time measurement, applied in the direction of material resistance, etc., can solve the problems of loss and loss of nutrients in fresh milk, and achieve the effects of improving control accuracy, stable and reliable equipment guarantee, and reliable and accurate detection results

Active Publication Date: 2017-09-22
NEW HOPE DAIRY HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology helps determine how long it takes from producing freshly prepared milk or bacteria that have been treated through various methods such as thermal treatment (hot air) or chemical treatments like enzymes. It also includes measurement techniques based on electrical properties called electropotentials, allowing precise measurements over longer periods without losing accuracy due to factors like temperature changes or pH levels affecting certain substances found naturally within raw materials during processing steps. Overall, this new approach allows us to improve quality standards while ensuring safety and reliability in production processes.

Problems solved by technology

Technological Problem addressed in this patented text relates how to improve the quality of frozen dairy products such as pasta (pasta) yogurt while reducing losses due to excessive temperatures required before final packaging.

Method used

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  • Method for measuring pasteurization retention time of high-quality milk
  • Method for measuring pasteurization retention time of high-quality milk

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Insulation pipe holding time test

[0039] Using soft water (removes most of the ions, reduces the conductivity of pure water, and improves the measurement accuracy), the equipment runs normally, the water temperature is 24℃-26℃, and the homogenization pressure is 19Mpa. When the sterilizer is not heating up, the reflux circulation method is used for testing. Use a stopwatch to calculate the time when the conductivity of No. 1 and 2 begins to fluctuate before passing 50ml of sodium chloride solution of 7% and 30% concentration into the insulation tube. After 50ml of sodium chloride solution of 7% concentration is entered, the conductivity There is no fluctuation, because 50ml of 30% sodium chloride solution is used, and the time is calculated with a stopwatch when the conductivity of No. 1 and No. 2 begins to fluctuate before the needle is quickly injected into the insulation tube. as follows:

[0040] Table 1: The first conductivity change record

[0041]

[0042]

[0043] ...

Embodiment 2

[0045] Insulation pipe holding time test

[0046] The test process is the same as the first test. After adjusting the minimum display value of the conductivity meter to 0.01, the test is performed continuously for 6 times. The specific data are as follows:

[0047] Table 2: The second conductivity change record

[0048] Serial number

[0049] It can be seen from the data that the shortest holding time is 24.09 seconds, the longest holding time is 24.41 seconds, and the average holding time is 24.35 seconds. Combining the test results of Example 1, it is concluded that the Tetra Pak sterilizer has a longer thermal insulation tube than normal pasteurization due to the starting point of its process design; in addition, because the flow rate is about 9.1 tons, the low flow rate will affect the holding time. Had an impact. Therefore, a Tetra Pak engineer is required to arrive at the site, adjust the flow rate to the rated flow rate, fully simulate bacteriostasis, and measure the hold...

Embodiment 3

[0051] Insulation pipe holding time test

[0052] Test process and specific values, soft water 10.2 tons, homogeneous pressure 19Mpa, sterilization temperature 85±2℃, disconnect the degassing tank, and the flow rate is adjusted to the rated flow rate by the engineer. The specific values ​​are as follows:

[0053] Table 3: The third conductivity change record

[0054] Serial number

[0055] From the test time point of view, the shortest holding time of soft water test is 18.78 seconds, the longest holding time is 19.25 seconds, the average holding time is 19.07 seconds, the maximum deviation is 0.33 seconds, and there is no negative deviation. Note: The theoretical hold time is calculated based on the 0.8 insurance coefficient provided by Tetra Pak engineers, 15 seconds / 0.8=18.75 seconds.

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Abstract

The invention discloses a method for measuring pasteurization time. The method comprises the following steps: (1) forming at least one detection hole in each of the front end and the back end of a pasteurization insulation tube, that is, forming a front-end detection hole and a back-end detection hole, and mounting at least one potential monitoring probe inside each of the front-end detection hole and the back-end detection hole respectively; (2) arranging a needle opening at a 1-50cm position of the upstream of the front-end detection hole for injecting salt water; (3) starting pasteurization equipment, substituting milk with water, and enabling water to flow in the equipment in the flowing form of milk in a normal pasteurization process; (4) injecting the salt water from the needle opening, monitoring potential changes of the potential monitoring probes at the front-end detection hole and the back-end detection hole, and recording the appearance time difference between potential peaks of the two. By the method for measuring the pasteurization retention time of the high-quality milk, the retention time in the pasteurization process is measured by a potentiometric method, so that the control precision of the retention time in the pasteurization process is improved, and a stable and reliable equipment guarantee is provide for preparation of the high-quality milk.

Description

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Claims

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Application Information

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Owner NEW HOPE DAIRY HLDG
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