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Low-temperature sterilization method of tea juice

A tea juice and low temperature technology, applied in the field of low temperature sterilization of tea juice, can solve the problems of poor pulse electric field stability, large investment in membrane sterilization equipment, high maintenance cost, etc., achieve low use cost, retain tea juice flavor and active substances, The effect of ensuring food safety

Inactive Publication Date: 2018-03-06
TEA RES INST CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] According to patents and related documents, there are membrane sterilization, ultra-high pressure sterilization, and pulse electric field for liquid low-temperature sterilization. These technologies have some disadvantages in the industrial sterilization of heat-sensitive liquids, such as large investment and maintenance costs for membrane sterilization equipment. High, ultra-high pressure sterilization has a certain impact on flavor and active substances, and the stability of pulsed electric field in industrial production is poor, and the investment is large

Method used

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  • Low-temperature sterilization method of tea juice
  • Low-temperature sterilization method of tea juice
  • Low-temperature sterilization method of tea juice

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Take the tea juice, first concentrate the green tea juice to a solid content of 10Brix, then pour the tea juice into a stainless steel plate, so that the thickness of the tea juice in the stainless steel plate is 5mm, and then adjust the strong electrode head of the generator to make the plasma generate The distance between the strong electrode tip of the device and the tea juice liquid surface is 3mm, and finally the plasma generator voltage is controlled to be 100V, and the sterilization time is 60 seconds to carry out static sterilization of the tea juice.

[0018] The stainless steel disc in this embodiment is a circular stainless steel disc with a diameter of 15-40 cm, and the two electrodes of the ion generator are arranged at the dots of the circular stainless steel disc.

[0019]

Embodiment 2

[0021] Take the tea juice, first concentrate the black tea juice to a solid content of 25Brix, then pour the tea juice into a stainless steel plate, so that the thickness of the tea juice in the stainless steel plate is 2mm, and then adjust the strong electrode head of the generator to make the plasma generate The distance between the strong electrode tip of the device and the tea juice liquid surface is 2 mm, and finally the voltage of the plasma generator is controlled to be 120 V, and the sterilization time is 2 seconds to carry out static sterilization of the tea juice.

[0022] The stainless steel disc in this embodiment is a circular stainless steel disc with a diameter of 15-40 cm, and the two electrodes of the ion generator are arranged at the dots of the circular stainless steel disc.

[0023]

Embodiment 3

[0025] Take the tea juice, first concentrate the black tea juice to a solid content of 0.5Brix, then pour the tea juice into a stainless steel plate, so that the thickness of the tea juice in the stainless steel plate is 10mm, and then adjust the strong electrode head of the generator to make the plasma The distance between the strong electrode tip of the generator and the tea juice liquid surface is 4mm, and finally the plasma generator voltage is controlled to 20V, and the sterilization time is 180 seconds to carry out static sterilization of the tea juice.

[0026] The stainless steel disc in this embodiment is a circular stainless steel disc with a diameter of 15-40 cm, and the two electrodes of the ion generator are arranged at the dots of the circular stainless steel disc.

[0027]

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Abstract

The invention discloses a low-temperature sterilization method of tea juice and belongs to the technical field of deep processing of tea. The method specifically comprises the steps as follows: tea juice is poured in a stainless steel plate, and the stainless steel plate is placed between two electrodes of a plasma generator for static sterilization; or the tea juice directly flows into the plasmagenerator via a pipeline for continuous circulating sterilization. The process is simple, the use cost per unit is low, the method is suitable for industrial continuous production, efficient low-temperature sterilization of the tea juice is really realized, the food safety is guaranteed, and the flavor and active substances of the tea juice are reserved.

Description

technical field [0001] The invention belongs to the technical field of tea deep processing, and in particular relates to a method for low-temperature sterilization of tea juice. Background technique [0002] Tea contains many effective ingredients such as tea polyphenols, tea polysaccharides, theanine, theaflavins, and caffeine, which have anti-tumor, anti-aging, anti-fatigue, anti-radiation, elimination of heavy metal poisoning, metabolic regulation, beauty, and inhibition of harmful effects. Microorganisms, enhance memory and improve the brain and other effects. With the improvement of people's living conditions, people pay more and more attention to health consciousness, and the application of tea is also more and more extensive. Tea beverage is known as the "golden drink" in the 21st century. Microorganisms are ubiquitous in nature. In the process of food and beverage processing, disinfection and sterilization must be carried out to meet national hygiene standards and f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L3/00A23L3/005
CPCA23L3/001A23L3/005
Inventor 陈建新尹军峰邹纯许勇泉陈根生高颖汪芳
Owner TEA RES INST CHINESE ACAD OF AGRI SCI
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