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Method for processing reduced fluorine content brick tea

A processing method and technology of fluorine content, applied in tea treatment before extraction, etc., can solve problems such as failure to apply, and achieve obvious effects of reducing fluoride, significant economic benefits, and easy operation

Inactive Publication Date: 2003-08-13
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

However, these two methods have not been applied in actual production so far due to problems such as operating cost, fluoride reduction effect, and drinking safety.

Method used

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  • Method for processing reduced fluorine content brick tea

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Fluoride-reducing effect of fluoride-reducing agent and its influence on tea quality components

[0020] Prepare the defluoridation agent as a solution with a concentration of 1%, and add it to the brick tea raw material evenly according to the addition amount of 0, 5, 10, 15, 20, and 25 g / kg respectively, and dry it in an oven at 80°C until it is fully dry. Each treatment was repeated 3 times, and the content of water-soluble fluorine and its quality components in each tea sample before and after treatment were determined. The results are as follows:

[0021] Table 1 Fluoride-reducing effect of de-fluoridation agent and its influence on tea quality component content Added amount Water-soluble fluorine-reducing fluoride rate Tea polyphenol amino acid caffeine (g / kg) (mg / kg dry tea) (%) (%) (%) ) ( %) 0 481.72 10.79 0.47 1.82 5 196.91 59.12 10.01 0.42 1.76 10 175.63 63.54 9.74 0.44 1.72 15 161.95 66.38 10.09 0.41 1.77 20 151.98 6.91 0.41 1.76.1970.278.9

[0022] It ...

Embodiment 2

[0024] Processing and production of Jianguo Kang brick tea

[0025] According to the processing technology of the present invention, the raw materials for producing Kangzhuan tea: Jinyu tea and pruning tea are respectively subjected to defluoridation treatment. In 500 kg of Jinyu tea and 500 kg of trimmed tea, the brick tea defluoridation agent-calcium dihydrogen phosphate was evenly added at a rate of 0.5%, heated by steam, fermented for 2 days, dried, winnowed, and pressed into 980 kg of Norflucon bricks. According to the measurement by the Tea Quality Supervision, Inspection and Testing Center of the Ministry of Agriculture, the sensory quality of Jiangfu Kang brick tea added with brick tea defluoridation agent is normal, and its water-soluble fluorine content is 300.7mg / kg, which is 44.35% lower than that of the control Kang brick 540.3mg / kg .

Embodiment 3

[0027] Processing and production of fluorine-reduced Fu brick tea:

[0028] According to the processing technology of the present invention, 0.5% of the raw material of Fuzhuan brick tea is uniformly added into 1 ton of Fuzhuan brick tea raw material, and the mixture of brick tea defluoridation agent-calcium dihydrogen phosphate and calcium chloride is evenly added, and steam is passed through to heat and ferment for 4 hours, and then pressed , and dried to make fluoride-reduced Fu brick tea. The sensory quality of the defluoridated brick tea treated with brick tea defluoridation agent was normal, and its water-soluble fluorine content was reduced by 40.67% compared with the control.

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Abstract

A process for preparing brick tea with low fluorine content is characterized by use of a fluorine-reducing agent, which can act on the water-soluble fluorine in brick tea to become water-insoluble deposit.

Description

1. Technical field [0001] The invention relates to a processing method for reducing the fluorine content of brick tea, which belongs to the technical field of tea processing. 2. Background technology [0002] Fluorine is one of the essential trace elements for the human body. It can promote the calcification of teeth and bones. An appropriate amount of fluorine is beneficial to the development of human bones and the prevention of dental caries. However, if the intake is too high, it will manifest as osteosclerosis or osteoporosis, "dental fluorosis", joint pain, muscle atrophy, etc., and severe cases can lead to paralysis and loss of labor. This poisoning phenomenon is called "fluorosis". Therefore, the World Health Organization (WHO) recommends that the safe intake of fluorine for the human body is 2-4mg / day. day. [0003] Since the 1980s, the possible damage to the human body caused by excessive fluorine content in coarse and old tea has attracted the ...

Claims

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Application Information

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IPC IPC(8): A23F3/06
Inventor 林智舒爱民蒋迎尹军峰杨亚军
Owner TEA RES INST CHINESE ACAD OF AGRI SCI
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