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: 2005-06-15
TEA RES INST CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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
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Effect test

Embodiment 1

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

[0020] The defluoridation agent is prepared into a solution with a concentration of 1%, which is uniformly added to the brick tea raw materials according to the addition amount of 0, 5, 10, 15, 20, and 25 g / kg respectively, and dried 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 defluoridation agent and its influence on tea quality components

[0022] Added amount Water-soluble fluoride Fluoride reduction rate Tea polyphenols Amino acids Caffeine

[0023] (g / kg) (mg / kg dry tea) (%) (%) (%) (%)

[0024] 0 481.72 10.79 0.47 1.82

[0025] 5 196.91 59.12 10.01 0.42 1.76

[0026] 10 175.63 63.54 9.74 0.44 1.72

[0027] 15 161.95 66.3...

Embodiment 2

[0032] Processing and production of Jianguo Kang brick tea

[0033] 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 trimming tea, the brick tea defluoridation agent-calcium dihydrogen phosphate was evenly added in a proportion of 0.5%, and heated by steam, fermented for 2 days, dried, winnowed, and pressed to produce 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 the Jiangfu Kang brick tea added with the 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

[0035] Processing and production of fluorine-reduced Fu brick tea:

[0036] According to the processing technology of the present invention, in 1 ton of raw materials of Fuzhuan brick tea, the proportion of 0.5% is uniformly added into the Fuzhuan brick tea defluoridation agent-the mixture of calcium dihydrogen phosphate and calcium chloride, and steam is passed through to heat and ferment for 4 hours , pressed and dried to make fluorine-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

The invention discloses a processing method for reducing the fluorine content of brick tea. The processing method is to add a fluorine-reducing agent in the brick tea processing process, and then make low-fluorine brick tea through steaming, stacking, fermentation, compression molding, drying and other processes according to the processing technology of brick tea. The fluorine reducing agent can form insoluble precipitates that cannot be absorbed by the human body with the water-soluble fluorine in the brick tea, effectively reduce the leaching amount of the water-soluble fluorine in the tea soup, and has no adverse effect on the quality of the brick tea.

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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Patent Type & Authority Patents(China)
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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