Tea preservative and preparation method and application thereof

A preservative and tea technology, applied in the field of tea preservatives and its preparation, can solve the problems of unsatisfactory fresh-keeping effect, failure to consider comprehensive factors, and deterioration of tea quality, so as to maintain the original quality, overcome the influence, and delay the deterioration effect

Inactive Publication Date: 2010-09-15
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, green tea is a product that is produced seasonally and consumed throughout the year, and the production and processing of tea leaves are mostly concentrated in spring. It needs to go through a long season of high temperature and high humidity during its storage and sales. Affected by environmental factors such as content and light, tea will age or even deteriorate, resulting in the reduction of chlorophyll, soluble total sugar, ascorbic acid, tea polyphenols, free amino acids, reducing sugar and other substances, causing the

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Tea preservative of the present invention

[0014] Formula 1: It consists of 25 parts of iron powder, 15 parts of ferrous chloride, 25 parts of sodium bicarbonate, 10 parts of fumaric acid, 20 parts of zeolite and 5 parts of active desiccant by mass.

[0015] Formula 2: It consists of 20 parts of iron powder, 10 parts of ferrous chloride, 20 parts of sodium bicarbonate, 5 parts of fumaric acid, 15 parts of zeolite and 2 parts of active desiccant by mass.

[0016] Preparation method: Mix the components of the tea preservative evenly according to the mass ratio, the total amount is controlled at 1g, and then seal it with an aluminum foil bag for later use.

Embodiment 2

[0017] Embodiment 2 parallel test compares the fresh-keeping effect of this antistaling agent and existing antistaling agent

[0018] Tea raw material: Suzhou Biluochun tea

[0019] Physicochemical composition (%) (dry state mass percent) before table 1 fresh-keeping

[0020] name

[0021] Processing method (1): according to the antistaling agent of example 1 preparation, after packing with aluminum foil bag, then tealeaves and the antistaling agent of formula 1 are packed with aluminum foil bag according to mass ratio 50: 1, measure physical and chemical composition after storing at room temperature for 8 months .

[0022] Physical and chemical composition (%) (mass percentage in dry state) after table 2 storage 8 months

[0023] name

[0024] Treatment method (2) Simultaneously use the antistaling agent A in the existing Biluochun tea finished product to carry out 8-month storage and preservation experiments on Suzhou Biluochun tea, and the treatment me...

Embodiment 3

[0031] Tea raw materials: Jiangsu Jintan Maoshan Qingfeng tea

[0032] Table 5 Physicochemical composition (%) (dry state mass ratio) of tealeaves before fresh-keeping:

[0033] name

moisture

ascorbic acid

Tea polyphenols

Free amino acids

Chlorophyll

total soluble sugar

content

4.82

0.406

43.15

10.68

0.0805

2.02

[0034] Processing method (1): the antistaling agent of the present invention prepared by formula 2 of Example 1 is packaged in an aluminum foil bag, and then the tea leaves and the antistaling agent are packed in an aluminum foil bag according to a mass ratio of 50:1, and stored at room temperature for eight months. Physical and chemical composition.

[0035] Physical and chemical composition (%) (dry state mass percent) after table 6 storage 8 months:

[0036] name

moisture

ascorbic acid

Tea polyphenols

Free amino acids

Chlorophyll

total soluble sugar

...

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PUM

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Abstract

The invention relates to a tea preservative and a preparation method and an application thereof. The preservative is prepared from the following components in percentage by weight: 20-25 parts of ferrous powder, 10-15 parts of iron dichloride, 20-25 parts of sodium bicarbonate, 5-10 parts of trans-butene diacid, 15-20 parts of zeolite and 2-5 parts of active dryer, and the dosage of the preservative is 2 percent of fresh tea in mass and is packaged with an aluminum foil bag for storage. The tea preservative has low cost, convenient preparation and little quality deterioration of tea in a storage process, and can effectively overcome the influence of external environmental conditions on tea, protect the tea quality, decrease the economic loss and increase the production benefits.

Description

technical field [0001] The invention relates to a tea preservative and its preparation method and application. Background technique [0002] In recent years, many studies have shown that green tea has many functions such as antibacterial, lowering blood pressure, stabilizing blood sugar level, anti-mutation, anti-cancer, anti-radiation, anti-aging and so on. With the improvement of people's quality of life and the increase in demand for tea products, the awareness of health care has gradually increased, which provides a broad space for the development of various teas. However, green tea is a product that is produced seasonally and consumed throughout the year, and the production and processing of tea leaves are mostly concentrated in spring. It needs to go through a long season of high temperature and high humidity during its storage and sales. Affected by environmental factors such as content and light, tea will age or even deteriorate, resulting in the reduction of chloro...

Claims

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Application Information

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IPC IPC(8): A23F3/00A23L3/358A23L3/3508A23L3/3427
Inventor 汪志君葛庆丰方维明蒋云升金昌海于海
Owner YANGZHOU UNIV
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