Instant tea granules and preparation method thereof

A technology for instant tea and granules, applied in the directions of tea, tea extraction, food science, etc., can solve the problems of improving the fluidity and cold solubility of instant tea, and achieve good fluidity and instant solubility, smooth granule surface and low production cost. Effect

Inactive Publication Date: 2018-04-10
HANGZHOU TEA RES INST CHINA COOP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, neither improves the flowability and cold dissolving properties of instant tea

Method used

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  • Instant tea granules and preparation method thereof
  • Instant tea granules and preparation method thereof
  • Instant tea granules and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Weigh 1 kg of green tea raw material, extract according to the extraction time of 90 minutes, material-to-liquid ratio of 1:22, and extraction temperature of 80°C to obtain the extraction solution, centrifugally filter the extraction solution, pass through the membrane, and use a thin film flash evaporator to dilute the tea soup The solid content is concentrated to 20%. Weigh a certain mass of concentrated liquid respectively, and the addition ratio of maltodextrin is 50%

[0032] (w / w), be prepared into the material that gross mass is 50kg 70% concentration, adjust material temperature 15 ℃, add CO 2 The concentration ratio is 1:2 (v / v), spray drying after fully mixing, the air inlet temperature is 180°C, and instant tea granules are obtained, which are tested by GB / T8304-2013, QB / T 4067-2010 and other methods: moisture content 5.33±0.37%, average particle size 370.5μm, bulk density 0.16±0.01g / ml, CI index 15.18±3.22, dissolved in cold water within 30s, dissolved in h...

Embodiment 2

[0034] Weigh 1 kg of green tea raw material, extract according to the extraction time of 90 minutes, material-to-liquid ratio of 1:24, and extraction temperature of 90°C to obtain the extraction solution, centrifugally filter the extraction solution, pass through the membrane, and use a thin film flash evaporator to dilute the tea soup The solid content is concentrated to 20%. Weigh a certain mass of concentrated liquid respectively, add maltodextrin at a ratio of 25% (w / w), and prepare a material with a total mass of 50kg at a concentration of 50%, adjust the temperature of the material at 10°C, and add CO 2 The concentration ratio is 1:2 (v / v), mixed thoroughly and then spray-dried, and the air inlet temperature is 200°C to obtain instant tea granules, which are tested by GB / T 8304-2013, QB / T 4067-2010 and other methods: moisture The content is 4.21±0.26%, the average particle size is 221.4μm, the bulk density is 0.23±0.00g / ml, the CI index is 15.84±1.18, it dissolves in col...

Embodiment 3

[0036] Weigh 1 kg of green tea raw material, extract according to the extraction time of 90 minutes, material-to-liquid ratio of 1:24, and extraction temperature of 90°C to obtain the extraction solution, centrifugally filter the extraction solution, pass through the membrane, and use a thin film flash evaporator to dilute the tea soup The solid content is concentrated to 20%. Weigh a certain mass of concentrated solution, add maltodextrin at a ratio of 125% (w / w), and prepare a material with a total mass of 50kg at a concentration of 50%, adjust the temperature of the material at 10°C, and add CO 2 The concentration ratio is 1:2 (v / v), mixed thoroughly and then spray-dried, and the air inlet temperature is 200°C to obtain instant tea granules, which are tested by GB / T 8304-2013, QB / T 4067-2010 and other methods: moisture The content is 5.32±0.06%, the average particle size is 327.0μm, the bulk density is 0.10±0.00g / ml, and the CI index is 24.38±0.53. It dissolves in cold wate...

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Abstract

The invention discloses instant tea granules and a preparation method thereof. The method includes the steps of raw material extraction, filtration, centrifugation, concentration and drying granulation, wherein the raw materials of tea are extracted by using hot water, filtered and centrifuged, pass through a light scraping flat-sheet membrane and a reverse osmosis membrane, and then are concentrated by adopting a centrifugal thin film evaporator to obtain a concentrated solution; maltodextrin is added into the concentrated solution to prepare a mixed material, material temperature is adjusted, an inert gas hollow granulation technology is adopted, an inert gas is added and fully mixed with the material, and then spray drying is conducted to obtain the instant tea granules. The prepared instant tea is in a hollow granule shape, the granules are smooth in surface, even in size, large in mean diameter, good in liquidity and instant solubility and better in integrated quality, and can beused as cold solubility instant-tea, and the product safety is high; the preparation process is simple, the production cost is low, and the method has high operability.

Description

technical field [0001] The invention belongs to the technical field of tea deep processing, and in particular relates to an instant tea granule and a preparation method thereof. Background technique [0002] Instant tea is a solid tea beverage that can be quickly dissolved in water. It has a small size, light drinking package, can be used for cold or hot drinks, and has no trouble of removing slag, which meets the needs of modern fast-paced life; It can also be used in tea drinks, biscuits, bread and other foods. However, my country's instant tea products lack competitiveness in the international market in terms of sensory quality, particle size, instant solubility and moisture resistance, and have problems such as small particle size, poor fluidity, poor cold solubility, and single use. [0003] At present, the production of instant tea is mainly faced with the following problems: weak taste, poor cold solubility, low aroma, difficult storage and packaging in the process o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23F3/16A23F3/28
CPCA23F3/16A23F3/28
Inventor 朱跃进张士康吕杨俊张海华潘俊娴蒋玉兰刘均
Owner HANGZHOU TEA RES INST CHINA COOP
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