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Concentrated red date juice and preparation method thereof

A technology of concentrating jujube juice and concentrated fruit juice, which is applied in the direction of food science, etc., can solve the problems of low soluble solid content, short shelf life, and easy corruption, and achieve the effect of high soluble solid content, convenient transportation, and extended shelf life

Inactive Publication Date: 2013-03-27
新疆天海绿洲农业科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this process are: 1. The jujube juice produced by this process contains a certain amount of pulp, and the juice is turbid; 2. The product has low soluble solid content, which is easy to rot and deteriorate, thereby affecting the shelf life of the product. short term

Method used

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  • Concentrated red date juice and preparation method thereof
  • Concentrated red date juice and preparation method thereof
  • Concentrated red date juice and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Concentrated jujube juice (preparation of 60 tons of concentrated jujube juice) is prepared through the following steps:

[0039] (1) Cleaning and sorting: Use 240 tons of mature jujubes with a sugar content of 8-12 Brix as raw materials, unload the raw fruit into the cleaning pool, wash the raw fruit with tap water, and send it to the sorting table with the elevator. carry out selection;

[0040] (2) Clean again: clean the selected raw materials in (1) again;

[0041] (3) Softening and cooling: Cool the raw fruit in (2) through a 70°C tunnel pre-cooking machine, an air knife dryer, and an elevator to cool down, so that the temperature is controlled at 45°C;

[0042] (4) Extraction: Send the raw fruit cooled at 45°C in (3) to the extraction tank. At this time, the solid-liquid ratio: 1:4, sugar content: 9-12Brix, temperature: 45°C, and extract for 40 minutes;

[0043] (5) Pit removal: After the leaching time is over, the jujube pits are removed with a pitting machine,...

Embodiment 2

[0050] Concentrated jujube juice is prepared through the following steps:

[0051] (1) Cleaning and sorting: Ripe jujube with a sugar content of 8-12 Brix is ​​used as raw material, the raw fruit is unloaded into the cleaning pool, and the raw fruit is washed with tap water while being sent to the sorting table with the elevator, and the raw fruit is sorted ;

[0052] (2) Clean again: clean the selected raw materials in (1) again;

[0053] (3) Softening and cooling: Cool the raw material fruit in (2) through an 80°C tunnel precooker, an air knife dryer, and an elevator to keep the temperature at 50°C;

[0054] (4) Extraction: Send the raw fruit cooled at 50°C in (3) to the extraction tank. At this time, the ratio of solid to liquid: 1:4, sugar content: 9-12Brix, temperature: 50°C, and extract for 45 minutes;

[0055] (5) Pit removal: After the leaching time is over, the jujube pits are removed with a pitting machine, the jujube pits are discharged from the workshop, and the ...

Embodiment 3

[0062] Concentrated jujube juice is prepared through the following steps:

[0063] (1) Cleaning and sorting: Ripe jujube with a sugar content of 8-12 Brix is ​​used as raw material, the raw fruit is unloaded into the cleaning pool, and the raw fruit is washed with tap water while being sent to the sorting table with the elevator, and the raw fruit is sorted ;

[0064] (2) Clean again: clean the selected raw materials in (1) again;

[0065] (3) Softening and cooling: Cool the raw material fruit in (2) through a 75°C tunnel pre-cooking machine, an air knife dryer, and an elevator to keep the temperature at 45°C;

[0066] (4) Extraction: Send the raw fruit cooled at 45°C in (3) to the extraction tank. At this time, the ratio of solid to liquid: 1:4, sugar content: 9-12Brix, temperature: 45°C, extract for 45 minutes;

[0067] (5) Pit removal: After the leaching time is over, the jujube pits are removed with a pitting machine, the jujube pits are discharged from the workshop, and...

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Abstract

The invention discloses a concentrated red date juice. The concentrated red date juice is prepared through the following steps of (1) cleaning and selecting; (2) cleaning again; (3) softening and cooling; (4) leaching; (5) removing kernels; (6) clarifying; (7) separating and sterilizing primarily; (8) performing ultrafiltration; (9) concentrating and sterilizing secondarily; and (10) performing sterile filling. The concentrated red date juice prepared by the method is red brown transparent liquid without deposits and suspended substances, additives and anticorrosive are not added during production and processing, and a method for low-temperature leaching and quick concentration is adopted, so that the concentrated red date juice has the characteristics that the inherent taste and aroma of red dates are kept, the content of soluble solids is high, transportation is facilitated, and the shelf life of the concentrated read data juice is prolonged.

Description

technical field [0001] The invention relates to fruit juice, in particular to concentrated jujube juice and a preparation method thereof. Background technique [0002] Jujubes are very nutritious. The fresh dates contain 20%-36% sugar, and the dried dates contain 55%-80% sugar. It has high calorie content and can be used as a food substitute. The vitamin C content of jujube ranks among the best among fruits, with a content of 0.1-0.6 grams per hectogram, which is about 100 times higher than that of apples and peaches. The content of vitamin P is also the crown of all fruits. People praise jujube as a "natural vitamin pill". ". Every 100 grams of fresh jujube contains 1.2 grams of protein, which is almost the crown of fresh fruits. Dried jujubes produce extremely high calories, about 1200-1300 kilojoules per 100 grams of jujubes, which is close to that of raisins, and the content of protein, calcium, phosphorus, riboflavin and niacin is higher than that of raisins. At the ...

Claims

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Application Information

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IPC IPC(8): A23L2/02A23L2/385
Inventor 李志民李娜王强杨菲菲
Owner 新疆天海绿洲农业科技股份有限公司
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