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Technical process of snow pear condensed juice

A processing technology and concentrated juice technology, which is applied in the field of Sydney concentrated juice processing technology, can solve problems such as production methods, achieve the effects of short production time, short production process, and extended membrane cleaning cycle

Inactive Publication Date: 2015-07-01
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the current public reports, the quality of the concentrated Sydney juice fails to meet the requirements of high-end customers and production needs. The main reason is the problem of the production method.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of processing technology of pear concentrated juice, its operation steps are:

[0022] (1) Enzyme elimination: select fresh and mature pears, remove the raw materials of rotten pests, clean the skin of pears, heat the whole pears in a boiling water bath for 3 minutes, and inactivate enzymes to obtain pears with inactivated enzymes;

[0023] (2) Juicing: Send the enzyme-inactivated Sydney pears into the squeezer, squeeze out the juice, and obtain the original juice of Sydney;

[0024] (3) Coarse filtration: first pass the original Sydney juice through a beater with a sieve diameter of 0.5 mm for beating and filtration, and then pass through a 400-mesh screen for secondary filtration to obtain coarsely filtered Sydney juice;

[0025] (4) Ceramic membrane ultrafiltration: The heated pear juice is clarified by ultrafiltration with a ceramic ultrafiltration membrane with a pore size of 0.05 μm. The process conditions are as follows: the transmembrane pressure differen...

Embodiment 2

[0029] A kind of processing technology of pear concentrated juice, its operation steps are:

[0030] (1) Enzyme elimination: select fresh and mature Sydney, remove the raw materials of rotten pests, clean the skin of the Sydney, heat the whole Sydney fruit in a boiling water bath for 5 minutes, and inactivate the enzyme to obtain the enzyme-inactivated Sydney;

[0031] (2) Juicing: Send the enzyme-inactivated Sydney pears into the squeezer, squeeze out the juice, and obtain the original juice of Sydney;

[0032] (3) Coarse filtration: first pass the original Sydney juice through a beater with a sieve diameter of 1.0 mm for beating and filtration, and then pass through a 300-mesh screen for secondary filtration to obtain coarsely filtered Sydney juice;

[0033] (4) Ceramic membrane ultrafiltration: The heated pear juice is clarified by ultrafiltration with a ceramic ultrafiltration membrane with a pore size of 0.10 μm. The process conditions are as follows: the transmembrane pr...

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PUM

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Abstract

The invention relates to a technical process of snow pear condensed juice. The snow pear condensed juice is processed by the following six steps: deactivating an enzyme; juicing; coarsely filtering; carrying out ultrafiltration by a ceramic membrane; concentrating in vacuum; and carrying high-temperature instantaneous sterilization by taking snow pears as a raw material. The snow pear condensed juice obtained by the invention is clear and transparent in color, strong in fragrance and sweet and tasty in flavor, the original flavor and nutritional components of the snow pears are maintained, and no precipitates are separated out and the turbidity is not generated in the storage period.

Description

technical field [0001] The invention relates to the technical field of fruit and vegetable juice processing, in particular to a processing technology of pear concentrated juice. technical background [0002] Sydney is a kind of fruit cultivated by Rosaceae plants such as white pear, sand pear, and Qiuzi pear. It is rich in juice, high in sugar content, and has a sweet taste, which is widely loved by people. And Sydney also has the effects of moistening lungs and clearing dryness, relieving cough and reducing phlegm, nourishing blood and strengthening muscles, lowering blood pressure, nourishing yin and clearing heat, etc., and is a high-quality raw material for producing beverages. At present, there are two main methods of making beverages from pear juice: one is to directly extract pear juice to make beverages; the other is to process pears into concentrated juice, and then use the concentrated juice to make beverages. Limited by resources and raw materials, it is impossib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L2/08A23L2/74
Inventor 不公告发明人
Owner GUANGXI UNIV
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