Processing technology for spray evaporation type fruit and vegetable juice concentrate

A processing technology and concentrated juice technology, which is applied in the field of spray evaporation concentrated fruit and vegetable juice processing technology, can solve the problems of browning, loss of flavor substances and nutrients, and deterioration of fruit and vegetable juices in the process of processing and storage, and achieve the production process. Short, avoid the loss of nutrients and flavor substances, the effect of short production time

Inactive Publication Date: 2015-11-11
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the present invention provides a spray evaporation type fruit and vegetable concentrated juice processing technology, which solves the problems of large loss of flavor substances and nutritional components in the production process of fruit and vegetable concentrated juice, browning in the process of processing and storage, and enzymatic hydrolysis of fruits and vegetables. Technical problems with juice spoilage

Method used

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Effect test

Embodiment 1

[0023] A processing technology of spray evaporation type fruit and vegetable concentrated juice, comprising the following specific steps:

[0024] (1) Enzyme inactivation: select fresh and ripe fruit and vegetable raw materials, clean the fruit and vegetable raw materials with clean water, and then heat the fruit and vegetable raw materials to inactivate enzymes to obtain enzyme inactivated fruit and vegetable raw materials;

[0025] (2) Juicing: send the enzyme-inactivated fruit and vegetable raw materials into a press machine, squeeze out the juice, and obtain the enzyme-inactivated fruit and vegetable juice;

[0026] (3) Coarse filtration: filter the enzyme-inactivated fruit and vegetable juice through a decanter centrifuge with a sieve aperture of 100 μm to obtain the coarsely filtered fruit and vegetable juice;

[0027] (4) Ceramic membrane ultrafiltration: use a ceramic ultrafiltration membrane with a pore size of 0.05 μm to perform ultrafiltration and clarification on t...

Embodiment 2

[0036] A processing technology of spray evaporation type fruit and vegetable concentrated juice, comprising the following specific steps:

[0037] (1) Enzyme inactivation: select fresh and ripe fruit and vegetable raw materials, clean the fruit and vegetable raw materials with clean water, and then heat the fruit and vegetable raw materials to inactivate enzymes to obtain enzyme inactivated fruit and vegetable raw materials;

[0038] (2) Juicing: send the enzyme-inactivated fruit and vegetable raw materials into a press machine, squeeze out the juice, and obtain the enzyme-inactivated fruit and vegetable juice;

[0039] (3) Coarse filtration: filter the enzyme-inactivated fruit and vegetable juice through a decanter centrifuge with a sieve aperture of 150 μm to obtain the coarsely filtered fruit and vegetable juice;

[0040] (4) Ceramic membrane ultrafiltration: use a ceramic ultrafiltration membrane with a pore size of 0.10 μm to perform ultrafiltration and clarification on t...

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Abstract

A processing technology for spray evaporation type fruit and vegetable juice concentrate comprises the following steps: (1) enzyme deactivation; (2) juice squeezing; (3) rough filtration; (4) ultrafiltration through a ceramic membrane; (5) concentration: a spray dryer is used, fruit and vegetable clear juice is sprayed to vaporific fruit and vegetable liquid beads through a high-speed centrifugation mistorizer, meanwhile, hot air is introduced to a drying room to enable the vaporific fruit and vegetable liquid beads to be in contact with hot air and evaporated, vaporific fruit and vegetable liquid beads which are not completely evaporated collect together to become spray evaporation type fruit and vegetable juice concentrate to flow out from the bottom of the spray dryer, and waste gas is exhausted by a draught fan; (6) sterilization through a sterile filter membrane. The fruit and vegetable juice concentrate is clear and transparent in color and sweet and delicious in taste, maintains the original flavor and nutritional ingredients of fruits and vegetables better, and is free of precipitation and turbidity at the storage period.

Description

technical field [0001] The invention relates to the technical field of fruit and vegetable juice processing, in particular to a spray evaporation type fruit and vegetable concentrated juice processing technology. technical background [0002] Concentrated fruit and vegetable juice is made by squeezing fruits and vegetables out of juice and then evaporating part of the water by vacuum evaporation and concentration. Concentrated fruit and vegetable juices can be used as raw materials for beverages, and can also be diluted with water and drunk directly. However, there are still many problems in the processing of concentrated fruit and vegetable juices: (1) the clarification process is old, the clarification effect is poor, and the phenomenon of post-turbidity easily occurs during the transportation and storage of concentrated fruit and vegetable juices; method, due to the effect of high temperature and mist entrainment, it is easy to cause the loss of flavor substances and nut...

Claims

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Application Information

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IPC IPC(8): A23L2/08
CPCA23L2/087
Inventor 不公告发明人
Owner GUANGXI UNIV
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