Processing method of concentrated juice

A technology for concentrating fruit juice and processing method, which is applied in the functions of food ingredients, food ingredients containing natural extracts, food science, etc., and can solve the problems of high equipment investment and operation cost, complicated process flow and operation, and difficulty in separating and clarifying fruit juice. , to achieve the effect of low investment and operating costs, simple process and operation, maintaining sensory quality and stability

Pending Publication Date: 2020-02-04
绵阳市安州区开创农业开发有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the preparation of concentrated fruit juice must go through multiple steps such as enzymatic hydrolysis, juicing, filtration, clarification, and concentration after the fruit is crushed and beaten. Each process and step is completed in different equipment, requiring a lot of equipment, te

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] Example 1

[0025] A processing method of concentrated apple juice includes the following steps:

[0026] (1) Clean fresh apples after picking, and then squeeze the juice to obtain apple pulp. Add 0.05% of the total amount of pectinase and cellulase of the apple pulp to the apple pulp, and enzymatically hydrolyze at 25°C for 60 minutes; among them, pectinase The mass ratio to cellulase is 5:1;

[0027] (2) Filter the enzymatically hydrolyzed fruit pulp of step (1) to obtain the filter residue and the first filtrate, add water to the obtained filter residue, and ultrasonically extract for 20 min at 40°C and ultrasonic power of 80W, and filter to obtain the second filtrate, which is used in combination with the first filtrate 200-300 mesh sieve filter to remove impurities with a particle size greater than 70μm to obtain a coarse filtrate;

[0028] (3) The coarse filtrate obtained in step (1) is finely filtered with a nanofiltration membrane at a pressure of 1 MPa and a temperatu...

Example Embodiment

[0031] Example 2

[0032] A processing method of concentrated orange juice includes the following steps:

[0033] (1) After picking fresh oranges, they are washed and peeled, and the juice is processed to obtain the pulp. Add 0.06% of the total pulp of pectinase and cellulase to the pulp, and enzymatically hydrolyze at 30°C for 50 minutes; The mass ratio of pectinase and cellulase is 6:1;

[0034] (2) Filter the enzymatically hydrolyzed fruit pulp of step (1) to obtain the filter residue and the first filtrate, add water to the obtained filter residue, and ultrasonically extract at 42°C and ultrasonic power of 90W for 18 minutes, and filter to obtain the second filtrate, which is used in combination with the first filtrate 200-300 mesh sieve filter to remove impurities with a particle size greater than 70μm to obtain a coarse filtrate;

[0035] (3) The coarse filtrate obtained in step (1) is finely filtered with a nanofiltration membrane at a pressure of 1.5 MPa and a temperature of ...

Example Embodiment

[0038] Example 3

[0039] A processing method of concentrated kiwi juice includes the following steps:

[0040] (1) The fresh kiwi fruit is picked and cleaned and peeled, and the juice is processed to obtain the fruit pulp. Add 0.08% of the total fruit pulp pectinase and cellulase to the fruit pulp, and enzymatically hydrolyze the fruit at 35°C for 40 minutes; The mass ratio of pectinase and cellulase is 5:1;

[0041] (2) Filter the enzymatically hydrolyzed fruit pulp of step (1) to obtain the filter residue and the first filtrate, add water to the obtained filter residue, and extract the second filtrate by ultrasonic extraction at 45° C. and ultrasonic power of 100 W for 15 minutes, and filter to obtain the second filtrate, which is combined with the first filtrate 200-300 mesh sieve filter to remove impurities with a particle size greater than 70μm to obtain a coarse filtrate;

[0042] (3) The coarse filtrate obtained in step (1) is finely filtered with a nanofiltration membrane at...

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Abstract

The invention belongs to the technical field of juice concentration and extraction, and discloses a processing method of concentrated juice. The processing method comprises the following steps: (1) juicing fresh fruits, and adding pectinase and cellulase for enzymolysis; (2) filtering enzymolysis pulp to obtain filter residues and a first filtrate, adding water to the filter residues, performing ultrasonic extraction and filtration to obtain a second filtrate, combining the second filtrate with the first filtrate, and performing filtration to obtain a coarse filtrate; (3) carrying out refinedfiltration on the coarse filtrate by using a nanofiltration membrane, and carrying out ultrafiltration treatment on the filtrate subjected to refined filtration by using a ceramic ultrafiltration membrane to obtain clarified juice; (4) concentrating the obtained clarified juice by using a reverse osmosis membrane to obtain concentrated juice; and (5) adding a stabilizer to the concentrated juice,fully stirring and uniformly mixing the concentrated juice, filling and sealing the uniformly mixed concentrated juice, and carrying out ultrahigh-pressure sterilization treatment and cooling to obtain the concentrated juice. The concentrated juice prepared by the method is fragrant and strong, can well retain nutritional ingredients and taste of the juice, and is stable in quality, simple and convenient in technological process and operation and low in investment and operation cost.

Description

technical field [0001] The invention belongs to the technical field of fruit juice concentration and extraction, and relates to a processing method of concentrated fruit juice. Background technique [0002] Fruit juice is the fruit juice that is selected, cleaned and squeezed out of fresh fruits. It is rich in vitamins, minerals, carbohydrates and dietary fiber. It is the most nutritious part of the fruit and is easily absorbed by the human body. It is close to For fresh fruit, it is known as "liquid fruit". Processing fruit into concentrated juice can not only reduce the volume occupied by the juice to facilitate storage and transportation, but also play a bactericidal effect during the concentration process and improve the storage stability of the juice. With the improvement of people's living standards year by year, people's dietary structure is gradually changing. Not only the demand for fruit juice has increased significantly, but also higher requirements have been put...

Claims

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Application Information

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IPC IPC(8): A23L2/04A23L2/06A23L2/74A23L2/52A23L2/84A23L33/105A23L2/42
CPCA23L2/04A23L2/06A23L2/74A23L2/52A23L2/84A23L33/105A23L2/42A23V2002/00A23V2200/30A23V2250/21A23V2250/5066
Inventor 姜华
Owner 绵阳市安州区开创农业开发有限责任公司
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