CN111227206A - Method for extracting fruit and vegetable juice powder - Google Patents

Method for extracting fruit and vegetable juice powder Download PDF

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Publication number
CN111227206A
CN111227206A CN202010113196.0A CN202010113196A CN111227206A CN 111227206 A CN111227206 A CN 111227206A CN 202010113196 A CN202010113196 A CN 202010113196A CN 111227206 A CN111227206 A CN 111227206A
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fruit
vegetable juice
moisture content
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extracted
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李建新
李树新
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Beijing Constant Technology Co Ltd
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Beijing Constant Technology Co Ltd
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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L19/00—Products from fruits or vegetables; Preparation or treatment thereof
    • A23L19/01—Instant products; Powders; Flakes; Granules
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/02—Food
    • G01N33/025—Fruits or vegetables

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Abstract

The invention provides a method for extracting fruit and vegetable juice powder, which comprises the following steps: crushing fruits and vegetables to be extracted to obtain fruit and vegetable juice of the fruits and vegetables to be extracted; filtering the fruit and vegetable juice, and freezing the filtered fruit and vegetable juice; vacuum freezing the fruit and vegetable juice after freezing treatment to change solid water in the fruit and vegetable juice into gaseous water; detecting the moisture content of the fruit and vegetable juice subjected to vacuum freezing treatment, and obtaining fruit and vegetable juice powder to be treated when the detected moisture content is lower than the preset moisture content; when the detected moisture content is not lower than the preset moisture content, continuing to execute the steps until the detected moisture content is lower than the preset moisture content; and (4) carrying out screen treatment on the fruit and vegetable juice powder to be treated to obtain the fruit and vegetable juice powder. The fruit and vegetable juice powder is obtained by extracting fruits and vegetables.

Description

Method for extracting fruit and vegetable juice powder
Technical Field
The invention relates to the technical field of fruit and vegetable powder production, in particular to a method for extracting fruit and vegetable juice powder.
Background
Modern people have fast pace of life, tension in working pressure and unbalanced dietary structure. High carbohydrate, high protein and high fat diets are out of standard, and insufficient ingestion of vegetables and fruits leads to high incidence of chronic diseases such as obesity, hypertension, diabetes, blood diseases and the like, and the sudden increase of sub-health people. Therefore, people need to supplement full food nutrition, vitamins, minerals, bioflavonoids and other substances needed by the body in time, accelerate the metabolism of the body, discharge excessive substance toxins which cannot be digested and absorbed by the body, and achieve the metabolic balance of the body so as to keep the body healthy. Therefore, people can supplement full food nutrition needed by the body in a large amount and extract the nutrients.
Disclosure of Invention
The invention provides a method for extracting fruit and vegetable juice powder, which is used for extracting fruits and vegetables to obtain the fruit and vegetable juice powder.
The embodiment of the invention provides a method for extracting fruit and vegetable juice powder, which comprises the following specific steps:
crushing the fruits and vegetables to be extracted to obtain fruit and vegetable juice of the fruits and vegetables to be extracted;
filtering the fruit and vegetable juice, and freezing the filtered fruit and vegetable juice;
step (3), performing vacuum freezing treatment on the frozen fruit and vegetable juice to change solid water in the fruit and vegetable juice into gaseous water;
step (4), detecting the moisture content of the fruit and vegetable juice subjected to vacuum freezing treatment, and obtaining fruit and vegetable juice powder to be treated when the detected moisture content is lower than a preset moisture content;
when the detected moisture content is not lower than the preset moisture content, continuing to execute the steps (3) - (4) until the detected moisture content is lower than the preset moisture content;
and (5) screening the fruit and vegetable juice powder to be treated to obtain the fruit and vegetable juice powder.
In one possible way of realisation,
the execution time of the step (3) is 35-45h, the fruit and vegetable juice after the freezing treatment is subjected to vacuum freezing treatment in the vacuum freezing and drying bin, and the environmental temperature of the vacuum freezing and drying bin is not more than 40 ℃.
In one possible way of realisation,
and (3) after the solid water in the fruit and vegetable juice is changed into gaseous water, pumping the gaseous water out of the vacuum freeze drying bin through pumping equipment.
In one possible way of realisation,
before crushing the fruits and vegetables to be extracted, carrying out first preset treatment on the fruits and vegetables to be extracted;
wherein the first preset processing includes:
and carrying out any one or more of cleaning, kernel removing and peeling treatment on the fruits and vegetables to be extracted.
In one possible way of realisation,
the moisture content range corresponding to the preset moisture content in the step (4) is 3% -8%.
In one possible way of realisation,
and (5) screening the fruit and vegetable juice powder to be treated by using a screen, wherein the mesh range of the adopted screen is 75-100 meshes.
In one possible way of realisation,
when the moisture content of the fruit and vegetable juice subjected to the vacuum freezing treatment in the step (4) is detected, the detection is carried out based on a moisture sensor and moisture detection equipment;
when the moisture content of the fruit and vegetable juice detected by the moisture sensor and the moisture detection equipment is not lower than the preset moisture content, continuously executing the steps (3) to (4) within the preset time,
after the preset time is exceeded, the detected fruit and vegetable juice with the moisture content not lower than that corresponding to the preset moisture content and subjected to vacuum freezing treatment is transmitted to a first transmission channel based on first transmission equipment, and unqualified fruit and vegetable juice powder to be treated is obtained;
otherwise, the fruit and vegetable juice subjected to vacuum freezing treatment and corresponding to the detected moisture content lower than the preset moisture content is transmitted to a second transmission channel based on second transmission equipment, and qualified fruit and vegetable juice powder to be treated is obtained.
In one possible way of realisation,
the preset time is set on the basis that the execution time duration of the step (3) is 35-45 h.
In one possible way of realisation,
in the step (4), detecting the moisture content of the fruit and vegetable juice subjected to the vacuum freezing treatment, and obtaining fruit and vegetable juice powder to be treated when the detected moisture content is lower than a preset moisture content; when the detected moisture content is not lower than the preset moisture content, continuing to execute the steps (3) - (4) until the detected moisture content is lower than the preset moisture content, wherein in order to avoid the difference of the moisture content of the fruit and vegetable juice at different parts, the extracted fruit and vegetable juice is just the part with the minimum moisture content, and the moisture content of the rest part is higher, so that the quality of the obtained fruit and vegetable juice powder to be processed is poor, and when the detected moisture content is lower than the preset moisture content, carrying out intelligent operation by utilizing the steps A7-A8;
step A7: carrying out intelligent inspection on the fruit and vegetable juice, wherein the inspection comprises the following steps:
a701, extracting the fruit and vegetable juice of the uppermost part of the n1 times, detecting the moisture content of the fruit and vegetable juice of the uppermost part, and storing the detection result as a vector X1;
a702, extracting the fruit and vegetable juice of the lowest part of the fruit and vegetable juice for n2 times, detecting the moisture content of the fruit and vegetable juice, and storing the detection result as a vector X2;
a703, calculating a difference value by using a formula (1);
Figure BDA0002390700680000041
wherein cy is the calculated difference, Σ X1 is the summation over all elements in vector X1, Σ X2 is the summation over all elements in vector X2, Σ X12To sum all elements of vector X1 squared, Σ X22To sum all the elements of vector X2 squared, the value of cy is compared to the values α -0.05, n-n 1+ n2 in the t-test table, i.e., to t0.05(n1+ n2) in comparison withcy is less than or equal to t0.05(n1+ n2), the difference value is valid, the difference is checked to be passed, the operation of the step A704 is continued, otherwise, the steps (3) to (4) are continued;
a704, carrying out depth inspection on the fruit and vegetable juice of the uppermost part of the fruit and vegetable juice and the fruit and vegetable juice of the lowermost part of the fruit and vegetable juice;
first, the total error is calculated using the formula (2)
Figure BDA0002390700680000042
Figure BDA0002390700680000043
Figure BDA0002390700680000044
Where KL is the overall error, S1 2Error of the uppermost part of the fruit and vegetable juice, S2 2The error of the lowest part of the fruit and vegetable juice,
Figure BDA0002390700680000051
to subtract all values in the vector X1
Figure BDA0002390700680000052
Then the square is calculated and then the sum is obtained,
Figure BDA0002390700680000053
to subtract all values in the vector X2
Figure BDA0002390700680000054
Then square and sum;
then, calculating a weight average value by using a formula (3);
Figure BDA0002390700680000055
wherein GKL is a weight mean value;
then, substituting the value into a formula (4) to obtain a depth test result;
Figure BDA0002390700680000056
k is the obtained depth test result, ln is the logarithm taking the natural constant e as the base, a preset chi distribution table is inquired,
finally, the K and chi distribution table
Figure BDA0002390700680000057
Comparing, when K is greater than or equal to
Figure BDA0002390700680000058
If the intelligent inspection is not passed, the steps (3) - (4) are continuously executed.
And A8, controlling to perform intelligent operation after the fruit and vegetable juice passes the intelligent inspection, and performing the step (5).
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of a method for extracting fruit and vegetable juice powder according to an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
The embodiment of the invention provides a method for extracting fruit and vegetable juice powder, which comprises the following specific steps:
crushing the fruits and vegetables to be extracted to obtain fruit and vegetable juice of the fruits and vegetables to be extracted;
filtering the fruit and vegetable juice, and freezing the filtered fruit and vegetable juice;
step (3), performing vacuum freezing treatment on the frozen fruit and vegetable juice to change solid water in the fruit and vegetable juice into gaseous water;
step (4), detecting the moisture content of the fruit and vegetable juice subjected to vacuum freezing treatment, and obtaining fruit and vegetable juice powder to be treated when the detected moisture content is lower than a preset moisture content;
when the detected moisture content is not lower than the preset moisture content, continuing to execute the steps (3) - (4) until the detected moisture content is lower than the preset moisture content;
and (5) screening the fruit and vegetable juice powder to be treated to obtain the fruit and vegetable juice powder.
The above-mentioned right fruit vegetables juice filters, is based on adopting and squeezes the equipment and go on.
The fruit and vegetable juice is filtered based on the adoption of a filtering device.
Preferably, the execution time of the step (3) is 35-45h, the fruit and vegetable juice after the freezing treatment is subjected to vacuum freezing treatment in the vacuum freezing and drying chamber, and the ambient temperature of the vacuum freezing and drying chamber does not exceed 40 ℃.
Preferably, in the step (3), after the solid water in the fruit and vegetable juice is changed into gaseous water, the gaseous water is extracted from the vacuum freeze drying bin through an extraction device.
Preferably, before the fruits and vegetables to be extracted are crushed, first preset treatment needs to be carried out on the fruits and vegetables to be extracted;
wherein the first preset processing includes:
and carrying out any one or more of cleaning, kernel removing and peeling treatment on the fruits and vegetables to be extracted.
Preferably, the moisture content range corresponding to the preset moisture content in the step (4) is 3% -8%.
Preferably, the fruit and vegetable juice powder to be treated is subjected to screen treatment in the step (5), and the mesh number of the adopted screen is 75-100 meshes.
The fruits and vegetables to be extracted are prepared into the fruit and vegetable powder.
The squeezing device may be, for example, a juicer or the like.
The filtering device can be a filtering funnel, for example, and aims to filter impurities in fruit and vegetable juice.
The preset temperature of the freezer is set to be-25 ℃, so that the fruit and vegetable juice is frozen into a solid state, and subsequent moisture is conveniently filtered.
The fruit and vegetable juice is characterized by containing much water and having a powdering rate of not more than 2%;
the fruit juice corresponding to the fruits is characterized by high sugar content and no more than 5% of powder forming rate.
After the fruit and vegetable juice of the fruits and vegetables to be extracted is obtained based on the step (2), the fruit and vegetable juice is frozen, so that the nutrition contained in the fruit and vegetable juice is not lost;
in the process of obtaining the fruit and vegetable juice powder, the fruit and vegetable juice powder is obtained in the environment of a vacuum freeze drying bin, the nutritional ingredients of the fruit and vegetable are retained to the maximum extent, and the content of vitamin and mineral substances contained in the corresponding fruit and vegetable juice powder can reach 10-50 times of that of equivalent food.
The fruit and vegetable juice powder extracted by the method has the advantages that the fruit and vegetable juice powder has balanced content proportion of various trace elements, minerals and vitamins and high content, and can be quickly absorbed by a body and quickly start or accelerate the metabolism of the body when taken with proper water.
The food extracted by the method can also be applied to rehabilitation treatment of various chronic degenerative diseases.
The obtained fruit and vegetable juice powder can be directly taken with water, and can also be added into nutritional products, health products and medicines for taking, and the fruit and vegetable juice powder has the advantage of effectively improving the absorption of the body to mineral substances and vitamins.
Freezing the filtered fruit and vegetable juice, for example, placing the filtered fruit and vegetable juice in a containing tray, and then placing the fruit and vegetable juice in a freezer, wherein the preset temperature range of the freezer is set to be-30 ℃ to-23 ℃;
and the freezing time of the filtered fruit and vegetable juice which is placed in the containing tray and the freezer in the freezer is not less than 4 h.
The beneficial effects of the above technical scheme are: and (5) extracting the fruits and the vegetables through the steps (1) to (5) to obtain fruit and vegetable juice powder.
The embodiment of the invention provides a method for extracting fruit and vegetable juice powder,
when the moisture content of the fruit and vegetable juice subjected to the vacuum freezing treatment in the step (4) is detected, the detection is carried out based on a moisture sensor and moisture detection equipment;
when the moisture content of the fruit and vegetable juice detected by the moisture sensor and the moisture detection equipment is not lower than the preset moisture content, continuously executing the steps (3) to (4) within the preset time,
after the preset time is exceeded, the detected fruit and vegetable juice with the moisture content not lower than that corresponding to the preset moisture content and subjected to vacuum freezing treatment is transmitted to a first transmission channel based on first transmission equipment, and unqualified fruit and vegetable juice powder to be treated is obtained;
otherwise, the fruit and vegetable juice subjected to vacuum freezing treatment and corresponding to the detected moisture content lower than the preset moisture content is transmitted to a second transmission channel based on second transmission equipment, and qualified fruit and vegetable juice powder to be treated is obtained.
Preferably, the preset time is set based on the execution time period of the step (3) being 35h-45 h.
The preset time is a set time after the step (3) is executed, solid water in the fruit and vegetable juice is subjected to vacuum freezing treatment in the vacuum freezing and drying bin to be changed into gaseous water, and the gaseous water is pumped out through the pumping equipment for 35-45 hours;
the preset time can be set manually.
The first transmission equipment and the first transmission channel as well as the second transmission equipment and the second transmission channel are arranged, so that the fruit and vegetable juice with the moisture content lower than 5% of the preset moisture content is classified, and unqualified fruit and vegetable juice powder is avoided.
And the above-mentioned fruit vegetables juice based on moisture sensor and moisture check out test set after to vacuum freezing handles detects, is whether in order to ensure the moisture content of fruit vegetables juice powder to satisfy the requirement.
The beneficial effects of the above technical scheme are: after the preset time is exceeded, the fruit and vegetable juice subjected to vacuum freezing treatment is detected based on the moisture sensor and the moisture detection equipment, and the fruit and vegetable juice subjected to vacuum freezing treatment is classified based on judgment.
The embodiment of the invention provides a method for extracting fruit and vegetable juice powder,
in the step (4), detecting the moisture content of the fruit and vegetable juice subjected to the vacuum freezing treatment, and obtaining fruit and vegetable juice powder to be treated when the detected moisture content is lower than a preset moisture content; when the detected moisture content is not lower than the preset moisture content, continuing to execute the steps (3) - (4) until the detected moisture content is lower than the preset moisture content, wherein in order to avoid the difference of the moisture content of the fruit and vegetable juice at different parts, the extracted fruit and vegetable juice is just the part with the minimum moisture content, and the moisture content of the rest part is higher, so that the quality of the obtained fruit and vegetable juice powder to be processed is poor, and when the detected moisture content is lower than the preset moisture content, carrying out intelligent operation by utilizing the steps A7-A8;
step A7: carrying out intelligent inspection on the fruit and vegetable juice, wherein the inspection comprises the following steps:
a701, extracting the fruit and vegetable juice of the uppermost part of the n1 times, detecting the moisture content of the fruit and vegetable juice of the uppermost part, and storing the detection result as a vector X1;
a702, extracting the fruit and vegetable juice of the lowest part of the fruit and vegetable juice for n2 times, detecting the moisture content of the fruit and vegetable juice, and storing the detection result as a vector X2;
when the fruit and vegetable juice is extracted for detecting the moisture content, the minimum amount of the fruit and vegetable juice is selected every time, wherein the minimum amount is not more than 1/((n2+ n1) × 100) of the total amount of the fruit and vegetable juice, namely the total amount of the fruit and vegetable juice for detection is not more than one percent of the total amount of the fruit and vegetable juice.
A703, calculating a difference value by using a formula (1);
Figure BDA0002390700680000101
wherein cy is the calculated difference, Σ X1 is the summation over all elements in vector X1, Σ X2 is the summation over all elements in vector X2, Σ X12To sum all elements of vector X1 squared, Σ X22To sum all the elements of vector X2 squared, the value of cy is compared to the values α -0.05, n-n 1+ n2 in the t-test table, i.e., to t0.05(n1+ n2) when cy is less than or equal to t0.05(n1+ n2), the difference value is valid, the difference is checked to be passed, the operation of the step A704 is continued, otherwise, the steps (3) to (4) are continued;
by using the formula (1), whether the value of the vector X1 is different from the value of the vector X2 can be judged, when the difference does not exist, the upper part of the fruit and vegetable juice and the lower part of the fruit and vegetable juice are uniform, and when the moisture content of the fruit and vegetable juice is detected, the detected moisture result is more scientific.
A704, carrying out depth inspection on the fruit and vegetable juice of the uppermost part of the fruit and vegetable juice and the fruit and vegetable juice of the lowermost part of the fruit and vegetable juice;
first, the total error is calculated using the formula (2)
Figure BDA0002390700680000111
Figure BDA0002390700680000112
Figure BDA0002390700680000113
Where KL is the overall error, S1 2Error of the uppermost part of the fruit and vegetable juice, S2 2The error of the lowest part of the fruit and vegetable juice,
Figure BDA0002390700680000114
to subtract all values in the vector X1
Figure BDA0002390700680000115
Then the square is calculated and then the sum is obtained,
Figure BDA0002390700680000116
to subtract all values in the vector X2
Figure BDA0002390700680000117
Then square and sum;
the error of the uppermost part of the fruit and vegetable juice, the error of the lowermost part of the fruit and vegetable juice and the error of the total moisture content can be obtained by using the formula (2), so that whether the moisture content reaches the standard or not can be conveniently obtained later.
Then, calculating a weight average value by using a formula (3);
Figure BDA0002390700680000121
wherein GKL is a weight mean value;
by using the formula (3), different error weights can be given according to the fruit and vegetable juice at the uppermost part of the fruit and vegetable juice and the fruit and vegetable juice at the lowermost part of the fruit and vegetable juice under the condition that different samples are respectively extracted, so that the weights are related to the number of samples, and the error weights are more reliable.
Then, substituting the value into a formula (4) to obtain a depth test result;
Figure BDA0002390700680000122
k is the obtained depth test result, ln is the logarithm taking the natural constant e as the base, a preset chi distribution table is inquired,
finally, the K and chi distribution table
Figure BDA0002390700680000123
Comparing, when K is greater than or equal to
Figure BDA0002390700680000124
If the intelligent inspection is not passed, the steps (3) - (4) are continuously executed.
And A8, controlling to perform intelligent operation after the fruit and vegetable juice passes the intelligent inspection, and performing the step (5).
Has the advantages that: (1) by the aid of the technology, the moisture content of the fruit and vegetable juice can be detected without error of detection results due to uneven distribution;
(2) after passing the inspection, the fruit and vegetable juice powder to be processed obtained by the technology is high-quality fruit and vegetable juice powder with less water;
(3) in the process, by using a formula (1), whether the value of the vector X1 is different from the value of the vector X2 can be judged, when the difference does not exist, the upper part of the fruit and vegetable juice and the lower part of the fruit and vegetable juice are uniform, and when the moisture content of the fruit and vegetable juice is detected, the detected moisture result is more scientific.
(4) In the process, the error of the uppermost part of the fruit and vegetable juice, the error of the lowermost part of the fruit and vegetable juice and the error of the total moisture content can be obtained by using the formula (2), so that whether the moisture content reaches the standard or not can be conveniently obtained later.
(5) In the process, different error weights can be given according to the fruit and vegetable juice at the uppermost part of the fruit and vegetable juice and the fruit and vegetable juice at the lowermost part of the fruit and vegetable juice by using the formula (3) under the condition that different samples are respectively extracted, so that the weights are related to the number of samples, and the error weights are more credible.
(6) The processes are all computer automatic operations, and the workload is greatly reduced.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (9)

1. The extraction method of the fruit and vegetable juice powder is characterized by comprising the following specific steps:
crushing the fruits and vegetables to be extracted to obtain fruit and vegetable juice of the fruits and vegetables to be extracted;
filtering the fruit and vegetable juice, and freezing the filtered fruit and vegetable juice;
step (3), performing vacuum freezing treatment on the frozen fruit and vegetable juice to change solid water in the fruit and vegetable juice into gaseous water;
step (4), detecting the moisture content of the fruit and vegetable juice subjected to vacuum freezing treatment, and obtaining fruit and vegetable juice powder to be treated when the detected moisture content is lower than a preset moisture content;
when the detected moisture content is not lower than the preset moisture content, continuing to execute the steps (3) - (4) until the detected moisture content is lower than the preset moisture content;
and (5) screening the fruit and vegetable juice powder to be treated to obtain the fruit and vegetable juice powder.
2. The method of claim 1, wherein the fruit juice powder is extracted from fruit and vegetable juice,
the execution time of the step (3) is 35-45h, the fruit and vegetable juice after the freezing treatment is subjected to vacuum freezing treatment in the vacuum freezing and drying bin, and the environmental temperature of the vacuum freezing and drying bin is not more than 40 ℃.
3. The method of claim 2, wherein the fruit juice powder is extracted from fruit and vegetable juice,
and (3) after the solid water in the fruit and vegetable juice is changed into gaseous water, pumping the gaseous water out of the vacuum freeze drying bin through pumping equipment.
4. The method of claim 1, wherein the fruit juice powder is extracted from fruit and vegetable juice,
before crushing the fruits and vegetables to be extracted, carrying out first preset treatment on the fruits and vegetables to be extracted;
wherein the first preset processing includes:
and carrying out any one or more of cleaning, kernel removing and peeling treatment on the fruits and vegetables to be extracted.
5. The method of claim 1, wherein the fruit juice powder is extracted from fruit and vegetable juice,
the moisture content range corresponding to the preset moisture content in the step (4) is 3% -8%.
6. The method of claim 1, wherein the fruit juice powder is extracted from fruit and vegetable juice,
and (5) screening the fruit and vegetable juice powder to be treated by using a screen, wherein the mesh range of the adopted screen is 75-100 meshes.
7. The method of claim 1, wherein the fruit juice powder is extracted from fruit and vegetable juice,
when the moisture content of the fruit and vegetable juice subjected to the vacuum freezing treatment in the step (4) is detected, the detection is carried out based on a moisture sensor and moisture detection equipment;
when the moisture content of the fruit and vegetable juice detected by the moisture sensor and the moisture detection equipment is not lower than the preset moisture content, continuously executing the steps (3) to (4) within the preset time,
after the preset time is exceeded, the detected fruit and vegetable juice with the moisture content not lower than that corresponding to the preset moisture content and subjected to vacuum freezing treatment is transmitted to a first transmission channel based on first transmission equipment, and unqualified fruit and vegetable juice powder to be treated is obtained;
otherwise, the fruit and vegetable juice subjected to vacuum freezing treatment and corresponding to the detected moisture content lower than the preset moisture content is transmitted to a second transmission channel based on second transmission equipment, and qualified fruit and vegetable juice powder to be treated is obtained.
8. The method of claim 7, wherein the fruit juice powder is extracted from fruit and vegetable juice,
the preset time is set on the basis that the execution time duration of the step (3) is 35-45 h.
9. The method of claim 1, wherein the fruit juice powder is extracted from fruit and vegetable juice,
in the step (4), detecting the moisture content of the fruit and vegetable juice subjected to the vacuum freezing treatment, and obtaining fruit and vegetable juice powder to be treated when the detected moisture content is lower than a preset moisture content; when the detected moisture content is not lower than the preset moisture content, continuing to execute the steps (3) - (4) until the detected moisture content is lower than the preset moisture content, wherein in order to avoid the difference of the moisture content of the fruit and vegetable juice at different parts, the extracted fruit and vegetable juice is just the part with the minimum moisture content, and the moisture content of the rest part is higher, so that the quality of the obtained fruit and vegetable juice powder to be processed is poor, and when the detected moisture content is lower than the preset moisture content, carrying out intelligent operation by utilizing the steps A7-A8;
step A7: carrying out intelligent inspection on the fruit and vegetable juice, wherein the inspection comprises the following steps:
a701, extracting the fruit and vegetable juice of the uppermost part of the n1 times, detecting the moisture content of the fruit and vegetable juice of the uppermost part, and storing the detection result as a vector X1;
a702, extracting the fruit and vegetable juice of the lowest part of the fruit and vegetable juice for n2 times, detecting the moisture content of the fruit and vegetable juice, and storing the detection result as a vector X2;
a703, calculating a difference value by using a formula (1);
Figure FDA0002390700670000031
wherein cy is the calculated difference, Σ X1 is the summation over all elements in vector X1, Σ X2 is the summation over all elements in vector X2, Σ X12To sum all elements of vector X1 squared, Σ X22To sum all the elements of vector X2 squared, the value of cy is compared to the values α -0.05, n-n 1+ n2 in the t-test table, i.e., to t0.05(n1+ n2) when cy is less than or equal to t0.05(n1+ n2), the difference value is valid, the difference is checked to be passed, the operation of the step A704 is continued, otherwise, the steps (3) to (4) are continued;
a704, carrying out depth inspection on the fruit and vegetable juice of the uppermost part of the fruit and vegetable juice and the fruit and vegetable juice of the lowermost part of the fruit and vegetable juice;
first, the total error is calculated using the formula (2)
Figure FDA0002390700670000041
Figure FDA0002390700670000042
Figure FDA0002390700670000043
Where KL is the overall error, S1 2Error of the uppermost part of the fruit and vegetable juice, S2 2The error of the lowest part of the fruit and vegetable juice,
Figure FDA0002390700670000044
to subtract all values in the vector X1
Figure FDA0002390700670000045
Then the square is calculated and then the sum is obtained,
Figure FDA0002390700670000046
to subtract all values in the vector X2
Figure FDA0002390700670000047
Then square and sum;
then, calculating a weight average value by using a formula (3);
Figure FDA0002390700670000048
wherein GKL is a weight mean value;
then, substituting the value into a formula (4) to obtain a depth test result;
Figure FDA0002390700670000049
k is the obtained depth test result, ln is the logarithm taking the natural constant e as the base, a preset chi distribution table is inquired,
finally, the K and chi distribution table
Figure FDA0002390700670000051
Comparing, when K is greater than or equal to
Figure FDA0002390700670000052
If the intelligent inspection is not passed, continuing to execute the steps (3) - (4);
and A8, controlling to perform intelligent operation after the fruit and vegetable juice passes the intelligent inspection, and performing the step (5).
CN202010113196.0A 2020-02-24 2020-02-24 Method for extracting fruit and vegetable juice powder Pending CN111227206A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201387412Y (en) * 2009-03-24 2010-01-20 山西农业大学 Water content online monitoring device during freeze drying process of fresh products
CN102578511A (en) * 2012-03-31 2012-07-18 谢振文 Vacuum freeze-dried lemon juice powder and preparation method thereof
CN105341610A (en) * 2015-10-11 2016-02-24 青海泰柏特生物科技有限公司 Vacuum freeze drying fresh lycium ruthenicum squeezed juice powder and preparation method thereof
CN105942323A (en) * 2016-05-11 2016-09-21 冯辉军 Preparation method of ultra-micro wall-broken freeze-dried instant fruit and vegetable powder
CN108522933A (en) * 2018-05-04 2018-09-14 刘文伟 The processing method of vacuum freeze drying melon and fruit solid beverage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201387412Y (en) * 2009-03-24 2010-01-20 山西农业大学 Water content online monitoring device during freeze drying process of fresh products
CN102578511A (en) * 2012-03-31 2012-07-18 谢振文 Vacuum freeze-dried lemon juice powder and preparation method thereof
CN105341610A (en) * 2015-10-11 2016-02-24 青海泰柏特生物科技有限公司 Vacuum freeze drying fresh lycium ruthenicum squeezed juice powder and preparation method thereof
CN105942323A (en) * 2016-05-11 2016-09-21 冯辉军 Preparation method of ultra-micro wall-broken freeze-dried instant fruit and vegetable powder
CN108522933A (en) * 2018-05-04 2018-09-14 刘文伟 The processing method of vacuum freeze drying melon and fruit solid beverage

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