CN217351230U

CN217351230U - Redox extraction system

Info

Publication number: CN217351230U
Application number: CN202122305239.8U
Authority: CN
Inventors: 宋宏臣; 仲晓晴; 倪周娜; 王建明; 陈顺权
Original assignee: Guangzhou Institute Of Advanced Technology
Current assignee: Guangzhou Institute Of Advanced Technology
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-09-02
Anticipated expiration: 2031-09-23

Abstract

The utility model relates to a natural product separation technology field, concretely relates to tomatidine extraction system. The tomatidine extraction system comprises a crushing unit, a leaching unit, a first filtering unit, a precipitation unit, a second filtering unit, a dissolving unit, a membrane filtering unit and an evaporation unit which are connected in sequence; the first filtering unit is also connected with a composting unit; the evaporation unit is also connected with the dissolution unit. The utility model has the advantages of convenient operation, compact structure, low energy consumption and the like, and greatly improves the concentration efficiency of the tomatidine extraction. The utility model directly uses the filter residue filtered by the first filtering unit in the composting unit to produce the biological fertilizer, thereby improving the resource utilization rate; the utility model discloses well evaporation unit still links to each other with dissolving the unit, with the solvent reuse of evaporation in dissolving the unit, saves the cost.

Description

Redox extraction system

Technical Field

The utility model relates to a natural product separation technology field, concretely relates to extraction system of tomatidine.

Background

The molecular formula of the tomatidine is C ₂₇ H ₄₅ NO ₂ The water soluble organic silicon compound is easy to dissolve in ethanol, methanol, ethyl acetate and propylene glycol, is almost insoluble in water, ether and petroleum ether, is relatively stable in an alkaline environment, and is easy to hydrolyze in an acidic environment. The tomatidine has high content in tomato plants, is a secondary metabolite in the growth process of tomatoes, can inhibit the growth of fungi and bacteria, and can resist virus and insect invasion.

At present, a large amount of waste tomato branches and leaves are produced after the tomatoes are harvested, the treatment mode mainly comprises landfill and composting, time and labor are consumed, and the resource utilization rate is low. The tomatidine has good biological activity and can be applied to the technical fields of medicine, agricultural pest control and the like, so that the tomatidine extracted from the waste tomato branches and leaves has great market demand and wide development prospect. In the prior art, the method for extracting and utilizing the effective components of the tomato leaves is less, and the tomato alkali extraction and concentration system is more few and less.

Chinese invention patent CN104561220A discloses a method for preparing tomatidine by hydrolyzing tomato branches and leaves with cellulase, which comprises the following process steps: drying fresh tomato branches and leaves in the shade, crushing, soaking for 24-72h in acid water with the pH value of 1-3, collecting acid water solution, filtering, adjusting the pH value to 4-5 by using buffer salt, adding cellulase for hydrolysis, controlling the hydrolysis temperature at 30-40 ℃, hydrolyzing for 8-24h, adding an organic solvent into hydrolysate for extraction, recovering the organic solvent to obtain a crude product of tomatidine, and recrystallizing the crude product by using the organic solvent to obtain a tomatidine product with the purity of more than 95%. However, the method is complex to operate and not beneficial to popularization, and the process needs to use organic solvent for extraction, so that the environment is easily polluted.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to provide a system for extracting tomatidine. Through the combination of the leaching unit, the precipitation unit, the membrane filtration unit and the evaporation unit, the use of a large amount of toxic organic reagents is avoided, the traditional extraction process is replaced, the operation is simplified, the cost is reduced, the efficiency is improved, and the process time is shortened.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

a tomatidine extraction system comprises a crushing unit, a leaching unit, a first filtering unit, a precipitation unit, a second filtering unit, a dissolving unit, a membrane filtering unit and an evaporation unit which are sequentially connected; the first filtering unit is also connected with a composting unit; the evaporation unit is also connected with the dissolution unit.

Further, in above-mentioned tomatidine extraction system, still include the third filter unit, the third filter unit is connected with dissolving unit and membrane filter unit respectively.

Further, in above-mentioned tomatidine extraction system, still include drying unit, drying unit is connected with the evaporation unit.

Further, in the above tomato alkali extraction system, the membrane filtration unit comprises an ultrafiltration unit and a nanofiltration unit which are connected in sequence, the ultrafiltration unit is connected with the third filtration unit, and the nanofiltration unit is connected with the drying unit.

Further, in the above system for extracting tomatidine, the crushing unit is a crusher.

Further, in the above system, the leaching unit is a leaching tank filled with an acid solution, the upper part of the leaching tank is provided with a feed inlet, and the lower part of the leaching tank is provided with a liquid outlet.

Further, in the above system for extracting tomato alkali, the first filtering unit, the second filtering unit and the third filtering unit are filter paper or nylon filter screens.

Further, in the above system for extracting tomato alkali, the precipitation unit is a precipitation tank filled with an alkali solution.

Further, in the above system for extracting tomatidine, the dissolving unit is a tank filled with ethanol solution.

Further, in the above system for extracting tomato alkali, the ultrafiltration unit is a solution separation device using ultrafiltration membrane filaments as a filter medium and pressure difference between two sides of the membrane as a driving force; the nanofiltration unit is a solution separation device which takes a nanofiltration membrane as a filter medium and takes the pressure difference between two sides of the membrane as a driving force.

Further, in the above system for extracting tomato alkali, the evaporation unit is a rotary evaporator.

Further, in the above system for extracting tomato alkali, the drying unit is a vacuum drying oven.

Further, in the above tomato alkali extraction system, the composting unit is a composting fermentation tower.

The utility model has the advantages that:

the utility model discloses a tomatidine extraction system includes membrane filtration unit, has combined the membrane filtration separation technique of ultrafiltration and nanofiltration, has advantages such as convenient operation, compact structure, energy consumption low to greatly improved tomatidine and extracted concentration efficiency. The utility model directly uses the filter residue filtered by the first filtering unit in the composting unit to produce the biological fertilizer, thereby improving the resource utilization rate; the utility model discloses well evaporation unit still links to each other with dissolving the unit, with the solvent reuse of evaporation in dissolving the unit, saves the cost.

Drawings

FIG. 1 is a schematic diagram of a tomatidine extraction system according to embodiment 1 of the present invention;

fig. 2 is a schematic view of the lycopersicin extraction system in embodiment 2 of the present invention.

Reference numerals are as follows: 1-crushing unit, 2-leaching unit, 3-first filtering unit, 4-precipitation unit, 5-second filtering unit, 6-dissolving unit, 7-membrane filtering unit, 71-ultrafiltration unit, 72-nanofiltration unit, 8-evaporation unit, 9-composting unit, 10-third filtering unit and 11-drying unit.

Detailed Description

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the present invention will be further described with reference to the specific embodiments and the accompanying drawings, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without creative efforts.

It is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "top", "inner", and the like are used in the orientations and positional relationships indicated in the drawings, and are used for convenience in describing and simplifying the present invention, but do not indicate or imply that the referenced units or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

The terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "a group" means two or more.

Example 1

As shown in fig. 1, a tomatidine extraction system comprises a crushing unit 1, a leaching unit 2, a first filtering unit 3, a precipitation unit 4, a second filtering unit 5, a dissolving unit 6, a membrane filtering unit 7 and an evaporation unit 8 which are connected in sequence; the evaporation unit 8 is also connected with the dissolving unit 6; the tomatidine extraction system also comprises a composting unit 9, wherein the composting unit 9 is connected with the first filtering unit; the tomato alkali extraction system also comprises a third filtering unit 10, wherein the third filtering unit 10 is arranged between the dissolving unit 6 and the membrane filtering unit 7 and is respectively connected with the dissolving unit and the membrane filtering unit. The membrane filtration unit 7 comprises an ultrafiltration unit 71 and a nanofiltration unit 72 which are connected in sequence, the ultrafiltration unit 71 is connected with the third filtration unit 10, and the nanofiltration unit 72 is connected with the evaporation unit 8.

The operating process of the tomatidine extraction system is as follows:

placing fresh tomato branches and leaves in the crushing unit 1, and placing the fresh tomato branches and leaves in the crushing unit 1Pulverizing into powder with area size of 1mm ² Left and right fragments; placing the crushed tomato branches and leaves in a leaching unit 2 containing acetic acid water solution, and leaching the tomatidine in the leaching unit 2; after leaching is finished, filtering leaching liquor in a first filtering unit 3, feeding the filtered leaching liquor into a precipitation unit 4 filled with an alkali solution, and feeding filter residues obtained by separation into a composting unit 9 for producing a biological fertilizer; after the leaching liquor is precipitated by the precipitation unit 4, the leaching liquor is separated in the second filtering unit 5, the precipitate obtained by separation is a crude tomatidine product, the crude tomatidine product is dissolved again in the dissolving unit 6 containing an ethanol water solution to obtain a tomatidine feed liquid, and the obtained tomatidine feed liquid is concentrated and separated by the third filtering unit 10, the ultrafiltration unit 71 and the nanofiltration unit 72 in sequence to obtain a tomatidine concentrated solution. And evaporating the tomatidine concentrated solution by an evaporation unit 8 to obtain a tomatidine product.

Preferably, the solvent evaporated in the evaporation unit 8 is re-introduced into the dissolution unit 6 to achieve full utilization of the solvent.

Example 2

As shown in fig. 2, a tomatidine extraction system comprises a crushing unit 1, a leaching unit 2, a first filtering unit 3, a precipitation unit 4, a second filtering unit 5, a dissolving unit 6, a membrane filtering unit 7 and an evaporation unit 8 which are connected in sequence; the evaporation unit 8 is also connected with the dissolving unit 6; the tomatidine extraction system also comprises a composting unit 9, wherein the composting unit 9 is connected with the first filtering unit; the tomato alkali extraction system also comprises a third filtering unit 10, wherein the third filtering unit 10 is arranged between the dissolving unit 6 and the membrane filtering unit 7 and is respectively connected with the dissolving unit and the membrane filtering unit. The membrane filtration unit 7 comprises an ultrafiltration unit 71 and a nanofiltration unit 72 which are connected in sequence, wherein the ultrafiltration unit 71 is connected with the third filtration unit 10, and the nanofiltration unit 72 is connected with the evaporation unit 8. The tomato alkali extraction system further comprises a drying unit 11, wherein the drying unit 11 is connected with the evaporation unit 8.

The operating process of the tomatidine extraction system is as follows:

placing fresh tomato branches and leaves in the crushing unit 1, and crushing the tomato branches and leaves into powder with the area size of 1mm ² (left and right)The pieces of (a); placing the crushed tomato branches and leaves in a leaching unit 2 containing acetic acid water solution, and leaching the tomatidine in the leaching unit 2; after leaching, filtering the leaching liquor in a first filtering unit 3, feeding the filtered leaching liquor into a precipitation unit 4 filled with an alkali solution, and feeding the separated filter residue into a composting unit 9 for producing a biological fertilizer; after the leaching liquor is precipitated by the precipitation unit 4, separating the leaching liquor in the second filtering unit 5, wherein the precipitate obtained by separation is a crude tomatidine product, re-dissolving the crude tomatidine product in the dissolving unit 6 containing an ethanol water solution to obtain a tomatidine feed liquid, and concentrating and separating the obtained tomatidine feed liquid by the third filtering unit 10, the ultrafiltration unit 71 and the nanofiltration unit 72 in sequence to obtain a tomatidine concentrated solution; the concentrated tomatidine solution is evaporated by the evaporation unit 8 and dried by the drying unit 11 to obtain a tomatidine solid product.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A tomatidine extraction system is characterized by comprising a crushing unit, a leaching unit, a first filtering unit, a precipitation unit, a second filtering unit, a dissolving unit, a membrane filtering unit and an evaporation unit which are sequentially connected; the first filtering unit is also connected with a composting unit; the evaporation unit is also connected with the dissolution unit.

2. Tomato alkali extraction system as claimed in claim 1, characterized in that the system further comprises a third filtration unit, which is connected to the dissolution unit and the membrane filtration unit, respectively.

3. Tomato alkali extraction system as claimed in claim 1, wherein the system further comprises a drying unit connected to the evaporation unit.

4. The system for extracting tomato alkali according to claim 1, wherein the membrane filtration unit comprises an ultrafiltration unit and a nanofiltration unit which are connected in sequence, the ultrafiltration unit is connected with a third filtration unit, and the nanofiltration unit is connected with a drying unit.

5. Tomato caustic extraction system according to claim 1, wherein the crushing unit is a crusher.

6. A system as claimed in claim 1, wherein the leaching unit is a leaching tank filled with acid solution, the leaching tank has a feed inlet at its upper part and a liquid outlet at its lower part.

7. Tomato alkali extraction system as claimed in claim 2, characterized in that the first, second and third filter unit is a filter paper or nylon sieve.

8. A tomato alkali extraction system as claimed in claim 1, wherein the precipitation unit is a precipitation tank filled with alkali solution.

9. The system for extraction of tomato alkali as claimed in claim 1, wherein the dissolving unit is a tank filled with ethanol solution.

10. Tomato caustic extraction system according to claim 1, wherein the evaporation unit is a rotary evaporator.