Cassia seed extraction process

Abstract

The invention discloses a semen cassiae extraction process, and relates to the technical field of functional food preparation, and the semen cassiae extraction process comprises the following steps: screening a semen cassiae raw material, crushing the screened semen cassiae raw material into semen cassiae powder, carrying out enzymolysis on the crushed semen cassiae powder, filtering enzymatic hydrolysate, flushing raw material residues with water, draining water, and collecting the semen cassiae residues after enzymolysis, the method comprises the following steps: adding edible alcohol into semen cassiae residues, heating, stirring, extracting and filtering to obtain a semen cassiae extracting solution, recovering alcohol to obtain a semen cassiae concentrated solution, diluting the concentrated solution with water to obtain a semen cassiae diluent, filtering the diluent, and adsorbing and eluting the filtered diluent by using macroporous adsorption resin to obtain an eluent; and respectively concentrating the eluent of each section to obtain corresponding concentrated extractum, and drying to obtain the cassia seed powder rich in aloe-emodin. According to the method, the semen cassiae powder rich in aloe-emodin can be prepared from the semen cassiae raw material.

Description

Technical Field

[0001] The present invention relates to the technical field of functional food preparation, and more specifically to a cassia seed extraction process. Background Art

[0002] Cassia seed is the dried ripe seed of the annual herb Cassia obtusifolia or Cassia tora of the legume family. It is a variety with a long history of use. "Shennong Ben Cao Jing" listed cassia seed as "top grade", and it is also one of the varieties of medicine and food homology announced by the former Ministry of Health of the People's Republic of China. Traditional medicine believes that cassia seed is sweet, bitter, and slightly cold in nature, enters the liver and large intestine meridians, and has the effects of clearing the liver and improving eyesight, moistening the intestines and relieving constipation, etc. Li Shizhen evaluated it in "Compendium of Materia Medica" as "benefiting essence after long-term use, lightening the body... benefiting the five internal organs and improving eyesight". Modern pharmacological research shows that cassia seed has good effects such as lowering blood pressure, regulating blood lipids, antibacterial, and laxative, and has multiple effects such as enhancing the body's immunity and anti-aging. Due to the revelation of its good health care effects, it has received much attention in recent years and is a food and functional food raw material with very broad application prospects.

[0003] Aloe-emodin, also known as aloin, naturally exists in plants such as Aloe ferox Mill leaves, Rheum palmatum L roots, Rumex patientia L roots, cassia seeds, Cassia occidentalis L seeds, Cassia mimosoides L roots, and Rhamnus fruits. It and its glycosides are the main active anthraquinone components in cassia seeds, and have antibacterial and laxative effects, and can inhibit the growth of Helicobacter pylori in the stomach. Therefore, it is widely used in the functional food and cosmetics industries.

[0004] At present, the common method for extracting and preparing aloe-emodin is to use the concentrated and dried aloe juice as the raw material, extract aloin, and then obtain aloe-emodin through hydrolysis and oxidation reactions. There is no report on extracting and preparing aloe-emodin from cassia seeds as the raw material.

[0005] The traditional cassia seed extraction processes mainly include the following several:

[0006] Process 1: Crush the cassia seed raw material, extract with water at about 85 °C for three times, 2 hours each time, combine and concentrate the three extraction liquids, add maltodextrin and dry to obtain cassia seed powder.

[0007] Process 2: Crush the cassia seed raw material, add edible alcohol with an alcohol concentration of 50%-80%, extract at about 65 °C for three times, 2 hours each time, combine and concentrate the three extraction liquids, add maltodextrin and dry to obtain cassia seed powder.

[0008] Process 3: Crush the cassia seed raw material, add edible alcohol with an alcohol concentration of 50%-80%, extract at about 60 °C for three times, 2 hours each time, combine and concentrate the three extraction liquids until there is no alcohol smell, pass through a macroporous adsorption resin, first rinse with water for 2-3 column volumes, and then rinse with 95% ethanol, recover the 95% ethanol part of the ethanol, concentrate and dry to obtain cassia seed powder.

[0009] However, the enrichment of aloe-emodin in the cassia seed powder obtained by the above several preparation processes of cassia seed powder is less or not reported. Summary of the Invention

[0010] The present invention aims to solve at least one of the technical problems existing in the prior art. For this reason, a first aspect of the present invention provides a cassia seed extraction process, including:

[0011] Step 1: Screen the cassia seed raw materials and crush the screened cassia seed raw materials into cassia seed powder;

[0012] Step 2: Enzymatically hydrolyze the crushed cassia seed powder, and collect the cassia seed residue after enzymatic hydrolysis. Among them, the enzyme used for enzymatic hydrolysis includes at least one of pectinase, cellulase, amylase, protease, and glucosidase;

[0013] Step 3: Add edible alcohol with a concentration of 50-90% to the cassia seed residue, heat the cassia seed added with edible alcohol to 70-80°C multiple times, and then maintain it within the temperature range of 60-80°C for 1-3 hours. After each heat preservation ends, obtain the extraction solution, and combine the cassia seed extraction solutions obtained multiple times;

[0014] Step 4: Concentrate the combined extraction solution to obtain a cassia seed concentrate, fully dissolve the cassia seed concentrate in water with a volume 2 to 4 times that of it to obtain a cassia seed dilution solution, and adsorb the filtered dilution solution with macroporous adsorption resin;

[0015] Step 5: Successively use water, alcohol with a concentration of 25%-35%, alcohol with a concentration of 60-70%, and alcohol with a concentration of 85-95% to elute the macroporous adsorption resin saturated with adsorption to obtain corresponding multi-stage elution solutions;

[0016] Step 6: Concentrate the multi-stage elution solutions to obtain corresponding concentrated extracts, and perform drying treatment on the concentrated extracts corresponding to alcohol with a concentration of 25%-35%, alcohol with a concentration of 60-70%, and alcohol with a concentration of 85-95% to obtain cassia seed powder rich in aloe-emodin.

[0017] Optionally, the screened cassia seed raw materials include:

[0018] One of small cassia seeds, cassia seeds, degummed cassia seed powder, and cassia seed husks.

[0019] Optionally, the macroporous adsorption resin includes:

[0020] One of AB-8 type resin, D-101 type resin, or LX-38 type resin.

[0021] Optionally, the drying treatment includes:

[0022] One of vacuum drying treatment, freeze-drying treatment or spray-drying treatment.

[0023] Optionally, the particle size of the crushed cassia seed powder is 10 mesh to 80 mesh.

[0024] Optionally, the concentration of the enzyme used for enzymatic hydrolysis is 0.1%-1.5%, the temperature of enzymatic hydrolysis is 50°C to 60°C, and the time of enzymatic hydrolysis is 2-4 hours.

[0025] Optionally, when concentrating the extract, the temperature range used is 60-80°C, and it is concentrated to a solution density range of 1.0 to 1.25 to obtain a concentrated cassia seed solution.

[0026] Optionally, the steps after the step of obtaining the diluted cassia seed solution include:

[0027] After fully stirring the diluted cassia seed solution, let it stand for precipitation, filter the supernatant of the diluted cassia seed solution, and adsorb the filtered diluted cassia seed solution with macroporous adsorption resin.

[0028] Optionally, when eluting the macroporous adsorption resin with water, alcohol with a concentration of 25%-35%, alcohol with a concentration of 60-70%, and alcohol with a concentration of 85-95% in sequence, use 2 to 4 times the column volume of the macroporous adsorption resin of water, alcohol with a concentration of 25%-35%, alcohol with a concentration of 60-70%, and alcohol with a concentration of 85-95% to elute the macroporous adsorption resin in sequence to obtain multiple elution solutions.

[0029] Optionally, the enzymes used for enzymatic hydrolysis include pectinase, cellulase, amylase, protease, and glucosidase.

[0030] The embodiment of the present invention provides a cassia seed extraction process. Compared with the prior art, its beneficial effects are as follows:

[0031] The present invention enzymatically hydrolyzes the crushed semen cassiae powder and collects the residue of semen cassiae after enzymatic hydrolysis. Among them, the enzymes used for enzymatic hydrolysis include pectinase, cellulase, amylase, protease, and glucosidase. By means of enzymatic hydrolysis, components such as fiber, pectin, protein, and glycoside contained in semen cassiae are decomposed, and aloe-emodin in semen cassiae is released better. By adding 50-90% edible alcohol to the enzymatically hydrolyzed residue of semen cassiae and heating it multiple times and then holding it for extraction, a stronger extraction effect can be achieved, so as to realize the extraction of aloe-emodin components in the residue of semen cassiae. Different concentrations of alcohol are used to wash the components of semen cassiae extract adsorbed on the macroporous adsorption resin to obtain multi-collection-section eluates with different concentrations and different components. The content of aloe-emodin in the eluates of different collection sections is different, so as to obtain semen cassiae powder with a higher content of aloe-emodin than that in the eluate of a single concentration, thus realizing the enrichment of aloe-emodin in the semen cassiae powder. Brief Description of the Drawings

[0032] In order to more clearly illustrate the technical solutions of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0033] Figure 1 It is a flowchart of a semen cassiae extraction process provided by an embodiment of the present invention. Detailed Embodiments

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] This specification provides the method operation steps as described in the embodiments or the flowchart, but based on routine or non-creative labor, it may include more or fewer operation steps. When the actual system or server product is executed, it can be executed in the order shown in the embodiments or the drawings or in parallel (for example, in a parallel processor or multi-threaded processing environment).

[0036] The present invention uses semen cassiae and by-products of comprehensive utilization of semen cassiae gum (degummed powder, semen cassiae peel) as raw materials to extract and prepare semen cassiae extract powder rich in aloe-emodin. This product can be widely used in the fields of food, functional food, cosmetics, etc., and has high development and application prospects.

[0037] Figure 1The flowchart of a cassia seed extraction process provided by an embodiment of the present invention is as follows: Figure 1 The method includes:

[0038] Step 1: Screen the cassia seed raw materials and crush the screened cassia seed raw materials into cassia seed powder;

[0039] Step 2: Enzymatically hydrolyze the crushed cassia seed powder and collect the cassia seed residue after enzymatic hydrolysis. Among them, the enzymes used for enzymatic hydrolysis include at least one of pectinase, cellulase, amylase, protease, and glucosidase;

[0040] Step 3: Add edible alcohol with a concentration of 50 - 90% to the cassia seed residue, heat the cassia seed added with edible alcohol to 70 - 80°C multiple times and then maintain it within the temperature range of 60 - 80°C for 1 - 3 hours. After each heat preservation ends, obtain the extraction solution, and combine the cassia seed extraction solutions obtained multiple times;

[0041] Step 4: Concentrate the combined extraction solution to obtain a cassia seed concentrated solution, fully dissolve the cassia seed concentrated solution in water with a volume 2 to 4 times that of it to obtain a cassia seed dilution solution, and adsorb the filtered dilution solution with macroporous adsorption resin;

[0042] Step 5: Elute the macroporous adsorption resin saturated with adsorption with water, alcohol with a concentration of 25% - 35%, alcohol with a concentration of 60 - 70%, and alcohol with a concentration of 85 - 95% in sequence to obtain corresponding multi - stage elution solutions;

[0043] Step 6: Concentrate the multi - stage elution solutions to obtain corresponding concentrated extracts, and dry the concentrated extracts corresponding to alcohol with a concentration of 25% - 35%, alcohol with a concentration of 60 - 70%, and alcohol with a concentration of 85 - 95% to obtain a cassia seed powder rich in aloe - emodin.

[0044] Example 1

[0045] Screen the cassia seed raw materials, and crush the screened cassia seed raw materials into cassia seed powder. The screened cassia seed raw materials include: cassia seeds and small cassia seeds. The particle size of the crushed cassia seed powder is 45 mesh. Perform enzymatic hydrolysis on the crushed cassia seed powder, and collect the cassia seed residue after enzymatic hydrolysis. Among them, the enzymes used for enzymatic hydrolysis include pectinase, cellulase, and amylase. The concentration of the enzymes used for enzymatic hydrolysis is 0.8%, the temperature of enzymatic hydrolysis is 55 °C, and the time of enzymatic hydrolysis is 3 hours. Filter the enzymatic hydrolysate, wash the raw material residue with water, drain the water, add edible alcohol with a concentration of 90% to the cassia seed residue, heat the cassia seed residue added with edible alcohol to 75 °C, keep it warm and stir for extraction for 1.5 hours, filter the extract, and repeat adding 90% edible alcohol for extraction twice, and combine the extracts obtained each time. After concentrating the combined extract, fully dissolve it in water with a volume three times that of it to obtain a cassia seed dilution. Among them, when concentrating the combined extract, the temperature used for concentration is 70 °C, and it is concentrated until the solution density is 1.15 to obtain a cassia seed concentrate. After fully dissolving the cassia seed concentrate in water with a volume three times that of it to obtain a cassia seed dilution, let it stand and precipitate, and filter the supernatant of the cassia seed dilution, and adsorb the filtered cassia seed dilution with macroporous adsorption resin. Elute the macroporous adsorption resin successively with water, alcohol with a concentration of 30%, alcohol with a concentration of 65%, and alcohol with a concentration of 90% to obtain four corresponding eluates. Among them, the macroporous adsorption resin is AB-8 type resin. Concentrate the four eluates to obtain a concentrated extract, and dry the concentrated extract eluted with 30% alcohol to obtain cassia seed powder rich in aloe-emodin. The drying treatment method is vacuum drying. In this example, the content of aloe-emodin measured in the cassia seed powder is: 0.3%.

[0046] Example Two

[0047] Screen the cassia seed raw materials, and crush the screened cassia seed raw materials into cassia seed powder. Among them, the screened cassia seed raw materials include: degummed cassia seed powder and cassia seed skin. The particle size of the crushed cassia seed powder is 10 mesh. Enzymatically hydrolyze the crushed cassia seed powder, and collect the cassia seed residue after enzymatic hydrolysis. Among them, the enzymes used for enzymatic hydrolysis include cellulase and glucosidase. The concentration of the enzymes used for enzymatic hydrolysis is 0.1%, the temperature of enzymatic hydrolysis is 50 °C, and the time of enzymatic hydrolysis is 2 hours. Filter the enzymatic hydrolysate, wash the raw material residue with water, and drain the water. Add edible alcohol with a concentration of 50% to the cassia seed residue, heat the cassia seed residue added with edible alcohol to 70 °C, keep it warm at 60 °C and stir and extract for 1.5 hours, filter the extract, and repeat the extraction with 50% edible alcohol once. Combine the extracts obtained each time. After concentrating the combined extract, fully dissolve it in water with a volume twice that of it to obtain a cassia seed diluent. Among them, when concentrating the combined extract, the temperature used for concentration is 60 °C, and it is concentrated until the solution density is 1.0 to obtain a cassia seed concentrate. After fully dissolving the cassia seed concentrate in water with a volume twice that of it to obtain a cassia seed diluent, let it stand and precipitate, and filter the supernatant of the cassia seed diluent. Use macroporous adsorption resin to adsorb the filtered cassia seed diluent. When eluting the macroporous adsorption resin, use water, alcohol with a concentration of 25%, alcohol with a concentration of 60%, and alcohol with a concentration of 85% to elute the macroporous adsorption resin to obtain the corresponding four sections of eluates, and concentrate these four sections of eluates to obtain the concentrated extracts corresponding to these four sections of eluates. Among them, the macroporous adsorption resin is D-101 type resin. Dry the concentrated extract eluted with 60% alcohol to obtain cassia seed powder rich in aloe-emodin. The drying method is freeze-drying. In this example, the content of aloe-emodin measured in the cassia seed powder is 0.49%.

[0048] Example 3

[0049] Screen the cassia seed raw materials, and crush the screened cassia seed raw materials into cassia seed powder. The screened cassia seed raw materials include: small cassia seeds and cassia seed husks. The particle size of the crushed cassia seed powder is 80 mesh. Enzymatically hydrolyze the cassia seed powder, and collect the cassia seed residue after enzymatic hydrolysis. Among them, the enzymes used for enzymatic hydrolysis include pectinase and cellulase. Among them, the concentration of the enzymes used for enzymatic hydrolysis is 1.5%, the temperature of enzymatic hydrolysis is 60 °C, and the time of enzymatic hydrolysis is 4 hours. Filter the enzymatic hydrolysate, wash the raw material residue with water, and drain the water. Add edible alcohol with a concentration of 70% to the cassia seed residue, heat the cassia seed residue added with edible alcohol to 80 °C, keep it at 80 °C and stir for extraction for 2 hours, filter the extract, and repeat the extraction with 70% edible alcohol once. Combine the extracts obtained each time. After concentrating the combined extract, dissolve it fully in water with a volume 4 times that of the extract to obtain a cassia seed dilution. Among them, when concentrating the combined extract, the temperature used for concentration is 80 °C, and the concentration is carried out until the solution density is 1.25 to obtain a cassia seed concentrate. After fully dissolving the cassia seed concentrate in water with a volume 4 times that of the concentrate to obtain a cassia seed dilution, let it stand for precipitation and filter the supernatant of the cassia seed dilution. Use macroporous adsorption resin to adsorb the filtered cassia seed dilution. Elute the macroporous adsorption resin successively with water, alcohol with a concentration of 35%, alcohol with a concentration of 70%, and alcohol with a concentration of 95% to obtain four corresponding eluates. Among them, the macroporous adsorption resin is LX-38 type resin. Dry the concentrated extract corresponding to the 95% alcohol eluate to obtain cassia seed powder rich in aloe-emodin. The drying treatment method is freeze-drying. In this example, the content of aloe-emodin measured in the cassia seed powder is: 2.39%.

[0050] Example 4

[0051] Screen the cassia seed raw materials, and crush the screened cassia seed raw materials into cassia seed powder. Among them, the screened cassia seed raw materials include: cassia seeds. The particle size of the crushed cassia seed powder is 30 mesh. Carry out enzymatic hydrolysis on the crushed cassia seed powder, and collect the cassia seed residue after enzymatic hydrolysis. Among them, the enzymes used for enzymatic hydrolysis include pectinase, cellulase, and protease. Among them, the concentration of the enzymes used for enzymatic hydrolysis is 0.5%, the temperature of enzymatic hydrolysis is 57 °C, and the time of enzymatic hydrolysis is 2.5 hours. Filter the enzymatic hydrolysate, wash the raw material residue with water, and drain the water. Add edible alcohol with a concentration of 62% to the cassia seed residue, heat the cassia seed residue added with edible alcohol to 75 °C, keep it warm at 65 °C and stir and extract for 1.5 hours to obtain an extract, filter the extract, and repeat the extraction once by adding 62% edible alcohol. Combine the extracts obtained each time. After concentrating the combined extract, fully dissolve it in water with a volume three times that of it to obtain a cassia seed dilution. Among them, when concentrating the combined extract, the temperature used for concentration is 65 °C, and it is concentrated until the solution density is 1.1 to obtain a cassia seed concentrate. After fully dissolving the cassia seed concentrate in water with a volume three times that of it to obtain a cassia seed dilution, let it stand and precipitate, and filter the supernatant of the cassia seed dilution. Use macroporous adsorption resin to adsorb the filtered cassia seed dilution. Elute the macroporous adsorption resin successively with water 2.5 times the volume of the macroporous adsorption resin column, alcohol with a concentration of 27%, alcohol with a concentration of 63%, and alcohol with a concentration of 87% to obtain four corresponding elution solutions. Among them, the macroporous adsorption resin is AB-8 type resin. Dry the concentrated extract corresponding to the 87% alcohol eluate to obtain cassia seed powder rich in aloe-emodin. Among them, the drying treatment method is vacuum drying. In this example, the content of aloe-emodin measured in the cassia seed powder is: 0.45%.

[0052] Example 5

[0053] Screen the cassia seed raw materials and crush the selected cassia seed raw materials into cassia seed powder. Among them, the selected cassia seed raw materials include: small cassia seeds. The particle size of the crushed cassia seed powder is 60 mesh. Enzymatically hydrolyze the crushed cassia seed powder and collect the cassia seed residue after enzymatic hydrolysis. Among them, the enzymes used for enzymatic hydrolysis include pectinase, cellulase, and glucosidase. Among them, the concentration of the enzymes used for enzymatic hydrolysis is 1.0%, the temperature of enzymatic hydrolysis is 57 °C, and the time of enzymatic hydrolysis is 3.5 hours. Filter the enzymatic hydrolysate, wash the raw material residue with water, drain the water, add edible alcohol with a concentration of 68% to the cassia seed residue, heat the cassia seed residue added with edible alcohol to 80 °C, keep it warm and stir for extraction for 1.5 hours, filter the extract, and repeat the extraction with 68% edible alcohol once, and combine the extracts obtained each time. After concentrating the combined extract, fully dissolve it in water with a volume 2.5 times that of it to obtain a cassia seed dilution. Among them, when concentrating the combined extract, the temperature used for concentration is 72 °C, and concentrate until the solution density is 1.2 to obtain a cassia seed concentrate. After fully dissolving the cassia seed concentrate in water with a volume 2.5 times that of it to obtain a cassia seed dilution, let it stand for precipitation and filter the supernatant of the cassia seed dilution. Elute the macroporous adsorption resin successively with water 2.5 times the volume of the macroporous adsorption resin column, alcohol with a concentration of 33%, alcohol with a concentration of 67%, and alcohol with a concentration of 93% to obtain four corresponding elution solutions. Among them, the macroporous adsorption resin is X-38 type resin. Dry the concentrated extract corresponding to the 93% alcohol eluate to obtain cassia seed powder rich in aloe-emodin. Among them, the drying treatment method is vacuum drying. In this example, the content of aloe-emodin measured in the cassia seed powder is: 1.04%.

[0054] Table 1 shows the comparison results of the content of aloe-emodin in the cassia seed powder prepared in Examples 1 to 5

[0055]

[0056]

[0057] Among them, the content of aloe-emodin in the cassia seed powder prepared in Example 3 is higher than that in the cassia seed powder prepared in other several examples.

[0058] Table 2 is a comparison table of the content of aloe-emodin in the cassia seed powder prepared in the examples of the present invention and that prepared by the existing process

[0059]

[0060]

[0061] The data of cassia seed preparation in the table are the data of Example 3. Compared with the existing Processes 1, 2, and 3, the content of aloe-emodin in the cassia seed powder obtained by eluting and concentrating the extract with 95% alcohol concentration is the highest in this example.

[0062] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "including an..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0063] Each embodiment in this specification is described in a related manner. For the same or similar parts among the embodiments, reference can be made to each other. The key point of each embodiment is to illustrate the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and reference can be made to the relevant part of the method embodiment for the related content.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A cassia seed extraction process, characterized in that, Including: Step 1: Screen the cassia seed raw materials and crush the screened cassia seed raw materials into cassia seed powder; Step 2: Enzymatically hydrolyze the crushed cassia seed powder and collect the cassia seed residue after enzymatic hydrolysis. Among them, the enzymes used for enzymatic hydrolysis include at least one of pectinase, cellulase, amylase, protease, and glucosidase; Step 3: Add edible alcohol with a concentration of 50 - 90% to the cassia seed residue, heat the cassia seed added with edible alcohol to 70 - 80°C multiple times and then maintain it within the temperature range of 60 - 80°C for 1 - 3 hours. After each heat preservation ends, obtain the extract, and combine the cassia seed extracts obtained multiple times; Step 4: Concentrate the combined extract to obtain a cassia seed concentrated solution, fully dissolve the cassia seed concentrated solution in water with a volume 2 to 4 times that of it to obtain a cassia seed diluted solution, and adsorb the filtered diluted solution with macroporous adsorption resin; Step 5: Elute the macroporous adsorption resin saturated with adsorption successively with water, alcohol with a concentration of 25% - 35%, alcohol with a concentration of 60 - 70%, and alcohol with a concentration of 85 - 95% to obtain corresponding multi-segment eluates; Step 6: Concentrate the multi-segment eluates to obtain corresponding concentrated extracts, and dry the concentrated extracts corresponding to alcohol with a concentration of 25% - 35%, alcohol with a concentration of 60 - 70%, and alcohol with a concentration of 85 - 95% to obtain cassia seed powder rich in aloe-emodin.

2. The cassia seed extraction process according to claim 1, characterized in that, The screened cassia seed raw materials include: One of small cassia seeds, cassia seeds, degummed cassia seed powder, and cassia seed husks.

3. The cassia seed extraction process according to claim 1, characterized in that, The macroporous adsorption resin includes: One of AB-8 type resin, D-101 type resin, or LX-38 type resin.

4. The cassia seed extraction process according to claim 1, characterized in that, The drying treatment includes: One of vacuum drying treatment, freeze-drying treatment, or spray-drying treatment.

5. The cassia seed extraction process according to claim 1, characterized in that, The particle size of the crushed cassia seed powder is 10 mesh to 80 mesh.

6. The cassia seed extraction process according to claim 1, characterized in that, The concentration of the enzymes used for enzymatic hydrolysis is 0.1% - 1.5%, the temperature of enzymatic hydrolysis is 50°C to 60°C, and the time of enzymatic hydrolysis is 2 - 4 hours.

7. The cassia seed extraction process according to claim 1, characterized in that, When concentrating the extract, the temperature range used is 60 - 80°C, and it is concentrated until the density range of the solution is 1.0 to 1.25 to obtain a cassia seed concentrated solution.

8. The cassia seed extraction process according to claim 7, characterized in that, The steps after the step of obtaining the cassia seed diluted solution include: Fully stir the cassia seed diluted solution and then let it stand for precipitation, filter the supernatant of the cassia seed diluted solution, and adsorb the filtered cassia seed diluted solution with macroporous adsorption resin.

9. The cassia seed extraction process according to claim 1, wherein, When successively using water, alcohol with a concentration of 25% - 35%, alcohol with a concentration of 60 - 70%, and alcohol with a concentration of 85 - 95% to elute the macroporous adsorption resin, use water, alcohol with a concentration of 25% - 35%, alcohol with a concentration of 60 - 70%, and alcohol with a concentration of 85 - 95% that are 2 to 4 times the volume of the macroporous adsorption resin column to elute the macroporous adsorption resin successively to obtain multi-segment eluates.

10. A cassia seed extraction process according to claim 1, characterized in that, The enzymes used for enzymatic hydrolysis include at least one of pectinase, cellulase, amylase, protease, and glucosidase.

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