Shredded polygonatum sibiricum tea capable of regulating blood sugar and preparation process thereof

Abstract

The invention discloses shredded polygonatum sibiricum tea capable of regulating blood sugar and a preparation process thereof, and relates to the field of preparation of shredded polygonatum sibiricum tea, the shredded polygonatum sibiricum tea is prepared by processing polygonatum sibiricum raw materials with different volume specifications through a multi-pass steaming-drying process and then shredding, and the shredded polygonatum sibiricum tea is brewed under the brewing process conditions that the tea-water ratio is 1: 10g / mL, the time is 7 min and the temperature is 100 DEG C; and the inhibition rate of the alpha-glucosidase activity is in a range of 69.8 + / -2.5%. According to the preparation process, from factors influencing the stability of sugar control efficacy parameters, rhizoma polygonati raw materials are sorted into multiple grades according to volume specifications on a visual screening conveying line, and then the average weight information of qualified-product-grade raw materials of each grade is accurately collected; the processing technology and technological parameters most suitable for qualified product grade raw materials of each grade are matched according to the average weight information, so that the polysaccharide solution loss difference caused by the volume specification difference of the rhizoma polygonati raw materials in the multi-pass steaming treatment of the rhizoma polygonati shredded tea is reduced on the premise of not separating from the quintessence of the nine-steaming and nine-drying technology, and the product quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of polygonatum sibiricum tea preparation, and in particular to polygonatum sibiricum tea capable of regulating blood sugar and a preparation process thereof. Background Art

[0002] Modern research shows that Polygonatum sibiricum, as a traditional Chinese medicinal material, has the effects of lowering blood sugar, anti-oxidation, and enhancing immunity. Polygonatum sibiricum silk tea is a health product that regulates blood sugar and is currently popular on the market.

[0003] When the main nominal function of the Polygonatum sibiricum tea sold on the market is to regulate blood sugar, it should have test data consistent with the nominal sugar control efficacy parameters, otherwise it will affect consumers' recognition of the product. However, in actual production, although the consistency of the processing technology of Polygonatum sibiricum tea can be controlled, the sugar control index test results of Polygonatum sibiricum tea produced from different batches of Polygonatum sibiricum vary greatly, which often leads to the problem that some batches of products cannot actually reach the nominal sugar control efficacy parameters expected by the manufacturer. In order to be consistent with the actual test results, the manufacturer often has to lower the nominal sugar control efficacy parameters of the product. Summary of the invention

[0004] The present invention is based on the current status of the background technology, explores the factors that affect the stability of the parameters of the sugar control efficacy, improves the product from the source of the preparation process, and thus proposes a Polygonatum sibiricum tea that can regulate blood sugar and its preparation process.

[0005] The technical solution of the present invention is as follows:

[0006] A polygonatum sibiricum silk tea capable of regulating blood sugar is prepared by cutting polygonatum sibiricum raw materials of different volumes and specifications into shreds after being processed through multiple steaming-drying processes. The invention is characterized in that under the brewing process conditions of a tea-water ratio of 1:10 g / mL, a brewing time of 7 minutes and a temperature of 100°C, the inhibition rate of alpha-glucosidase activity is in the range of 69.8±2.5%.

[0007] The present invention also provides a preparation process of polygonatum sibiricum tea capable of regulating blood sugar, comprising the following steps:

[0008] S1, the raw material of polygonatum is sent into a cleaning container for cleaning;

[0009] S2, the washed polygonatum raw materials in step S1 are sent to a visual screening conveyor line, on which defective raw materials are automatically removed, and qualified raw materials are sorted into multiple grades according to volume specifications, and each grade of qualified raw materials is counted by a counter and sent to a weighing container;

[0010] S3. The control system obtains the average weight information of the qualified raw materials of each grade based on the quantity information obtained by the counter and the weight information obtained by the weighing container in step S2, and matches the processing technology and process parameters of the qualified raw materials of each grade according to the average weight information.

[0011] S4. The qualified raw materials of each grade are sent into different steaming boxes for the first steaming according to the process parameters matched in step S3.

[0012] S5. The qualified raw materials of each grade after the first steaming in step S4 are sent into the drying device for the first drying according to the process parameters matched in step S3.

[0013] S6. The qualified raw materials of each grade after the first drying in step S5 are sent into different steaming boxes for the second steaming according to the process parameters matched in step S3.

[0014] S7. The qualified raw materials of each grade after the second steaming in step S6 are sent into the drying device for the second drying according to the process parameters matched in step S3.

[0015] S8. The qualified raw materials of each grade after the second drying in step S7 are repeatedly subjected to the steaming-drying process 0 to 7 times according to the processing technology and process parameters matched in step S3.

[0016] S9. The qualified raw materials of each grade obtained after the multi-pass steaming-drying process in step S8 are shredded to obtain polygonatum odoratum shreds.

[0017] S10. The polygonatum odoratum shreds obtained in step S9 are repeatedly subjected to the steaming-drying process 0 to 7 times according to the processing technology and process parameters matched in step S3 to obtain the polygonatum odoratum shred tea.

[0018] For the preparation process of the polygonatum odoratum shred tea capable of regulating blood sugar as described above, it may further include the step of:

[0019] S11. According to the optimal brewing process conditions determined by experiments, the blood sugar control index of the polygonatum odoratum shred tea obtained in step S10 is detected and the detection data is recorded.

[0020] For the preparation process of the polygonatum odoratum shred tea capable of regulating blood sugar as described above, it may further lie in that the optimal brewing process conditions are that the ratio of tea to water is 1:10 g / mL, the time is 7 min, and the temperature is 100 °C, and the blood sugar control index includes the inhibition rate of polygonatum odoratum shred tea on α-glucosidase activity.

[0021] A preparation process of polygonatum odoratum silk tea capable of regulating blood sugar as described above may further lie in that, in step S3, the processing technology includes steaming-drying passes, and the process parameters include the steaming time and drying time for each steaming-drying pass.

[0022] A preparation process of polygonatum odoratum silk tea capable of regulating blood sugar as described above may further lie in that the steaming-drying passes for raw materials of different qualified grades are the same, while the steaming time and drying time for each steaming-drying pass are different.

[0023] A preparation process of polygonatum odoratum silk tea capable of regulating blood sugar as described above may further lie in that, in step S8, for each grade of qualified raw materials after the second drying in step S7, the steaming-drying process is repeated 2 to 5 times according to the matching processing technology and process parameters in step S3.

[0024] A preparation process of polygonatum odoratum silk tea capable of regulating blood sugar as described above may further lie in that, in step S8, for each grade of qualified raw materials after the second drying in step S7, the steaming-drying process is repeated 5 times according to the matching processing technology and process parameters in step S3.

[0025] A preparation process of polygonatum odoratum silk tea capable of regulating blood sugar as described above may further lie in that, in step S10, for the polygonatum odoratum silk obtained in step S9, the steaming-drying process is repeated 1 to 3 times according to the matching processing technology and process parameters in step S3 to obtain the polygonatum odoratum silk tea.

[0026] A preparation process of polygonatum odoratum silk tea capable of regulating blood sugar as described above may further lie in that, in step S10, for the polygonatum odoratum silk obtained in step S9, the steaming-drying process is repeated 2 times according to the matching processing technology and process parameters in step S3 to obtain the polygonatum odoratum silk tea.

[0027] The present invention can achieve the following technical effects:

[0028] The polygonatum odoratum silk tea capable of regulating blood sugar and its preparation process proposed by the present invention start from the factors affecting the stability of blood sugar control efficacy parameters. After sorting polygonatum odoratum raw materials into multiple grades according to volume specifications on a visual screening conveyor line, the average weight information of qualified raw materials for each grade is accurately collected, and the processing technology and process parameters most suitable for qualified raw materials of each grade are matched according to the average weight information. Without departing from the essence of the traditional "nine-steaming and nine-sunning" process, the difference in polysaccharide dissolution loss caused by the difference in the volume specifications of polygonatum odoratum raw materials during multiple steaming treatments of polygonatum odoratum silk tea is reduced, thereby stabilizing the detection results of blood sugar control indicators of polygonatum odoratum silk tea produced from different batches of raw materials and improving the quality of the product from the source of the preparation process. Description of the Drawings

[0029] Figure 1 This is the main process flow of the present invention.

[0030] Figure 2 This is the main function schematic of the vision screening conveyor line of the present invention.

[0031] The meanings of the reference numerals in the figure are as follows:

[0032] 1. Scrap removal area; 2. Grading area; 3. Counter; 4. Weighing container. Detailed implementation manners

[0033] Example 1

[0034] In this example, a preparation process for polygonatum filament tea that can regulate blood sugar is first proposed. Based on the traditional process idea of "nine steaming and nine sunning", the polygonatum raw materials are processed through multiple steaming-drying processes and then shredded. The difference is that starting from the factors affecting the stability of the sugar control efficacy parameters, on the vision screening conveyor line, the polygonatum raw materials are sorted into multiple grades according to the volume specifications, and the average weight information of the qualified raw materials of each grade is accurately collected. Then, the processing technology and process parameters most suitable for the qualified raw materials of each grade are matched, and finally, continuous production is carried out.

[0035] Specifically, the preparation process of this example includes the following steps:

[0036] S1. The polygonatum raw materials are sent into a cleaning container for cleaning.

[0037] S2. The cleaned polygonatum raw materials in step S1 are sent to the vision screening conveyor line. On the vision screening conveyor line, the raw materials of unqualified grades are automatically removed, and the qualified raw materials are sorted into multiple grades according to the volume specifications. The qualified raw materials of each grade are sent into the weighing container after being counted by the counter.

[0038] S3. The control system obtains the average weight information of the qualified raw materials of each grade based on the quantity information obtained by the counter and the weight information obtained by the weighing container in step S2, and matches the processing technology and process parameters of the qualified raw materials of each grade according to the average weight information.

[0039] Figure 2The main functions of the improved visual screening conveyor line adopted by the present invention are marked schematically. In order to perform the above steps S2 and S3, the conveyor line is equipped with visual recognition elements, and the visual recognition elements can continue to use the existing image acquisition and processing module, which is not shown in the figure because it is arranged above the conveyor line. There are two areas on the conveyor line, namely the waste rejection area 1 and the grading area 2. The waste rejection area 1 is the original design. After the visual recognition element identifies the defective grade raw materials in the polygonatum odoratum raw materials conveyed on the surface of the conveyor line, they will be directly pushed into the waste box by the pusher element in the waste rejection area 1. The grading area 2 is the improved part, and it is equipped with a plurality of grading branches with counters 3 and weighing containers 4. Among them, since the end of the conveyor line is also used to receive the qualified grade raw materials of one of the grades, it is also marked as the grading area in the figure, and the weighing container is not shown.

[0040] Among them, the processing technology includes steaming-drying passes, and the process parameters include the steaming time and drying time for each steaming-drying pass. In order not to deviate from the essence of the traditional "nine-steaming and nine-sunning" process, here it is preferred to ensure that the steaming-drying passes of the qualified grade raw materials of different grades are the same. On this basis, the steaming time and drying time for each steaming-drying pass corresponding to the qualified grade raw materials of different grades are different, and the optimal parameters are determined according to the optimization of the previous experiments.

[0041] S4, The qualified grade raw materials of each grade are sent into different steaming boxes for the first steaming according to the process parameters matched in step S3.

[0042] S5, The qualified grade raw materials of each grade after the first steaming in step S4 are sent into the drying device for the first drying according to the process parameters matched in step S3.

[0043] S6, The qualified grade raw materials of each grade after the first drying in step S5 are sent into different steaming boxes for the second steaming according to the process parameters matched in step S3.

[0044] S7, The qualified grade raw materials of each grade after the second steaming in step S6 are sent into the drying device for the second drying according to the process parameters matched in step S3.

[0045] S8, The qualified grade raw materials of each grade after the second drying in step S7 are repeatedly subjected to the steaming-drying process 0-7 times according to the processing technology and process parameters matched in step S3.

[0046] Here, the optimal number of 0-7 times is 2-5 times.

[0047] It should be noted that under the current high-precision temperature and pressure process control conditions and dynamic adjustment technologies, the total number of steaming-drying passes in the whole process does not actually have to be limited to the nine passes in the traditional "nine-steaming and nine-sunning" process, and product quality comparable to that of the traditional nine-pass process can also be obtained. Before this step, the polygonatum raw materials have undergone two passes of steaming-drying process, and after the polygonatum raw materials are shredded, there will be at least one more pass of steaming-drying process. Therefore, for each grade of qualified raw materials that have undergone two passes of steaming-drying process in this step, repeating the steaming-drying process 2 - 5 times is sufficient to ensure the quality of processing.

[0048] S9. Shred each grade of qualified raw materials obtained in step S8 after being processed through multiple passes of steaming-drying process to obtain polygonatum filaments.

[0049] S10. Repeat the steaming-drying process 0 - 7 times for the polygonatum filaments obtained in step S9 according to the processing technology and process parameters matched in step S3 to obtain the polygonatum filament tea.

[0050] Similarly, for the reasons mentioned in step S8, generally 1 - 3 times can be selected for the 0 - 7 times in this step. Because after step S8, the polygonatum raw materials have actually undergone 4 - 7 passes of steaming-drying process, and multiple steaming of the shredded polygonatum raw materials is more likely to cause the loss of polysaccharides.

[0051] Through the above steps, polygonatum filament tea that can regulate blood sugar is prepared. In the next step (S11), the sugar control index of the obtained polygonatum filament tea can be detected according to the optimal brewing process conditions determined by experiments, and the detection data can be recorded to verify the positive effect of the above process on stabilizing the sugar control index.

[0052] Verification Example 1

[0053] Select polygonatum fresh fruit raw materials harvested from September to November 2024 (the production areas are all selected from Daiyue District), and prepare multiple batches of polygonatum filament tea according to the preparation process of Example 1. The processing technology is designed according to the nine passes in the "nine-steaming and nine-sunning" process. In step S8, repeat the steaming-drying process 5 times for each grade of qualified raw materials after the second drying. In step S10, repeat the steaming-drying process 2 times for the obtained polygonatum filaments. The total number of steaming-drying times for the polygonatum raw materials in the whole process is fixed at 9 times.

[0054] In the above verification example, with the grammage of 580±20, 750±20, and 900±20 respectively as the critical thresholds for the division of the average weight intervals, the processing techniques and process parameters corresponding to the raw materials of each grade of qualified products are the optimal or relatively optimal values verified through experiments in production. Under the same autoclaving and temperature conditions, the cumulative time difference in the 9 steaming processes of the raw materials of adjacent grades of qualified products is not less than 45 minutes, and the drying time is based on reaching the set water content (less than 10%).

[0055] Effect detection

[0056] The optimal brewing process conditions determined according to the experiments mentioned in the present invention, and the detection of the sugar control index for the obtained polygonatum odoratum filament tea is the optimal brewing process conditions suitable for the fine filament polygonatum odoratum tea determined through orthogonal experiments, specifically as follows:

[0057] Category Optimal process conditions Polysaccharide content Thin filament polygonatum sibiricum tea Ratio of tea to water 1:10 g / mL; time 7 min; temperature 100 °C ＞7.8％

[0058] Under the above optimal brewing conditions, the inhibition rate of α-glucosidase activity of polygonatum odoratum filament tea produced in multiple different batches in Verification Example 1 of the present invention was detected (measurement method: Shao Jikuan et al., Journal of Hunan University of Chinese Medicine, 2023, 43(7): 1225-1231), and the data distribution is as follows:

[0059] Raw material origin Harvest time Production time Number of samples Maximum value Minimum value Mean value Daiyue District September - November 2024 September - December 2024 45 72.1％ 67.7％ 69.8％

[0060] Compared with the above detection results are the recorded data of the inhibition rate of α-glucosidase activity of polygonatum odoratum filament tea products harvested and produced in the same period in 2023. To ensure the comparability of the comparison results, only the detection values corresponding to the products with a fixed total number of steaming-drying times of polygonatum odoratum raw materials of 9 times in the whole process were also selected. The difference from the 2024 batches is that four grades of qualified raw materials were not divided based on the average weight interval, and different processing techniques and process parameters were not adopted. The data distribution of the comparative examples is as follows:

[0061]

[0062] It can be seen that after adopting the preparation process of polygonatum odoratum filament tea of the present invention, compared with the production verification data in the same period in 2023, not only the average value of the inhibition rate of α-glucosidase activity of polygonatum odoratum filament tea in different batches has increased from 67.7% to 69.8%, with an obvious increase, but also from the distribution of the detection results, the difference (absolute value) between the maximum and minimum values of the inhibition rate of α-glucosidase activity has also decreased from 6.3% to 4.4%, showing a significant reduction.

[0063] In summary, starting from the factors affecting the stability of the blood sugar control efficacy parameters, the present invention sorts the polygonatum odoratum raw materials into multiple grades according to the volume specifications on the visual screening conveyor line, accurately collects the average weight information of the qualified raw materials of each grade, and matches the processing technology and process parameters most suitable for the qualified raw materials of each grade according to the average weight information. Without departing from the essence of the traditional "nine steaming and nine drying" process, the present invention reduces the polysaccharide dissolution loss difference caused by the volume specification difference of the polygonatum odoratum raw materials in the multi-pass steaming treatment of polygonatum odoratum tea, thereby stabilizing the detection results of the blood sugar control indicators of the polygonatum odoratum tea produced from different batches of raw materials and improving the product quality from the source of the preparation process. In addition, the advantage of the preparation process provided by the embodiment of the present invention is that if it is necessary to further improve the blood sugar regulation index of the polygonatum odoratum tea to an inhibition rate of more than 75% of the α-glucosidase activity and it is not desired to make the polygonatum odoratum tea into a formula tea, in step S10, other blood sugar-regulating biological raw materials with a particle size smaller than that of the polygonatum odoratum tea can also be used to cover or coat the polygonatum odoratum tea and then steamed and dried together, and after the processing is completed, the polygonatum odoratum tea is screened and separated, so that only the active ingredients of other blood sugar-regulating biological raw materials are carried by the polygonatum odoratum tea without changing the singularity of the raw material formula of the polygonatum odoratum tea. For example, experiments have shown that when other blood sugar-regulating biological raw materials are selected as kudzu root or coptis chinensis, the inhibition rate of the α-glucosidase activity can be increased to more than 74.5%.

[0064] The above is only a preferred embodiment of the present invention. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A polygonatum sibiricum silk tea that can regulate blood sugar is made by cutting polygonatum sibiricum raw materials of different volumes and specifications into shreds after being processed by multiple steaming-drying processes, and is characterized in that: Under the brewing process conditions of tea-to-water ratio of 1:10 g / mL, brewing time of 7 min and temperature of 100°C, the inhibition rate of α-glucosidase activity was in the range of 69.8±2.5%.

2. A preparation process of polygonatum sibiricum tea capable of regulating blood sugar, characterized in that: The following steps are involved: S1, the raw material of polygonatum is sent into a cleaning container for cleaning; S2, the washed polygonatum raw materials in step S1 are sent to a visual screening conveyor line, on which defective raw materials are automatically removed, and qualified raw materials are sorted into multiple grades according to volume specifications, and each grade of qualified raw materials is counted by a counter and sent to a weighing container; S3, the control system obtains the average weight information of each grade of qualified grade raw materials according to the quantity information obtained by the counter and the weight information obtained by the weighing container in step S2, and matches the processing technology and process parameters of each grade of qualified grade raw materials according to the average weight information; S4, the qualified raw materials of each grade are sent to different steamers for the first steaming according to the process parameters matched in step S3; S5, the qualified raw materials of each grade after the first steaming in step S4 are sent to a drying device for first drying according to the process parameters matched in step S3; S6, the qualified raw materials of each grade after the first drying in step S5 are sent to different steamers for a second steaming according to the process parameters matched in step S3; S7, the qualified raw materials of each grade after the second steaming in step S6 are sent to the drying device for second drying according to the process parameters matched in step S3; S8, repeating the steaming-drying process for 0 to 7 times for each grade of qualified raw materials after the second drying in step S7 according to the processing process and process parameters matched in step S3; S9, cutting each grade of qualified raw materials obtained in step S8 through multiple steaming-drying processes into shreds to obtain polygonatum sibiricum shreds; S10, repeating the steaming-drying process for 0 to 7 times according to the processing process and process parameters matched in step S3 on the polygonatum sibiricum silk obtained in step S9 to obtain the polygonatum sibiricum silk tea.

3. The preparation process of the polygonatum sibiricum tea capable of regulating blood sugar according to claim 2, characterized in that: Also includes the steps: S11, according to the optimal brewing process conditions determined by the experiment, the sugar control index of the polygonatum sibiricum tea obtained in step S10 is tested and the test data is recorded.

4. The preparation process of the polygonatum sibiricum tea capable of regulating blood sugar according to claim 3, characterized in that: The optimal brewing process conditions are a tea-to-water ratio of 1:10 g / mL, a brewing time of 7 minutes, and a temperature of 100° C. The sugar control index includes the inhibition rate of Polygonatum sibiricum tea on α-glucosidase activity.

5. The preparation process of the polygonatum sibiricum tea capable of regulating blood sugar according to claim 2, characterized in that: The processing technology in step S3 includes steaming-drying steps, and the process parameters include steaming time and drying time of each steaming-drying step.

6. The preparation process of the polygonatum sibiricum tea capable of regulating blood sugar according to claim 5, characterized in that: The steaming-drying passes for different grades of qualified raw materials are the same, but the steaming time and drying time for each steaming-drying pass are different.

7. The preparation process of the polygonatum sibiricum tea capable of regulating blood sugar according to claim 2, characterized in that: In step S8, the steaming-drying process is repeated 2 to 5 times for each grade of qualified raw materials after the second drying in step S7 according to the processing technology and process parameters matched in step S3.

8. The preparation process of the polygonatum sibiricum tea capable of regulating blood sugar according to claim 7, characterized in that: In step S8, the steaming-drying process is repeated 5 times for each grade of qualified raw materials after the second drying in step S7 according to the processing technology and process parameters matched in step S3.

9. The preparation process of the polygonatum sibiricum tea capable of regulating blood sugar according to claim 7 or 8, characterized in that: In step S10, the polygonatum sibiricum silk obtained in step S9 is processed by the steaming-drying process repeatedly for 1 to 3 times according to the processing process and process parameters matched in step S3 to obtain the polygonatum sibiricum silk tea.

10. The preparation process of polygonatum sibiricum tea capable of regulating blood sugar according to claim 9, characterized in that: In step S10, the polygonatum sibiricum silk obtained in step S9 is repeatedly processed by steaming-drying process twice according to the processing process and process parameters matched in step S3 to obtain the polygonatum sibiricum silk tea.

Images