Polygala fallax hemsl processing method

Abstract

The invention relates to the field of traditional Chinese medicinal material processing, and particularly discloses a polygala fallax hemsl processing method which comprises the following steps: selecting two-year-old or three-year-old polygala fallax hemsl which is picked within 3 days, cleaning the polygala fallax hemsl, putting the polygala fallax hemsl into a constant-temperature blast drying oven, and drying at the constant temperature of 50 DEG C for 4-16 hours, when the water content of the polygala fallax hemsl is reduced to 11.3%-45.24%, the polygala fallax hemsl is fed into a cutting mechanism to be cut and processed. According to the scheme, a drying process is innovatively introduced, polygala fallax hemsl is dried to prepare a semi-finished product, and the semi-finished product enters other processing flows subsequently. By adopting the scheme, the semi-finished product polygala fallax hemsl has the remarkable advantages of being not easy to deteriorate and convenient to transport under the conditions that a large amount of effective components are reserved and the drug effect is fully guaranteed (the content of the effective components is far higher than that of a product obtained by a traditional processing mode), and the loss is effectively reduced.

Description

Technical Field

[0001] The invention belongs to the field of Chinese medicinal material processing, and particularly relates to a method for processing yellow flower water lotus. Background Art

[0002] As a traditional Chinese medicine in Guangxi, the Yellow Flower Water Lotus has rich medicinal value. It is rich in a variety of natural antioxidants, vitamin C and vitamin E, can improve immunity, and has anti-inflammatory, anti-tumor, anticoagulant, liver protection, and immune enhancement effects. It is used to treat physical weakness after illness, uterine prolapse, irregular menstruation, waist and knee pain, acute / chronic hepatitis and traumatic injuries. It is also one of the common nourishing soup ingredients for ethnic minorities. Through further research and development and utilization, we can further play the value of the Yellow Flower Water Lotus in the fields of health care and medicine.

[0003] The prior art is to process the yellow flower water lotus, and the commonly used methods are fresh processing and traditional processing. Fresh processing is a method of directly processing fresh Chinese medicinal materials from the origin of Chinese medicine and then processing them into slices, blocks, petals, segments, etc. according to regulations, and then drying. The traditional method requires that the fresh medicinal materials be dried into dry medicinal materials at the origin and then stored and transported to the slice factory, and then the medicinal materials are soaked, cut and then dried. Although the effective ingredients are lost, the production cost is extremely low. The water content of each medicinal part of Chinese medicinal materials is different. Fresh processing can separate the Chinese medicinal materials of different medicinal parts, which is conducive to retaining the effective ingredient content of Chinese medicinal materials, avoiding the rot and mildew of the parts with higher water content, and effectively avoiding the problem of mutual conversion between the effective ingredients brought about during the storage and transportation of medicinal materials. Chinese medicine is cut while fresh directly cuts fresh medicinal materials without soaking again, which saves processing time and unnecessary repeated links in the process, and can also slightly reduce the production and processing costs.

[0004] With the development of society, traditional Chinese medicine processing has shown more and more drawbacks. With the policy relaxation, fresh-cut processing has become a new research hotspot in traditional Chinese medicine. Currently, various regions are actively exploring methods for fresh-cut processing of Chinese medicine. Most of them have shown certain advantages in retaining effective ingredients, shortening production cycles and saving production costs, and are highly praised by industry insiders. Summary of the invention

[0005] The purpose of the invention is to provide a method for processing yellow flower water lily with good processing effect.

[0006] To achieve the above-mentioned purpose, the present invention provides a processing method of yellow flower water lily, comprising the following steps: selecting two-year-old or three-year-old yellow flower water lily that is picked within 3 days, washing the yellow flower water lily, placing the yellow flower water lily in a constant temperature blast drying oven and drying it at a constant temperature of 50°C for 4h-16h, and when the water content of the yellow flower water lily drops to 11.3%-45.24%, sending it to a cutting mechanism for cutting and processing.

[0007] As an improvement of the above scheme, three-year-old yellow water lily is selected and dried for 16 hours. When the water content of the yellow water lily drops to 20%-30%, it is sent to a cutting mechanism for cutting and processing.

[0008] The present invention has the following beneficial effects: processing the yellow flower water lily while it is fresh can retain its effective ingredients to a great extent. On this basis, this scheme innovatively introduces a drying process to dry the yellow flower water lily into a semi-finished product, which then enters other processing flows. With this scheme, while a large amount of effective ingredients are retained and the efficacy is fully guaranteed (the content of effective ingredients is much higher than that of products obtained by traditional processing methods), the semi-finished yellow flower water lily has the significant advantages of not being easy to deteriorate and being easy to transport. In this way, there is no need to set up a large-scale production plant near the raw material production area. It is only necessary to place a drying oven nearby to temporarily process the raw materials, thereby effectively reducing losses and achieving a reduction in production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure E1 It is a two-year-old yellow-flowered water lily that is processed and cut while fresh;

[0010] Figure E2 It is a two-year-old yellow water lily that is processed while fresh and dried naturally for three days;

[0011] Figure E3 It is a two-year-old yellow water lily that is processed while fresh and dried naturally for 5 days;

[0012] Figure E4 It is a two-year-old yellow-flowered water lily that is processed while fresh and dried naturally for 7 days;

[0013] Figure E5 It is a two-year-old yellow-flowered water lily that is processed while fresh and naturally dried for 9 days;

[0014] Figure E6 It is a two-year-old yellow-flowered water lily that is processed while fresh and dried in the shade for four days;

[0015] Figure E7 It is a two-year-old yellow-flowered water lily that is processed while fresh and dried in the shade for 7 days;

[0016] Figure E8 It is a two-year-old yellow-flowered water lily that is processed while fresh and dried in the shade for 10 days;

[0017] Figure E9 It is a two-year-old yellow-flowered water lily that is processed while fresh and dried in the shade for 14 days;

[0018] Figure E10 It is a two-year-old yellow water lily that is processed while fresh and dried at 50℃ for 1 / 6 day; Figure E11 It is a two-year-old yellow water lily that is processed while fresh and dried at 50℃ for 1 / 3 day; Figure E12It is a two-year-old yellow water lily that is processed while fresh and dried at 50℃ for 1 / 2 day; Figure E13 It is a two-year-old yellow water lily that is processed while fresh and dried at 50℃ for 2 / 3 days; Figure E14 It is a two-year-old traditionally processed and naturally dried yellow-flowered water lily;

[0019] Figure E15 It is a two-year-old traditionally processed, shade-dried yellow-flowered water lily;

[0020] Figure E16 It is a two-year-old yellow-flowered water lily that is traditionally processed and dried at 50°C;

[0021] Figure F1 It is a three-year-old yellow-flowered water lily that is processed and cut while fresh;

[0022] Figure F2 It is a three-year-old yellow water lily that is processed while fresh and dried naturally for three days;

[0023] Figure F3 It is a three-year-old yellow water lily that is processed while fresh and dried naturally for five days;

[0024] Figure F4 It is a three-year-old yellow water lily that is processed while fresh and dried naturally for 7 days;

[0025] Figure F5 It is a three-year-old yellow water lily that is processed while fresh and naturally dried for 9 days;

[0026] Figure F6 It is a three-year-old yellow-flowered water lily that is processed while fresh and dried in the shade for four days;

[0027] Figure F7 It is a three-year-old yellow-flowered water lily that is processed while fresh and dried in the shade for seven days;

[0028] Figure F8 It is a three-year-old yellow-flowered water lily that is processed while fresh and dried in the shade for 10 days;

[0029] Figure F9 It is a three-year-old yellow-flowered water lily that is processed while fresh and dried in the shade for 14 days;

[0030] Figure F10 It is a three-year-old yellow water lily that is processed while fresh and dried at 50℃ for 1 / 6 day; Figure F11 It is a three-year-old yellow water lily that is processed while fresh and dried at 50℃ for 1 / 3 day; Figure F12 It is a three-year-old yellow water lily that is processed while fresh and dried at 50℃ for 1 / 2 day; Figure F13 It is a three-year-old yellow water lily that is processed while fresh and dried at 50℃ for 2 / 3 days; Figure F14 It is a three-year-old traditionally processed and naturally dried yellow flowered water lily;

[0031] Figure F15 It is a three-year-old traditionally processed, shade-dried yellow-flowered water lily;

[0032] Figure F16 It is a three-year-old yellow-flowered water lily that is traditionally processed and dried at 50°C;

[0033] Figure 1 This is a graph showing the relationship between the moisture content of two-year-old fresh-processed fruits and the time of pre-cutting treatment;

[0034] Figure 2 This is a graph showing the relationship between the moisture content of three-year-old fresh-processed bananas and the time of pre-cutting treatment;

[0035] Figure 3 is the total ash content of two-year-old water lily with different processing;

[0036] Figure 4 is the total ash content of three-year-old water lily with different processing;

[0037] Figure 5 is the content of alcohol-soluble extracts of two-year-old yellow water lily with different processing methods;

[0038] Figure 6 is the content of alcohol-soluble extracts of three-year-old yellow-flowered water lily with different processing;

[0039] Figure 7 is the glucose standard curve;

[0040] Figure 8 is the total polysaccharide content of two-year-old water lily with different processing;

[0041] Fig. 9 is the total polysaccharide content of three-year-old water lily with different processing;

[0042] Fig.10 is the rutin standard curve;

[0043] Fig.11 Total flavonoids content of two-year-old water lily with different processing;

[0044] Fig.12 Total flavonoids content of three-year-old water lily with different processing; DETAILED DESCRIPTION

[0045] The invention discloses a processing method of yellow flower water lily, comprising the following steps: selecting two-day-old or three-year-old yellow flower water lily which is picked within three days, washing the yellow flower water lily, putting the yellow flower water lily into a constant temperature blast drying oven and drying it at a constant temperature of 50 DEG C for 4h-16h, and sending the yellow flower water lily to a cutting mechanism for cutting and processing when the water content of the yellow flower water lily drops to 11.3%-45.24%.

[0046] 1. Materials

[0047] 1.1 Reagents and instruments

[0048]

[0049] Table 1-1 Main reagents and instruments for the experiment

[0050] 1.2 Experimental Materials

[0051] In July 2022, two-year-old and three-year-old yellow water lilies were collected at the base. The samples were identified as roots of fresh medicinal materials of Polygalafallax Hemsl. of the Polygalaceae family. The samples were processed according to Tables 1-2 and 1-3 mentioned below, dried to constant weight (set temperature 50°C), then crushed and sieved (60 mesh), and stored in a desiccator for later use.

[0052] 1.3 Experimental methods

[0053] 1.3.1. Processing while fresh

[0054] Fresh yellow water lilies (two-year-old and three-year-old) were washed and divided into 13 groups. The moisture content was measured after processing as shown in Tables 1-2 and 1-3. The water content was cut into 3-4 cm long sections and dried at 50°C. The moisture content was measured again after drying. Each group was repeated three times and numbered E1-E13 and F1-F13 respectively.

[0055] 1.3.2 Traditional Processing

[0056] Fresh yellow water lilies (two-year-old and three-year-old) were washed and divided into three groups. After being washed and softened according to the processing methods in Table 1-2 and Table 1-3, they were cut into 3-4 cm long segments and dried at 50°C. The moisture content before cutting and after drying was measured. Each group was repeated three times. Numbers were E14-E16, F14-F16.

[0057]

[0058]

[0059] Table 1-2 Information table before cutting of fresh processing and traditional processing of two-year-old yellow flower water lily medicinal materials

[0060]

[0061] Table 1-3 Information table before cutting of three-year-old yellow flower water lily medicinal materials during fresh processing and traditional processing

[0062] 2. Experimental methods

[0063] 2.1. Moisture determination

[0064] The moisture content was determined by referring to the drying method (General Chapter 0832 Moisture Determination Method 2) of the 2020 edition (Volume 4) of the Chinese Pharmacopoeia, and repeated 3 times.

[0065] xt=(mt-m0) / mt;

[0066] Where mt is the mass of the slice at time t, and m0 is the mass of the dry matter of the slice.

[0067] 2.2. Determination of extract content

[0068] Refer to the 2020 edition of the "Chinese Pharmacopoeia" (Volume 4) (General Chapter 2201 Extraction Method) for determination.

[0069] 2.3. Determination of total ash content

[0070] Refer to the 2020 edition of the "Chinese Pharmacopoeia" (Volume 4) (General Chapter 2302 Ash Content Determination Method) for determination.

[0071] 2.4. Determination of total polysaccharide content

[0072] Refer to the determination method of polysaccharides from Hedyssa subspinipes in the literature.

[0073] 2.4.1. Standard curve drawing

[0074] ① Take 10 mg of the reference substance anhydrous glucose, dissolve it in a 100 mL volumetric flask with water and make up to volume for later use.

[0075] ② Accurately measure 0.20mL, 0.40mL, 0.60mL, 0.80mL, and 1.00mL of the solution in "①" into 10mL stoppered test tubes respectively, and dilute to 2mL with water.

[0076] ③Put the solutions in "②" into an ice water bath, add 1.0 mL of 4% phenol solution and mix well; immediately add 6.0 mL of concentrated sulfuric acid and mix well; after boiling in a boiling water bath for 15 minutes, take out and let stand in an ice water bath for 5 minutes.

[0077] ④ Set the blank control group to 2 mL of distilled water as a reference, and measure the absorbance (OD) value at a wavelength of 490 nm using UV-visible spectrophotometry.

[0078] ⑤ The horizontal axis is the concentration of glucose solution, and the vertical axis is the OD value. Draw the standard curve and obtain the corresponding linear regression equation: A=2.5709x+0.0005, R2=0.9995.

[0079] 2.4.2 Sample content determination

[0080] ① Weigh an appropriate amount of powder, defatted with anhydrous ethanol 3 times (2h / time), filtered, and the ethanol was removed from the residue in a rotary evaporator.

[0081] ② Weigh 10 g of defatted powder into a round-bottom flask, extract with hot water for 3 times, combine the concentrated filtrates, add anhydrous ethanol to an alcohol concentration of 90%, stand at 4°C overnight, centrifuge for 10 minutes (6000r / min), dilute the precipitate with water to 10 mL, add sevag reagent, shake vigorously for 25 minutes, centrifuge for 15 minutes (6000r / min), and repeat the operation 4 times until the protein is completely removed.

[0082] ③Then the polysaccharide solution was diluted with water, and then activated carbon was added for decolorization, followed by 10 minutes of high-speed centrifugation (10000r / min), followed by filtration, reduced pressure concentration, and finally freeze-drying to prepare Pleurotus eryngii polysaccharides (PFPs).

[0083] ④ After accurately weighing PFPs, dry them to constant weight and prepare a polysaccharide solution with a concentration of 0.4 mg / mL. Take 1 mL of the sample solution and place it in a stoppered test tube, and determine the OD value of the polysaccharide solution according to the method under "2.4.1".

[0084] 2.5. Determination of total flavonoid content

[0085] Refer to the determination method of total flavonoids of Polygonum multiflorum in the literature.

[0086] 2.5.1 Standard curve drawing

[0087] ① Weigh 25 mg of the reference substance rutin into a 50 mL volumetric flask and dilute it with 70% ethanol to make a 0.5 mg / mL rutin standard solution.

[0088] ②Add 0.0, 0.2, 0.4, 0.6, 0.8, 1.0 mL of 0.5 mg / mL rutin standard solution to the 6 marked 10 mL volumetric flasks respectively; then add 0.3 mL of 5% NaNO2 solution respectively, shake well, and let stand for 6 minutes; then add 0.3 mL of 10% Al(NO3)3 solution, shake well again, and let stand for 6 minutes. Then add 4 mL of 4% NaOH solution, dilute to the mark with 70% ethanol, shake well, and let stand for 15 minutes.

[0089] ③Finally, the blank group was used as a control and the OD value at 510 nm was measured on a UV-visible spectrophotometer.

[0090] ④ With rutin concentration as the horizontal axis and OD value as the vertical axis, a linear regression curve was drawn to obtain the linear regression equation: A=1.2137x-0.0065, R2=0.9993.

[0091] 2.5.2. Sample content determination

[0092] Weigh 2.0g of water lily powder accurately, with a solid-liquid ratio of 1:20, add 70% ethanol, and sonicate for 20 minutes. Filter, dilute to volume in a 50mL volumetric flask, take 1mL of the extract in a 10mL volumetric flask, and perform the experiment according to the method under "2.5.1", determine the OD value, and calculate the total flavonoid content.

[0093] 2.6. Comprehensive scoring method for optimal processing technology

[0094] The total ash content, extract content, total polysaccharide content, and total flavonoid content are used as indicators, and the weight of each indicator accounts for 1 / 4. The comprehensive score is calculated by the comprehensive indicator membership. Membership = (index value-indicator minimum value) / (indicator maximum value-indicator minimum value); Comprehensive score = total ash membership × 1 / 4 + extract membership × 1 / 4 + total polysaccharide membership × 1 / 4 + total flavonoid membership × 1 / 4.

[0095] 2.7 Statistical Analysis

[0096] Microsoft Excel, SPSS27.0.1, and origin2022 were used to analyze experimental data and charts.

[0097] 3. Results

[0098] 3.1. Identification of properties

[0099] 3.1.1 Effects of different processing methods on the appearance of water lilies (biennial)

[0100]

[0101] Table 1-4 Comparative information on the characteristics of two-year-old yellow water lilies with different processing

[0102] like Figure E1-Figure E16, as shown in Tables 1-4, the properties and descriptions of the two-year-old yellow water lily after being processed by different methods. The third volume of the Guangdong Provincial Standard for Traditional Chinese Medicines (2019 Edition) records that the surface of the yellow water lily is gray-yellow or gray-brown, with obvious longitudinal wrinkles. The sizes vary after cutting, the skin of the cut surface is brown-yellow, and the wood has ring patterns. The specific shape analysis is as follows: E1 is directly cut while fresh, and the surface and cross-section color meet the standard records. Compared with the three traditional processing, the cross-section color is darker than the traditional processing. E2~E5 are the properties after 3, 5, 7, and 9 days of natural drying while fresh, respectively. Compared with the traditional natural drying processing of E14, the moisture content is between 5% and 7%, which is not much different. After both methods are processed, they are easy to cut and the surface is brown-yellow, but the cross-section color is only the same as the traditional method in E4, and the other samples are more in line with the description in the standard. See E6~E9 for the processing of fresh shade drying, and E15 is the corresponding traditional control group. By comparison, it is found that the moisture content of fresh processing is slightly higher than that of traditional processing by about 1% to 2%, and the overall appearance and shape are not much different, which is basically consistent with the traditional method. The cross section will appear slightly white. The analysis may be due to the slightly higher moisture content, but it meets the standard requirement of no more than 12%. The fresh drying treatment method is shown in E10 to E13. Compared with the traditional method E16, the moisture content is slightly higher than the control group, but meets the standard. It is easier to cut, and the surface properties such as brown-yellow are not much different, but the cross section of fresh processing is light yellow-brown, which is closer to the standard than the yellow-white color of the traditional method. In summary, compared with the traditional processing method, although the moisture content of fresh processing is slightly higher than that of traditional processing, it meets the standard requirements. In terms of appearance and shape, there is no significant difference between fresh processing and traditional processing as a whole.

[0103] 3.1.2 Effects of different processing methods on the appearance of water lilies (three-year-old)

[0104] The results of the appearance characteristics of three-year-old yellow water lily with different processing are shown in Figure F1-F16, Table 1-5. The moisture content of fresh processing and traditional processing after drying does not exceed 12%, which meets the moisture content requirements of the standard for yellow water lily. F1 is directly cut while fresh, and the surface and cross-section color meet the standard record. Compared with the three traditional processing, the cross-section color is similar to the traditional processing. In the natural drying method, the fresh processing samples are F2~F5, and F14 uses traditional processing as the control group. From the results, it can be seen that the surface of the traditional processing is brownish yellow after drying, but the cross-section is yellowish white. The surface of the four groups in the fresh processing is brownish yellow after drying, but the cross-section is basically light brownish yellow, which is closer to the standard than the traditional processing. In the shade drying method, the appearance of the fresh processing samples is shown in F6~F9, and the traditional processing is shown in F15. The overall appearance of the three-year-old yellow water lily presented by the two methods is not much different, but it is worth noting that the moisture content of the fresh processing method after drying is about 6%~7%, which is slightly higher than the traditional processing. Therefore, the cross-section color is lighter than the traditional method, which basically meets the requirements of the pharmacopoeia. In the drying process, F10 to F13 are four groups of samples processed while fresh. Compared with F16 traditional processing, it can be seen that the overall difference between the two methods is not large. Therefore, there is no significant difference between the three-year-old yellow flower water lily processing while fresh and the traditional processing.

[0105]

[0106] Table 1-5 Comparative information on the characteristics of three-year-old yellow-flowered water lily with different processing

[0107] 3.2. Fresh processing time - moisture content change

[0108] The decrease in moisture content of two-year-old and three-year-old yellow water lilies by different processing methods Figure 1 and Figure 2 As shown. The yellow curve is the drying method in fresh processing. Since the ambient temperature rises rapidly during drying, the rate of decrease in moisture content also accelerates. There is no significant difference in the drying method between the two-year-old and three-year-old yellow water lilies. The natural drying method in fresh processing is the green curve. As can be seen from the figure, in the two-year-old yellow water lily, the rate of decrease in moisture content from 0 to 5 days is slower than that from 5 to 9 days, showing two overall trends. The rate of decrease in moisture content of the three-year-old yellow water lily is more stable than that of the two-year-old. The red curve represents the shade drying method in fresh processing. As shown in the figure, there is not much difference between the two years of medicinal materials as a whole, but the final decrease in moisture content of the three-year-old is slightly better than that of the two-year-old. In summary, there is no significant difference in the different fresh processing methods of the two-year-old yellow water lily, but the three-year-old will be more stable and the moisture content decrease effect is slightly better than that of the two-year-old.

[0109] 3.3. Total ash content measurement

[0110] The results are shown in Tables 1-6, 1-7, Figure 3 and Figure 4 . The third volume of the Guangdong Provincial Standard for Traditional Chinese Medicine (2019 edition) stipulates that the ash content of the yellow flower water lily shall not exceed 2%. Among the two-year-old yellow flower water lily, only the 50℃ drying treatment group processed while fresh meets the standard, and all treatment groups of the three-year-old yellow flower water lily meet the standard. Among the two-year-old yellow flower water lily, the total ash content was the lowest at 1.80% when it was dried at 50℃ for 1 / 6 day (4h) to a moisture content of 19.72%. When the three-year-old yellow flower water lily was processed while fresh and naturally dried for 5 to 9 days and dried at 50℃ for 1 / 6 day (4h) to 2 / 3 day (16h), the total ash content was significantly different from that of the traditional processing (P < 0.05). Among the three-year-old yellow flower water lily, the total ash content was the lowest when it was dried at 50℃ for 1 / 2 day (12h) to a moisture content of 11.3%. Overall, the total ash content of the three-year-old yellow flower water lily is lower than that of the two-year-old.

[0111]

[0112]

[0113] Table 1-6 Ash content of two-year-old yellow-flowered water lily with different processing (%, x±s, n=3)

[0114]

[0115] Table 1-7 Ash content of two-year-old yellow-flowered water lily with different processing (%, x±s, n=3)

[0116] 3.4 Extraction content

[0117] The results are shown in Tables 1-8, 1-9, Figure 5 and Figure 6 . The third volume of the Guangdong Provincial Standard for Traditional Chinese Medicines (2019 edition) stipulates that the content of alcohol-soluble extract of yellow water lily shall not be less than 17%. According to the experimental results, both the two-year-old yellow water lily and the three-year-old yellow water lily meet the standards. From the results, the content of alcohol-soluble extract in the shade-drying treatment group was lower than that in the natural drying treatment group and the 50°C drying treatment group. The highest content of alcohol-soluble extract in the two-year-old yellow water lily was dried at 50°C for 1 / 2 day (12h) to a water content of 19.72%. In the three-year-old yellow water lily, the content was the highest when it was dried at 50°C for 1 / 3 day (8h) to a water content of 34.14%. In general, the content of alcohol-soluble extract in the three-year-old yellow water lily is higher than that in the two-year-old

[0118]

[0119] Table 1-8 Extract contents of two-year-old yellow water lily with different processing (%, x±s, n=3)

[0120]

[0121] Table 1-8 Extract contents of three-year-old yellow-flowered water lily with different processing (%, x±s, n=3)

[0122] 3.5. Total polysaccharide content

[0123] With the concentration of glucose solution as the horizontal axis and the OD value as the vertical axis, the OD value was measured at 490nm, and the standard working curve was drawn. The linear regression equation was measured: A = 2.5709x + 0.0005, R2 = 0.9995. Figure 6 shown.

[0124] From Table 1-10, Table 1-11, Figure 7 and Figure 8 It can be seen that the total polysaccharide content of three-year-old water lilies is lower than that of two-year-old water lilies. The total polysaccharide content of two-year-old water lilies is the highest when they are cut and processed at 50℃ for 1 / 3 day (8h) to a water content of 29.21%. The processing method with the highest total polysaccharide content of three-year-old water lilies is to dry them at 50℃ for 2 / 3 day (16h) to a water content of 13.26%.

[0125]

[0126] Table 1-10 Total polysaccharide content of two-year-old yellow water hyacinth with different processing (%, x±s, n=3)

[0127]

[0128]

[0129] Table 1-11 Total polysaccharide content of three-year-old yellow flower water lily with different processing (%, x±s, n=3)

[0130] 3.6. Total flavonoids content

[0131] The OD value was measured at 510 nm using a UV-visible spectrophotometer, with the blank group as the reference, the rutin concentration as the horizontal axis, and the OD value as the vertical axis. A standard curve was drawn and the linear regression equation was obtained: A = 1.2137x-0.0065, R2 = 0.9993. Fig.10 shown.

[0132] From Table 1-12, Table 1-13, Fig.11 and Fig.12It can be seen that the total flavonoids content of three-year-old yellow water lily is significantly higher than that of two-year-old yellow water lily. The total flavonoids content of the 50℃ drying treatment group is higher than that of the natural drying treatment group and the shade drying treatment group. The total flavonoids content of the two-year-old yellow water lily ranges from 4.72 to 5.78 mg / g, and the total flavonoids content of the processing treatment is the highest when it is dried at 50℃ for 1 / 3 day (8h) to a water content of 29.21%. The total flavonoids content of the three-year-old yellow water lily ranges from 6.49 to 7.48 mg / g, and the total flavonoids content of the cutting treatment is the highest when it is dried at 50℃ for 2 / 3 day (16h) to a water content of 13.26%.

[0133]

[0134]

[0135] Table 1-12 Total flavonoids content of two-year-old yellow water hyacinth with different processing (mg / g, x±s, n=3)

[0136]

[0137] Table 1-13 Total flavonoids content of three-year-old yellow flower water lily with different processing (mg / g, x±s, n=3)

[0138] 3.7. Comprehensive scoring method for optimal processing technology

[0139] The results showed that among the two-year-old yellow water lilies, the E11 group (processed while fresh and dried at 50℃ for 1 / 3 day (8h)) had the highest comprehensive evaluation of 0.71. Among the three-year-old yellow water lilies, the F13 group (processed while fresh and dried at 50℃ for 2 / 3 day (16h)) had the highest comprehensive evaluation of 0.74. See Tables 1-14 and 1-15.

[0140]

[0141] Table 1-14 Comprehensive scores of two-year-old yellow water lilies with different processing

[0142]

[0143] Table 1-15 Comprehensive scores of three-year-old yellow water lilies with different processing

[0144] 4. Discussion

[0145] This experiment used the fresh processing technology to explore the effects of different processing methods on the quality of yellow water lily. The experimental results showed that there were obvious differences in the quality of yellow water lily after different processing. Comparing the two-year-old yellow water lily and the three-year-old yellow water lily, the alcohol-soluble extract content and total flavonoids content of the three-year-old yellow water lily were higher than those of the two-year-old yellow water lily. It is speculated that the quality of the three-year-old yellow water lily is better than that of the two-year-old yellow water lily. Through the comparison of appearance traits, it was found that there was no significant difference between the fresh processing and the traditional processing. Combined with the moisture content change chart, the shade drying process took a long time, and the natural drying was also slow. The drying time of the drying treatment group was significantly reduced. At the same time, the shade drying process took a long time, and the sun drying process was greatly affected by the weather, which was not conducive to the timely processing of fresh medicinal materials, and was prone to mold and deterioration. Therefore, it is considered that the fresh processing and drying process should replace the traditional processing.

[0146] In terms of chemical composition, the alcohol-soluble extract, total polysaccharide and total flavonoid content of the dried water lily were higher than those of the natural drying and shade drying treatments, which may be because the drying treatment shortened the drying time and reduced the loss of effective ingredients. The best fresh processing technology is to dry the three-year-old water lily at 50℃ for 2 / 3 days (16h) until the water content reaches 23.65%, and then cut it.

[0147] Through the research on the fresh cutting and processing of yellow flower water lotus, it is shown that fresh processing can better preserve the active medicinal ingredients in it. The study found that the total flavonoids content of fresh processing is significantly higher than that of traditional medicinal materials. Flavonoids have multiple pharmacological effects such as antioxidant, anti-inflammatory, and antibacterial, indicating that the efficacy of fresh processing of yellow flower water lotus in these aspects is higher than that of traditional processing. At the same time, it also saves time and energy and reduces costs. In general, the fresh processing technology saves time and labor, and the quality of the prepared medicinal pieces is good, which is suitable for industrial production.

[0148] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the claims and their equivalents.

Claims

1. A method for processing yellow water lily, characterized in that: The following steps are involved: The method comprises the following steps: selecting two-day-old or three-year-old yellow water lilies which are picked within three days, washing the yellow water lilies, placing the yellow water lilies in a constant temperature blast drying oven and drying them at a constant temperature of 50 DEG C for 4h-16h, and sending the yellow water lilies to a cutting mechanism for cutting and processing when the water content of the yellow water lilies drops to 11.3%-45.246%.

2. The method for processing the yellow flower water lily according to claim 1, characterized in that: Three-year-old yellow water lily is selected and dried for 16 hours. When the water content of the yellow water lily drops to 20%-30%, it is sent to a cutting mechanism for cutting and processing.

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