Multifunctional composite color developing plant fiber material as well as preparation method and application thereof

Abstract

The invention discloses a multifunctional composite color-developing plant fiber material as well as a preparation method and application thereof, and belongs to the technical field of cat litter. The cat litter is prepared from the following raw materials in parts by weight: 2-3 parts of a deodorant, 10-30 parts of corn starch, 1-5 parts of flour, 1-3 parts of plant fibers, 35-40 parts of an adhesive, 0.5-1 part of sulfanilic acid, 1-3 parts of N-(1-naphthalene)-3-aminopropanesulfonic acid sodium salt, 1-2 parts of hemoglobin peroxidase, 1-2 parts of an indicator and 30-40 parts of a pH indicator. According to the invention, color change indication is carried out according to nitrite, pH value and hemoglobin content in cat urine, and the health state of the cat is detected in time; the cat litter prepared by the invention has a good and stable color-changing indicating effect.

Description

Technical Field

[0001] The invention belongs to the technical field of cat litter, and in particular relates to a multifunctional composite color-developing plant fiber material and a preparation method and application thereof. Background Art

[0002] Feline urolithiasis refers to a type of comprehensive urinary system disease caused by the precipitation of large amounts of salt crystals in urine and the gradual rise of granular salts in the kidneys and bladder. The urethral stones and microliths stimulate and destroy the urinary tract mucosa, leading to urinary tract obstruction with frequent urination, urination disorders, urinary pain, oliguria, hematuria, and anuria as the main clinical manifestations. Cat urolithiasis is a general term for stones in various parts of the urinary system, which are mainly found in the bladder and often appear in the urethra and bladder. This type of stone, also called urinary stone or urinary stone, is essentially composed of minerals or organic matter. Urethral obstruction is also a common complication of feline urolithiasis, especially in male cats, with a high incidence rate. The symptoms of the disease are very acute. If it is not treated promptly and appropriately, it often leads to serious consequences. Feline urolithiasis is not a disease caused by a single cause, but a product of the combined influence of multiple causes. Investigations have shown that factors such as breed, gender, age group, diet and lifestyle have an impact on the formation and elimination of metabolites, so these factors should be considered as potential risk factors for feline urolithiasis. Various factors may be related to the formation of feline urinary stones.

[0003] The existing methods for treating feline urolithiasis include conservative treatment and surgical treatment. The cure rate of conservative treatment is lower than that of surgical treatment, but surgical treatment requires anesthesia risks and is also more damaging. Further research is needed on the treatment and prevention of feline urolithiasis. For cats suspected of having urinary tract problems, urine analysis is an important part of the diagnostic evaluation. Through research, it is found that the chemical environment of urine can affect the formation of urinary stones and indicate what type of urinary stones it is. In addition, through the study of the gastrointestinal flora of cats, the gastrointestinal flora system of healthy cats is huge, and there is a close relationship between intestinal microorganisms and a variety of nutritional metabolic diseases. For example, metabolic diseases such as asthma, inflammatory bowel disease and cardiovascular disease are all related to changes in intestinal flora. The pathophysiological indicators of urinary stones are also affected by intestinal flora to a certain extent. Under the condition of intestinal flora disorder, the white blood cell content in urine is significantly increased, accompanied by increased nitrite and glucose content. Intestinal flora disorder can affect the urine blood indicators of cats under the condition of urolithiasis, accelerate the formation of crystals in urine, and accelerate the development of urolithiasis.

[0004] Therefore, it is necessary to provide a cat litter that can detect cat urine and monitor cat health. Summary of the invention

[0005] In view of the above-mentioned problems existing in the prior art, the first technical problem to be solved by the present invention is to provide a method for preparing a multifunctional composite color-developing plant fiber material. The method is simple and convenient, and the prepared cat litter has stable and accurate indication performance, which can be used for cat health monitoring; the second technical problem to be solved by the present invention is to provide an application of a multifunctional composite color-developing plant fiber material, which can change color and indicate the content of nitrite, hemoglobin and pH value in urine, so as to timely detect the health status of the cat.

[0006] In order to solve the above problems, the technical solution adopted by the present invention is as follows:

[0007] A method for preparing a multifunctional composite color-developing plant fiber material is provided. The multifunctional composite color-developing plant fiber material is prepared from the following raw materials in parts by weight: 2-3 parts of a deodorant, 10-30 parts of corn starch, 1-5 parts of flour, 1-3 parts of plant fiber, 35-40 parts of an adhesive, 0.5-1 parts of p-aminobenzenesulfonic acid, 1-3 parts of sodium salt of N-(1-naphthalene)-3-aminopropanesulfonic acid, 1-2 parts of hemoglobin peroxidase, 1-2 parts of an indicator and 30-40 parts of a pH indicator.

[0008] Furthermore, the deodorant is a mixture of coconut shell granular activated carbon, grape seed extract and tea polyphenol extract.

[0009] Furthermore, the mass ratio of the coconut shell granular activated carbon, grape seed extract and tea polyphenol extract is 10-20:1-3:5-10.

[0010] Furthermore, the binder is a 0.3% to 0.5% aqueous solution of sodium carboxymethyl cellulose.

[0011] Furthermore, the plant fiber is sugarcane fiber; and the indicator is tetramethylbenzidine.

[0012] Furthermore, the pH indicator is bromocresol green, phenolphthalein and 95% ethanol, wherein the mass portion of bromocresol green is 0.5-1.0 parts, the mass portion of phenolphthalein is 5-10 parts, and the mass portion of 95% ethanol is 100-120 parts.

[0013] The preparation method of the cat urine nitrite indicating cat litter comprises the following steps:

[0014] 1) Add deodorant, corn starch, flour, plant fiber, adhesive, p-aminobenzenesulfonic acid, sodium salt of N-(1-naphthalene)-3-aminopropanesulfonic acid, hemoglobin peroxidase and indicator into water and stir evenly into a paste;

[0015] 2) drying the paste obtained in step 1) at 150°C;

[0016] 3) Add the pH indicator to step 2) and add 95% ethanol to homogenize;

[0017] 4) drying the mixed slurry obtained in step 3), granulating, and then drying the obtained granules again, screening with a vibrating screen, and obtaining cat urine nitrite indicating cat litter.

[0018] Furthermore, in step 1), the water content of the paste is 25% to 30%.

[0019] Furthermore, in step 2), the moisture content of the dried paste is 10% to 13%.

[0020] Furthermore, in step 3), the drying temperature is 60-65°C.

[0021] Beneficial effects: Compared with the prior art, the advantages of the present invention are:

[0022] (1) In the cat litter prepared by the present invention, the nitrite in cat urine first reacts with p-aminobenzenesulfonic acid to generate a diazo compound, and the diazo compound then combines with N-(1-naphthalene)-3-aminopropanesulfonic acid sodium salt to present a pink color. Depending on the level of nitrite, the cat litter presents different shades of color, so that the health status of the cat can be monitored in time.

[0023] (2) The cat litter prepared by the present invention monitors the health status of a cat based on the nitrite content in the cat's urine. The urine of a healthy cat does not contain nitrite. If the urine contains Escherichia coli and other Enterobacteriaceae, the nitrate in the urine is reduced to nitrite, and the cat litter will turn pink, indicating that the cat's intestinal flora is disordered and there is a possibility of urinary stones.

[0024] (3) The cat litter prepared by the present invention can monitor the health of a cat based on the pH value of cat urine by the pH indicator. Normal cat urine is weakly acidic with a pH value of 5.5 to 7.5. If the pH value is lower than 5.5, the indicator is blue-green to yellow. When the pH value is greater than 8.5, the indicator is red to purple-red.

[0025] (4) The cat litter prepared by the present invention can be used to detect the health status of a cat based on the hemoglobin content. The normal urine hemoglobin of a cat is 0.15 mg / L. If the content exceeds the upper limit, the color will turn blue as the hemoglobin concentration increases.

[0026] (5) The cat litter prepared by the present invention is accurate and stable in testing, and is convenient for abnormal color development prompts. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with specific embodiments.

[0028] Example 1

[0029] The preparation steps of cat urine nitrite indicator cat litter are as follows:

[0030] 1) Add 3 parts of deodorant, 30 parts of corn starch, 5 parts of flour, 3 parts of sugarcane fiber, 40 parts of 0.3% sodium carboxymethyl cellulose aqueous solution, 1 part of p-aminobenzenesulfonic acid, 3 parts of N-(1-naphthalene)-3-aminopropanesulfonic acid sodium salt, 2 parts of hemoglobin peroxidase and 2 parts of tetramethylbenzidine into water, and stir evenly into a paste; wherein the deodorant is a mixture of coconut shell granular activated carbon, grape seed extract and tea polyphenol extract in a mass ratio of 10:1:5; the water content of the paste is 30%;

[0031] 2) drying the paste obtained in step 1) at 150° C., wherein the water content of the dried paste is 13%;

[0032] 3) Add 1.0 part of bromocresol green and 10 parts of phenolphthalein to step 2), and then add 120 parts of 95% ethanol to homogenize;

[0033] 4) drying the mixed slurry obtained in step 3) at 150° C. and granulating the granules to a particle size of 3 mm, and then drying the granules and screening them with a vibrating screen to obtain cat urine nitrite indicating cat litter at a drying temperature of 65° C.

[0034] Example 2

[0035] The preparation steps of cat urine nitrite indicator cat litter are as follows:

[0036] 1) By weight, add 3 parts of deodorant, 30 parts of corn starch, 5 parts of flour, 3 parts of sugarcane fiber, 40 parts of 0.3% sodium carboxymethyl cellulose aqueous solution, 0.5 parts of p-aminobenzenesulfonic acid and 2 parts of N-(1-naphthalene)-3-aminopropanesulfonic acid sodium salt, 2 parts of hemoglobin peroxidase and 2 parts of tetramethylbenzidine into water, and stir evenly into a paste; wherein the deodorant is a mixture of coconut shell granular activated carbon, grape seed extract and tea polyphenol extract in a mass ratio of 10:1:5; the water content of the paste is 30%;

[0037] 2) drying the paste obtained in step 1) at 150° C., wherein the water content of the dried paste is 13%;

[0038] 3) Add 1.0 part of bromocresol green and 10 parts of phenolphthalein to step 2), and then add 120 parts of 95% ethanol to homogenize;

[0039] 4) drying the mixed slurry obtained in step 3) at 150° C. and granulating the granules to a particle size of 3 mm, and then drying the granules and screening them with a vibrating screen to obtain cat urine nitrite indicating cat litter at a drying temperature of 65° C.

[0040] Example 3

[0041] The preparation steps of cat urine nitrite indicator cat litter are as follows:

[0042] 1) Add 3 parts of deodorant, 30 parts of corn starch, 5 parts of flour, 3 parts of sugarcane fiber, 40 parts of 0.3% sodium carboxymethyl cellulose aqueous solution, 0.5 parts of p-aminobenzenesulfonic acid and 1 part of N-(1-naphthalene)-3-aminopropanesulfonic acid sodium salt, 2 parts of hemoglobin peroxidase and 2 parts of tetramethylbenzidine into water, and stir evenly into a paste; wherein the deodorant is a mixture of coconut shell granular activated carbon, grape seed extract and tea polyphenol extract in a mass ratio of 10:1:5; the water content of the paste is 30%;

[0043] 2) drying the paste obtained in step 1) at 150° C., wherein the water content of the dried paste is 13%;

[0044] 3) Add 1.0 part of bromocresol green and 10 parts of phenolphthalein to step 2), and then add 120 parts of 95% ethanol to homogenize;

[0045] 4) drying the mixed slurry obtained in step 3) at 150° C. and granulating the granules to a particle size of 3 mm, and then drying the granules and screening them with a vibrating screen to obtain cat urine nitrite indicating cat litter at a drying temperature of 65° C.

[0046] Example 4

[0047] The preparation steps of cat urine nitrite indicator cat litter are as follows:

[0048] 1) Add 3 parts of deodorant, 30 parts of corn starch, 3 parts of flour, 2 parts of sugarcane fiber, 35 parts of 0.3% sodium carboxymethyl cellulose aqueous solution, 0.8 parts of p-aminobenzenesulfonic acid and 2 parts of N-(1-naphthalene)-3-aminopropanesulfonic acid sodium salt, 1 part of hemoglobin peroxidase and 1 part of tetramethylbenzidine into water, and stir evenly into a paste; wherein the deodorant is a mixture of coconut shell granular activated carbon, grape seed extract and tea polyphenol extract in a mass ratio of 10:1:5; the water content of the paste is 30%;

[0049] 2) drying the paste obtained in step 1) at 150° C. and granulating the paste; wherein the moisture content of the dried paste is 13%;

[0050] 3) Add 0.5 parts of bromocresol green and 5 parts of phenolphthalein to step 2), and then add 100 parts of 95% ethanol to homogenize;

[0051] 4) drying the mixed slurry obtained in step 3) at 150° C. and granulating the granules to a particle size of 3 mm, and then drying the granules and screening them with a vibrating screen to obtain cat urine nitrite indicating cat litter at a drying temperature of 65° C.

[0052] Example 5

[0053] Cat litter indicator effect test

[0054] Take 200g of cat litter prepared in Examples 1 to 4 (the prepared cat litter is white), pour into 1g / 100mL urea aqueous solution, the content of nitrite in the urea aqueous solution is 0μg / mL, 0.05μg / mL, 0.06μg / mL, 0.07μg / mL, 0.08μg / mL, 0.09μg / mL and 1μg / mL, observe the color change and time, the results are shown in Table 1 below.

[0055] Table 1 Cat litter indicator effect test results of Examples 1 to 4

[0056]

[0057] Table 1 is the test results of the cat litter indication effect prepared in Examples 1 to 4. It can be seen from the table that the cat litter prepared in Examples 1 to 4 of the present invention has an excellent color indication effect, and the indication color change can be completed in a relatively short time. With the concentration of nitrite in the urea aqueous solution, the color also presents different shades of pink, and the concentration range of nitrite in urine is further determined. The indication range is more accurate, and the physical condition of the cat can be better detected.

[0058] Example 6

[0059] Cat litter water absorption and agglomeration performance test

[0060] Take 200g of the cat litter prepared in Examples 1 to 4, pour in 1g / 100mL of urea in physiological saline, and take the water absorption as the standard when the cat litter is placed in a container without dripping after adding water to form a mass, record the water absorption and time. The results are shown in Table 2 below.

[0061] Table 2 Cat litter water absorption and agglomeration performance test of Examples 1 to 4

[0062]

[0063] Table 2 is a test of the water absorption and agglomeration performance of cat litters in Examples 1 to 4. It can be seen from the table that the cat litters prepared in Examples 1 to 4 of the present invention have excellent water absorption and agglomeration properties, can quickly absorb water and agglomerate, and have a large water absorption capacity.

[0064] Example 7

[0065] Cat litter deodorization performance test

[0066] Take 80g of cat litter prepared in Examples 1 to 4, add 1mL of 2% ammonia water, put it in a sealed container and wait for 5 minutes to observe whether there is any odor residue. If the odor residue is not obvious or not, add 2% ammonia water again, seal it again for 5 minutes, follow the above steps, add until the odor remains, and record the amount of ammonia water added. The results are shown in Table 3 below.

[0067] Table 3 Cat litter deodorization performance test results of Examples 1 to 4

[0068]

[0069] Table 3 is the test results of the deodorization performance of cat litters in Examples 1 to 4. It can be seen from the table that the cat litters prepared in Examples 1 to 4 of the present invention have excellent deodorization performance, and the ammonia absorption of 80g of cat litters is higher than 60mmol, and can reach up to 66.5mmol.

[0070] Example 8

[0071] Cat litter antibacterial performance test

[0072] The cat litter prepared in Examples 1 to 4 was placed on a culture medium coated with Escherichia coli and Staphylococcus aureus, cultured at 37° C. for 24 h, and the diameter of the inhibition zone was measured. The results are shown in Table 4 below.

[0073] Table 4 Antibacterial performance test results of cat litter in Examples 1 to 4

[0074]

[0075] Table 4 is the test results of the antibacterial performance of cat litters in Examples 1 to 4. It can be seen from the table that the cat litters prepared in Examples 1 to 4 of the present invention have excellent inhibitory effects on Escherichia coli and Staphylococcus aureus, and Example 4 has the best antibacterial effects on Escherichia coli and Staphylococcus aureus.

[0076] Example 9

[0077] Cat litter occult blood performance test

[0078] Take 200g of the cat litter prepared in Examples 1 to 4, add 0mg / L, 0.1mg / L and 0.15mg / L hemoglobin solutions, observe the color change, and the results are shown in Table 5 below.

[0079] Table 5 Cat litter occult blood test results of Examples 1 to 4

[0080]

[0081] Table 5 is the test results of the hemoglobin color change of the cat litter prepared in Examples 1 to 4. It can be seen from the table that the cat litter prepared in Examples 1 to 4 of the present invention has an excellent color indication effect. 0.15 mg / L is the upper limit of the normal urine hemoglobin content of a cat. As the hemoglobin concentration increases, the color will appear blue, which can better detect the physical condition of the cat.

[0082] Example 10

[0083] Cat litter pH performance test

[0084] Take 200 g of the cat litter prepared in Examples 1 to 4, pour 1 g / 100 mL of pH=3.5, pH=5.5, pH=6.0, pH=7.5, pH=8.5, pH=10.0 urea aqueous solution, observe the color change, and the results are shown in Table 6 below.

[0085] Table 6 pH value test results of cat litter in Examples 1 to 4

[0086]

[0087] Table 6 is the test results of the pH value of the cat litter prepared in Examples 1 to 4. It can be seen from the table that the cat litter prepared in Examples 1 to 4 of the present invention has an excellent color indication effect. The cat litter changes from yellow to blue-green when the pH of the urea aqueous solution is 3.5-5.5, the cat litter does not change color when the pH of the urea aqueous solution is 5.5-7.5, and the cat litter changes from light red to purple-red when the pH of the urea aqueous solution is 8.5-10.0. The range of pH value in urine is further determined, and the indication range is correct, which can better detect the physical condition of the cat.

Claims

1. A method for preparing a multifunctional composite color-developing plant fiber material, characterized in that: The invention is prepared from the following raw materials in parts by weight: 2-3 parts of deodorant, 10-30 parts of corn starch, 1-5 parts of flour, 1-3 parts of plant fiber, 35-40 parts of adhesive, 0.5-1 parts of p-aminobenzenesulfonic acid, 1-3 parts of N-(1-naphthalene)-3-aminopropanesulfonic acid sodium salt, 1-2 parts of hemoglobin peroxidase, 1-2 parts of indicator and 30-40 parts of pH indicator.

2. The method for preparing the multifunctional composite color-developing plant fiber material according to claim 1, characterized in that: The deodorant is a mixture of coconut shell granular activated carbon, grape seed extract and tea polyphenol extract.

3. The method for preparing the multifunctional composite color-developing plant fiber material according to claim 2, characterized in that: The mass ratio of the coconut shell granular activated carbon, the grape seed extract and the tea polyphenol extract is 10-20:1-3:5-10.

4. The method for preparing the multifunctional composite color-developing plant fiber material according to claim 1, characterized in that: The binder is a 0.3% to 0.5% sodium carboxymethyl cellulose aqueous solution.

5. The method for preparing the multifunctional composite color-developing plant fiber material according to claim 1, characterized in that: The plant fiber is sugarcane fiber; and the indicator is tetramethylbenzidine.

6. The method for preparing the multifunctional composite color-developing plant fiber material according to claim 1, characterized in that: The pH indicator is bromocresol green, phenolphthalein and 95% ethanol, wherein the mass portion of bromocresol green is 0.5-1.0 parts, the mass portion of phenolphthalein is 5-10 parts, and the mass portion of 95% ethanol is 100-120 parts.

7. The method for preparing the multifunctional composite color-developing plant fiber material according to any one of claims 1 to 6, characterized in that: The steps include: 1) Add deodorant, corn starch, flour, plant fiber, adhesive, p-aminobenzenesulfonic acid, sodium salt of N-(1-naphthalene)-3-aminopropanesulfonic acid, hemoglobin peroxidase and indicator into water and stir evenly into a paste; 2) drying the paste obtained in step 1) at 150°C; 3) Add the pH indicator to step 2) and add 95% ethanol to homogenize; 4) drying the mixed slurry obtained in step 3), granulating, and then drying the obtained granules again, screening with a vibrating screen, and obtaining cat urine nitrite indicating cat litter.

8. The method for preparing the multifunctional composite color-developing plant fiber material according to claim 7, characterized in that: In step 1), the water content of the paste is 25% to 30%.

9. The method for preparing the multifunctional composite color-developing plant fiber material according to claim 7, characterized in that: In step 2), the moisture content of the dried paste is 10% to 13%.

10. The method for preparing the multifunctional composite color-developing plant fiber material according to claim 7, characterized in that: In step 3), the drying temperature is 60-65°C.

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