CN118696839A - A kind of deodorizing and antibacterial cat litter and preparation method thereof - Google Patents
A kind of deodorizing and antibacterial cat litter and preparation method thereof Download PDFInfo
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/015—Floor coverings, e.g. bedding-down sheets ; Stable floors
- A01K1/0152—Litter
- A01K1/0154—Litter comprising inorganic material
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/015—Floor coverings, e.g. bedding-down sheets ; Stable floors
- A01K1/0152—Litter
- A01K1/0155—Litter comprising organic material
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Abstract
本发明涉及制糖技术领域，特别涉及一种除臭抑菌型猫砂及其制备方法，所述除臭抑菌型猫砂主要由如下重量份的原料制成：蔗渣70‑80份、蔗渣活性炭1‑3份、改性蔗渣木质素5‑9份、瓜尔豆胶4‑7份和水6‑8份；本申请在保证猫砂具有较强吸水性和结团性的基础上，增强猫砂的除臭性和抑菌性，避免出现宠物猫养殖过程产生令人不悦气味以及细菌滋长的情况出现。The invention relates to the technical field of sugar making, and in particular to a deodorizing and antibacterial cat litter and a preparation method thereof. The deodorizing and antibacterial cat litter is mainly made of the following raw materials in parts by weight: 70-80 parts of bagasse, 1-3 parts of bagasse activated carbon, 5-9 parts of modified bagasse lignin, 4-7 parts of guar gum and 6-8 parts of water. The application enhances the deodorizing and antibacterial properties of the cat litter on the basis of ensuring that the cat litter has strong water absorption and agglomeration properties, and avoids the occurrence of unpleasant odors and bacterial growth in the breeding process of pet cats.
Description
[ Field of technology ]
The invention relates to the technical field of cat litter, in particular to deodorizing and antibacterial cat litter and a preparation method thereof.
[ Background Art ]
In recent years, pet feeding has become popular and gradually trend in the global scope, wherein pet cats are warm and smooth in character, lovely in appearance, convenient to feed, free from taking outdoor play every day, increasingly popular, and become human feeding pets next to dogs. With the popularization of pet cat feeding, how to scientifically and healthily treat the excrement becomes a troublesome problem. Cat litter is generally defined as a material used to treat pet cat litter that has a good absorbency and is generally used with a litter box in which a suitable amount of litter is poured and upon which a trained cat will run when it is desired to discharge. Since the advent of cat litter, it has become increasingly convenient to solve the problem of pet cat excretion indoors from the initial simulation of sandy soil to the convenient collection of fecal non-coagulated cat litter to the now coagulated cat litter, such as crystal cat litter, bentonite cat litter, bean curd cat litter, and the like. The global pet product value estimated from global market insight 2019 would reach 2690 million dollars in 2019, and the cat litter (clay and biologicals) market value would be about 39 million dollars, estimated to reach 54 million dollars sales by 2025, accounting for 50% of the major market share in north america. The global cat litter market total reaches 323 billions in 2019, which is expected to increase to 415 billions in 2026, with a annual compound growth rate of 3.6%. Since 2013, the sales volume of cat litter in China increases rapidly, the annual growth rate increases to 23.3 ten thousand tons in 2017, and reaches 17.46%; the popularity of cat litter in the Chinese market is rapidly increasing, and the market sales of cat litter in China is expected to reach 89.2 ten thousand tons in 2024 years. It follows that cat litter is in great demand in the global market and rises year by year.
However, at present, various cat litters in the cat litter market are good and bad, and the feeding owner mainly pays attention to the problems of water absorption, caking property, deodorization, bacteriostasis and the like when selecting cat litters. In recent years, cat litter commonly found in the market mainly has strong water absorbability and caking property, but weak deodorizing property and antibacterial property. The thiol volatile substances contained in the cat feces are inhaled by human body more, so that negative emotion can be generated and the body health is hurt. Meanwhile, the storage time of the cat litter in the cat litter box is at least about two weeks, and harmful bacteria are easy to breed due to the long storage time, so that the health of the cat and the host is affected. Therefore, the cat litter has strong water absorption and caking property, and meanwhile, the deodorizing and antibacterial performances of the cat litter are improved, so that a more comfortable and healthy environment is created for pet cats and raising owners.
Patent document CN114391478a discloses a preparation method of degradable antibacterial deodorizing cat litter, which comprises the steps of mixing and crushing plant fibers, bean curd residue powder, corn starch and puffed corn powder, and adding adhesive, preservative and antibacterial deodorizing powder (silver titanium powder) into the mixture to prepare cat litter so as to realize deodorizing and antibacterial properties, wherein the deodorizing property can reach more than 90%, and the antibacterial property can reach 99.999%. However, the silver-titanium powder has high cost, industrial production is difficult to realize, and the odor substances used by the invention are formaldehyde, trimethylamine, methyl mercaptan, ammonia gas and hydrogen sulfide, which are typical odor substances in the environment and are not direct odor substances in cat feces; patent document CN112841050a discloses a pure natural environment-friendly bean curd cat litter with antibacterial and deodorizing functions, wherein the deodorizing agent is one or a combination of more of tea polyphenol, houttuynia cordata extract and garlic powder, the bamboo fiber is a main base material, and the bamboo fiber also contains flavone extract as a bacteriostatic agent, so that the sterilizing rate of the bamboo fiber on salmonella, escherichia coli, mould fungi and other fungi is 97% -98%, although the prepared cat litter product has a certain faint scent, and the added tea polyphenol and other substances have a certain deodorizing property, the invention has no specific numerical description on the deodorizing property research of the cat litter, and the added bamboo powder, tea polyphenol, houttuynia cordata and other extracts have high cost and are difficult to realize industrial production.
In summary, although some patent researches for improving the antibacterial and deodorizing properties of the cat litter exist at present, the deodorizing properties of the cat litter in the patent are not specific and direct, and the deodorizing properties of the cat litter on the odor substances existing in the cat feces are not purposefully studied, so that the deodorizing properties of the cat litter are intuitively reflected. In addition, the storage time of the cat litter in the cat litter box is at least about two weeks, and the cat litter is required to have strong deodorization and bacteriostasis due to the longer storage time. However, the deodorizing property of the cat litter of the plant fiber type at present is mostly only dependent on the structure of the plant fiber and the peculiar fragrance thereof, and the deodorizing capability is limited. And the improvement of the antibacterial property of the cat litter mainly depends on the addition of the antibacterial agent, and the research and development of the improvement of the antibacterial property of the cat litter are limited by the safety and the higher price of the cat litter.
In view of the foregoing, there is a strong need for a litter that has a strong deodorizing effect on the malodorous substances that are characteristic of cat feces, a strong bacteriostatic effect on the presence of a large number of pathogenic bacteria in cat feces, and a composition that does not affect the health and safety of pet cats and their owners.
[ Invention ]
In view of the above, it is necessary to provide a deodorizing and antibacterial cat litter and a preparation method thereof, which can obviously enhance the deodorizing and antibacterial properties of cat litter on the basis of ensuring that bagasse cat litter has stronger water absorption and caking properties.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the deodorizing and antibacterial cat litter is mainly prepared from the following raw materials in parts by weight: 70-80 parts of bagasse, 1-3 parts of bagasse active carbon, 5-9 parts of modified bagasse lignin, 4-7 parts of guar gum and 6-8 parts of water.
Furthermore, the deodorizing and antibacterial cat litter is mainly prepared from the following raw materials in parts by weight: 75 parts of bagasse, 2 parts of bagasse activated carbon, 6 parts of modified bagasse lignin, 5 parts of guar gum and 7 parts of water.
Further, the bagasse active carbon is obtained by the following method: mixing bagasse, H 3PO4 and HNO 3 according to the mass ratio of 1-2:2-3:2-3, performing ultrasonic treatment on the obtained mixture for 25-35min under the ultrasonic power of 450-550W, standing for 24H at room temperature, drying at 110-130 ℃ for 24H after standing, burning for 0.4-0.6H at the high temperature of 650-750 ℃ in a muffle furnace, cleaning the obtained product with deionized water, and finally heating and drying the cleaned product in an oven at 100-110 ℃ to constant weight to obtain the bagasse active carbon.
Further, the mass fraction of H 3PO4 is 25%, and the mass fraction of HNO 3 is 15%.
Further, the preparation method of the modified bagasse lignin comprises the following steps:
1) Separating and purifying bagasse lignin from black liquor: diluting the concentrated black liquor by 9-11 times with distilled water, adding sulfuric acid to adjust the pH of the solution to 2, standing for 2-4 hours, centrifugally collecting solids, washing the solids with dilute acid with the pH value of 2 for 2-4 times, washing the solids with deionized water for 2-4 times, and freeze-drying in a vacuum freeze dryer for 36 hours to obtain bagasse crude lignin; dissolving bagasse crude lignin in a methanol-acetone mixture to obtain lignin solution, dripping the lignin solution into diethyl ether to precipitate lignin, centrifuging to collect lignin, washing with diethyl ether for 2-4 times, and vacuum drying at 35-45deg.C to obtain solid which is purified crude bagasse lignin; the diluted acid is selected from diluted hydrochloric acid.
2) Weighing choline chloride and formic acid with the molar ratio of 1:2 in a round-bottom flask, putting the round-bottom flask into the round-bottom flask, adding a rotor, putting the round-bottom flask into a heat-collecting constant-temperature heating magnetic stirrer, setting the temperature to 55-65 ℃, heating the stirrer to 95-105 ℃ after all solids in the round-bottom flask are molten to a transparent state, adding aluminum chloride hexahydrate, continuously stirring and heating until all solids in the system are molten, stopping stirring after the solution is transparent, and cooling the solution to room temperature without crystal precipitation to obtain a ternary eutectic solvent; and (3) mixing the ternary eutectic solvent and the original bagasse lignin in a reaction kettle according to the solid-to-liquid ratio of 1:18-22, reacting for 3-5 hours at 115-125 ℃, cooling the reaction kettle to room temperature, and mixing the obtained product with deionized water to obtain a precipitate, namely the modified bagasse lignin.
The above solid-liquid ratio refers to the mass ratio of solids to liquids.
Further, the mass fraction of sulfuric acid in the step 1) is 50%.
Further, the methanol-acetone mixture is prepared by mixing methanol and acetone according to a volume ratio of 7:3; the feed liquid ratio of the bagasse crude lignin to the methanol-acetone mixture is 1g:3-4mL.
The invention also provides a preparation method of the deodorizing and antibacterial cat litter, which comprises the following steps:
(1) Pretreatment of bagasse: soaking bagasse in water for 3-5h, filtering, drying in a blast drying oven at 100-110 ℃ for 11-13h, crushing, and sieving with a 25-35 mesh sieve to obtain treated bagasse for later use;
(2) Primary stirring: mixing the treated bagasse, guar gum and water, and fully stirring to obtain a stirring material;
(3) Secondary stirring: weighing bagasse active carbon and modified bagasse lignin, and adding the bagasse active carbon and the modified bagasse lignin into the stirring material in the step (1) to stir to obtain cat litter;
(4) Granulating and forming: granulating and molding the cat litter material obtained in the step (3) by adopting an extrusion granulator, drying by using a blast drying oven, cooling, screening and metering after cooling to obtain deodorizing and antibacterial cat litter, and storing in the drying oven for later use.
Further, the temperature of water used for soaking bagasse in the step (1) is 60-80 ℃.
Further, the temperature of the primary stirring water in the step (2) is 100 ℃.
The invention has at least the following beneficial effects:
1. Aiming at the problem that odor substances in cat feces are not removed fundamentally in the prior art, the application provides natural environment-friendly cat litter with antibacterial and deodorizing functions, which takes characteristic odor substances (3-thio-3-methyl-1-butanol) in cat feces as a removal object, takes harmful bacteria such as escherichia coli and salmonella which are long in pet feces as an antibacterial object, and adds self-made nontoxic bagasse activated carbon and bagasse lignin into the cat litter, so that the deodorizing and antibacterial properties of the cat litter are obviously enhanced on the basis of ensuring that the bagasse cat litter has stronger water absorption and caking properties.
2. According to the application, bagasse activated carbon reaching the primary activated carbon standard (iodine value adsorption capacity is more than 1000 mg/g) is added into bagasse cat litter, and the removal rate of the bagasse activated carbon to characteristic odor substances (3-thio-3-methyl-1-butanol) in cat feces can reach 95.64% through test verification; in addition, the modified bagasse cat litter is added, the phenolic hydroxyl content in the lignin is helpful for improving the antibacterial effect, the modified bagasse cat litter can destroy cell membranes, denature proteins and inhibit the activities of a respiratory system and an electron transfer enzyme system of microbial cells, so that the efficient antibacterial effect is achieved, the antibacterial rate of the cat litter to escherichia coli and salmonella is respectively 98.32% and 97.58%, the caking rate of the bagasse cat litter is 86.8%, and according to the market demands and the needs of a fodder owner, in use, the caking rate of the cat litter is at least about 60% at the lowest acceptable level, therefore, the caking rate can meet the market demands, the bagasse cat litter also has good performance in terms of water absorption, and due to the bagasse treated by the method, the bagasse is used for removing sugar and wax in advance, and is moist when meeting water, and has a certain water absorption and water retention property.
[ Detailed description ] of the invention
The following detailed description of the present invention will provide further details in order to make the above-mentioned objects, features and advantages of the present invention more comprehensible. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the invention, which is therefore not limited to the specific embodiments disclosed below.
Example 1:
The embodiment discloses deodorization and bacteriostasis type cat litter, which is mainly prepared from the following raw materials in parts by weight: 70 parts of bagasse, 1 part of bagasse activated carbon, 5 parts of modified bagasse lignin, 4 parts of guar gum and 6 parts of water;
The bagasse active carbon is obtained by the following method: mixing bagasse, 25wt.% H 3PO4 and 15wt.% HNO 3 according to the mass ratio of 1:2:2, performing ultrasonic treatment on the obtained mixture for 25min under the ultrasonic power of 450W, standing for 24H at room temperature, drying for 24H at 110 ℃ after standing, burning for 0.4H at a high temperature of 650 ℃ in a muffle furnace, cleaning the obtained product with deionized water, completely removing unreacted acid, and finally heating and drying the cleaned product to constant weight at 100 ℃ in an oven to obtain the bagasse active carbon;
The preparation method of the modified bagasse lignin comprises the following steps: 1) Separating and purifying bagasse lignin from black liquor: diluting the concentrated black liquor by 9 times with distilled water, adding 50wt.% sulfuric acid to adjust the pH of the solution to 2, standing for 2 hours, centrifugally collecting solids, washing the solids with dilute acid with the pH value of 2 for 2 times, washing the solids with deionized water for 2 times, and freeze-drying in a vacuum freeze dryer for 36 hours to obtain bagasse crude lignin; dissolving bagasse crude lignin in a methanol-acetone mixture to obtain lignin solution, dripping the lignin solution into diethyl ether to precipitate lignin, centrifuging to collect lignin, washing with diethyl ether for 2 times, and vacuum drying at 35 ℃ to obtain solid, namely purified raw bagasse lignin; the methanol-acetone mixture is prepared by mixing methanol and acetone according to a volume ratio of 7:3; the feed liquid ratio of the bagasse crude lignin to the methanol-acetone mixture is 1g to 3mL; 2) Weighing choline chloride and formic acid with the molar ratio of 1:2 in a round-bottom flask, putting the round-bottom flask into the round-bottom flask, adding a rotor, putting the round-bottom flask into a heat-collecting constant-temperature heating magnetic stirrer, setting the temperature to 55 ℃, heating the stirrer to 95 ℃ after all solids in the round-bottom flask are molten to a transparent state, adding aluminum chloride hexahydrate with the molar ratio of 1:0.1, continuing stirring and heating, stopping stirring after all solids in the system are molten, and cooling the solution to room temperature without crystal precipitation to obtain a ternary eutectic solvent; and (3) mixing the ternary eutectic solvent and the original bagasse lignin in a reaction kettle according to the solid-liquid (mass) ratio of 1:18, reacting for 3 hours at 115 ℃, cooling the reaction kettle to room temperature, and mixing the obtained product with deionized water to obtain a precipitate, namely the modified bagasse lignin.
The preparation method of the deodorizing and antibacterial cat litter of the embodiment comprises the following steps:
(1) Pretreatment of bagasse: soaking bagasse in water at 60deg.C for 3hr, removing sugar and wax, suction filtering, drying in a blast drying oven at 100deg.C for 11 hr, pulverizing, and sieving with 25 mesh sieve to obtain treated bagasse;
(2) Primary stirring: mixing the treated bagasse, guar gum and hot water at 90 ℃ and fully stirring to obtain a stirring material;
(3) Secondary stirring: weighing bagasse active carbon and modified bagasse lignin, and adding the bagasse active carbon and the modified bagasse lignin into the stirring material in the step (1) to stir to obtain cat litter;
(4) Granulating and forming: granulating and molding the cat litter material obtained in the step (3) by adopting an extrusion granulator, drying by using a blast drying oven, cooling, screening and metering after cooling to obtain deodorizing and antibacterial cat litter, and storing in the drying oven for later use.
Example 2:
The embodiment discloses deodorization and bacteriostasis type cat litter, which is mainly prepared from the following raw materials in parts by weight: 75 parts of bagasse, 2 parts of bagasse activated carbon, 6 parts of modified bagasse lignin, 5 parts of guar gum and 7 parts of water;
The bagasse active carbon is obtained by the following method: mixing bagasse, 25wt.% H 3PO4 and 15wt.% HNO 3 according to the mass ratio of 1:2:2, performing ultrasonic treatment on the obtained mixture for 30min under the ultrasonic power of 500W, standing for 24H at room temperature, drying for 24H at 120 ℃ after standing, burning for 0.5H at the high temperature of 700 ℃ in a muffle furnace, cleaning the obtained product with deionized water, completely removing unreacted acid, and finally heating and drying the cleaned product to constant weight at 105 ℃ in an oven to obtain the bagasse active carbon;
The preparation method of the modified bagasse lignin comprises the following steps: 1) Separating and purifying bagasse lignin from black liquor: diluting the concentrated black liquor by 10 times with distilled water, adding 50wt.% sulfuric acid to adjust the pH of the solution to 2, standing for 3 hours, centrifugally collecting solids, washing the solids with dilute acid with the pH value of 2 for 3 times, washing the solids with deionized water for 3 times, and freeze-drying in a vacuum freeze dryer for 36 hours to obtain bagasse crude lignin; dissolving bagasse crude lignin in a methanol-acetone mixture to obtain lignin solution, dripping the lignin solution into diethyl ether to precipitate lignin, centrifuging to collect lignin, washing with diethyl ether for 3 times, and vacuum drying at 40 ℃ to obtain solid, namely purified raw bagasse lignin; the methanol-acetone mixture is prepared by mixing methanol and acetone according to a volume ratio of 7:3; the feed liquid ratio of the bagasse crude lignin to the methanol-acetone mixture is 1g:3.5mL; 2) Weighing choline chloride and formic acid with the molar ratio of 1:2 in a round-bottom flask, putting the round-bottom flask into the round-bottom flask, adding a rotor, putting the round-bottom flask into a heat-collecting constant-temperature heating magnetic stirrer, setting the temperature to 60 ℃, heating the stirrer to 100 ℃ after all solids in the round-bottom flask are molten to a transparent state, adding aluminum chloride hexahydrate with the molar ratio of 1:0.1, continuing stirring and heating, stopping stirring after all solids in the system are molten, and cooling the solution to room temperature without crystal precipitation to obtain a ternary eutectic solvent; and (3) mixing the ternary eutectic solvent and the original bagasse lignin in a reaction kettle according to the solid-to-liquid ratio of 1:20, reacting for 4 hours at 120 ℃, cooling the reaction kettle to room temperature, and mixing the obtained product with deionized water to obtain a precipitate, namely the modified bagasse lignin.
The preparation method of the deodorizing and antibacterial cat litter of the embodiment comprises the following steps:
(1) Pretreatment of bagasse: soaking bagasse in water at 70deg.C for 4 hr, removing sugar and wax, suction filtering, drying in a blast drying oven at 105deg.C for 12 hr, pulverizing, and sieving with 30 mesh sieve to obtain treated bagasse;
(2) Primary stirring: mixing the treated bagasse, guar gum and hot water at 90 ℃ and fully stirring to obtain a stirring material;
(3) Secondary stirring: weighing bagasse active carbon and modified bagasse lignin, and adding the bagasse active carbon and the modified bagasse lignin into the stirring material in the step (1) to stir to obtain cat litter;
(4) Granulating and forming: granulating and molding the cat litter material obtained in the step (3) by adopting an extrusion granulator, drying by using a blast drying oven, cooling, screening and metering after cooling to obtain deodorizing and antibacterial cat litter, and storing in the drying oven for later use.
Example 3:
the embodiment discloses deodorization and bacteriostasis type cat litter, which is mainly prepared from the following raw materials in parts by weight: 80 parts of bagasse, 3 parts of bagasse activated carbon, 9 parts of modified bagasse lignin, 7 parts of guar gum and 8 parts of water;
The bagasse active carbon is obtained by the following method: mixing bagasse, 25wt.% H 3PO4 and 15wt.% HNO 3 according to the mass ratio of 2:3:3, performing ultrasonic treatment on the obtained mixture for 35min under the ultrasonic power of 550W, standing for 24H at room temperature, drying for 24H at 130 ℃ after standing, burning for 0.6H at the high temperature of 750 ℃ in a muffle furnace, cleaning the obtained product with deionized water, completely removing unreacted acid, and finally heating and drying the cleaned product to constant weight at 110 ℃ in an oven to obtain the bagasse active carbon;
The preparation method of the modified bagasse lignin comprises the following steps: 1) Separating and purifying bagasse lignin from black liquor: diluting the concentrated black liquor by 11 times with distilled water, adding 50wt.% sulfuric acid to adjust the pH of the solution to 2, standing for 4 hours, centrifugally collecting solids, washing the solids with dilute acid with the pH value of 2 for 4 times, washing the solids with deionized water for 4 times, and freeze-drying in a vacuum freeze dryer for 36 hours to obtain bagasse crude lignin; dissolving bagasse crude lignin in a methanol-acetone mixture to obtain lignin solution, dripping the lignin solution into diethyl ether to precipitate lignin, centrifuging to collect lignin, washing with diethyl ether for 4 times, and vacuum drying at 45 ℃ to obtain solid, namely purified raw bagasse lignin; the methanol-acetone mixture is prepared by mixing methanol and acetone according to a volume ratio of 7:3; the feed liquid ratio of the bagasse crude lignin to the methanol-acetone mixture is 1g to 4mL; 2) Weighing choline chloride and formic acid with the molar ratio of 1:2 in a round-bottom flask, putting the round-bottom flask into the round-bottom flask, adding a rotor, putting the round-bottom flask into a heat-collecting constant-temperature heating magnetic stirrer, setting the temperature to 65 ℃, heating the stirrer to 105 ℃ after all solids in the round-bottom flask are molten to a transparent state, adding aluminum chloride hexahydrate with the molar ratio of 1:0.1, continuing stirring and heating, stopping stirring after all solids in the system are molten, and cooling the solution to room temperature without crystal precipitation to obtain a ternary eutectic solvent; and (3) mixing the ternary eutectic solvent and the original bagasse lignin in a reaction kettle according to the solid-liquid (mass) ratio of 1:22, reacting for 5 hours at 125 ℃, cooling the reaction kettle to room temperature, and mixing the obtained product with deionized water to obtain a precipitate, namely the modified bagasse lignin.
The preparation method of the deodorizing and antibacterial cat litter of the embodiment comprises the following steps:
(1) Pretreatment of bagasse: soaking bagasse in water at 80deg.C for 5 hr, removing sugar and wax, suction filtering, drying in a blast drying oven at 110deg.C for 13 hr, pulverizing, and sieving with 35 mesh sieve to obtain treated bagasse;
(2) Primary stirring: mixing the treated bagasse, guar gum and hot water at 90 ℃ and fully stirring to obtain a stirring material;
(3) Secondary stirring: weighing bagasse active carbon and modified bagasse lignin, and adding the bagasse active carbon and the modified bagasse lignin into the stirring material in the step (1) to stir to obtain cat litter;
(4) Granulating and forming: granulating and molding the cat litter material obtained in the step (3) by adopting an extrusion granulator, drying by using a blast drying oven, cooling, screening and metering after cooling to obtain deodorizing and antibacterial cat litter, and storing in the drying oven for later use.
Test example:
The applicant has made a number of experiments heretofore to verify the effect of the present application, including the determination of deodorizing ability, the determination of bacteriostasis ability, the determination of caking ability and the determination of water absorption;
Wherein, the measurement mode of deodorization performance is as follows:
0.5g of cat litter was added to a screw-capped headspace bottle (10 mL), and 0.2 mL of 3-thio-3-methyl-1-butanol solution (1000-fold dilution of 3-thio-3-methyl-1-Ding Biaopin) was added to each vial. Then, after the headspace bottle was equilibrated at room temperature (25.+ -. 5 ℃) for 12 hours, the concentration of 3-thio-3-methyl-1-butanol in the headspace bottle was measured by GC-MS, and the deodorizing property was evaluated by calculating the removal rate of 3-thio-3-methyl-1-butanol.
The antibacterial property is determined by the following steps:
0.4-0.5 mL of test bacterial liquid (the concentration is 1x10 6 CFU·mL-1) is respectively dripped on cat litter and a sterilization culture dish without the cat litter, and the culture is carried out for 24 hours at 37 ℃. Taking out the samples respectively, adding physiological saline eluent respectively, repeatedly washing the samples, shaking the samples uniformly, taking a certain amount of the samples, inoculating the samples into a nutrient agar culture medium, culturing the samples at 37 ℃ for 24 hours, and measuring the number of viable bacteria. The number of recovered colonies was counted, wherein the group added dropwise to cat litter was noted as: colony count is retrieved to cat litter, and the sterilization culture dish of putting cat litter not is recorded as: the blank control sample recovers the colony number, and the bacteriostasis rate is calculated according to the following formula:
bacterial liquid microorganism numbering for test description: coli accession number CMCC50071, salmonella accession number ATCC25922.
The measurement method of the caking property is as follows:
2.0g cat litter product was added to an aluminum weigh pan, and then a 100mL burette was placed 9mL above each weigh pan, titrating 10.0mL of water drop into each weigh pan. The weighing pan was then dried in an oven at 30℃for 24h. The dried litter from each weighing pan was transferred to a 4.75mm screen (the screen was large enough to allow all the unagglomerated litter to pass through) and placed on an orbital shaker set at 300rpm min-1 for 1min. Calculating the agglomeration rate of the cat litter according to the formula:
The measurement mode of the water absorption is as follows:
And placing 0.5g of prepared cat litter into a 15mL centrifuge tube to obtain water absorption performance data of the cat litter. 10mL of deionized distilled water was added to each centrifuge tube and the sample was vibrated on an orbital shaker at 250rpm for 15min. The tube was then centrifuged at 1000x gravity for 15min, the supernatant was aspirated with a disposable rubber head dropper, and the tube was weighed.
The applicant tests the use effect of each group of cat litter according to the above measurement mode, and the specific grouping is as follows:
A first group: cat litter prepared in the manner of example 2;
second group: removing bagasse active carbon only, and other components and preparation methods are the same as those of the first group;
Third group: only removing modified bagasse lignin, other components and preparation methods are the same as those of the first group;
fourth group: commercial bean curd cat litter purchased in pet stores;
Fifth group: commercial bentonite cat litter purchased in pet stores;
Sixth group: the modified bagasse lignin is replaced by original bagasse lignin, namely the preparation of the step 2) is not continued, and other components and preparation methods are the same as those of the first group
Seventh group: the bagasse is not treated in advance and is directly used, namely, the operations of removing sugar, wax and the like are removed, and other components and the preparation method are the same as those of the first group.
The following are data from experimental tests performed on bagasse cat litter in the 1 embodiment and 4 control schemes described above, yielding table 1:
table 1 experimental parameters of bagasse cat litter in an embodiment
According to the results shown in Table 1, the removal rate of characteristic odor substances (3-thio-3-methyl-1-butanol) in cat feces can be up to 95.64% by adopting the bagasse cat litter of the application, which is 80.31% higher than that of bagasse cat litter (second group) without bagasse activated carbon, 44.52% higher than that of bean curd cat litter (fourth group) and 44.52% higher than that of bentonite cat litter (fifth group); indicating that the commercial cat litter does not specifically remove cat litter odor; in addition, the antibacterial rates of the cat litter disclosed by the application on escherichia coli and salmonella are 98.32% and 97.58% respectively, the bagasse cat litter without lignin, the bean curd cat litter and the bentonite cat litter have no antibacterial property, the modified bagasse lignin in the cat litter of the sixth group is the original bagasse lignin, the effect is found to be poorer than that of the cat litter disclosed by the application, the antibacterial property and the water absorption property of the cat litter are mainly poor, the modified bagasse lignin obtained after treatment is proved to have outstanding progress, the cat litter of the seventh group does not treat bagasse in advance, so that the bagasse possibly has some deterioration conditions, and the antibacterial effect is poor and the peculiar smell absorption effect is not ideal finally.
The above examples only represent a few embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the present invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.
Claims (9)
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| CN111134026A (en) * | 2020-02-05 | 2020-05-12 | 青岛农业大学 | Antibacterial insect-proof corncob cat litter |
| CN112913701A (en) * | 2021-02-02 | 2021-06-08 | 江苏益汇宠物用品科技有限公司 | Deodorization cat litter and preparation method thereof |
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| US20090062516A1 (en) * | 2006-05-08 | 2009-03-05 | Biojoule Limited | Lignin and other products isolated from plant material, methods for isolation and use, and compositions containing lignin and other plant-derived products |
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| US20170000079A1 (en) * | 2015-07-01 | 2017-01-05 | Wing Keung Lau | Animal litter and method of producing same |
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