CN116058376B - Modified tea saponin molluscicide and preparation method thereof - Google Patents

Modified tea saponin molluscicide and preparation method thereof Download PDF

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Publication number
CN116058376B
CN116058376B CN202310113197.9A CN202310113197A CN116058376B CN 116058376 B CN116058376 B CN 116058376B CN 202310113197 A CN202310113197 A CN 202310113197A CN 116058376 B CN116058376 B CN 116058376B
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tea saponin
molluscicide
parts
modified
modified tea
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CN116058376A (en
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徐兵
文英
朱伯荣
徐克勤
巩华
林淑红
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Jiangxi Xinzhongye Tea Technology Co ltd
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/34Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
    • A01N43/36Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01PBIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
    • A01P9/00Molluscicides
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07JSTEROIDS
    • C07J63/00Steroids in which the cyclopenta(a)hydrophenanthrene skeleton has been modified by expansion of only one ring by one or two atoms
    • C07J63/008Expansion of ring D by one atom, e.g. D homo steroids
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Plant Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Dentistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention relates to a modified tea saponin molluscicide and a preparation method thereof, wherein the modified tea saponin molluscicide comprises the following raw materials in parts by mass: 100 parts of filler, 18-24 parts of modified tea saponin, 6-10 parts of dispersing agent, 1-3 parts of disintegrating agent and 10-15 parts of wetting agent; the modified tea saponin is a product obtained by esterifying tea saponin and pyrrolidone carboxylic acid. The invention carries out structural modification based on tea saponin to prepare the efficient, low-toxicity and pesticide-hazard-free modified tea saponin molluscicide, has good killing effect on ampullaria gigas and oncomelania, has no influence on fishes, shrimps and the like, and is a novel efficient and pollution-free tea saponin molluscicide.

Description

Modified tea saponin molluscicide and preparation method thereof
Technical Field
The invention belongs to the technical field of tea saponin and pesticides, and particularly relates to a modified tea saponin molluscicide and a preparation method thereof.
Background
Tea saponin is a natural plant molluscicide, is a pentacyclic triterpene saponin mixture, and mainly comprises aglycone, sugar body and organic acid. However, the unmodified tea saponin has insufficient molluscicidal activity, and particularly has a significantly lower molluscicidal effect on adult molluscs than young molluscs, and a large amount of tea saponin is needed to achieve the effective molluscicidal effect, so that the utilization efficiency of the tea saponin raw material is low. It is generally prepared in the form of a derivative in order to desirably enhance molluscicidal activity. For example, tea saponin is used as raw material to prepare effective molluscicide-spirowei. The molluscicidal effect of the spirocarb is remarkable, but the literature reports that the spirocarb has side effects including ecological damage of farmlands caused by toxicity and pesticide residue problems, such as certain damage effect on erythrocytes of fishes and shrimps.
Therefore, development of a novel tea saponin-based molluscicide is desired, which is low in toxicity and side effects while improving molluscicidal activity.
In addition, the structural modification of tea saponin is generally carried out by alkali hydrolysis and/or acid hydrolysis, and then the modification of groups is carried out, so that the physiological function of glycosyl is maintained, and when the structural modification is carried out, the hydroxyl on the glycosyl needs to be protected firstly, and then the structural modification is carried out. However, the protection and deprotection of the hydroxyl group are time-consuming and laborious, and increase the manufacturing cost, and there is still room for improvement in terms of industrialization. The inventors' prior patent CN202211592954.7 disclosed an esterification reaction of tea saponin in an ionic liquid with an organic acid in the presence of a condensing agent (a mixture containing a hydroxyphenylphosphine oxide derivative and an azodicarbonate). The method for synthesizing the tea saponin derivative is simple, effective and low in cost by utilizing the difference of the activities of the primary hydroxyl and the secondary hydroxyl and selectively carrying out esterification reaction on the primary hydroxyl of the tea saponin under the condition of not protecting the glycosyl dosage form. The invention is based on the research, and a novel modified tea saponin molluscicide is prepared according to the synthesis strategy.
Disclosure of Invention
In order to overcome the problems of insufficient activity or high toxicity of the molluscicide based on the tea saponin in the prior art, the invention is based on the tea saponin for structural modification to prepare the efficient, low-toxicity and pesticide-free modified tea saponin molluscicide, has good killing effect on ampullaria gigas and oncomelania, has no influence on fishes, shrimps and the like basically, and is a novel efficient and pollution-free tea saponin molluscicide.
The aim of the invention is achieved by the following technical scheme:
the modified tea saponin molluscicide comprises the following raw materials in parts by mass: 100 parts of filler, 18-24 parts of modified tea saponin, 6-10 parts of dispersing agent, 1-3 parts of disintegrating agent and 10-15 parts of wetting agent; the modified tea saponin is a product obtained by esterifying tea saponin and pyrrolidone carboxylic acid.
Further, the dispersing agent is at least one selected from sodium dodecyl benzene sulfonate, sodium dodecyl sulfonate, sodium laureth sulfate, sodium sorbitol, alkylphenol ethoxylates and fatty alcohol polyoxyethylene ether; the filler is at least one selected from calcium bicarbonate, kaolin, talcum powder, bentonite, lignin, white carbon black, hydrotalcite and sodium alginate; the disintegrating agent is at least one selected from sodium carboxymethyl starch, sodium carboxymethyl cellulose, ammonium sulfate and sodium chloride; the wetting agent is at least one selected from ethanol and ethylene glycol.
Preferably, the dispersing agent is a compound of sodium dodecyl benzene sulfonate and alkylphenol polyoxyethylene ether according to a mass ratio of 1-3:1-3; more preferably, the dispersing agent is the compound of sodium dodecyl benzene sulfonate and polyoxyethylene nonylphenol ether according to the mass ratio of 1-2:1-2.
Further, the modified tea saponin is prepared by a preparation method comprising the following steps: dissolving tea saponin in ionic liquid, adding pyrrolidone carboxylic acid and a photo-delay reaction reagent, and reacting for 2-3h at 130-150 ℃ under the protection of inert atmosphere and vacuum degree of 0.01-0.05 MPa.
Further, the molar ratio of pyrrolidone carboxylic acid to tea saponin is 2-2.2:1. the activity of the primary hydroxyl groups of the tea saponin is much higher than that of the secondary hydroxyl groups, the tea saponin contains 2 primary hydroxyl groups, pyrrolidone carboxylic acid with the molar weight of 2-2.2 times of that of the tea saponin is added, the 2 primary hydroxyl groups participate in the esterification reaction, and the secondary hydroxyl groups do not substantially participate in the reaction.
The light-delay reaction reagent is phenyl phosphine oxide derivative containing hydroxyl and azodicarboxylic acid ester according to the mol ratio of 1-1.2:1-1.2, wherein the dosage of the condensing agent is 1-3% of the mass of the tea saponin; the ionic liquid is imidazole ionic liquid and/or pyridine ionic liquid. Preferably, the hydroxyl-containing phenylphosphine oxide derivative is selected from at least one of bis (4-hydroxyphenyl) phenylphosphine oxide, tris (4-hydroxyphenyl) phosphine oxide, bis (4-hydroxyphenyl) (1-naphthyl) phosphine oxide, bis (1-naphthyl) (4-hydroxyphenyl) phosphine oxide, bis (4-phenoxyphenyl) (4-hydroxyphenyl) phosphine oxide, bis (4-hydroxyphenyl) (2, 4, 5-trimethylphenyl) phosphine oxide; the azodicarboxylic acid ester is at least one selected from dimethyl azodicarboxylate, diethyl azodicarboxylate, dimethyl azodiisobutyrate and diisopropyl azodicarboxylate.
Such imidazole-based ionic liquids and pyridine-based ionic liquids are well known in the art. Examples of imidazole-based ionic liquids include, but are not limited to, at least one of 1-butyl-3-methylimidazolium tetrafluoroborate, 1-hexyl-3-methylimidazolium hexafluorophosphate, 1-octyl-3-methylimidazolium tetrafluoroborate, 1-octyl-3-methylimidazolium triflate; examples of pyridine-based ionic liquids include, but are not limited to, at least one of N-ethylpyridine tetrafluoroborate, N-ethylpyridine hexafluorophosphate, N-butylpyridine tetrafluoroborate, N-butylpyridine hexafluorophosphate.
In the casting reaction, triphenylphosphine and azodicarboxylic acid ester are generally adopted as casting reagents, the configuration of carbon atoms where hydroxyl groups are located is inverted, and the reaction requires the triphenylphosphine with equivalent reaction weight. The inventors have unexpectedly found that the esterification of the primary hydroxyl groups of tea saponin can be efficiently accomplished in ionic liquids as solvents with catalytic amounts of hydroxyl-containing phenylphosphine oxide derivatives and azodicarbonates as casting reagents. The cost and risk problems of using large amounts of triphenylphosphine and azodicarboxylic acid esters are avoided.
According to the invention, after pyrrolidone carboxylic acid esterification modification is carried out on tea saponin, the molluscicidal activity is unexpectedly increased. Pyrrolidone carboxylic acid is an amino acid derivative and is widely used in the cosmetic field as a humectant. The esterified product of tea saponin and pyrrolidone carboxylic acid has low toxic and side effects, can be used as an effective field molluscicide, and cannot damage the field ecological environment.
The invention also provides a preparation method of the modified tea saponin molluscicide, which comprises the following steps: weighing filler, modified tea saponin, dispersant and disintegrating agent in proportion, adding into a stirrer, uniformly mixing, adding wetting agent, uniformly stirring, oven drying, pulverizing, and sieving to obtain the modified tea saponin molluscicide.
Compared with the prior art, the invention has the following advantages:
1. the invention provides a modified tea saponin molluscicide, which is prepared by modifying primary hydroxyl of tea saponin through esterification reaction of pyrrolidone carboxylic acid, has obviously improved molluscicide activity, has no toxic or side effect, reduces harm to fields, and is environment-friendly.
2. The preparation of the modified tea saponin is carried out by esterifying and modifying, avoiding protecting hydroxyl on glycosyl, carrying out esterification reaction of pyrrolidone carboxylic acid in the presence of ionic liquid and specific light delay reaction reagent, and enabling active primary hydroxyl to react and secondary hydroxyl not to participate in reaction basically.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. The following examples facilitate a better understanding of the present invention, but are not intended to limit the same. The experimental methods in the following examples are conventional methods unless otherwise specified.
The parts in the embodiments of the present invention are parts by mass unless otherwise specified; unless otherwise specified, "%" is mass percent.
Tea saponin is obtained from Jiangxi Xinzhong wild tea industry Co.Ltd and has purity of 95.2%.
Preparation examplePreparation of modified tea saponin
Preparation example 1
Under the protection of nitrogen, 1 mole part of tea saponin is dissolved in 1-hexyl-3-methylimidazole hexafluorophosphate, 2.2 mole parts of pyrrolidone carboxylic acid and a condensing agent with the mass of 1% of the tea saponin are added, the condensing agent is a mixture of bis (4-hydroxyphenyl) phenylphosphine oxide and diisopropyl azodicarboxylate according to the molar ratio of 1:1, the mixture is reacted for 3 hours at the vacuum degree of 0.05MPa and the temperature of 130 ℃, and the mixture is naturally cooled to the room temperature, so that the pyrrolidone carboxylic acid esterification modified tea saponin is obtained.
Preparation example 2
Under the protection of nitrogen, 1 mole part of tea saponin is dissolved in 1-butyl-3-methylimidazole tetrafluoroborate, 2.1 mole parts of pyrrolidone carboxylic acid and 3% of condensing agent by mass of the tea saponin are added, the condensing agent is a mixture of bis (1-naphthyl) (4-hydroxyphenyl) phosphine oxide and dimethyl azodicarboxylate according to the molar ratio of 1:1, the mixture is reacted for 2 hours at the vacuum degree of 0.05MPa and the temperature of 150 ℃, and the mixture is naturally cooled to the room temperature, so that the pyrrolidone carboxylic acid esterification modified tea saponin is obtained.
Example 1
Preparation of modified tea saponin molluscicide: 60 parts by mass of talcum powder, 40 parts by mass of light calcium bicarbonate, 18 parts by mass of pyrrolidone carboxylic acid esterification modified tea saponin prepared in preparation example 1, 6 parts by mass of sodium dodecyl benzene sulfonate and 3 parts by mass of sodium carboxymethyl cellulose are uniformly mixed in a stirrer, 20 parts of ethanol is added, the mixture is uniformly stirred and mixed, vacuum drying is carried out at the temperature of 0.2MPa and 60 ℃, and the dried solid is crushed by using a jet mill and is screened to obtain the modified tea saponin molluscicide with the average particle size of 70 mu m.
Example 2
Preparation of modified tea saponin molluscicide: 70 parts of hydrotalcite, 30 parts of light calcium bicarbonate, 24 parts of pyrrolidone carboxylic acid esterification modified tea saponin prepared in preparation example 2, 10 parts of sodium laureth sulfate and 1 part of sodium carboxymethylcellulose are uniformly mixed in a stirrer, 15 parts of ethanol is added, the mixture is uniformly stirred and mixed, vacuum drying is carried out at the temperature of 60 ℃ under the pressure of 0.2MPa, the dried solid is crushed by using a jet mill, and the crushed solid is screened to obtain the modified tea saponin molluscicide with the average particle size of 70 mu m.
Example 3
Other conditions and operations were the same as in example 1 except that 13 parts by mass of tea saponin was used for the esterification modification of pyrrolidone carboxylic acid.
Example 4
Other conditions and operations were the same as in example 1 except that the dispersant was nonylphenol polyoxyethylene ether NP-10.
Example 5
Other conditions and operations are the same as in example 1, except that the dispersant is a mixture of sodium dodecyl benzene sulfonate and polyoxyethylene nonylphenol ether NP-10 in a mass ratio of 1:1.
Comparative example 1
Other conditions and operations were the same as in example 1 except that pyrrolidone carboxylic acid-esterified modified tea saponin was replaced with equal quality unmodified tea saponin.
Application example 1 molluscicidal Activity experiment
(1) The Poyang county is filled with the strong-activity oncomelania to form the snail for standby.
(2) The molluscicides of the above examples and comparative examples were diluted to 5mg/mL (low dose), 10mg/m (high dose) with dechlorinated tap water.
3) Under the room temperature condition, 50 snails are grouped into a group by adopting a snail immersing method, and are respectively immersed into 3000mL of the low-dose and high-dose molluscicide liquid for 24 hours and 48 hours, and are fished out for flushing by clear water, and the death rate of the snails is tested by adopting a knocking method. Clear water was used as a blank control group and 45% of baipirocin was used as a positive control group. The results are shown in Table 1 below.
Table 1 test of molluscicide activity against oncomelania
As can be seen from the data in Table 1, the modified tea saponin molluscicide provided by the invention has very excellent molluscicide activity, the death rate of 24 hours reaches more than 80% and the death rate of 48 hours reaches more than 90% under the low dosage concentration of 5mg/mL, and the death rates of 24 hours and 48 hours of a negative control group (clear water) are respectively 0% and 4%. At high dosage, the death rate of the modified tea saponin molluscicide disclosed by the embodiment of the invention reaches 100%. And compared with the positive control group, the molluscicidal activity is higher than that of the hundred molluscicides.
In addition, the inventor also discovers that the modified tea saponin molluscicide prepared by taking the combination of the anionic surfactant and the nonionic surfactant as a dispersing agent has the optimal effect.
Unmodified tea saponin has low toxicity to prawns and is often used in shrimp ponds, but even at very dilute concentrations, it has greater toxicity to fish. The half lethal dose of tea saponin to Ding Ban fish is 3.8mg/L, and the half lethal dose of the modified tea saponin obtained in preparation example 1 of the invention to Ding Ban fish is 18.7mg/L. The reason is presumably that the modified tea saponin has reduced permeability to fish red blood cells. The tea saponin modified by pyrrolidone carboxylic acid esterification improves molluscicidal activity and reduces toxicity to fish. The device is more suitable for killing snails in farmlands, and cannot cause pollution or harm.

Claims (7)

1. The modified tea saponin molluscicide is characterized by comprising the following raw materials in parts by mass: 100 parts of filler, 18-24 parts of modified tea saponin, 6-10 parts of dispersing agent, 1-3 parts of disintegrating agent and 10-15 parts of wetting agent; the modified tea saponin is a product obtained by esterifying tea saponin and pyrrolidone carboxylic acid;
the modified tea saponin is prepared by a preparation method comprising the following steps: dissolving tea saponin in ionic liquid, adding pyrrolidone carboxylic acid and a photo-delay reaction reagent, and reacting for 2-3 hours at 130-150 ℃ under the protection of inert atmosphere and vacuum degree of 0.01-0.05 MPa; the molar ratio of pyrrolidone carboxylic acid to tea saponin is 2-2.2:1, a step of; the light-delay reaction reagent is phenyl phosphine oxide derivative containing hydroxyl and azodicarboxylic acid ester according to the mol ratio of 1-1.2:1-1.2, wherein the dosage of the light-delay reaction reagent is 1-3% of the mass of the tea saponin; the ionic liquid is imidazole ionic liquid and/or pyridine ionic liquid.
2. The modified tea saponin molluscicide according to claim 1, wherein the dispersant is selected from at least one of sodium dodecyl benzene sulfonate, sodium dodecyl sulfonate, sodium laureth sulfate, sodium sorbitol, alkylphenol ethoxylates, fatty alcohol polyoxyethylene ether; the filler is at least one selected from calcium bicarbonate, kaolin, talcum powder, bentonite, lignin, white carbon black, hydrotalcite and sodium alginate; the disintegrating agent is at least one selected from sodium carboxymethyl starch, sodium carboxymethyl cellulose, ammonium sulfate and sodium chloride; the wetting agent is at least one selected from ethanol and ethylene glycol.
3. The modified tea saponin molluscicide according to claim 1, wherein the dispersant is a compound of sodium dodecyl benzene sulfonate and alkylphenol ethoxylates according to a mass ratio of 1-3:1-3.
4. The modified tea saponin molluscicide according to claim 1, wherein the dispersant is a compound of sodium dodecyl benzene sulfonate and polyoxyethylene nonyl phenyl ether according to a mass ratio of 1-2:1-2.
5. A modified tea saponin molluscicide according to claim 1, wherein the hydroxyl-containing phenyl phosphine oxide derivative is selected from at least one of bis (4-hydroxyphenyl) phenyl phosphine oxide, tris (4-hydroxyphenyl) phosphine oxide, bis (4-hydroxyphenyl) (1-naphthyl) phosphine oxide, bis (1-naphthyl) (4-hydroxyphenyl) phosphine oxide, bis (4-phenoxyphenyl) (4-hydroxyphenyl) phosphine oxide, bis (4-hydroxyphenyl) (2, 4, 5-trimethylphenyl) phosphine oxide; the azodicarboxylic acid ester is at least one selected from dimethyl azodicarboxylate, diethyl azodicarboxylate, dimethyl azodiisobutyrate and diisopropyl azodicarboxylate.
6. A modified tea saponin molluscicide according to claim 1, wherein the imidazole ionic liquid is selected from at least one of 1-butyl-3-methylimidazole tetrafluoroborate, 1-hexyl-3-methylimidazole hexafluorophosphate, 1-octyl-3-methylimidazole tetrafluoroborate, 1-octyl-3-methylimidazole trifluoromethane sulfonate; the pyridine ionic liquid is at least one selected from N-ethylpyridine tetrafluoroborate, N-ethylpyridine hexafluorophosphate, N-butylpyridine tetrafluoroborate and N-butylpyridine hexafluorophosphate.
7. The method for preparing the modified tea saponin molluscicide according to any one of claims 1 to 6, comprising the following steps: weighing filler, modified tea saponin, dispersant and disintegrating agent in proportion, adding into a stirrer, uniformly mixing, adding wetting agent, uniformly stirring, oven drying, pulverizing, and sieving to obtain the modified tea saponin molluscicide.
CN202310113197.9A 2023-02-15 2023-02-15 Modified tea saponin molluscicide and preparation method thereof Active CN116058376B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101524067A (en) * 2009-03-30 2009-09-09 浙江久晟茶业发展有限公司 Usage of botanical molluscicide and tea saponin thereof
CN102731608A (en) * 2012-06-29 2012-10-17 浙江大学 Preparation method of tea saponin ester succinate surfactant and product thereof
CN113980750A (en) * 2021-10-27 2022-01-28 深圳市洁王精细化工科技有限公司 Kitchen detergent and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101524067A (en) * 2009-03-30 2009-09-09 浙江久晟茶业发展有限公司 Usage of botanical molluscicide and tea saponin thereof
CN102731608A (en) * 2012-06-29 2012-10-17 浙江大学 Preparation method of tea saponin ester succinate surfactant and product thereof
CN113980750A (en) * 2021-10-27 2022-01-28 深圳市洁王精细化工科技有限公司 Kitchen detergent and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
刘昕 ; 刘松柏 ; 宋俊梅 ; .茶皂素分子改性研究进展.中国食品学报.2012,(第12期), *

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