CN109393205A - A kind of preparation method of the fodder acidulant for aquaculture - Google Patents

A kind of preparation method of the fodder acidulant for aquaculture Download PDF

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CN109393205A
CN109393205A CN201811380493.0A CN201811380493A CN109393205A CN 109393205 A CN109393205 A CN 109393205A CN 201811380493 A CN201811380493 A CN 201811380493A CN 109393205 A CN109393205 A CN 109393205A
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zeolite powder
solution
chitosan
fumaric acid
starch
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夏琦
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Jieshou Fuyueyuan Agricultural Development Co Ltd
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Jieshou Fuyueyuan Agricultural Development Co Ltd
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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K50/00—Feeding-stuffs specially adapted for particular animals
    • A23K50/80—Feeding-stuffs specially adapted for particular animals for aquatic animals, e.g. fish, crustaceans or molluscs
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/10—Organic substances
    • A23K20/105—Aliphatic or alicyclic compounds
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/10—Organic substances
    • A23K20/163—Sugars; Polysaccharides
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/20—Inorganic substances, e.g. oligoelements
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/20—Inorganic substances, e.g. oligoelements
    • A23K20/28—Silicates, e.g. perlites, zeolites or bentonites
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81—Aquaculture, e.g. of fish
    • Y02A40/818—Alternative feeds for fish, e.g. in aquacultures

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Food Science & Technology (AREA)
  • Zoology (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Husbandry (AREA)
  • Inorganic Chemistry (AREA)
  • Insects & Arthropods (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Birds (AREA)
  • Biological Depolymerization Polymers (AREA)
  • Fodder In General (AREA)

Abstract

The invention discloses a kind of preparation methods of fodder acidulant for aquaculture, the specific steps are as follows: 1) acidification zeolite powder is made in the acidified processing of zeolite powder；2) colloidal solution is formed after starch gelatinization, and urea and acidification zeolite powder is added, modified zeolite powder is made；3) modified zeolite powder moves in closed container, and calcium formate/fumaric acid/modified zeolite flour complexes are made through gas phase adsorption method；4) heat temperature raising after chitosan dissolution, is passed through nitrogen, sequentially adds the new heptanoic acid tert-butyl ester of peroxidating, polyvinyl alcohol and sodium hydroxide, chitosan graft polyvinyl alcohol resin solution is made；5) calcium formate/fumaric acid/modified zeolite flour complexes are added in chitosan graft polyvinyl alcohol resin solution, can be prepared by after vibrating dispersion through drying, crushing.The fodder acidulant, product particle is uniform, had good sustained release effect, stable product quality, can effectively reduce the pH value in aquatic livestock stomach, improves the activity of digestive ferment, improves the utilization rate of feed.

Description

A kind of preparation method of the fodder acidulant for aquaculture
Technical field
The invention belongs to technical field of aquaculture, and in particular to a kind of system of the fodder acidulant for aquatic products cultivation Preparation Method.
Background technique
Organic acid and its salt usually substitute the purposes of the non-therapeutic antibiotic in animal production programs, existing research surface Organic acid is added into animal feed can be such that animal stomach inner pH value declines, and the activity of digestive ferment be improved, to improve animal pair The digestibility of protein and energy.But in aquaculture, the application of fodder acidulant is also seldom, because of aquaculture The particularity of environment, so that organic acid needs high dose in certain fodder acidulants to the more demanding of fodder acidulant, by The limitation of cost, some fodder acidulants the problem of there is also corrosivity and peculiar smell, also some fodder acidulants hold in water body It is easy to run off, causes the utilization rate of organic acid low.Therefore, the stability for improving fodder acidulant, the utilization rate for improving organic acid are One urgent problem to be solved.
Summary of the invention
The purpose of the present invention is being directed to existing problem, a kind of preparation of fodder acidulant for aquaculture is provided Method.
The present invention is achieved by the following technical solutions:
A kind of preparation method of the fodder acidulant for aquaculture, the specific steps are as follows:
1) zeolite powder is added in concentrated sulfuric acid solution, is heated to 60-70 DEG C, stir 2- in the case where revolving speed is 350-400r/min Then mixture is carried out reflux 4-5h by 3h, the zeolite powder of isolated acidification after filtering, and reusing deionized water will Zeolite powder is washed to neutrality, is moved in baking oven, is heated to 70-80 DEG C, then drying to constant weight is pulverized, and acidification is made Zeolite powder；
2) starch is added in ethanol/water solution, is heated to 55-60 DEG C, forms colloidal solution after stirring gelatinization, be then added Urea and acidification zeolite powder, the vibrating dispersion 20-30min under 300-500W ultrasonic wave then heat to 65-70 DEG C, and flow back 20- 25h, after being cooled to room temperature, it is 8-9 that sodium hydroxide solution, which is added, and adjusts pH, stirs 1-2h in the case where revolving speed is 200-300r/min, Then it is aged 2-3h, after being centrifuged, product distilled water and dehydrated alcohol is alternately washed to neutrality, move to 50-60 DEG C It is dried in baking oven to constant weight, modified zeolite powder is made；
3) modified zeolite powder is moved in closed container, nitrogen is previously heated to 70-80 DEG C, hot nitrogen is then passed through into gas Nozzle sprays into container, and calcium formate and fumaric acid are injected in container after pulverizing by atomizer, injected Cheng Zhong, container carry out oscillation stirring 30-40min under 300-500W ultrasonic wave, calcium formate/fumaric acid/modified zeolite are made Flour complexes；
4) it adds chitosan into acetic acid solution, chitosan solution is made after stirring and dissolving, then heats to 60-65 DEG C, lead to Enter the oxygen in nitrogen 20-30min removing container, adds the new heptanoic acid tert-butyl ester of peroxidating, add polyethylene after 5-10min Pure and mild sodium hydroxide is warming up to 80-90 DEG C, isothermal reaction 3-4h, and chitosan graft polyvinyl alcohol resin solution is made；
5) calcium formate/fumaric acid/modified zeolite flour complexes are added in chitosan graft polyvinyl alcohol resin solution, Vibrating dispersion 20-30min, then moves in baking oven under 300-400W ultrasonic wave, dries at 60-65 DEG C to constant weight, then through powder 80 meshes are crossed after broken, can be prepared by fodder acidulant.
Preferably, a kind of preparation method of the fodder acidulant for aquaculture, wherein in step 1), the concentrated sulfuric acid Concentration be 75-80%, the mass volume ratio of the zeolite powder and the concentrated sulfuric acid is 1g:10-15ml, the acidification zeolite powder it is straight Diameter is 5-10 μm.
Preferably, a kind of preparation method of the fodder acidulant for aquaculture, wherein in step 2, the starch is One of cereal starch, potato starch, bean starch are a variety of, and the mass volume ratio of the starch and ethanol/water solution is 1g:30-50ml, the volume ratio of second alcohol and water is 3-4:1 in the ethanol/water solution, and the concentration of the sodium hydroxide solution is 0.3-0.5mol/L, the mass ratio of the starch, urea and acidification zeolite powder are 15-20:2-3:12-17.
Preferably, a kind of preparation method of the fodder acidulant for aquaculture, wherein in step 3), the performic acid The partial size of calcium and fumaric acid after pulverizing is 2-4 μm, and the penetrating pressure of the hot nitrogen is 15-17MPa, the formic acid Calcium, fumaric acid powder injection pressure be 13-15MPa, the mass ratio of the calcium formate, fumaric acid and modified zeolite powder is 3-5:4-6:20-30。
Preferably, a kind of preparation method of the fodder acidulant for aquaculture, wherein in step 4), the acetic acid is molten The concentration of liquid is 20-30%, and the mass volume ratio of the chitosan and acetic acid solution is 1g:5-10ml, the chitosan, peroxide Change new heptanoic acid tert-butyl ester, polyvinyl alcohol, sodium hydroxide mass ratio be 10-15:1-2:20-25:2-4.
Preferably, a kind of preparation method of the fodder acidulant for aquaculture, wherein in step 5), the formic acid Calcium/fumaric acid/modified zeolite flour complexes and the mass volume ratio of chitosan graft polyvinyl alcohol resin solution are 1g:5- 10ml。
The present invention has the advantage that fodder acidulant prepared by the present invention compared with prior art, firstly, zeolite powder is added Enter and be stirred into concentrated sulfuric acid solution, can not only remove the impurity in zeolite powder surface and hole, plays dredging hole Effect, and zeolite powder surface can be made to take the groups such as hydroxyl, carboxyl, increase zeolite powder in the dispersibility of solution；Secondly, will It is reacted after starch dissolution with after urea, acidification zeolite powder vibrating dispersion, is acidified zeolite powder and is glued under the bonding effect of starch It connects on starch molecule surface, is formed to be acidified modified zeolite powder of the zeolite powder as shell, starch molecule for core, modified zeolite powder tool There is the characteristics of surface area is big, strong adsorption, paste agent of the urea of addition as amylan, the bonding that amylan can be improved is strong Degree；Again, by gas phase adsorption method, organic acid calcium formate and fumaric acid are adsorbed on to the surface or gap of modified zeolite powder In, stable calcium formate/fumaric acid/modified zeolite flour complexes are formed, the stability of organic acid can be improved；Again, shell Glycan dissolution after, under the action of initiator peroxidating new heptanoic acid tert-butyl ester, with it is polyvinyl alcohol graft copolymerized polymerize to be formed it is chitosan grafted Branch polyvinyl alcohol resin is soluble in dilute acid soln since chitosan is not soluble in water, by graft polymerization reaction, can be reduced The dissolubility of polyvinyl alcohol resin in water, so that dissolubility is low in the chitosan graft polyvinyl alcohol resin load water formed, and It is soluble in diluted acid, while also there is good film forming；Finally, calcium formate/fumaric acid/modified zeolite flour complexes add Enter into chitosan graft polyvinyl alcohol resin solution, through vibrating dispersion, glycan grafted polyethylene alcohol resin can calcium formate/ Fumaric acid/modified zeolite powder composite surface forms film layer, so that the fodder acidulant of preparation is less soluble in water Solution, stability is good, and after being eaten by aquatic livestock, under the action of gastric acid, the glycan grafting polyvinyl alcohol resin film on surface It is easy dissolution, organic acid is released, to realize the purpose for reducing aquatic livestock stomach inner pH value.The fodder acidulant produces Product particle is uniform, had good sustained release effect, stable product quality, can effectively reduce the pH value in aquatic livestock stomach, improves digestion The activity of enzyme improves the utilization rate of feed, and can effectively guarantee the healthy and complete of digestive canal of aquatic animal.
Specific embodiment
Below with reference to specific implementation method, the present invention is described further.
Embodiment 1
A kind of preparation method of the fodder acidulant for aquaculture, the specific steps are as follows:
1) zeolite powder is added in concentrated sulfuric acid solution, is heated to 60 DEG C, stirred 3h in the case where revolving speed is 350r/min, then will mix Close object carry out reflux 5h, the zeolite powder of isolated acidification after filtering, reuse deionized water by zeolite powder wash to Neutrality moves in baking oven, is heated to 70 DEG C, then drying to constant weight is pulverized, and acidification zeolite powder is made；
2) starch is added in ethanol/water solution, is heated to 55 DEG C, forms colloidal solution after stirring gelatinization, urine is then added Element and acidification zeolite powder, the vibrating dispersion 30min under 300W ultrasonic wave then heat to 65 DEG C, and flow back 25h, are cooled to room temperature Afterwards, it is 8 that sodium hydroxide solution, which is added, and adjusts pH, stirs 2h in the case where revolving speed is 200r/min, is then aged 3h, is centrifuged Afterwards, by product distilled water and dehydrated alcohol, alternately washing moves in 50 DEG C of baking ovens and dries to constant weight, modified boiling is made to neutrality Mountain flour；
3) modified zeolite powder is moved in closed container, nitrogen is previously heated to 70 DEG C, then spray hot nitrogen by gas Mouth sprays into container, calcium formate and fumaric acid is injected in container after pulverizing by atomizer, in injection process In, container carries out oscillation stirring 40min under 300W ultrasonic wave, and calcium formate/fumaric acid/modified zeolite flour complexes are made；
4) it adds chitosan into acetic acid solution, chitosan solution is made after stirring and dissolving, then heats to 60 DEG C, is passed through nitrogen Gas 20min removes the oxygen in container, adds the new heptanoic acid tert-butyl ester of peroxidating, adds polyvinyl alcohol and hydroxide after 5min Sodium is warming up to 80 DEG C, isothermal reaction 4h, and chitosan graft polyvinyl alcohol resin solution is made；
5) calcium formate/fumaric acid/modified zeolite flour complexes are added in chitosan graft polyvinyl alcohol resin solution, Vibrating dispersion 30min, then moves in baking oven under 300W ultrasonic wave, dries at 60 DEG C to constant weight, then crosses 80 mesh after crushed Sieve, can be prepared by fodder acidulant.
Preferably, the concentration of the concentrated sulfuric acid is 75%, the quality of the zeolite powder and the concentrated sulfuric acid wherein in step 1) Volume ratio is 1g:10ml, and the diameter of the acidification zeolite powder is 5 μm.
Preferably, wherein in step 2, the starch be one of cereal starch, potato starch, bean starch or A variety of, the mass volume ratio of the starch and ethanol/water solution is 1g:30ml, the body of second alcohol and water in the ethanol/water solution For product than being 3:1, the concentration of the sodium hydroxide solution is 0.3mol/L, the starch, urea and the mass ratio for being acidified zeolite powder For 15:2:12.
Preferably, the partial size of the performic acid calcium and fumaric acid after pulverizing is 2 μm wherein in step 3), The penetrating pressure of the hot nitrogen be 15MPa, the calcium formate, fumaric acid powder injection pressure be 13MPa, the formic acid The mass ratio of calcium, fumaric acid and modified zeolite powder is 3:4:20.
Preferably, wherein in step 4), the concentration of the acetic acid solution is 20%, the chitosan and acetic acid solution Mass volume ratio is 1g:5ml, the chitosan, the new heptanoic acid tert-butyl ester of peroxidating, polyvinyl alcohol, sodium hydroxide mass ratio be 10:1:20:2。
Preferably, wherein in step 5), the calcium formate/fumaric acid/modified zeolite flour complexes with it is chitosan grafted The mass volume ratio of branch polyvinyl alcohol resin solution is 1g:5ml.
Embodiment 2
A kind of preparation method of the fodder acidulant for aquaculture, the specific steps are as follows:
1) zeolite powder is added in concentrated sulfuric acid solution, is heated to 65 DEG C, stirred 2.5h in the case where revolving speed is 370r/min, then will Mixture carries out reflux 4.5h, and the zeolite powder of isolated acidification after filtering reuses deionized water and washes zeolite powder It washs to neutrality, moves in baking oven, be heated to 75 DEG C, then drying to constant weight is pulverized, acidification zeolite powder is made；
2) starch is added in ethanol/water solution, is heated to 58 DEG C, forms colloidal solution after stirring gelatinization, urine is then added Element and acidification zeolite powder, the vibrating dispersion 25min under 400W ultrasonic wave then heat to 68 DEG C, and flow back 23h, are cooled to room temperature Afterwards, it is 8.5 that sodium hydroxide solution, which is added, and adjusts pH, stirs 1.5h in the case where revolving speed is 250r/min, 2.5h is then aged, through being centrifuged After separation, product distilled water and dehydrated alcohol are alternately washed to neutrality, moves in 55 DEG C of baking ovens and dries to constant weight, be made and change Property zeolite powder；
3) modified zeolite powder is moved in closed container, nitrogen is previously heated to 75 DEG C, then spray hot nitrogen by gas Mouth sprays into container, calcium formate and fumaric acid is injected in container after pulverizing by atomizer, in injection process In, container carries out oscillation stirring 35min under 400W ultrasonic wave, and calcium formate/fumaric acid/modified zeolite flour complexes are made；
4) it adds chitosan into acetic acid solution, chitosan solution is made after stirring and dissolving, then heats to 63 DEG C, is passed through nitrogen Gas 25min removes the oxygen in container, adds the new heptanoic acid tert-butyl ester of peroxidating, adds polyvinyl alcohol and hydroxide after 7min Sodium is warming up to 85 DEG C, isothermal reaction 3.5h, and chitosan graft polyvinyl alcohol resin solution is made；
5) calcium formate/fumaric acid/modified zeolite flour complexes are added in chitosan graft polyvinyl alcohol resin solution, Vibrating dispersion 25min, then moves in baking oven under 350W ultrasonic wave, dries at 63 DEG C to constant weight, then crosses 80 mesh after crushed Sieve, can be prepared by fodder acidulant.
Preferably, the concentration of the concentrated sulfuric acid is 78%, the quality of the zeolite powder and the concentrated sulfuric acid wherein in step 1) Volume ratio is 1g:13ml, and the diameter of the acidification zeolite powder is 8 μm.
Preferably, wherein in step 2, the starch be one of cereal starch, potato starch, bean starch or A variety of, the mass volume ratio of the starch and ethanol/water solution is 1g:40ml, the body of second alcohol and water in the ethanol/water solution For product than being 3:1, the concentration of the sodium hydroxide solution is 0.4mol/L, the starch, urea and the mass ratio for being acidified zeolite powder For 17:2.5:15.
Preferably, the partial size of the performic acid calcium and fumaric acid after pulverizing is 3 μm wherein in step 3), The penetrating pressure of the hot nitrogen be 16MPa, the calcium formate, fumaric acid powder injection pressure be 14MPa, the formic acid The mass ratio of calcium, fumaric acid and modified zeolite powder is 3.5:5:25.
Preferably, wherein in step 4), the concentration of the acetic acid solution is 25%, the chitosan and acetic acid solution Mass volume ratio is 1g:7ml, the chitosan, the new heptanoic acid tert-butyl ester of peroxidating, polyvinyl alcohol, sodium hydroxide mass ratio be 12:1.5:23:3。
Preferably, wherein in step 5), the calcium formate/fumaric acid/modified zeolite flour complexes with it is chitosan grafted The mass volume ratio of branch polyvinyl alcohol resin solution is 1g:7ml.
Embodiment 3
A kind of preparation method of the fodder acidulant for aquaculture, the specific steps are as follows:
1) zeolite powder is added in concentrated sulfuric acid solution, is heated to 70 DEG C, stirred 2h in the case where revolving speed is 400r/min, then will mix Close object carry out reflux 4h, the zeolite powder of isolated acidification after filtering, reuse deionized water by zeolite powder wash to Neutrality moves in baking oven, is heated to 80 DEG C, then drying to constant weight is pulverized, and acidification zeolite powder is made；
2) starch is added in ethanol/water solution, is heated to 60 DEG C, forms colloidal solution after stirring gelatinization, urine is then added Element and acidification zeolite powder, the vibrating dispersion 20min under 500W ultrasonic wave then heat to 70 DEG C, and flow back 20h, are cooled to room temperature Afterwards, it is 9 that sodium hydroxide solution, which is added, and adjusts pH, stirs 1h in the case where revolving speed is 300r/min, is then aged 2h, is centrifuged Afterwards, by product distilled water and dehydrated alcohol, alternately washing moves in 60 DEG C of baking ovens and dries to constant weight, modified boiling is made to neutrality Mountain flour；
3) modified zeolite powder is moved in closed container, nitrogen is previously heated to 80 DEG C, then spray hot nitrogen by gas Mouth sprays into container, calcium formate and fumaric acid is injected in container after pulverizing by atomizer, in injection process In, container carries out oscillation stirring 30min under 500W ultrasonic wave, and calcium formate/fumaric acid/modified zeolite flour complexes are made；
4) it adds chitosan into acetic acid solution, chitosan solution is made after stirring and dissolving, then heats to 65 DEG C, is passed through nitrogen Gas 30min removes the oxygen in container, adds the new heptanoic acid tert-butyl ester of peroxidating, adds polyvinyl alcohol and hydrogen-oxygen after 10min Change sodium, be warming up to 90 DEG C, isothermal reaction 3h, chitosan graft polyvinyl alcohol resin solution is made；
5) calcium formate/fumaric acid/modified zeolite flour complexes are added in chitosan graft polyvinyl alcohol resin solution, Vibrating dispersion 20min, then moves in baking oven under 400W ultrasonic wave, dries at 65 DEG C to constant weight, then crosses 80 mesh after crushed Sieve, can be prepared by fodder acidulant.
Preferably, the concentration of the concentrated sulfuric acid is 80%, the quality of the zeolite powder and the concentrated sulfuric acid wherein in step 1) Volume ratio is 1g:15ml, and the diameter of the acidification zeolite powder is 10 μm.
Preferably, wherein in step 2, the starch be one of cereal starch, potato starch, bean starch or A variety of, the mass volume ratio of the starch and ethanol/water solution is 1g:50ml, the body of second alcohol and water in the ethanol/water solution For product than being 4:1, the concentration of the sodium hydroxide solution is 0.5mol/L, the starch, urea and the mass ratio for being acidified zeolite powder For 20:3:17.
Preferably, the partial size of the performic acid calcium and fumaric acid after pulverizing is 4 μm wherein in step 3), The penetrating pressure of the hot nitrogen be 17MPa, the calcium formate, fumaric acid powder injection pressure be 15MPa, the formic acid The mass ratio of calcium, fumaric acid and modified zeolite powder is 5:6:30.
Preferably, wherein in step 4), the concentration of the acetic acid solution is 30%, the chitosan and acetic acid solution Mass volume ratio is 1g:10ml, the chitosan, the new heptanoic acid tert-butyl ester of peroxidating, polyvinyl alcohol, sodium hydroxide mass ratio be 15:2:25:4。
Preferably, wherein in step 5), the calcium formate/fumaric acid/modified zeolite flour complexes with it is chitosan grafted The mass volume ratio of branch polyvinyl alcohol resin solution is 1g:10ml.
Comparative example 1: the zeolite powder acidification in removal step 1), remaining is same as Example 1.
Comparative example 2: removal step 2, remaining is same as Example 1.
Comparative example 3: the calcium formate in removal step 3), remaining is same as Example 1.
Comparative example 4: the fumaric acid in removal step 3), remaining is same as Example 1.
Comparative example 5: step 4), the chitosan graft polyvinyl alcohol resin solution polyvinyl alcohol resin in step 5) are removed Solution replaces, remaining is same as Example 1.
Test example: mid-April, choosing test aquatic livestock is disease-free 1400 tail of highback crucian of health, and original body mass is flat It is 0.1kg, crucian is randomly divided into 7 groups, every group is divided into 2 net cages, and 100 tails in each net cage are then placed in same pool Crucian after four months, is pulled out the weight for weighing crucian by middle carry out cage culture, wherein the additive amount of fodder acidulant is to raise Expect the 0.25% of total amount, the aquaculture management condition of crucian is identical, and the fodder acidulant in experimental group is provided by embodiment 1, control group Feed addictive in 1-5 is provided by comparative example 1-5, and the fodder acidulant in every group of two net cages is divided into be impregnated with 20 DEG C of warm water It 12h and does not impregnate, fodder acidulant is not added in control group, after the test, count the situation of change of crucian weight, as a result such as Shown in table one:
Table one
As can be seen from Table I, the utilization rate of feed can be improved in fodder acidulant provided by the invention, accelerates the growth of crucian Speed, and stability is good in water, not easily runs off, and without side-effects to crucian.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any It transforms or replaces, should be covered by the scope of protection of the present invention without what creative work was expected.

Claims (6)

1. a kind of preparation method of the fodder acidulant for aquaculture, which is characterized in that specific step is as follows:
1) zeolite powder is added in concentrated sulfuric acid solution, is heated to 60-70 DEG C, stir 2- in the case where revolving speed is 350-400r/min Then mixture is carried out reflux 4-5h by 3h, the zeolite powder of isolated acidification after filtering, and reusing deionized water will Zeolite powder is washed to neutrality, is moved in baking oven, is heated to 70-80 DEG C, then drying to constant weight is pulverized, and acidification is made Zeolite powder；
2) starch is added in ethanol/water solution, is heated to 55-60 DEG C, forms colloidal solution after stirring gelatinization, be then added Urea and acidification zeolite powder, the vibrating dispersion 20-30min under 300-500W ultrasonic wave then heat to 65-70 DEG C, and flow back 20- 25h, after being cooled to room temperature, it is 8-9 that sodium hydroxide solution, which is added, and adjusts pH, stirs 1-2h in the case where revolving speed is 200-300r/min, Then it is aged 2-3h, after being centrifuged, product distilled water and dehydrated alcohol is alternately washed to neutrality, move to 50-60 DEG C It is dried in baking oven to constant weight, modified zeolite powder is made；
3) modified zeolite powder is moved in closed container, nitrogen is previously heated to 70-80 DEG C, hot nitrogen is then passed through into gas Nozzle sprays into container, and calcium formate and fumaric acid are injected in container after pulverizing by atomizer, injected Cheng Zhong, container carry out oscillation stirring 30-40min under 300-500W ultrasonic wave, calcium formate/fumaric acid/modified zeolite are made Flour complexes；
4) it adds chitosan into acetic acid solution, chitosan solution is made after stirring and dissolving, then heats to 60-65 DEG C, lead to Enter the oxygen in nitrogen 20-30min removing container, adds the new heptanoic acid tert-butyl ester of peroxidating, add polyethylene after 5-10min Pure and mild sodium hydroxide is warming up to 80-90 DEG C, isothermal reaction 3-4h, and chitosan graft polyvinyl alcohol resin solution is made；
5) calcium formate/fumaric acid/modified zeolite flour complexes are added in chitosan graft polyvinyl alcohol resin solution, Vibrating dispersion 20-30min, then moves in baking oven under 300-400W ultrasonic wave, dries at 60-65 DEG C to constant weight, then through powder 80 meshes are crossed after broken, can be prepared by fodder acidulant.
2. a kind of preparation method of the fodder acidulant for aquaculture as described in claim 1, which is characterized in that step 1) in, the concentration of the concentrated sulfuric acid is 75-80%, and the mass volume ratio of the zeolite powder and the concentrated sulfuric acid is 1g:10-15ml, described The diameter for being acidified zeolite powder is 5-10 μm.
3. a kind of preparation method of the fodder acidulant for aquaculture as described in claim 1, which is characterized in that step 2) in, the starch is one of cereal starch, potato starch, bean starch or a variety of, the starch and ethanol/water solution Mass volume ratio be 1g:30-50ml, the volume ratio of second alcohol and water is 3-4:1, the hydroxide in the ethanol/water solution The concentration of sodium solution is 0.3-0.5mol/L, and the mass ratio of the starch, urea and acidification zeolite powder is 15-20:2-3:12- 17。
4. a kind of preparation method of the fodder acidulant for aquaculture as described in claim 1, which is characterized in that step 3) in, the partial size of the performic acid calcium and fumaric acid after pulverizing is 2-4 μm, and the penetrating pressure of the hot nitrogen is 15-17MPa, the calcium formate, fumaric acid powder injection pressure be 13-15MPa, the calcium formate, fumaric acid and change Property zeolite powder mass ratio be 3-5:4-6:20-30.
5. a kind of preparation method of the fodder acidulant for aquaculture as described in claim 1, which is characterized in that step 4) in, the concentration of the acetic acid solution is 20-30%, and the mass volume ratio of the chitosan and acetic acid solution is 1g:5-10ml, The chitosan, the new heptanoic acid tert-butyl ester of peroxidating, polyvinyl alcohol, sodium hydroxide mass ratio be 10-15:1-2:20-25:2-4.
6. a kind of preparation method of the fodder acidulant for aquaculture as described in claim 1, which is characterized in that step 5) in, the calcium formate/fumaric acid/modified zeolite flour complexes and chitosan graft polyvinyl alcohol resin solution mass body Product is than being 1g:5-10ml.
CN201811380493.0A 2018-11-20 2018-11-20 A kind of preparation method of the fodder acidulant for aquaculture Withdrawn CN109393205A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110590226A (en) * 2019-10-17 2019-12-20 霍邱县方博新型建材有限公司 Preparation method of cement mortar additive for novel block wall
CN113229413A (en) * 2021-05-24 2021-08-10 吉林农业大学 Rumen degradation protein with nitrogen and carbon skeleton released synchronously, preparation method and application
CN115044379A (en) * 2022-06-07 2022-09-13 北京十玉农业科技有限公司 Heavy metal contaminated soil remediation agent based on graphene oxide and application thereof
CN116998603A (en) * 2023-08-16 2023-11-07 山东齐鲁中牧生物科技有限公司 Efficient micromolecular organic acidulant and preparation method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110590226A (en) * 2019-10-17 2019-12-20 霍邱县方博新型建材有限公司 Preparation method of cement mortar additive for novel block wall
CN113229413A (en) * 2021-05-24 2021-08-10 吉林农业大学 Rumen degradation protein with nitrogen and carbon skeleton released synchronously, preparation method and application
CN115044379A (en) * 2022-06-07 2022-09-13 北京十玉农业科技有限公司 Heavy metal contaminated soil remediation agent based on graphene oxide and application thereof
CN115044379B (en) * 2022-06-07 2024-06-04 北京十玉农业科技有限公司 Heavy metal contaminated soil restoration agent based on graphene oxide and application thereof
CN116998603A (en) * 2023-08-16 2023-11-07 山东齐鲁中牧生物科技有限公司 Efficient micromolecular organic acidulant and preparation method thereof

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