Artificial seawater essence and preparation method thereof

Abstract

The present application relates to the field of salt chemical technology, and specifically discloses an artificial seawater essence and a preparation method thereof. The artificial seawater essence is composed of the following raw materials in parts by weight: 600-800 parts of seawater, 60-80 parts of magnesium sulfate heptahydrate, 40-60 parts of magnesium chloride hexahydrate, 10-12 parts of calcium chloride, 7-9 parts of potassium chloride, 2-4 parts of sodium carbonate, 1-3 parts of composite anti-caking agent, and 0.3-0.5 parts of composite probiotics; the present application adopts a variety of natural raw materials, and reasonably designs the raw material ratio and controls the process parameters. The artificial seawater essence prepared contains a variety of natural ingredients and rich trace elements, which can optimize water quality, approach the real seawater environment, and has strong biodegradability and excellent anti-caking properties, which can meet its various requirements for marine aquaculture.

Description

Technical Field

[0001] The present application relates to the technical field of salt chemical industry, and more specifically, to an artificial seawater essence and a preparation method thereof. Background Art

[0002] Artificial seawater crystal, also known as sea crystal, is a white or light white particle with no odor. It is a complex mixture of sodium chloride, magnesium sulfate, magnesium chloride, calcium chloride and other compounds. Sea crystal is a product of seawater and salt chemical industry. It is mainly produced through a series of processes such as evaporation, centrifugation and concentration of seawater or brine. It basically retains the main components of seawater and is concentrated seawater. In recent years, the content of nitrate and phosphate in seawater has increased year by year, causing serious eutrophication pollution in coastal seawater. Seawater prepared with artificial sea crystal is similar to natural seawater in composition and can be widely used in the transportation of seafood and aquarium breeding. At the same time, sea crystal is also used as an industrial raw material.

[0003] In the existing technology, artificial sea water crystal still has the following defects: 1) During the production process of sea crystal, some elements or compounds will be lost with the steam, resulting in a certain difference between its composition and that of natural seawater; 2) When preparing sea crystal, improper preparation will cause aquatic organisms to fail to develop normally, affecting the survival rate; 3) Traditional salt anti-caking agents such as potassium ferrocyanide or ammonium ferric citrate have certain limitations in terms of safety. Summary of the invention

[0004] In order to solve the problems in the related art that the composition of sea crystal is different from that of natural sea water, the raw materials are improperly prepared and are unsafe and environmentally unfriendly, the present application provides an artificial sea water essence and a preparation method thereof.

[0005] In the first aspect, the present application provides an artificial seawater essence, which adopts the following technical solution:

[0006] An artificial seawater essence comprises the following raw materials in parts by weight: 600-800 parts of seawater, 60-80 parts of magnesium sulfate heptahydrate, 40-60 parts of magnesium chloride hexahydrate, 10-12 parts of calcium chloride, 7-9 parts of potassium chloride, 2-4 parts of sodium carbonate, 1-3 parts of a composite anti-caking agent and 0.3-0.5 parts of a composite probiotic.

[0007] Preferably, the artificial sea water essence comprises the following raw materials in parts by weight: 700 parts of sea water, 70 parts of magnesium sulfate heptahydrate, 50 parts of magnesium chloride hexahydrate, 11 parts of calcium chloride, 8 parts of potassium chloride, 3 parts of sodium carbonate, 2 parts of composite anti-caking agent, and 0.4 parts of composite probiotics.

[0008] Preferably, the composite anti-caking agent is prepared by the following method: adding modified sodium silicate and natural gum into water, stirring to dissolve, and then drying to obtain the composite anti-caking agent.

[0009] Preferably, the mass ratio of the modified sodium silicate, natural gum and water is 20-22:10-12:100.

[0010] Preferably, the natural gum is one of gum arabic, carrageenan and peach gum.

[0011] Preferably, the modified sodium silicate is prepared by the following method:

[0012] (1) adding hydroxypropyl methylcellulose and humic acid into water and stirring to obtain an anti-caking solution;

[0013] (2) Sodium silicate is added to the anti-caking solution, stirred and mixed, and then dried to obtain modified sodium silicate.

[0014] Preferably, in step (1), the mass ratio of hydroxypropyl methylcellulose, humic acid and water is 5-7:1-3:50.

[0015] Preferably, in step (2), the mass ratio of sodium silicate to anti-caking solution is 10-12:50.

[0016] Preferably, the composite probiotics are composed of a mixture of Bacillus natto, Rhodotorula marineum and Rhodopseudomonas palustris with a live bacteria count ratio of 1-3:1:1.1-1.5.

[0017] In a second aspect, the present application provides a method for preparing artificial seawater essence, comprising the following steps:

[0018] S1. Preliminarily filter the seawater with gauze, and evaporate and crystallize the filtered seawater to obtain salt crystals;

[0019] S2, stirring and mixing the salt crystals with magnesium sulfate heptahydrate, magnesium chloride hexahydrate, calcium chloride, potassium chloride, sodium carbonate, and a composite anti-caking agent to obtain a mixture;

[0020] S3. Add compound probiotics into the mixture, stir and mix, and obtain artificial sea water essence.

[0021] In summary, this application has the following beneficial effects:

[0022] 1. This application adopts a reasonable combination of raw materials, and controls the raw material ratio and process parameters. The artificial seawater essence produced not only contains a variety of natural ingredients and rich trace elements, is close to the real seawater environment, is suitable for marine aquaculture, but also has strong anti-caking and environmental protection.

[0023] 2. The present application uses modified sodium silicate and natural gum as raw materials to prepare a composite anti-caking agent. Modifying sodium silicate with hydroxypropyl methylcellulose and humic acid can not only improve the cohesiveness of sodium silicate and enhance the adhesion of the anti-caking agent to seawater essence, but the addition of humic acid can also enable the anti-caking agent to maintain good fluidity and solubility, as well as improve the stability of the structure and performance of the anti-caking agent, thereby enhancing the overall anti-caking performance of seawater essence. In addition, the addition of hydroxypropyl methylcellulose and humic acid can enhance the flocculation effect, improve the clarity and transparency of water quality, and contribute to marine aquaculture. When modified sodium silicate is used together with natural gum, on the one hand, it can improve the crystallization rate and crystallization quality of seawater essence, form a purer and higher-quality crystal structure, and improve the dissolution rate and uniformity of seawater crystals, facilitating its operation during processing and transportation; on the other hand, it can improve the physical and chemical stability of seawater essence under different environmental conditions, reduce the risk of deterioration during storage and use, and thereby enhance the anti-caking property of seawater essence. In addition, their compounding can make the raw material ingredients more evenly distributed and adhere to the surface of seawater essence, improve the moisture absorption and agglomeration tendency of seawater essence by competing with seawater essence for moisture absorption, eliminate the static charge and molecular forces on the surface of seawater essence, effectively isolate the adhesion between seawater essences, enhance the anti-caking performance, and play a synergistic anti-caking role.

[0024] 3. The present application adds composite probiotics in the process of preparing artificial seawater essence, which can synergistically regulate the flora structure in the intestines of aquatic animals, enhance the immunity of aquatic animals, reduce the occurrence of diseases, and promote their growth. At the same time, it can decompose harmful substances in the aquaculture water, such as ammonia nitrogen, hydrogen sulfide, etc., thereby purifying the water quality and providing a better living environment for aquatic animals. DETAILED DESCRIPTION

[0025] The present application is further described in detail below in conjunction with embodiments.

[0026] Embodiment 1-5 provides an artificial seawater essence and a preparation method thereof.

[0027] Hydroxypropyl methylcellulose (product number: YB47286, purchased from Hunan Yunbang Biotechnology Co., Ltd.), humic acid (CAS: 1415-93-6, purchased from Shanxi Jiayou Humic Acid Technology Co., Ltd.), sodium silicate (article number: 849*-14, purchased from Xintonghe (Jinan) Chemical Co., Ltd.), gum arabic (active ingredient content: 99%, purchased from Hebei Jiuxing Chemical Products Co., Ltd.), ammonium ferric citrate (article number: R12003025-500g, purchased from Shanghai Ruichu Biotechnology Co., Ltd.), Bacillus natto is Bacillus natto BMZ125131 (purchased from Ningbo Mingzhou Biotechnology Co., Ltd.), marine red yeast (article number: 2023928, purchased from Shandong Runwo Biotechnology Co., Ltd.), and Rhodopseudomonas palustris is Rhodopseudomonas palustris BMZ121828 (purchased from Ningbo Mingzhou Biotechnology Co., Ltd.).

[0028] Example 1

[0029] An artificial seawater essence comprises the following raw materials in parts by weight: 600 parts of seawater, 60 parts of magnesium sulfate heptahydrate, 40 parts of magnesium chloride hexahydrate, 10 parts of calcium chloride, 7 parts of potassium chloride, 2 parts of sodium carbonate, 1 part of a composite anti-caking agent and 0.3 parts of a composite probiotic.

[0030] The composite anti-caking agent is prepared by the following method: adding modified sodium silicate and gum arabic into water at a mass ratio of modified sodium silicate, gum arabic and water of 20:10:100, stirring at a speed of 400 r / min for 20 minutes, and then drying at 60° C. for 3 hours to obtain the composite anti-caking agent.

[0031] The modified sodium silicate is prepared by the following method:

[0032] (1) adding hydroxypropyl methylcellulose and humic acid to water in a mass ratio of 5:1:50, and stirring at a speed of 400 r / min for 20 min to obtain an anti-caking solution;

[0033] (2) Sodium silicate was added to the anti-caking solution at a mass ratio of sodium silicate to anti-caking solution of 10:50, stirred at 600 r / min for 30 min, and then dried at 55° C. for 2 h to obtain modified sodium silicate.

[0034] A method for preparing artificial seawater essence comprises the following steps:

[0035] S1. Preliminarily filter the seawater with 120-mesh gauze, evaporate and crystallize the filtered seawater, control the evaporation temperature to 100°C, and the time to 3 hours to obtain salt crystals;

[0036] S2, stirring the salt crystals with magnesium sulfate heptahydrate, magnesium chloride hexahydrate, calcium chloride, potassium chloride, sodium carbonate, and a composite anti-caking agent at a speed of 600 r / min for 1 h to obtain a mixture;

[0037] S3. Add compound probiotics (composed of a mixture of Bacillus natto, marine red yeast and Rhodopseudomonas palustris in a live bacteria count ratio of 1:1:1.1) to the mixture, and stir at 400 r / min for 30 min to obtain artificial sea water essence.

[0038] Example 2

[0039] An artificial seawater essence comprises the following raw materials in parts by weight: 650 parts of seawater, 65 parts of magnesium sulfate heptahydrate, 45 parts of magnesium chloride hexahydrate, 10.5 parts of calcium chloride, 7.5 parts of potassium chloride, 2.5 parts of sodium carbonate, 1.5 parts of a composite anti-caking agent, and 0.35 parts of a composite probiotic.

[0040] The composite anti-caking agent is prepared by the following method: adding modified sodium silicate and gum arabic into water at a mass ratio of modified sodium silicate, gum arabic and water of 20.5:10.5:100, stirring at a speed of 450 r / min for 25 minutes, and then drying at 62° C. for 3.5 hours to obtain the composite anti-caking agent.

[0041] The modified sodium silicate is prepared by the following method:

[0042] (1) adding hydroxypropyl methylcellulose and humic acid into water in a mass ratio of 5.5:1.5:50, and stirring at a speed of 400 r / min for 20 min to obtain an anti-caking solution;

[0043] (2) Sodium silicate was added to the anti-caking solution at a mass ratio of sodium silicate to anti-caking solution of 10.5:50, stirred at 600 r / min for 30 min, and then dried at 57° C. for 2.5 h to obtain modified sodium silicate.

[0044] A method for preparing artificial seawater essence comprises the following steps:

[0045] S1. Preliminarily filter the seawater with 130-mesh gauze, evaporate and crystallize the filtered seawater, control the evaporation temperature to 105°C, and the time to 3.5h to obtain salt crystals;

[0046] S2, stirring the salt crystals with magnesium sulfate heptahydrate, magnesium chloride hexahydrate, calcium chloride, potassium chloride, sodium carbonate, and a composite anti-caking agent at a speed of 600 r / min for 1.5 h to obtain a mixture;

[0047] S3. Add compound probiotics (composed of a mixture of Bacillus natto, marine red yeast and Rhodopseudomonas palustris with a live bacteria count ratio of 1.5:1:1.2) to the mixture, and stir at 400 r / min for 30 min to obtain artificial sea water essence.

[0048] Example 3

[0049] An artificial seawater essence comprises the following raw materials in parts by weight: 700 parts of seawater, 70 parts of magnesium sulfate heptahydrate, 50 parts of magnesium chloride hexahydrate, 11 parts of calcium chloride, 8 parts of potassium chloride, 3 parts of sodium carbonate, 2 parts of a composite anti-caking agent, and 0.4 parts of a composite probiotic.

[0050] The composite anti-caking agent is prepared by the following method: adding modified sodium silicate and gum arabic into water at a mass ratio of modified sodium silicate, gum arabic and water of 21:11:100, stirring at a speed of 500 r / min for 30 minutes, and then drying at 64° C. for 4 hours to obtain the composite anti-caking agent.

[0051] The modified sodium silicate is prepared by the following method:

[0052] (1) adding hydroxypropyl methylcellulose and humic acid to water in a mass ratio of 6:2:50, and stirring at 400 r / min for 20 min to obtain an anti-caking solution;

[0053] (2) Sodium silicate was added to the anti-caking solution at a mass ratio of sodium silicate to anti-caking solution of 11:50, stirred at 600 r / min for 30 min, and then dried at 59° C. for 3 h to obtain modified sodium silicate.

[0054] A method for preparing artificial seawater essence comprises the following steps:

[0055] S1. Preliminarily filter the seawater with 140-mesh gauze, evaporate and crystallize the filtered seawater, control the evaporation temperature to 110°C, and the time to 4 hours to obtain salt crystals;

[0056] S2, stirring the salt crystals with magnesium sulfate heptahydrate, magnesium chloride hexahydrate, calcium chloride, potassium chloride, sodium carbonate, and a composite anti-caking agent at a speed of 600 r / min for 2 h to obtain a mixture;

[0057] S3. Add compound probiotics (composed of a mixture of Bacillus natto, marine red yeast and Rhodopseudomonas palustris with a live bacteria count ratio of 2:1:1.3) to the mixture, and stir at 400 r / min for 30 min to obtain artificial sea water essence.

[0058] Example 4

[0059] An artificial seawater essence comprises the following raw materials in parts by weight: 750 parts of seawater, 75 parts of magnesium sulfate heptahydrate, 55 parts of magnesium chloride hexahydrate, 11.5 parts of calcium chloride, 8.5 parts of potassium chloride, 3.5 parts of sodium carbonate, 2.5 parts of a composite anti-caking agent and 0.45 parts of a composite probiotic.

[0060] The composite anti-caking agent is prepared by the following method: adding modified sodium silicate and gum arabic into water at a mass ratio of modified sodium silicate, gum arabic and water of 21.5:11.5:100, stirring at a speed of 550 r / min for 35 minutes, and then drying at 66° C. for 4.5 hours to obtain the composite anti-caking agent.

[0061] The modified sodium silicate is prepared by the following method:

[0062] (1) adding hydroxypropyl methylcellulose and humic acid into water in a mass ratio of 6.5:2.5:50, and stirring at a speed of 400 r / min for 20 min to obtain an anti-caking solution;

[0063] (2) Sodium silicate was added to the anti-caking solution at a mass ratio of sodium silicate to anti-caking solution of 11.5:50, stirred at 600 r / min for 30 min, and then dried at 61° C. for 3.5 h to obtain modified sodium silicate.

[0064] A method for preparing artificial seawater essence comprises the following steps:

[0065] S1. Preliminarily filter the seawater with 150 mesh gauze, evaporate and crystallize the filtered seawater, control the evaporation temperature to 115°C, and the time to 4.5h to obtain salt crystals;

[0066] S2, stirring the salt crystals with magnesium sulfate heptahydrate, magnesium chloride hexahydrate, calcium chloride, potassium chloride, sodium carbonate, and a composite anti-caking agent at a speed of 600 r / min for 2.5 h to obtain a mixture;

[0067] S3. Add compound probiotics (composed of a mixture of Bacillus natto, marine red yeast and Rhodopseudomonas palustris with a live bacteria count ratio of 2.5:1:1.4) to the mixture, and stir at 400 r / min for 30 min to obtain artificial sea water essence.

[0068] Example 5

[0069] An artificial seawater essence comprises the following raw materials in parts by weight: 800 parts of seawater, 80 parts of magnesium sulfate heptahydrate, 60 parts of magnesium chloride hexahydrate, 12 parts of calcium chloride, 9 parts of potassium chloride, 4 parts of sodium carbonate, 3 parts of a composite anti-caking agent and 0.5 parts of a composite probiotic.

[0070] The composite anti-caking agent is prepared by the following method: adding modified sodium silicate and gum arabic into water at a mass ratio of modified sodium silicate, gum arabic and water of 22:12:100, stirring at a speed of 600 r / min for 40 minutes, and then drying at 68° C. for 5 hours to obtain the composite anti-caking agent.

[0071] The modified sodium silicate is prepared by the following method:

[0072] (1) adding hydroxypropyl methylcellulose and humic acid to water in a mass ratio of 7:3:50, and stirring at 400 r / min for 20 min to obtain an anti-caking solution;

[0073] (2) Sodium silicate was added to the anti-caking solution at a mass ratio of sodium silicate to anti-caking solution of 12:50, stirred at 600 r / min for 30 min, and then dried at 63° C. for 4 h to obtain modified sodium silicate.

[0074] A method for preparing artificial seawater essence comprises the following steps:

[0075] S1. Preliminarily filter the seawater with 160-mesh gauze, evaporate and crystallize the filtered seawater, control the evaporation temperature to 120°C, and the time to 5 hours to obtain salt crystals;

[0076] S2, stirring the salt crystals with magnesium sulfate heptahydrate, magnesium chloride hexahydrate, calcium chloride, potassium chloride, sodium carbonate, and a composite anti-caking agent at a speed of 600 r / min for 3 h to obtain a mixture;

[0077] S3. Add compound probiotics (composed of a mixture of Bacillus natto, marine red yeast and Rhodopseudomonas palustris in a live bacteria count ratio of 3:1:1.5) to the mixture, and stir at 400 r / min for 30 min to obtain artificial sea water essence.

[0078] Comparative Example 1

[0079] An artificial seawater essence comprises the following raw materials in parts by weight: 600 parts of seawater, 60 parts of magnesium sulfate heptahydrate, 40 parts of magnesium chloride hexahydrate, 10 parts of calcium chloride, 7 parts of potassium chloride, 2 parts of sodium carbonate, 1 part of ammonium ferric citrate and 0.3 parts of compound probiotics.

[0080] A method for preparing artificial seawater essence comprises the following steps:

[0081] S1. Preliminarily filter the seawater with 120-mesh gauze, evaporate and crystallize the filtered seawater, control the evaporation temperature to 100°C, and the time to 3 hours to obtain salt crystals;

[0082] S2, stirring the salt crystals with magnesium sulfate heptahydrate, magnesium chloride hexahydrate, calcium chloride, potassium chloride, sodium carbonate, and ammonium ferric citrate at a speed of 600 r / min for 1 h to obtain a mixture;

[0083] S3. Add compound probiotics (composed of a mixture of Bacillus natto, marine red yeast and Rhodopseudomonas palustris in a live bacteria count ratio of 1:1:1.1) to the mixture, and stir at 400 r / min for 30 min to obtain artificial sea water essence.

[0084] Comparative Example 2

[0085] An artificial seawater essence comprises the following raw materials in parts by weight: 600 parts of seawater, 60 parts of magnesium sulfate heptahydrate, 40 parts of magnesium chloride hexahydrate, 10 parts of calcium chloride, 7 parts of potassium chloride, 2 parts of sodium carbonate, 1 part of a composite anti-caking agent and 0.3 parts of a composite probiotic.

[0086] The composite anti-caking agent is prepared by the following method: adding modified sodium silicate to water at a mass ratio of 30:100, stirring at a speed of 400 r / min for 20 minutes, and then drying at 60° C. for 3 hours to obtain the composite anti-caking agent.

[0087] The modified sodium silicate is prepared by the following method:

[0088] (1) adding hydroxypropyl methylcellulose and humic acid to water in a mass ratio of 5:1:50, and stirring at a speed of 400 r / min for 20 min to obtain an anti-caking solution;

[0089] (2) Sodium silicate was added to the anti-caking solution at a mass ratio of sodium silicate to anti-caking solution of 10:50, stirred at 600 r / min for 30 min, and then dried at 55° C. for 2 h to obtain modified sodium silicate.

[0090] A method for preparing artificial seawater essence comprises the following steps:

[0091] S1. Preliminarily filter the seawater with 120-mesh gauze, evaporate and crystallize the filtered seawater, control the evaporation temperature to 100°C, and the time to 3 hours to obtain salt crystals;

[0092] S2, stirring the salt crystals with magnesium sulfate heptahydrate, magnesium chloride hexahydrate, calcium chloride, potassium chloride, sodium carbonate, and a composite anti-caking agent at a speed of 600 r / min for 1 h to obtain a mixture;

[0093] S3. Add compound probiotics (composed of a mixture of Bacillus natto, marine red yeast and Rhodopseudomonas palustris in a live bacteria count ratio of 1:1:1.1) to the mixture, and stir at 400 r / min for 30 min to obtain artificial sea water essence.

[0094] Comparative Example 3

[0095] An artificial seawater essence comprises the following raw materials in parts by weight: 600 parts of seawater, 60 parts of magnesium sulfate heptahydrate, 40 parts of magnesium chloride hexahydrate, 10 parts of calcium chloride, 7 parts of potassium chloride, 2 parts of sodium carbonate, 1 part of a composite anti-caking agent and 0.3 parts of a composite probiotic.

[0096] The composite anti-caking agent is prepared by the following method: according to the mass ratio of sodium silicate, gum arabic and water being 20:10:100, sodium silicate and gum arabic are added into water, stirred at a speed of 400 r / min for 20 min, and then dried at 60° C. for 3 h to obtain the composite anti-caking agent.

[0097] A method for preparing artificial seawater essence comprises the following steps:

[0098] S1. Preliminarily filter the seawater with 120-mesh gauze, evaporate and crystallize the filtered seawater, control the evaporation temperature to 100°C, and the time to 3 hours to obtain salt crystals;

[0099] S2, stirring the salt crystals with magnesium sulfate heptahydrate, magnesium chloride hexahydrate, calcium chloride, potassium chloride, sodium carbonate, and a composite anti-caking agent at a speed of 600 r / min for 1 h to obtain a mixture;

[0100] S3. Add compound probiotics (composed of a mixture of Bacillus natto, marine red yeast and Rhodopseudomonas palustris in a live bacteria count ratio of 1:1:1.1) to the mixture, and stir at 400 r / min for 30 min to obtain artificial sea water essence.

[0101] Comparative Example 4

[0102] An artificial seawater essence comprises the following raw materials in parts by weight: 600 parts of seawater, 60 parts of magnesium sulfate heptahydrate, 40 parts of magnesium chloride hexahydrate, 10 parts of calcium chloride, 7 parts of potassium chloride, 2 parts of sodium carbonate, 1 part of a composite anti-caking agent and 0.3 parts of a composite probiotic.

[0103] The composite anti-caking agent is prepared by the following method: adding modified sodium silicate and gum arabic into water at a mass ratio of modified sodium silicate, gum arabic and water of 20:10:100, stirring at a speed of 400 r / min for 20 minutes, and then drying at 60° C. for 3 hours to obtain the composite anti-caking agent.

[0104] The modified sodium silicate is prepared by the following method:

[0105] (1) adding hydroxypropyl methylcellulose to water in a mass ratio of 6:50, and stirring at a speed of 400 r / min for 20 min to obtain an anti-caking solution;

[0106] (2) Sodium silicate was added to the anti-caking solution at a mass ratio of sodium silicate to anti-caking solution of 10:50, stirred at 600 r / min for 30 min, and then dried at 55° C. for 2 h to obtain modified sodium silicate.

[0107] A method for preparing artificial seawater essence comprises the following steps:

[0108] S1. Preliminarily filter the seawater with 120-mesh gauze, evaporate and crystallize the filtered seawater, control the evaporation temperature to 100°C, and the time to 3 hours to obtain salt crystals;

[0109] S2, stirring the salt crystals with magnesium sulfate heptahydrate, magnesium chloride hexahydrate, calcium chloride, potassium chloride, sodium carbonate, and a composite anti-caking agent at a speed of 600 r / min for 1 h to obtain a mixture;

[0110] S3. Add compound probiotics (composed of a mixture of Bacillus natto, marine red yeast and Rhodopseudomonas palustris in a live bacteria count ratio of 1:1:1.1) to the mixture, and stir at 400 r / min for 30 min to obtain artificial sea water essence.

[0111] Comparative Example 5

[0112] An artificial seawater essence comprises the following raw materials in parts by weight: 600 parts of seawater, 60 parts of magnesium sulfate heptahydrate, 40 parts of magnesium chloride hexahydrate, 10 parts of calcium chloride, 7 parts of potassium chloride, 2 parts of sodium carbonate, 1 part of a composite anti-caking agent and 0.3 parts of a composite probiotic.

[0113] The composite anti-caking agent is prepared by the following method: adding modified sodium silicate and gum arabic into water at a mass ratio of modified sodium silicate, gum arabic and water of 20:10:100, stirring at a speed of 400 r / min for 20 minutes, and then drying at 60° C. for 3 hours to obtain the composite anti-caking agent.

[0114] The modified sodium silicate is prepared by the following method:

[0115] (1) adding hydroxypropyl methylcellulose and humic acid to water in a mass ratio of 5:1:50, and stirring at a speed of 400 r / min for 20 min to obtain an anti-caking solution;

[0116] (2) Sodium silicate was added to the anti-caking solution at a mass ratio of sodium silicate to anti-caking solution of 10:50, stirred at 600 r / min for 30 min, and then dried at 55° C. for 2 h to obtain modified sodium silicate.

[0117] A method for preparing artificial seawater essence comprises the following steps:

[0118] S1. Preliminarily filter the seawater with 120-mesh gauze, evaporate and crystallize the filtered seawater, control the evaporation temperature to 100°C, and the time to 3 hours to obtain salt crystals;

[0119] S2, stirring the salt crystals with magnesium sulfate heptahydrate, magnesium chloride hexahydrate, calcium chloride, potassium chloride, sodium carbonate, and a composite anti-caking agent at a speed of 600 r / min for 1 h to obtain a mixture;

[0120] S3. Add compound probiotics (composed of a mixture of Bacillus natto and marine red yeast with a live bacteria count ratio of 1:1) into the mixture, and stir at 400 r / min for 30 min to obtain artificial sea water essence.

[0121] Comparative Example 6

[0122] An artificial seawater essence comprises the following raw materials in parts by weight: 600 parts of seawater, 60 parts of magnesium sulfate heptahydrate, 40 parts of magnesium chloride hexahydrate, 10 parts of calcium chloride, 7 parts of potassium chloride, 2 parts of sodium carbonate, 1 part of a composite anti-caking agent and 0.3 parts of a composite probiotic.

[0123] The composite anti-caking agent is prepared by the following method: adding modified sodium silicate and gum arabic into water at a mass ratio of modified sodium silicate, gum arabic and water of 20:10:100, stirring at a speed of 400 r / min for 20 minutes, and then drying at 60° C. for 3 hours to obtain the composite anti-caking agent.

[0124] The modified sodium silicate is prepared by the following method:

[0125] (1) adding hydroxypropyl methylcellulose and humic acid to water in a mass ratio of 5:1:50, and stirring at a speed of 400 r / min for 20 min to obtain an anti-caking solution;

[0126] (2) Sodium silicate was added to the anti-caking solution at a mass ratio of sodium silicate to anti-caking solution of 10:50, stirred at 600 r / min for 30 min, and then dried at 55° C. for 2 h to obtain modified sodium silicate.

[0127] A method for preparing artificial seawater essence comprises the following steps:

[0128] S1. Preliminarily filter the seawater with 120-mesh gauze, evaporate and crystallize the filtered seawater, control the evaporation temperature to 100°C, and the time to 3 hours to obtain salt crystals;

[0129] S2, stirring the salt crystals with magnesium sulfate heptahydrate, magnesium chloride hexahydrate, calcium chloride, potassium chloride, sodium carbonate, and a composite anti-caking agent at a speed of 600 r / min for 1 h to obtain a mixture;

[0130] S3. Add compound probiotics (composed of a mixture of Bacillus natto and Rhodopseudomonas palustris with a live bacteria count ratio of 1:1.1) into the mixture, and stir at 400 r / min for 30 min to obtain artificial seawater essence.

[0131] Comparative Example 7

[0132] An artificial seawater essence comprises the following raw materials in parts by weight: 600 parts of seawater, 60 parts of magnesium sulfate heptahydrate, 40 parts of magnesium chloride hexahydrate, 10 parts of calcium chloride, 7 parts of potassium chloride, 2 parts of sodium carbonate, 1 part of a composite anti-caking agent and 0.3 parts of a composite probiotic.

[0133] The composite anti-caking agent is prepared by the following method: adding modified sodium silicate and gum arabic into water at a mass ratio of modified sodium silicate, gum arabic and water of 20:10:100, stirring at a speed of 400 r / min for 20 minutes, and then drying at 60° C. for 3 hours to obtain the composite anti-caking agent.

[0134] The modified sodium silicate is prepared by the following method:

[0135] (1) adding hydroxypropyl methylcellulose and humic acid to water in a mass ratio of 5:1:50, and stirring at a speed of 400 r / min for 20 min to obtain an anti-caking solution;

[0136] (2) Sodium silicate was added to the anti-caking solution at a mass ratio of sodium silicate to anti-caking solution of 10:50, stirred at 600 r / min for 30 min, and then dried at 55° C. for 2 h to obtain modified sodium silicate.

[0137] A method for preparing artificial seawater essence comprises the following steps:

[0138] S1. Preliminarily filter the seawater with 120-mesh gauze, evaporate and crystallize the filtered seawater, control the evaporation temperature to 100°C, and the time to 3 hours to obtain salt crystals;

[0139] S2, stirring the salt crystals with magnesium sulfate heptahydrate, magnesium chloride hexahydrate, calcium chloride, potassium chloride, sodium carbonate, and a composite anti-caking agent at a speed of 600 r / min for 1 h to obtain a mixture;

[0140] S3. Add compound probiotics (composed of a mixture of marine red yeast and palustrine red pseudomonas with a live bacteria count ratio of 1:1.1) into the mixture, and stir at 400 r / min for 30 min to obtain artificial sea water essence.

[0141] Performance Testing

[0142] The artificial seawater essences prepared in Examples 1-5 of the present application and Comparative Examples 1-7 were respectively subjected to comprehensive performance tests.

[0143] 1. Anti-knot test

[0144] (1) Test environment: temperature 25°C, relative humidity 75%;

[0145] (2) Product packaging: The artificial seawater essence prepared in Examples 1-5 and Comparative Examples 1-7 were packed into plastic sealed bags according to the specifications of 300 g each, and the bags were sealed and stored after venting;

[0146] (3) Product stacking: Divide the flat rectangular platform into 12 points, place 5 samples of each artificial seawater essence at each point, and then press it with a flat steel plate with a weight of 50 kg.

[0147] Test results: According to the requirements, samples of 12 kinds of artificial seawater essence products were taken at regular intervals to observe the anti-caking performance, and the anti-caking effects of the products are shown in Table 1.

[0148] Table 1

[0149]

[0150] It can be seen from the data in Table 1 that the anti-caking performance of the artificial sea water essence prepared in Examples 1-5 of the present application is significantly better than that of the artificial sea water essence prepared in Comparative Examples 1-7, indicating that the limitation of preparation raw materials, process operation and parameters will produce a certain degree of improvement on the anti-caking performance of artificial sea water essence.

[0151] 2. Stability test

[0152] Take 40kg of natural seawater (taken from the seawater of the Hainan Coral Reef Reserve), recorded as the natural seawater group; mix 2kg of the artificial seawater essence prepared in Example 3 of the present application with 40kg of deionized water, stir until clear and transparent, recorded as the artificial seawater essence group. The above two groups of samples were added to the fish tank respectively, and cultured at 25°C for 60 days (on the 30th day, the 20% v / v simulated seawater in the fish tank was replaced with newly configured simulated seawater). During this period, the various ions in the simulated seawater were detected. The test results are shown in Table 2 (KH was measured using HANNA's KH egg machine tester; specific gravity was measured using an electronic salinity meter; Ca 2+ Mg 2+ , K + PO4 3- 、NO 2- 、NO 3- NH 4+ It was measured with the Salifert test kit).

[0153] Table 2 Natural seawater group

[0154]

[0155] Artificial seawater essence group

[0156]

[0157]

[0158] It can be seen from the data in Table 2 that the basic index values ​​of the artificial seawater essence prepared in the present application are similar to those of natural seawater, and the various indexes of the water body will not fluctuate too much in the short term, and the fluctuation degree of the various indexes can also meet the requirements of marine aquaculture; and the artificial seawater essence prepared in the present application has high stability and ammonia nitrogen degradation efficiency, and the raw material ingredients are more environmentally friendly and more environmentally friendly.

[0159] 3. Determination of physical and chemical indicators

[0160] According to the QB / T 4972-2016 standard, the physical and chemical indexes of the artificial seawater prepared in Example 3 of the present application were tested, and the results are shown in Table 3.

[0161] Table 3

[0162]

[0163]

[0164] It can be seen from the data in Table 3 that the various index values ​​of the artificial sea water essence prepared in the present application are in line with the industry standards, indicating that the artificial sea water essence prepared in the present application can meet the requirements for use in marine aquaculture.

[0165] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. An artificial seawater essence, characterized in that: The invention comprises the following raw materials in parts by weight: 600-800 parts of seawater, 60-80 parts of magnesium sulfate heptahydrate, 40-60 parts of magnesium chloride hexahydrate, 10-12 parts of calcium chloride, 7-9 parts of potassium chloride, 2-4 parts of sodium carbonate, 1-3 parts of composite anti-caking agent, and 0.3-0.5 parts of composite probiotics; The composite anti-caking agent is prepared by the following method: adding modified sodium silicate and natural gum into water, stirring and dissolving them, and then drying to obtain the composite anti-caking agent; The modified sodium silicate is prepared by the following method: (1) Add hydroxypropyl methylcellulose and humic acid into water and stir to obtain an anti-caking solution; (2) adding sodium silicate to the anti-caking solution, stirring and mixing, and then drying to obtain modified sodium silicate; In the step (1), the mass ratio of hydroxypropyl methylcellulose, humic acid and water is 5-7:1-3:50; In the step (2), the mass ratio of sodium silicate to anti-caking solution is 10-12:50; The composite probiotics are composed of a mixture of Bacillus natto, marine red yeast and red pseudomonas palustris with a live bacteria count ratio of 1-3:1:1.1-1.

5.

2. The artificial seawater essence according to claim 1, characterized in that: The invention comprises the following raw materials in parts by weight: 700 parts of seawater, 70 parts of magnesium sulfate heptahydrate, 50 parts of magnesium chloride hexahydrate, 11 parts of calcium chloride, 8 parts of potassium chloride, 3 parts of sodium carbonate, 2 parts of composite anti-caking agent and 0.4 parts of composite probiotics.

3. The artificial seawater essence according to claim 1, characterized in that: The mass ratio of the modified sodium silicate, natural gum and water is 20-22:10-12:

100.

4. The artificial seawater essence according to claim 1, characterized in that: The natural gum is one of gum arabic, carrageenan and peach gum.

5. A method for preparing the artificial seawater essence according to any one of claims 1 to 4, characterized in that: The specific steps include: S1. Preliminarily filter the seawater with gauze, and evaporate and crystallize the filtered seawater to obtain salt crystals; S2, stirring and mixing the salt crystals with magnesium sulfate heptahydrate, magnesium chloride hexahydrate, calcium chloride, potassium chloride, sodium carbonate, and a composite anti-caking agent to obtain a mixture; S3. Add compound probiotics into the mixture, stir and mix, and obtain artificial sea water essence.

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