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Combination polyether silicone defoamer for fermentation and preparation method thereof

A technology of polyether silicone and defoaming agent, which is applied in the field of food additives, can solve the problem of poor defoaming and foam suppression effect and stability, demulsification and stratification, defoaming and foam suppression effect and stability that are difficult to satisfy sodium glutamate fermentation. Use requirements and other issues to achieve the effect of improving stability, improving foam suppression performance, and uniform distribution of active ingredients

Active Publication Date: 2022-01-18
乌鲁木齐市华泰隆化学助剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the relatively poor defoaming and antifoaming effect and stability of the existing defoaming agent for fermentation. The stability is difficult to meet the requirements of the fermentation of sodium glutamate, and a combination polyether silicone defoamer for fermentation is provided

Method used

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  • Combination polyether silicone defoamer for fermentation and preparation method thereof
  • Combination polyether silicone defoamer for fermentation and preparation method thereof

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preparation example Construction

[0042] The preparation method of the combined polyether silicone defoamer for fermentation of the present invention, the specific steps are as follows:

[0043] (1) Preparation of cross-linked polyacrylic acid resin blending agent: dissolve 0.1-0.5 parts of alkyl acrylate cross-linked resin in 40-50 parts of deionized water, stir well and add 0.1-0.3 parts of triethanolamine to obtain The pH value of the cross-linked polyacrylic acid resin blending agent solution is 7-8;

[0044] (2) First put 1-3 parts of white carbon black into the container, then add 20-35 parts of polyether, start stirring and heat up to 70-80°C, stir for 20-30 minutes, then cool down to 40-55°C, Slowly add 10-20 parts of silicone, stir for 25-35 minutes, then slowly add 45-60 parts of the prepared cross-linked polyacrylic resin blender, and stir for 20-30 minutes to obtain a milky white defoamer emulsion .

[0045] The defoamer of the present invention greatly simplifies the component formula and prepar...

Embodiment 1

[0049] A preparation method of a combined polyether silicone defoamer for fermentation in this embodiment comprises the following steps:

[0050] (1) First prepare the cross-linked polyacrylic acid resin blending agent, dissolve 0.3 parts of alkyl acrylate cross-linked resin in 40 parts of deionized water, stir well and add 0.2 parts of triethanolamine to adjust the cross-linked polyacrylic resin blend The pH of the solution is 8.

[0051] (2) First put 2 parts of white carbon black (hydrophobic fumed silica) into the container, then add 28 parts of ethylene oxide / propylene oxide block polyether, start stirring and heat up to 75°C, stir After 20 minutes, cool down to 40°C, slowly add 16 parts of silicone (ethoxylated silicone oil), stir for 30 minutes, then slowly add 50 parts of cross-linked polyacrylic resin blender that has been prepared, and stir for 20 minutes to obtain Milky white antifoam emulsion.

Embodiment 2

[0070] A preparation method of a combined polyether silicone defoamer for fermentation in this embodiment comprises the following steps:

[0071] (1) First prepare the cross-linked polyacrylic acid resin blending agent, dissolve 0.5 parts of alkyl acrylate cross-linked resin in 50 parts of deionized water, stir well and add 0.1 part of triethanolamine to adjust the cross-linked polyacrylic resin blend The pH of the solution is 7.5.

[0072] (2) First put 1 part of white carbon black (hydrophobic fumed silica) into the container, then add 20 parts of ethylene oxide / propylene oxide block polyether, start stirring and heat up to 80°C, stir After 30 minutes, cool down to 45°C, slowly add 10 parts of silicone (ethoxylated silicone oil), and stir for 25 minutes, then slowly add 60 parts of the prepared cross-linked polyacrylic acid resin blending agent, and stir for 35 minutes to obtain Milky white antifoam emulsion.

[0073] The stability and the defoaming and anti-foaming effect...

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Abstract

The invention discloses a combined polyether silicone defoamer for fermentation and a preparation method thereof, belonging to the field of food additives. The defoamer of the present invention has the following components in parts by mass, 20 to 35 parts of polyether, 10 to 20 parts of organic silicon, 45 to 60 parts of cross-linked polyacrylic resin blending agent, and 1 to 3 parts of white carbon black; its preparation The method is: dissolve the alkyl acrylate cross-linking resin in deionized water, stir evenly, add triethanolamine to it to obtain the cross-linking polyacrylic resin blending agent; then add white carbon black and polyether to the container in turn, start stirring At the same time, heat up to 70-80°C, stir for 20-30 minutes to fully dissolve the silica in the polyether; then cool down to 40-55°C, add silicone, stir for 25-35 minutes, and then add the prepared cross Combined polyacrylic resin blending agent, just stir for 20 to 30 minutes. The preparation process of the antifoaming agent for fermentation of the invention is simple, and it has excellent defoaming, antifoaming and high temperature stability.

Description

technical field [0001] The invention belongs to the field of food additives, and more specifically relates to a combined polyether silicone defoamer for fermentation and a preparation method thereof. Background technique [0002] Sodium glutamate is commonly known as monosodium glutamate. During the fermentation process, due to the presence of protein surfactants in the culture medium, under the condition of ventilation, foams are easily formed in the culture medium. Foam is a colloidal system formed in a small amount of liquid due to the decomposition of gas. The gas and liquid are separated by a layer of liquid film and are not connected to each other. The foam formed can be mainly divided into two types: one is the foam on the surface of the fermentation broth, the gas phase accounts for a particularly large proportion, and there is a clear boundary with the liquid, such as the foam in the early stage of fermentation; the other is the foam The foam in the liquid, also kn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D19/04
CPCB01D19/0404B01D19/0409
Inventor 闫世友魏琪琪赵强马豪杰冯文辉
Owner 乌鲁木齐市华泰隆化学助剂有限公司
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