Fermentation defoaming agent and preparation method thereof

Abstract

The invention discloses a fermentation defoaming agent and a preparation method thereof. The fermentation antifoaming agent is prepared from the following raw materials in parts by weight: 40 to 50 parts of castor oil, 26 to 34 parts of epoxy-terminated silicone oil, 18 to 22 parts of polyethylene glycol, 8 to 12 parts of polyetheramine, 12 to 16 parts of isopropanol, 2 to 6 parts of hydrophobic white carbon black, and 4 to 8 parts of an emulsifier; the fermentation defoaming agent is prepared by adopting the castor oil, the epoxy-terminated silicone oil, the polyethylene glycol, the polyetheramine, the isopropanol, the hydrophobic white carbon black and the emulsifier as raw materials through the preparation method, and the prepared defoaming agent has good defoaming performance and antifoaming performance in fermentation by modifying the silicone oil with polyether modification and castor oil modification at the same time, the use amount of the defoaming agent is reduced, the cost islowered, the influence on the quality of fermentation products is reduced, and the fermentation production efficiency and product conversion rate are ensured; the preparation process is simple, can easily achieve industrialized production, and is worth popularizing.

Description

technical field [0001] The invention relates to a food additive, in particular to a fermentation defoamer and a preparation method thereof. Background technique [0002] Food additives are synthetic or natural substances added to food to improve food color, aroma, taste and other qualities, as well as to meet the needs of antisepsis and processing technology. At present, there are 23 categories and more than 2,000 varieties of food additives in my country, including acidity regulators, anticaking agents, defoamers, antioxidants, bleaching agents, and leavening agents. A large number of foams will be produced during the fermentation process. These stable foams will not only reduce the fermentation efficiency but also lead to a decrease in the conversion rate, seriously affecting the operation of the fermentation industry. At present, defoaming is mainly carried out by adding defoamers. [0003] At present, the defoamers used for fermentation mainly include silicone defoamers...

AI Technical Summary

Problems solved by technology

A large amount of foam will be produced during the fermentation process. These stable foams will not only reduce the fermentation efficiency but also lead to a decrease in the conversion rate, which seriously affects the operation of the fermentation industry. At present, defoaming is mainly carried out by adding defoamers

[0003] At present, the defoamers used for fermentation mainly include silicone defoamers and polyether defoamers. Silicone defoamers defoam quickly but have insufficient foam suppression performance. Polyether defoamers have better foam suppression performance, but defoamer The ability is weak. At present, the defoaming performance and antifoaming performance are mainly improved by polyether modification of silicone. Although the performance has been improved, its adaptability is relatively poor, and it is difficult in carbon source fermentation and nitrogen source fermentation. At the same time, its performance is guaranteed, so it needs to be further improved to meet the production needs