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A kind of production method of calcium propionate

A production method and technology of calcium propionate, applied in the production field of calcium propionate, can solve the problems of unguaranteed production efficiency, low purity of calcium propionate products, and high production consumption, and achieve low demand for production instruments, low production cost, and high production efficiency. high yield effect

Active Publication Date: 2022-04-29
清远一生自然生物研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main preparation process of calcium propionate is mainly based on the direct combination of propionic acid and calcium source. This process not only has high production consumption, but also has the risk of environmental pollution; It has been reported that this method prepares propionic acid by fermentation, and on this basis, calcium source is added to prepare calcium propionate
However, in this method, the propionic acid produced by fermentation often easily inhibits the subsequent acid production and synthesis of calcium propionate by the fermentation bacteria, resulting in unguaranteed production efficiency; the calcium propionate product prepared by this method also has the disadvantage of low purity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of embodiment of the production method of calcium propionate of the present invention.

[0027] The production method of described a kind of calcium propionate, comprises the following steps:

[0028] (1) After the culture medium was sterilized at 121°C and 0.1MPa for 30 minutes, inoculate Lactobacillus strains with 15% inoculum and cultivate them at 30°C and 0.02-0.04MPa for 24 hours. Stir each time for 5 minutes, rest the rest of the time for static culture and detect the pH of the medium in real time and check the contamination of bacteria at intervals. When the pH is maintained at 4.5 to 5.5 and there is no bacterial contamination, inoculate 15% of the inoculum into a fermenter containing a fermentation medium, and ferment at 30°C for 240 hours to obtain a fermentation mixture A; the fermentation process is divided according to the fermentation cycle. There are four stages, and the pH is controlled by 25% sodium hydroxide aqueous solution in the four stages:...

Embodiment 2

[0032] A kind of embodiment of the production method of calcium propionate of the present invention.

[0033] The production method of described a kind of calcium propionate, comprises the following steps:

[0034](1) After the culture medium was sterilized at 121°C and 0.1MPa for 30 minutes, inoculate Lactobacillus strains with 20% inoculum and cultivate them at 25°C and 0.02-0.04MPa for 22 hours. Stir each time for 6 minutes, rest the rest of the time for static culture and real-time detection of medium pH and interval sampling for contamination of bacteria. When the pH is maintained at 4.5 to 5.5 and there is no bacterial contamination, inoculate 20% of the inoculum into a fermenter containing a fermentation medium, and ferment at 25°C for 240 hours to obtain a fermentation mixture A; the fermentation process is divided according to the fermentation cycle. There are four stages, and the pH is controlled by 40% glucose aqueous solution in the four stages: the first stage is...

Embodiment 3

[0038] A kind of embodiment of the production method of calcium propionate of the present invention.

[0039] The production method of described a kind of calcium propionate, comprises the following steps:

[0040] (1) After the culture medium was sterilized at 121°C and 0.1MPa for 30 minutes, inoculate Lactobacillus strains with 10% inoculum and cultivate them at 35°C and 0.02-0.04MPa for 26 hours. Stirring, each stirring time is 4min, and the rest of the time is static culture and real-time detection of medium pH and interval sampling inspection of bacterial contamination. When the pH is maintained at 4.5 to 5.5 and there is no bacterial contamination, inoculate 10% of the inoculum into a fermenter containing a fermentation medium, and ferment at 35°C for 240 hours to obtain a fermentation mixture A; the fermentation process is divided according to the fermentation cycle. There are four stages, and the pH is controlled by 30% sodium hydroxide aqueous solution in the four st...

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Abstract

The invention discloses a production method of calcium propionate, which belongs to the field of biochemical industry. Compared with the preparation of calcium propionate by the traditional fermentation method, the method of the present invention ensures optimal acid production in the growth, production and aging process of the fermentation bacteria by controlling the pH of the fermentation bacteria in the fermentation process; At the same time, the fermented mixture is filtered and concentrated, and then the calcium source is added for neutralization reaction. Compared with the practice of directly adding the calcium source to the medium for one-step cultivation to produce calcium propionate, it can effectively reduce the reaction caused by excessive or excessive reaction raw materials. less impact on the purity of the final product. The method has simple operation steps, low demand for production equipment, low production cost and high production yield, and the finally obtained calcium propionate product has low water content and high active ingredient content.

Description

technical field [0001] The invention relates to the field of biochemical industry, in particular to a production method of calcium propionate. Background technique [0002] As a common food preservative, calcium propionate not only has excellent anti-corrosion and fresh-keeping functions, but also has good solubility and high effective calcium content in the food production process, which also makes calcium propionate more harmful to the human body than traditional preservatives. beneficial. At present, the main preparation process of calcium propionate is still based on the direct compound preparation of propionic acid and calcium source. This process not only has high production consumption, but also has the risk of environmental pollution; It has been reported that the method prepares propionic acid by fermentation, and then adds a calcium source to prepare calcium propionate. However, in this method, the propionic acid generated by fermentation tends to easily inhibit ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12P7/52C12N1/20C12R1/225
CPCC12P7/52C12N1/20
Inventor 张文贾元兵李阳顺林昊何海锋吴森雨
Owner 清远一生自然生物研究院有限公司
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