Beef is not only the Human Food, but also a Favorite Food to Bacteria

  • Editor:Beijing Hongrun Baoshun
  • Date:2020-04-24
  • Type:Company News


Which is better for you, beef extract or beef extract?

  

Many customers do not know whether to choose beef extract or beef extract powder when ordering products. To solve this problem, Beijing Hongrun Baoshun Technology Co., Ltd. specializes in providing the following detailed introduction of the two products.

     

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· Beef Extract (paste)

Beef extract is a tan or dark brown paste obtained from fresh beef which is fat-eliminated, digested, filtered, concentrated and dried. It is rich in creatine, creatinine, peptides, amino acids, nucleotides, organic acids, minerals and vitamins water-soluble substances, etc.

     

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The product is widely applied in the biopharmaceutical fermentation and the preparation of various culture media. Its main function is to supplement peptone and other nitrogen, and the general concentration is 0.3%~0.5%.         

There are two productive techniques for beef extract: chemical acid - base high temperature hydrolysis and multiple enzyme low temperature hydrolysis. At present, the low temperature hydrolysis is more popular, which contains the bioactive trace growth factors will not be inactivated due to high temperature or acid and base. The growth of microorganism is vigorous, metabolic activity is high, and fermentation yield is high.

  · Quality Standard of Beef Extract

  Total nitrogen  (on DM) %: ≥ 9.0%

  Amino nitrogen (on DM) %: ≥ 2.0%

  Solid content: ≥ 60.0%

 

Tips: Some people called the beef extract as beef paste. The beef paste for microbial fermentation is a special beef paste for microbial culture and fermentation but not suitable for direct use in food seasoning industry. Because this product is only made for the culture of microorganisms, it does not contain any flavoring additives of food, which are not conducive to the growth of microorganisms.

 

· Beef Extract Powder

Beef extract powder is a tan or dark brown powder obtained from fresh beef which is fat-eliminated, digested, filtered, concentrated and dried. It is rich in creatine, creatinine, peptides, amino acids, nucleotides, organic acids, minerals and vitamins water-soluble substances, etc. In addition, it contains more methionine, more vitamins and other growth factors needed for bacterial growth. The beef extract powder contains creatine, creatinine, polypeptide, amino acids, nucleotides, organic acids, minerals, vitamins and water-soluble substances, etc., which mainly provide carbon source, energy, phosphate and vitamins for microorganisms. Generally, the concentration of its solution is 3g/L. The basal medium was prepared with different concentrations of beef extract powder. When the standard strain was added the basic medium with the concentration of 1-7g/L beef extract powder solution, the strain grew well, and the score range was 1.8-2.0. The bacterial colony was typical and the score was 3.0. The inhibition of it was poor and the score range was 1-2. The appearance of the medium was good and the score was 3.0. The performance index of the basic medium was higher when the concentration of beef extract solution was 3-5g/L, which was 10, and othe concentrations were 9.0. That indicated the beef extract powder has good effect when its solution concentration was 3-5g/L.


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  · Application of Beef Extract Powder

Beef extract powder supplements the peptone and other nitrogen sources and is a high-grade raw materials of microbial ferment industry.



 

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  ·Quality Standard of Beef Extract

Total nitrogen  (on DM) %: ≥14.0

Amino nitrogen (on DM) %: ≥2.5%

Ash (on DM) %: ≤13%

Moisture %: ≤6.0%


Tips: The productive techniques of beef extract and beef extract powder are same, but the material forms are different. It is recommended to use beef extract for some microbes that need complete nutrition. All kinds of amino acids were preserved intactly because of no high temperature erosion in the process of production.

Beijing Hongrun Baoshun, the manufacturer of culture medium materials, can provide the best professional service and quality to you.

Contact us

 

 

 


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Last:Have You Chosen the Right Culture Medium Materials?

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