Streptococcus

Streptococcus

The culture media products from Ensenmi offer distinct advantages in the development and application of Streptococcus fermentation. We can tailor specific fermentation culture media products to meet customer needs by considering differences in strains and fermentation processes. Below, we summarize the fermentation durations of Streptococcus, their nitrogen requirements, and the key advantages of Ensenmi fermentation culture media products.

Nitrogen Requirements of Streptococcus

Hyaluronic acid (HA) is an extracellular polysaccharide whose biosynthesis requires not only a carbon source, but also a high-quality nitrogen source. An appropriate nitrogen source can effectively support cell growth, precursor metabolism such as UDP-glucose and UDP-glucuronic acid formation, enzyme protein synthesis, and energy balance.

In general, hyaluronic acid fermentation requires nitrogen sources that are:

1. Readily utilizable;

2. Consistent between batches;

3. Low in impurities and salt content.

Requirements for Yeast Extract

In industrial HA production, fermentation with streptococcal strains typically lasts 24-48 h, requiring a nitrogen source that can be supplied rapidly. Yeast extract is therefore an excellent choice. However, poor-quality yeast extract may cause the following issues:

1. Slow or uneven cell growth

2. Increased metabolic stress

3. Higher risk of autolysis in later stages

4. Reduced HA molecular weight

5. Greater fluctuations in broth foam and viscosity

To avoid these problems, yeast extract should have the following qualities:

1. A balanced amino nitrogen profile

2. Stable small peptide content

3. Low ash content

4. Low salt content

5. Good batch consistency

6. Qualified microbiological and endotoxin levels

Advantages of Ensenmi Culture Media Products 

For hyaluronic acid production, Ensenmi culture media yeast extract not only provides a high-quality organic nitrogen source, but also delivers abundant B vitamins, nucleotides, small peptides/amino acids, and growth factors. Among them, B vitamins help promote carbohydrate metabolism and coenzyme synthesis, nucleotides support nucleic acid synthesis and precursor metabolism, small peptides/amino acids enhance cell vitality, and growth factors improve fermentation stability.

In addition, to better support hyaluronic acid production, Ensenmi has optimized the yeast extract manufacturing process to deliver products with the following advantages:

1. A more suitable amino nitrogen profile

2. Stable small peptide content

3. Low ash and low salt content

4. Good batch consistency

5. Qualified microbiological and endotoxin specifications