Exopolysaccharide production by Lactobacillus delbruckii subsp. bulgaricus and Streptococcus thermophilus strains under different growth conditions
| Autor: | Yavuz Beyatli, Zehra Nur Yuksekdag, Belma Aslim, Nazime Mercan |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: |
Streptococcus thermophilus
Physiology Different growth conditions Applied Microbiology and Biotechnology Microbiology Incubation period Exopolysaccharide Polysaccharides Lactobacillus Growth kinetics delbruckii subsp bulgaricus Lactobacillus delbruckii biology Strain (chemistry) Bacteria Chemistry pH different growth conditions EPS exopolysaccharide food and beverages General Medicine Lactobacillaceae Biodiversity biology.organism_classification Streptococcaceae EPS production Temperature distribution Bacteria strains bacteria Incubation Cell culture Lactobacillus delbruckii subsp. bulgaricus Optimal temperature Lactobacillus delbrueckii subsp. bulgaricus Biotechnology |
| Popis: | The optimal temperature, pH and incubation time for production of exopolysaccharide (EPS) by Lactobacillus delbruckii subsp. bulgaricus and Streptococcus thermophilus strains in MRS and M17 media, respectively, were determined. In all strains, the temperature and incubation time for EPS production were 45 degrees C and 18 h, respectively. At 45 degrees C, L. delbruckii subsp. bulgaricus B3 and G 12 and S. thermophilus W22 strains produced 263, 238 and 127 mg/l, respectively. At 18 h, B3, G12 and W22 strains produced 220, 152 and 120 mg/l, respectively. While the pH for highest EPS production by L. delbruckii subsp. bulgaricus strains was 6.2 (in B3 strain: 211 mg/l, in G12 strain: 175 mg/l), for highest EPS production by S. thermophilus strain it was 6.8 (114 mg/l). |
| Databáze: | OpenAIRE |
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