Production of Exopolysaccharides by Strains of Streptococcus thermophilus  

Oleh:

Purwandari, Umi ; Vasiljevic, Todor

Jenis: Article from Journal - ilmiah nasional - terakreditasi DIKTI
Dalam koleksi: Microbiology Indonesia vol. 4 no. 1 (Apr. 2010), page 39-42.
Topik: Streptococcus thermophilus; Exopolysaccharides; Growth conditions
Fulltext: 8.PDF (3.65MB)

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: MM78 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Two strains of streptococcus thermophilus producing capsular and capsular-ropy exopolysaccharides ( EPS ) were axamined for their growth and EPS production in M17 medium supplemented with glucose, galactose or lactose and incubated at 30, 37 or 42'C for 24 hours. Growth parameters ( viable cells, OD, lactate production, pH ) and EPS production were determined. Flow behavior of the EPS dispersions was assessed as a function of concentration an temperature. Culture growth during incubation was affected by types of sugar, temperature and time. Growth was enhanced by glucose, lactose and higher incubation temperature. EPS concentration in the medium was greater in the capsular-ropy strain even under sub-optimal incubation temperature.

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