Designated production of exopolysaccharide (EPS) and lactic acid with sugarbeet molasses by some lactic acid bacteria

Yeniel N., Beyatli Y., Aslim B., Yüksekdağ Z.

ZUCKERINDUSTRIE, vol.131, pp.841-845, 2006 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 131
  • Publication Date: 2006
  • Journal Name: ZUCKERINDUSTRIE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.841-845
  • Gazi University Affiliated: Yes

Abstract

Exopolysaccharide (EPS) and lactic acid production by two strains of L. delbruckii subsp. bulgaricus (133, G 12) and three strains of S. thermophilus (W22, T8, T12) were investigated. Exopolysaccharides and lactic acid production by these strains were determined by a spectrophotometric method in MRS/M17 broth medium and different sugarbeet molasses concentrations (1-5 % w/v concentration [1 -5 g molasses/ 100 mL water]) for different periods (24-48 h). The yield of exopolysaccharide and lactic acid, produced by the strains, ranged between 65-290 mg/L and 4.6-10.8 mg/mL respectively. It was observed that EPS production by these strains increased by increasing the molasses concentration, while lactic acid production by these strains decreased by increasing the molasses concentration.