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Table 3 Evaluation of EPS synthesis by different A. chroococcum strains in liquid media containing vinasse (1%) without and with 2% or 5% of sucrose after 48 h of incubation at 30 °C

From: Bioprospecting of exopolysaccharide-producing bacteria from different natural ecosystems for biopolymer synthesis from vinasse

A. chroococcum strains

V (1%)

V (1%) S (2%)

V (1%) S (5%)

Growth*

EPS§

Growth*

EPS§

Growth*

EPS§,†

76A

+

− +

+

− +

+

+

25.3 ± 0.10a

67B

–

–

–

–

+

+

22.8 ± 0.22b

AZ1

–

–

–

–

+

+

21.5 ± 0.26c

  1. V vinasse, S sucrose
  2. *bacterial growth: − = absence of growth; + = presence of growth (about 108 CFU/mL)
  3. §EPS synthesis: − = no synthesis of EPS; − + = low synthesis of EPS; + = high synthesis of EPS
  4. †mg of EPS/30 mL of medium. The values represent the mean ± S.D. of three replicates of independent experiments. Different letters indicate significant difference (P ≤ 0.01)