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Table 2 The characteristics of EPS under various Zn stress (10, 20, 30, 40, 50 mg L− 1)

From: Co-cultivation, metal stress and molasses: strategies to improving exopolymeric yield and metal removal efficacy

EPS sample

EPS yield (mg mL− 1)

Carbohydrate content (μg mg− 1)

Protein content (μg mg− 1)

B. cereus

0.21 ± 0.07

258 ± 18

43 ± 5

B. cereus with Zn 10 mg L− 1

0.24 ± 0.05

148 ± 12*

51 ± 4*

B. cereus with Zn 20 mg L− 1

0.29 ± 0.11*

182 ± 10*

52 ± 6*

B. cereus with Zn 30 mg L− 1

0.19 ± 0.06

166 ± 15*

51 ± 4*

B. cereus with Zn 40 mg L− 1

0.15 ± 0.04*

145 ± 17*

49 ± 8*

B. cereus with Zn 50 mg L− 1

0.14 ± 0.04*

119 ± 14*

49 ± 6*

  1. *indicates a significant difference for EPS properties from B. cereus exposed to various Zn concentrations compared to control (B. cereus only, without Zn stress) according to T-test (p < 0.05)
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Sustainable Environment Research

ISSN: 2468-2039

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