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Table 1 Characteristics of raw, pre-treated (at pH 2.0 with 5.0 g activated carbon /100 ml raw vinasse) vinasse and spent medium after bioprocessing

From: Utilization of vinasse for production of poly-3-(hydroxybutyrate-co-hydroxyvalerate) by Haloferax mediterranei

Parameter

Raw vinasse

After pre-treatment

After bioprocessing

25% pre-treated

50% pre-treated

25% pre-treated

50% pre-treated

pH

3.5 ± 0.5

4.0 ± 0.5

4.0 ± 0.5

8.2 ± 0.5

8.1 ± 0.5

BOD5 (mg/l)

78170 ± 120

8467 ± 35

15275 ± 38

1800 ± 27

2250 ± 45

COD (mg/l)

90837 ± 45

13950 ± 84

23134 ± 62

2690 ± 17

3850 ± 27

Salinity (mS/cm)

28.5 ± 0.4

7.2 ± 0.2

13.5 ± 0.5

415 ± 11

445 ± 20

Total organic carbon (mg/l)

16540 ± 35

2764 ± 35

6860 ± 54

305 ± 29

359 ± 43

Total carbohydrate (mg/l)

112581 ± 125

22637 ± 87

32935 ± 71

409.5 ± 25.5

604.5 ± 55

Total Kjeldahl nitrogen (mg/l)

471 ± 15

97 ± 18

175.5 ± 22

14 ± 1.5

17 ± 2

Phosphate (mg/l)

2875 ± 10

468 ± 31

938 ± 91

154 ± 12

195 ± 9

Total polyphenolic compounds (mg/l)

667 ± 10

21 ± 0.5

48 ± 1.5

16 ± 2

39 ± 5

  1. The mean values of three determinations in duplicate sets are reported.