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Table 2 Performance comparison for biological hexanoic acid production

From: Production of medium-chain carboxylic acids by Megasphaera sp. MH with supplemental electron acceptors

Substrate

Inoculum

Time (Day)

Maximum hexanoic acid (g L−1)

Productivity (g L−1H)

References

Fructose, acetate, butyrate

Megasphaera sp. MH (pure culture)

1

9.7

0.41

This study

Galactitol, acetate, butyrate

Clostridium sp. BS-1 (pure culture)

3–16a

6.96–32.0a

0.28–0.34

Jeon et al. [28]

Glucose

Megasphaera elsdenii ATCC 25940 (pure culture)

5–8.3a

2.6–11.4a

0.03–0.13

Roddick and Britz [29]

Ethanol, acetate

C. kluyveri 3231B (pure culture)

3

12.8

0.175

Weimer and Stevenson [6]

Lactate

Mature pit mud, enriched Clostridium cluster IV

5–16a

12.93–23.93a

0.06–0.108a

Zhu et al. [30]

Acetate, butyrate, ethanol

Mixed culture

500

0.9

0.0375

Agler et al. [31]

  1. a Fed batch or product removal during fermentation