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Table 2 Comparison of conversion rates and yields of 4-AD, ADD and 9OH-AD from phytosterol by a variety of Mycobacterium strains

From: Efficient conversion of phytosterols into 4-androstene-3,17-dione and its C1,2-dehydrogenized and 9α-hydroxylated derivatives by engineered Mycobacteria

Strain

Phytosterol concentration

(g/L)

Yield

Conversion rate

References

4-AD (g/L)

ADD (g/L)

9OH-AD (g/L)

4-AD-producing strains

 Mycobacterium sp. ATCC 25795

15

6.85

5.57

 N/A

45.67% (4-AD); 37.13% (ADD)

[64]

 Mycobacterium sp. B-3683

5

2.35

 N/A

N/A

47%

[65]

 Mycobacterium sp. B-3805

20

7.4

 N/A

N/A

37%

[51]

 Mycobacterium smegmatis MC2 155

10

8.8-9.0

1.0-1.1

 N/A

N/A

[26]

 Mycobacterium sp. HGMS2

10

5.62

1.30

0.30

47.2%

This work

 Mycobacterium sp. HGMS2

80

31.4

6.26

0.88

40.6%

This work

 Mycobacterium sp. HGMS2Δkstd211 + ΔkshB122

10

6.22

NO

NO

51.6%

This work

 Mycobacterium sp. HGMS2Δkstd211 + ΔkshB122

80

38.3

NO

NO

48.7%

This work

ADD-producing strains

 Mycobacterium neoaurum NwIB-04

15

0.096

4.94

 N/A

32.93%

[32]

 Mycobacterium neoaurum NwIB-01

0.4

 N/A

0.174

 N/A

43.5%

[31]

 Mycobacterium sp. HGMS2kstd2 + Δkstd211+ΔkshB122

10

NO

4.12

NO

44.2%

This work

 Mycobacterium sp. HGMS2kstd2 + Δkstd211+ΔkshB122

80

NO

34.2

NO

42.5%

This work

9OH-AD-producing strains

 Mycobacterium sp. MS136

13

N/A

N/A

6.0

40%

[21]

 Mycobacterium neoaurum 25795 mutant

20

N/A

N/A

10.27

51.2%

[63]

 Mycobacterium neoaurum ATCC 25795 mutant

15

N/A

N/A

6.20

41.33%

[30]

 Mycobacterium sp. HGMS2kshA51 + Δkstd211+ΔkshA226

10

NO

NO

4.2

44.2%

This work

 Mycobacterium sp. HGMS2kshA51 + Δkstd211+ΔkshA226

80

NO

NO

37.2

40.3%

This work

  1. N/A data not available, SD significant detectable, NO not observable