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. 2020 Oct 2;19:187. doi: 10.1186/s12934-020-01442-w

Fig. 1.

Fig. 1

Isolation and screening of β-sitosterol-degrading strains. a Conversion rates of four HGMS strains for β-sitosterol were compared with that of the M. neoaurum NRRL B-3805 strain. b HPLC analysis of extracts from the fermentation broth. HAS, 3-hydroxy-9,10-secoandrost-1,3,5(10)-triene-9,17-dione; 9OH-AD, 9-hydroxyl-4-androstene-3,17-dione; ADD, 1,4-androstene-3,17-dione; 4-AD, 4-androstene-3,17-dione; BA, 1-hydroxy-20-methylpregn-4-en-3-one. These peaks were identified by mass spectrometry