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. 2020 May 11;10:88. doi: 10.1186/s13568-020-01023-5

Fig. 4.

Fig. 4

The effect of time (a, b), ectoenzyme amount (c, d) and substrate amount (e, f) on biotransformation of 5-HMF. Data were represented as mean ± SD and the experiment was repeated three times. Columns labelled with different lower case letters were significantly different at P < 0.05, and upper case letters were significantly different at P < 0.01 (S–N–K). For example, there was a significant difference in the biotransformation rates between 72 and 60 h (P < 0.01)