. 2020 Jun 15;20:160. doi: 10.1186/s12866-020-01851-2

Table 5.

Diameter of inhibition zone of the culture supernatant and crude lipopeptides (10 mg/mL) produced by FJAT-46737 against Ralstonia solanacearum FJAT-91 and the content of lipopeptide under different culture medium

	Medium	A	B	C	D	E	F
Diameter of inhibition zone (mm)	supernatant	–	–	15.75 ± 0.38^ab	14.93 ± 0.77^b	16.36 ± 0.60^a	12.77 ± 0.88^c
Diameter of inhibition zone (mm)	Lipopeptides	13.88 ± 2.54^b	–	21.41 ± 1.60^a	19.15 ± 0.78^a	19.75 ± 0.93^a	15.67 ± 1.00^b
Yield of lipopeptide in the supernatant (mg/L)	iturin	0.53 ± 0.20^cd	0.31 ± 0.09^d	0.98 ± 0.02^b	0.68 ± 0.14^c	1.99 ± 0.18^a	0.38 ± 0.02^d
	fengycin	22.17 ± 11.94^b	9.03 ± 1.69^b	58.66 ± 9.81^a	50.37 ± 12.46^a	24.34 ± 2.75^b	9.17 ± 1.21^b
	surfactin	0.65 ± 0.42^a	0.55 ± 0.23^a	1.39 ± 0.06^a	1.21 ± 0.35^a	0.61 ± 0.06^a	0.59 ± 0.13^a
	Total lipopeptides	23.34 ± 12.54^b	10.07 ± 1.80^b	61.04 ± 9.86^a	52.27 ± 12.70^a	27.54 ± 3.90^b	10.22 ± 1.29^b

Note: Values were expressed as mean ± standard deviation (n = 3)

The difference letter in the same row indicated that the difference between the grades is significantly through Duncan test (p < 0.05). The effects of medium components on the antibacterial activities and contents of lipopeptides were carried out at 25 °C