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

Table 6.

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 temperature

	Temperature	20 °C	25 °C	30 °C	35 °C	40 °C
Diameter of inhibition zone (mm)	supernatant	12.36 ± 0.46^b	14.47 ± 1.06^a	12.06 ± 0.26^b	–	–
Diameter of inhibition zone (mm)	Lipopeptides	14.34 ± 0.90^b	17.16 ± 0.46^a	15.53 ± 1.83^ab	11.00 ± 0.49^c	–
Yield of lipopeptide in the supernatant (mg/L)	iturin	0.65 ± 0.03^b	0.78 ± 0.07^a	0.86 ± 0.10^a	0.61 ± 0.07^b	0.45 ± 0.01^c
	fengycin	55.11 ± 4.74^a	56.47 ± 6.59^a	23.62 ± 6.34^b	9.55 ± 0.27^c	1.88 ± 0.28^c
	surfactin	0.59 ± 0.06^b	0.83 ± 0.19^b	0.78 ± 0.13^b	1.22 ± 0.21^a	1.47 ± 0.15^a
	Total lipopeptides	56.30 ± 4.76^a	57.94 ± 4.76^a	25.41 ± 6.37^b	11.39 ± 0.53^c	3.72 ± 0.36^c

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 temperature on the antibacterial activities and contents of lipopeptides were carried out using the culture media C