. 2021 Mar 2;73:105509. doi: 10.1016/j.ultsonch.2021.105509

Table 4.

Measurements of protein release from bacteria after different ultrasound treatments.

Time (min)	OD_{280 nm}				Protein concentration (mg/mL)
Time (min)	64 W/cm²	191 W/cm²	382 W/cm²	573 W/cm²	64 W/cm²	191 W/cm²	382 W/cm²	573 W/cm²
9 min	1.262 ± 0.016^k	1.657 ± 0.011 ^h	1.947 ± 0.023^f	2.214 ± 0.008^d	1.750 ± 0.024^K	2.329 ± 0.016^H	2.753 ± 0.034^F	3.144 ± 0.012^D
18 min	1.346 ± 0.014^j	1.902 ± 0.016^g	2.250 ± 0.004^c	2.317 ± 0.015^b	1.873 ± 0.020^J	2.687 ± 0.024^G	3.197 ± 0.006^C	3.295 ± 0.022^B
27 min	1.433 ± 0.006ⁱ	1.991 ± 0.013^e	2.272 ± 0.014^c	2.488 ± 0.014^a	2.000 ± 0.009^I	2.817 ± 0.019^E	3.229 ± 0.020^B	3.546 ± 0.021^A

Note: The release of protein determined by OD_{280 nm} was 0.214 ± 0.010 in control groups; The concentration of released protein in control groups was 0.215 ± 0.015 mg/mL.

Different uppercase letters indicate a significant difference of protein concentrations from bacteria with different treatments (P < 0.05);

Different lowercase letters indicate a significant difference of protein release from bacteria with different treatments (P < 0.05).