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

Table 3.

Determination of nucleic acids release by measuring the absorbance of the aqueous solutions surrounding the bacteria at 260 nm (OD_{260 nm}) upon different ultrasound treatments.

Time (min)	OD_{260 nm}
Time (min)	64 W/cm²	191 W/cm²	382 W/cm²	573 W/cm²
9	2.136 ± 0.027^J	2.554 ± 0.030^G	2.856 ± 0.014^F	3.226 ± 0.008^D
18	2.282 ± 0.023^I	2.827 ± 0.023^F	3.307 ± 0.007^C	3.391 ± 0.016^B
27	2.423 ± 0.010^H	2.966 ± 0.017^E	3.382 ± 0.010^B	3.637 ± 0.013^A

Note: The release of nucleic acids in control groups were 0.317 ± 0.013^K.

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