Volatiles from Subtropical Convolvulaceae That Interfere with Bacterial Cell-to-Cell Communication as Potential Antipathogenic Drugs

Figure 3

EIMS profile of fraction 4 (+ spathulenol) and the assignments of the main mass fragmentation peaks. MS [m/z]: 220 [], 205 [M–CH₃]⁺, 203 [M–OH]⁺, 202 , 187 [M–CH₃–H₂O]⁺, 177 [M–CH₃–C=O]⁺ or [M–CH₃–CH₂=CH₂]⁺, 163 [C₁₂H₁₉]⁺, 159 [C₁₂H₁₅]⁺, 147 [C₁₁H₁₅]⁺, 145 [C₁₁H₁₃]⁺, 119 [C₉H₁₁]⁺, 117 [C₉H₉]⁺, 105 [C₈H₉]⁺, 91 [C₇H₇]⁺ (100%), 77 [C₆H₅]⁺, 67 [C₅H₇]⁺, 65 [C₅H₅]⁺, 51 [C₄H₃]⁺, and 43 [C₃H₇]⁺.