Fig. 4
The VOC identification and their effects on the fungus S9. The total ion current diagram of VOCs from No.1 after 24-h culture (A). Main peaks: 1, dimethyl disulfide (tR 4.03 min); 2, styrene (tR 7.88 min); 3, benzaldehyde (tR 10.09 min); 4, phenylacetaldehyde (tR 12.71 min); 5, phenylethyl alcohol (tR 14.84 min); 6, hexadecane (tR 28.09 min). Effects of main VOCs on fungal growth diameter (B) and HA content (C). Different VOC standards were added at 5 mg/mL on day 3 of the plate cultures of fungus S9 at 28 ℃ and the measurement was token after 2 days of the treatment. VOCs such as phenylacetaldehyde (PAA), hexadecane (HD), benzaldehyde (BD), phenylethyl alcohol (PEA), styrene (SN) and dimethyl disulfide (DMDS) were selected. Values are mean ± SD from three independent experiments. (*p < 0.05, **p < 0.01 versus fungal monoculture as the control group)