The GC chromatogram of the possible GBSC56 volatiles was identified through GC-MS analysis. Similar VOCs in the control are excluded. (A) The chromatograph of VOCs produced in Control. (B) The VOCs produced by GBSC56. The VOCs were selected in a time duration of 0–30 min. The numbering represents peaks for different VOCs. The pure possible VOCs identified are (1) cyclopentene (CP), (2) dimethyl disulfide (DMDS), (3) methyl isovalerate (MIV), (4) butanoic acid, 3-methyl, ethyl ester (BMEE), (5) ethyl tiglate (ET), (6) ethyl-2-methyl butyrate (EMB), (7) 2- methylheptonic acid (MHA), (8) octanoic acid 2-methyl (OAM), (14) 2-undecanone (2-UD), (17) pentadecane (PD).