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Table 2 Growth, MVOC emissions and mycotoxin production by Stachybotrys chartarum growing on ceiling tile

From: Microbial volatile organic compound emissions from Stachybotrys chartarumgrowing on gypsum wallboard and ceiling tile

Stachybotrys chartarumstrain Substratea Incubation period Anisole concentration 3-octanone concentration Mycotoxin concentration CFU log10
(Days) (μg/m3) (μg/m3) (ppb) Mean ± SD
Mean ± SDb(n)c Mean ± SD (n)
ATCC 201210 C Start 0.15 (2) BDLe NDd ND
   7 d 12.91 ± 3.29 (2) BDL ND ND
   14 d 6.51 ± 0.26 (2) BDL ND ND
   21 d 3.86 ± 0.05 (2) BDL ND ND
ATCC 62762 C Start 1.45 ± 0.35 (2) 2.77 ± 0.45 (2) < 0.2 TFTC
   7 d 13.97 ± 2.50 (2) 8.68 ± 0.42 (2) 18 8.07 ± 7.55
   14 d 5.94 ± 0.47 (2) 2.02 ± 0.59 (2) 18 8.07 ± 7.55
   21 d 7.33 ± 0.21 (2) 1.49 ± 0.36 (2) > 18 8.95 ± 8.74
ATCC 34916 C Start 0.28 ± 0.01 (2) 0.40 ± 0.09 (2) < 0.2 TFTC
   7 d 46.41 ± 1.25 (2) 1.32 ± 0.41 (2) > 18 9.9 ± 9.19
   14 d 5.78 ± 0.53 (2) 1.42 ± 0.06 (2) > 18 9.54 ± 9.05
   21 d 3.09 ± 0.37 (2) 1.73 ± 0.66 (2) > 18 9.66 ± 9.22
   28 d 2.08 ± 0.14 (2) 3.56 ± 0.10 (2) 18 8.02 ± 8.00
ATCC 46994 C Start 2.28 ± 0.02 (2) 1.57 ± 0.55 (2) < 0.2 5.76 ± 5.91
   7 d 11.64 (1) 1.69 (1) 2.0 9.67 ± 9.11
   14 d 3.98 ± 0.08 (2) 2.64 ± 0.56 (2) 0.2 < x < 2.0 9.67 ± 9.26
   21 d 2.6 ± 0.2 (2) 15.76 ± 0.52 (2) 0.2 < x < 2.0 9.98 ± 9.52
   28 d 1.87 ± 0.16 (2) 42.18 ± 0.97 (2) 2.0 10.07 ± 9.38
RTI 3559 C Start 0.22 ± 0.08 (2) BDL ND ND
   7 d 13.12 ± 0.44 (2) 3.56 ± 0.96 (2) ND ND
   14 d 4.13 ± 0.33 (2) BDL ND ND
   21 d 1.95 ± 0.21 (2) BDL ND ND
RTI 5802 C Start 0.23 ± 0.05 (2) 3.27 ± 1.22 (2) < 0.2 TFTC
   7 d 13.10 ± 3.05 (2) 10.07 ± 0.93 (2) 2.0 9.06 ± 8.77
   14 d 4.19 ± 0.58 (2) 3.72 ± 0.64 (2) 0.2 < x < 2.0 9.06 ± 8.77
   21 d 7.48 ± 0.75 (2) 3.53 ± 0.70 (2) 2.0 9.53 ± 9.16
  1. aC, ceiling tile; bSD, standard deviation; cn, number of chambers with same strain, tested during same incubation period; dND, not determined; eBDL, below detection limit.