Table 2: Fungal counts (CFU/g) from pre- and poststored brewer’s grains samples in DRBC and DG18 culture media.

Fungal counts (CFU/g)
SamplesSection of siloMean-Range*Contaminated samples (%) over GMP (2008) [26] limits
DRBCDG18

Upper2.9 × 103a1.6 × 103a
(3.3 × 102–6.1 × 103) (1 × 102–4.8 × 103)
Lower2.2 × 103a1.8 × 103a
Prestored(2.8 × 102–5.2 × 103)(3.1 × 102–4.4 × 103) 0 %
Border2.5 × 103a1.5 × 103a
(2.8 × 102–6.1 × 103)(1 × 102–4.8 × 103)
Middle1.7 × 103a1.8 × 103a
(1 × 103–2.8 × 103)(3.1 × 102–4.4 × 103)

Upper1.3 × 105abc1.5 × 105abc
(3.1 × 103–3 × 105)(1.6 × 103–4.3 × 105)
Lower2.5 × 104abc2.3 × 104ab
Poststored(1.2 × 103–5 × 104)(3.4 × 103–6.7 × 104) 80%
Border1.8 105bc6.2 × 103a
(1 × 103–1.4 × 106)(1.2 × 103–2.1 × 104)
Middle2.3 × 105c5.2 × 104abc
(1.3 × 104–5.2 × 105)(1.3 × 104–1.5 × 105)

*Mean values of counts. Minor and major values count. Detection limit: 1 102 CFU/g. Maximum recommended level: 1 104 CFU/g [26]. DRBC: dichloran rose bengal chloranphenicol. DG18: dichloran glycerol 18%. Letters in common are not significantly different according to Fisher’s protected LSD test ( ).