Results (
Thai) 2:
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This study assessed the distribution and species occurrence of microscopic fungi isolated from two types of self-heating lignocellulosic materials: (1) sugarcane filter cakes (SFC) and (2) sugarcane bagasse (SBG). Three sugar mill refineries in Thailand were chosen: the Eastern Sugar & Cane Co., Ltd. (Site I), the T. N. Sugar Industry Co., Ltd. (Site II), and the Buri Ram Sugar Factory Co., Ltd. (Site III). We isolated 79 strains, which represented 23 species in 11 genera. Eight Aspergillus species (37.8% of all species) were identified and within the mycoflora this genus was predominant. The most frequently encountered taxa, which represented either the most dominant fungi or the overlapping species on the two types of lignocellulosic materials (>10%), were A. fumigatus (35.4%), Paecilomyces variotii (13.9%), and A. terreus (12.6%). These taxa correlated with the temperature of the collected samples. Fungal abundance was highest on SBG from Site II (10 species), and the species diversity (1.90) and evenness (0.60) were the greatest on both SFC and SBG from Site II with the highest moisture content. Hence, the fungal diversity correlated with the humidity of the collected lignocellulosic samples. The lowest diversity was observed on SFC from Site III (1 species). A comparison of the fungal communities on the two lignocellulosic materials and at the three selected sites revealed few differences in species composition, and the fungi found in this study are discussed in relation to published data.
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