![]() ![]() The peak at wavelength 1722.92cm-1 (aldehydes) conjugation with ketonic group, increased in treated samples of 7, 14 and 21 days as compared to control. An increase in the peak length at wavelength 2923.8cm-1 (CH 3 ) was observed in treated samples of 14 and 21 days, but there is no significant change in 7 days treated sample. In control, the peak at wavelength 3286.87 cm-1 (alcoholic) decreased in treated samples of paint after 7, 14 and 21 days (Fig. FTIR analysis of the treated paint films with three fungal strains showed few changes in sample spectra, as compared to control spectrum (Fig. The slow growth rate was observed with Bacillus subtilus leading to a slow biodegradation rate. 4) followed by an increase till 10 th day (Fig. However, initially a decrease in growth was observed for Bacillus sp., up to 6 th day (Fig. An increase in growth of Pseudomonas sp., was observed up to 4 th day (Fig. Microorganism under stress condition utilizes synthetic organic matter as a energy source ( Prescott et al., 2002 Gaylarde and Gaylarde, 2005). Maximum growth of Bacillus culture in emulsion paint was detected on 6th and 8th day. The growth level resumed and increased again after 10 th day of analysis. However, on 10 th day, an inconsistency in growth was observed when it decreased to an ~ 25% lower level. Optical density with bacterial cultures showed an increase in Bacillus sp. This increase in dry cell mass of fungal strains could be due to the fact that fungal strains used the paint as the sole carbon source in minimal salt media and with passage of time, they adjusted themselves on this carbon source resulting in a significant increase in growth (Kim, 2003 Aina et al. The data obtained depicted that fungal dry cell mass was increased from 0.1 to 0.7g between 7 to 28 days and then decreased (Fig. Dry cell mass experiment was carried out for paint degradation with three fungal strains and dry cell mass was calculated after 7, 14, 21, 28 and 35 days. growth is reported common on painted wall (Adeleye & adeleye, 2000 Gaylarde & Gaylarde, 2005 Shirakawa et al., 2010 ). The fungal species Aspergillus niger, Cladosporium sp. Fungal hyphae were observed on the plates (Arquiaga et al., 1995 Obidi et al., 2005). Plate assay results showed the fungal growth of Aspergillus, Phanerochaete chrysosporium and Rhizopus on the MSM agar plate containing paint as shown in Fig. The Fungal strains were screened out for the biodegradation of the paint on the basis of the fungal adherence on the MSM medium with paint as the only carbon source. observation results: Visual observation of fungal treated paint samples compared with control indicates that paint color was faded and surface became ruptured and fungal growth was also observed ( Fig.
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