Fig. 5From: Bacillus aryabhattai TFG5-mediated synthesis of humic substances from coir pith wastesAbsorbance spectra of the liquid portion of coir pith biomass after treatment with B. aryabhattai TFG5. Day-wise spectral scan of the treated sterilized CWW showing a hump above 480–530 nm, which is related to humic substancesBack to article page