Precipitation of lignins from organosolv and kraft black liquor of bamboo: Influence of functionality using Fourier Transform Infrared Spectroscopy (FTIR)
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In Nigeria, bamboo is underutilized, and Lignin can be extracted from these bamboos for high value-added use. In this research, the influence of Functionality on the properties of black liquor and isolated Lignin from kraft and organosolv processes using Bambusa vulgaris as biomass source were evaluated. FTIR (Fourier Transform Infrared Spectroscopy) was used to determine the Functionality of Lignin at different volume ratios. The characteristic bands located between 3500-3000 indicate the existence of alcohol and carboxylic groups in Lignin isolated from Ethanol, Peroxyformic, and Kraft black liquor, which resonates at almost the same wavelength. It implies that the Lignin isolated from Aceticformic black liquor does not provide any information about the secondary structure of this functional group. The Functionality of Organosolv and Kraft lignin showed that Alcohol and Carboxylic Acids, Alkanes and Alkyls, Carbonyls, Alkenes, Amide, and Alkyl halides are functional groups present with a similar structure for all the Lignin isolated from Organosolv and Kraft black liquor. These results confirmed that the underutilization of bamboo could be plunged into making value- added products such as natural polymer in transparent wood, fertilizers, drugs, resins, and adhesive formulation. Exploring these new research areas could provide potential benefits for consumers, the manufacturing industry, the environment, and the green pathway to growth and sustainability.
Keywords: Lignin; Bamboo; FTIR; Organosolv Lignin; Kraft Lignin
ID: 3486307