Characterization of Lignocellulosic Fruit Waste as an Alternative Feedstock for Bioethanol Production
Raymundo Sánchez Orozco,
Patricia Balderas Hernández,
Gabriela Roa Morales,
Fernando Ureña Núñez,
Juan Orozco Villafuerte,
Violeta Lugo Lugo,
Nelly Flores Ramírez,
Carlos Eduardo Barrera Díaz,
Pablo Cajero Vázquez
Affiliations
Raymundo Sánchez Orozco
Tecnológico de Estudios Superiores de Jocotitlán
Patricia Balderas Hernández
Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón esq. Paseo Tollocan s/n, Col. Residencial Colón, Toluca, Estado de México C.P. 50120, México
Gabriela Roa Morales
Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón esq. Paseo Tollocan s/n, Col. Residencial Colón, Toluca, Estado de México C.P. 50120, México
Fernando Ureña Núñez
Instituto Nacional de Investigaciones Nucleares, Apartado Postal 18-1027, Col. Escandón, México D.F. C.P. 11801, México
Juan Orozco Villafuerte
Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón esq. Paseo Tollocan s/n, Col. Residencial Colón, Toluca, Estado de México C.P. 50120, México
Violeta Lugo Lugo
Universidad Tecnológica del Valle de Toluca, Carretera del Departamento del D.F. Km 7.5, Ejido de Santa María Atarasquillo, Lerma, Estado de México C.P. 52050, México
Nelly Flores Ramírez
Facultad de Ingeniería en Tecnología de la Madera, Universidad Michoacana de San Nicolás de Hidalgo, Edif. D, Cd. Universitaria, Morelia, Michoacán C.P. 58060, México
Carlos Eduardo Barrera Díaz
Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón esq. Paseo Tollocan s/n, Col. Residencial Colón, Toluca, Estado de México C.P. 50120, México
Pablo Cajero Vázquez
Instituto Tecnológico de Estudios Superiores de Jocotitlán, Jocotitlán, Estado de México C.P. 50700, México
To use a new potential lignocellulosic bioresource that has several attractive agroenergy features for ethanol production, the chemical characterization and compositional analysis of several fruit wastes were carried out. Orange bagasse and orange, banana, and mango peels were studied to determine their general biomass characteristics and to provide detailed analysis of their chemical structures. Semiquantitative analysis showed that the components for each fruit waste differed with respect to chemical composition. Fourier transform infrared spectrometry (FTIR) of the residual biomass showed the presence of various functional groups – aldehydes or ketones (C=O), alkanes (C-C), and ethers (C-O-C). Even water molecules were detected, indicating the complex nature of the feedstocks. The concentrations of total sugars ranged between 0.487 g∙g−1 and 0.591 g∙g−1 of dry weight biomass. The thermal profiles (TG-DSC) of the residual fruits occurred in at least three steps, which are associated with the main components (hemicellulose, cellulose, and lignin). The decomposition by thermal analysis was completed at around 600 °C and was influenced by the nature of the component ratio.
