Open AccessBioprocessing procedure of Waste Management using Liquid State Fermentation of Coffee Residues
Author(s) -
I. Obayuwana,
O.C. Eigbike
Publication year - 2020
Publication title -
journal of applied science and environmental management
Language(s) - English
Resource type - Journals
eISSN - 2659-1499
pISSN - 2659-1502
DOI - 10.4314/jasem.v24i5.23
Subject(s) - bioprocess , fermentation , raw material , chemistry , residue (chemistry) , food science , hydrolysis , yield (engineering) , microbiology and biotechnology , pulp and paper industry , biochemistry , biology , organic chemistry , materials science , engineering , paleontology , metallurgy
This study is aimed at utilizing the abundant coffee residue in Manchester using bioprocessing techniques to convert the raw materials into economically viable components. High amounts of carbohydrate were obtained in coffee residues, making up about 35-41% of the total solids on a dry basis; an increase of about 89.5% for total reducing sugars concentrations was observed to occur; indicating that indigenous bacterium was capable of breaking down and hydrolyzing complex polysaccharides and proteins in coffee residues. An increase of over 100% in free amino nitrogen (FAN) concentration were obtained over time, further indicating the significant synthesis of hydrolytic enzymes by the indigenous bacteria during Liquid state fermentation processes of bioprocessing. This study therefore, concludes that bioprocessing of coffee residues is feasible in obtaining optimum yield of valueadded products.
Keywords: bioprocessing, valorization, liquid state fermentation