Utilization of Soybean and Peanut Residues as Nutrient Sources for Hydrolyzed Paper Waste Sludge Fermentation by Acetobacter xylinum

Abstract

This study investigates the use of soybean and peanut residues as nutrient sources for the fermentation of hydrolyzed paper waste sludge (PWS) by Acetobacter xylinum. The nitrogen content of these residues was evaluated using Kjeldahl, CHN analysis, and Sorensen's methods. Results indicated that while higher concentrations of these residues are necessary compared to peptone, they can produce bacterial cellulose (BC) yields comparable to or exceeding those obtained with peptone. Peanut residue at 3.0 % w/v yielded a maximum of 4.17 ± 0.26 g/10 g PWS, surpassin g the peptone yield of 2.86 ± 0.03 g/10 g PWS. This approach reduces production costs and enhances sustainability by utilizing agricultural by-products effectively.