Response surface methodology was engaged for the optimization of diverse nutritional and physical parameters for laccase production by Streptomyces chartreusis strain NBRC 12753 in the submerged fermentation process. Screening of production parameters was executed using Plackett–Burman design and the variables with statistically momentous effects on laccase production were recognized. Variables...

The biofloculant production potential of a consortium of Streptomyces and Brachybacterium species were evaluated. Optimum bioflocculant yields (g/L) and flocculation activities (%) were observed for the following preferred nutritional sources: glucose (56%; 2.78 ± 0.15 g/L), (NH4)2NO3 (53%; 2.81 ± 0.37 g/L) and CaSO4 · H2O (47%; 2.19 ± 0.13 g/L). A Plackett-Burman design revealed the critical f...

This study investigated the use of anaerobic biodigestion as an ecological technique for treating organic waste in urban solid waste. Biogas production is carried out through action microorganisms, and enzymatic hydrolysis can increase biogas production, although it presents economic challenges. The aim was to pre-select microbiological groups enzymes optimize process using statistical tools. O...

The precipitation of struvite from wastewater is a potential alternative for the recovery nutrients, especially phosphorus, which an essential macronutrient agriculture but can be harmful to environment when improperly disposed in water bodies. In addition, has elements great added value agricultural activity (P, N, and Mg) is, therefore, considered sustainable fertilizer. its formation process...