Fig. 2From: Improved biofertilizer properties of digestate from codigestion of brewer’s spent grain and palm oil mill effluent by manure supplementationInitial (ingestate) and final (digestate) viable bacterial loads (CFU mL− 1) during mesophilic anaerobic digestion for reactors A, B, C, and D. TAB – total anaerobic bacteria; E – EU limit for indicator bacteria in manure-based products according to animal by-product regulations [37]Back to article page