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The anaerobic bioavailability of two types of solid slaughterhouse waste (poultry and pig wastes) was studied
after the application of thermal pretreatment. Both wastes were characterized by different proportions between fats, proteins
and carbohydrates. The thermal pretreatments selected (70ºC for 60 min, and 133ºC and 3 bars for 20 min) were included in
the European regulations 1774/2002 & 92/2005 for higienization purposes. These pretreatments had a remarkable effect on
the solubilization of organic matter and on protein hydrolysis. No negative effects in methane or biogas yields were found in
both pretreated wastes, but the bioavailibity of organic matter after the pretreatment depended on the composition of each
waste, basically the presence of carbohydrates which could react with protein hydrolysis products (amino acids) giving
slowly or not anaerobically biodegradable products (Maillard compounds).
CitacióRodríguez-Abalde, Á.; Fernández, B.; Flotats, X. Effect of thermal pre-treatments on biogas production potential of solid slaughterhouse wastes. A: European Biomass Conference & Exhibition. "Proceedings of the 17th European Biomass Conference & Exhibition; From Research to Industry and Markets". Hamburg: 2009, p. 252-256.