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New Green Animal Waste Hydrolysis Initiated by Malic Acid

Author(s):

Jiri Hanika*, Milena Rouskova , Stanislav Sabata, Frantisek Kastanek and Olga Solcova  

Abstract:


Background: A giant amount of poultry waste represents one of the threats to the environment, or conversely, a significant source of peptides and other substances in demand. A rational use of huge quantities of poultry waste, especially after industrial chicken processing, is one of the pillars of biorefinery of livestocks wastes.

Introduction: Six different animal wastes: chicken feathers, cartilages and rest after meat separation, sheep wool, rabbit hair, and the rest of goose feathers from blankets after cleaning were chosen for a hydrolysis test with malic acid as the initiator.

Result: The newly designed hydrolysis of animal wastes at 140 oC with malic acid for initiation was successfully verified for all animal wastes. Resulting hydrolysates contained a mixture of amino acids, peptides, proteins, glycoproteins and no salts.

Conclusion: Hydrolysate applications for agriculture was successfully tested as a biostimulant in the form of 10% water solution.

Keywords:

animal waste, acidic hydrolysis, malic acid, green hydrolysate, plant biostimulant

Affiliation:

Institute of Chemical Process Fundamentals, Czech Academy of Sciences, v. v. i., Rozvojova 135, 165 02 Prague 6, Institute of Chemical Process Fundamentals, Czech Academy of Sciences, v. v. i., Rozvojova 135, 165 02 Prague 6, Institute of Chemical Process Fundamentals, Czech Academy of Sciences, v. v. i., Rozvojova 135, 165 02 Prague 6, Institute of Chemical Process Fundamentals, Czech Academy of Sciences, v. v. i., Rozvojova 135, 165 02 Prague 6, Institute of Chemical Process Fundamentals, Czech Academy of Sciences, v. v. i., Rozvojova 135, 165 02 Prague 6



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