Abstract

BARDALES VASQUEZ, Cecilia Betzabet; CABOS SANCHEZ, Jeisson David; LEON TORRES, Carlos Alberto  and  JARA HUACACOLQUI, Estefany Lizbeth. Protein enrichment of the main agro-industrial lignocellulosic residues of the La Libertad Region with the joint association of Trichoderma reesei, Chaetomiun cellulolyticum and Candida utilis for animal feed. Arnaldoa [online]. 2020, vol.27, n.1, pp.99-114. ISSN 1815-8242.  http://dx.doi.org/10.22497/arnaldoa.271.27104.

This work aimed to protein enrich the main lignocellulosic residues of the La Libertad region with the joint association of Trichoderma reesei, Chaetomium cellulolyticum and Candida utilis in order to produce a food with a higher nutritional value than that traditionally ingested by livestock.8 lignocellulosic residues from the La Libertad region were used: Zea mays sprout and crown "hard yellow corn", brácteas and broza of Cynara scolymus var. lorca "artichoke", peladilla and broza of Asparagus officinalis "asparagus" and leaves of Saccharum officinalis "sugar cane" collected from agro-industrial companies, the same that went through a process of washing, drying and fractionation to be used as substrates in the fermentation process; the same system that was performed using an aerated tank-type glass bioreactor system, in which lignocellulosic residues were subjected to the action of the mixed association of microorganisms for a time of 96 hours. Using the Kjedalh method, the protein percentage of each residue was determined before and after treatment. The results indicate that hard yellow maize broza is the residue that generates the largest amount of ART corresponding to 49.7 g/L in a time of 96 hours of bioprocessing. In addition, from this residue the greatest amount of protein corresponding to 28.59% was obtained, higher than the percentage of initial protein of the same residue corresponding to 9.39% before being subjected to the action of the microorganisms. It is concluded that the mixed association of evaluated microorganisms manages to protein enrich lignocellulosic residues by making them an excellent option to improve animal feed.

Keywords : Chaetomium cellulolyticum; Trichoderma reesei; lignocellulosic residue.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )