Fibrolytic activity of four Trichoderma strains grown on agro-industrial residues

Revista de la Facultad de Ciencias Agrarias

María del CarmenMontes¹  OctavioLoera²  VickyGarcía³  Germán DavidMendoza³ 

[1] Departamento de Biotecnología y Bioingeniería. Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional. Av. Instituto Politécnico Nacional 2508. C. P. 07300. México. D. F. México.;Universidad Autónoma Metropolitana Iztapalapa. Departamento de Biotecnología. Av. San Rafael Atlixco 186. Colonia Vicentina. C. P. 09340. Delegación Iztapalapa. D. F. México. ;Universidad Autónoma Metropolitana Xochimilco. Doctorado en Ciencias Agropecuarias. Calzada del Hueso 1100. Col. Villa Quietud, C. P. 04960. Delegación Coyoacán. D. F. México. ;

关键词: cellulolytic activity;    xylanolytic activity.;    enzymes;    agro-industrial waste;    Trichoderma;   

DOI  :  

来源: DOAJ

【 摘 要 】

The aim of this study was to compare the cellulolytic and xylanolytic activities of two strains of Trichoderma viride, one of Trichoderma reesei and one of Trichoderma harzianum grown on four different substrates. Each substrate contained 20% wheat bran and 80% agro-industrial waste (corn stover (CS), sugarcane bagasse (SCB), Yucca schidigera fiber (YS), or compost elaborated from solid waste generated in the university cafeteria (CSW)). An interaction (P < 0.01) between the substrate and strain was detected for both cellulolytic and xylanolytic enzyme activities. The highest cellulolytic activity (P < 0.01) was obtained with T. reesei grown on YS, CS, and SBC, and the lowest was from the two T. viride strains grown on most of the substrates. The highest xylanolytic activities (P < 0.01) were detected for T. harzianum with YS and SCB and T. reesei with CSW and CS, while one T. viride strain exhibited intermediate and the other showed the lowest activity. In conclusion, T. reesei CDBB356 showed the highest fibrolytic activity for most of the tested substrates, a finding that suggests it has the highest potential for fibrolytic enzyme production. There is a potential application for T. reesei CDBB356 enzymes on ruminant feed supplements to improve forage digestibility.

【 授权许可】

Unknown