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Int. J. Mol. Sci. 2009, 10(11), 4805-4815; doi:10.3390/ijms10114805
Article

Two-Stage Fungal Pre-Treatment for Improved Biogas Production from Sisal Leaf Decortication Residues

1,2
, 2,*  and 2
Received: 17 August 2009; in revised form: 1 October 2009 / Accepted: 23 October 2009 / Published: 6 November 2009
(This article belongs to the Section Green Chemistry)
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Abstract: Sisal leaf decortications residue (SLDR) is amongst the most abundant agroindustrial residues in Tanzania and is a good feedstock for biogas production. Pretreatment of the residue prior to its anaerobic digestion (AD) was investigated using a twostage pre-treatment approach with two fungal strains, CCHT-1 and Trichoderma reesei in succession in anaerobic batch bioreactors. AD of the pre-treated residue with CCTH-1 at 10% (wet weight inoculum/SLDR) inoculum concentration incubated for four days followed by incubation for eight days with 25% (wet weight inoculum/SLDR) of T. reesei gave a methane yield of 0.292 ± 0.04 m3 CH4/kg volatile solids (VS)added. On reversing the pre-treatment succession of the fungal inocula using the same parameters followed by AD, methane yield decreased by about 55%. Generally, an increment in the range of 30–101% in methane yield in comparison to the un-treated SLDR was obtained. The results confirmed the potential of CCHT-1 followed by Trichoderma reesei fungi pre-treatment prior to AD to achieve significant improvement in biogas production from SLDR.
Keywords: two-stage pre-treatment; sisal leaf decortications residue; biological; fungi; lignocellulose; anaerobic digestion two-stage pre-treatment; sisal leaf decortications residue; biological; fungi; lignocellulose; anaerobic digestion
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Muthangya, M.; Manoni Mshandete, A.; Kajumulo Kivaisi, A. Two-Stage Fungal Pre-Treatment for Improved Biogas Production from Sisal Leaf Decortication Residues. Int. J. Mol. Sci. 2009, 10, 4805-4815.

AMA Style

Muthangya M, Manoni Mshandete A, Kajumulo Kivaisi A. Two-Stage Fungal Pre-Treatment for Improved Biogas Production from Sisal Leaf Decortication Residues. International Journal of Molecular Sciences. 2009; 10(11):4805-4815.

Chicago/Turabian Style

Muthangya, Mutemi; Manoni Mshandete, Anthony; Kajumulo Kivaisi, Amelia. 2009. "Two-Stage Fungal Pre-Treatment for Improved Biogas Production from Sisal Leaf Decortication Residues." Int. J. Mol. Sci. 10, no. 11: 4805-4815.



Int. J. Mol. Sci. EISSN 1422-0067 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert