Journal
BIORESOURCE TECHNOLOGY
Volume 103, Issue 1, Pages 425-431Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2011.09.136
Keywords
Miscanthus sinensis; Microwave irradiation; Two-stage pretreatment
Funding
- The National Research University of CHE
- Ratchadaphiseksomphot Endowment Fund [EN269B]
- National center of Excellence for Petroleum, Petrochemicals, and Advanced materials, Chulalongkorn University
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Microwave-assisted ammonium hydroxide (NH4OH) followed by phosphoric acid (H3PO4) treatments were used to release monomeric sugars from Miscanthus sinensis grown in Cha-Chueng-Sao province, Thailand. Treatment with 1.0% (w/v) NH4OH, 15:1 liquid-to-solid ratio (LSR) at 120 degrees C temperature for 15 min liberated 2.9 g of monomeric sugars per 100 g of dried biomass, whereas the corresponding yield for a treatment with 1.78% v/v H3PO4, 15:1 LSR at 140 degrees C for 30 min was 62.3 g/100 g. The two-stage pretreatment, treatment with NH4OH at 120 degrees C temperature for 15 min followed by treatment with H3PO4 at 140 degrees C for 30 min, impressively provided the highest total monomeric sugar yield of 71.6 g/100 g dried biomass. (C) 2011 Elsevier Ltd. All rights reserved.
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