Abstract
A selective, green and fast method for the production of glucose from rice (Oryza sativa) straw is demonstrated. Aq. ammonia based pretreatment techniques played a crucial role in the removal of lignin and xylan from rice straw which in-turn accelerated glucan hydrolysis and improved the selectivity of glucose production. The cellulose isolated from rice straw is further hydrolyzed to glucose using a solid acid catalyst (activated carbon supported phosphotungstic acid, ∼40 wt% HPW/AC). Microwave irradiation of cellulose from rice straw for a short duration of 5 min at 100°C yielded 11.2 wt% glucose relative to 8 wt% glucose produced from a hydrothermal hydrolysis process (3 h, 150°C) with a substrate to catalyst wt/wt ratio of 1. Thus an effective biomass pretreatment (aq. ammonia-dil. H2SO4) method and an accelerated selective biomass hydrolysis process is developed.
| Original language | English |
|---|---|
| Pages (from-to) | 31-38 |
| Number of pages | 8 |
| Journal | RSC Advances |
| Volume | 6 |
| Issue number | 1 |
| DOIs | |
| State | Published - 15 Dec 2015 |
Bibliographical note
Publisher Copyright:© The Royal Society of Chemistry 2016.
Funding
Gedanken thanks the Ministry of Science and Technology (MoST) for the research grants 3-9802, 3-99763 and the Israel Science Foundation (ISF) for supporting the research via a grant 598/12. Grateful thanks are due to Dr Alexander Varvak, Bar Ilan university, for the valuable assistance in the HPLC analysis.
| Funders | Funder number |
|---|---|
| Bar Ilan University | |
| Israel Science Foundation | 598/12 |
| Ministry of science and technology, Israel | 3-9802, 3-99763 |