Design of a selective solid acid catalyst for the optimization of glucose production from Oryza sativa straw
- Authors
- Victor, Amudhavalli; Pulidindi, Indra Neel; Kim, Tae Hyun; Gedanken, Aharon
- Issue Date
- 2016
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- RSC ADVANCES, v.6, no.1, pp.31 - 38
- Indexed
- SCIE
SCOPUS
- Journal Title
- RSC ADVANCES
- Volume
- 6
- Number
- 1
- Start Page
- 31
- End Page
- 38
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/16108
- DOI
- 10.1039/c5ra20121g
- ISSN
- 2046-2069
- 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, similar to 40 wt% HPW/AC). Microwave irradiation of cellulose from rice straw for a short duration of 5 min at 100 degrees C yielded 11.2 wt% glucose relative to 8 wt% glucose produced from a hydrothermal hydrolysis process (3 h, 150 degrees 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.
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