Hydrolysis and glycosidation of sugars during the esterification of fast pyrolysis bio-oil
Acid-catalysed esterification converts organic acids in bio-oil into useful esters. However, the conditions to carry out esterification also promote the hydrolysis of anhydro-sugars in bio-oil. This paper reports the hydrolysis and glycosidation of sugars during the esterification of bio-oil using A...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Journal Article |
| Published: |
Elsevier Science Ltd
2012
|
| Online Access: | http://hdl.handle.net/20.500.11937/23100 |
| _version_ | 1848751055972597760 |
|---|---|
| author | Gunawan, Richard Li, X. Larcher, Alfons Hu, Xun Mourant, Daniel Chaiwat, Weerawut Wu, Hongwei Li, Chun-Zhu |
| author_facet | Gunawan, Richard Li, X. Larcher, Alfons Hu, Xun Mourant, Daniel Chaiwat, Weerawut Wu, Hongwei Li, Chun-Zhu |
| author_sort | Gunawan, Richard |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Acid-catalysed esterification converts organic acids in bio-oil into useful esters. However, the conditions to carry out esterification also promote the hydrolysis of anhydro-sugars in bio-oil. This paper reports the hydrolysis and glycosidation of sugars during the esterification of bio-oil using Amberlyst-70 solid acid catalyst at 70–170 _C. The bio-oil was prepared from the fast pyrolysis of mallee biomass in a fluidised- bed reactor. Our results show that sugar oligomers and levoglucosan in bio-oil can be hydrolysed to form D-glucose, which further reacts with methanol to form methyl-a-D-glucopyranoside, concurrently with the esterification of acids (e.g. formic, acetic and propionic acids) in bio-oil. The effects of other important parameters such as catalyst loading and methanol to bio-oil ratio on the hydrolysis-glycosidation of sugar compounds present in bio-oil are also reported. |
| first_indexed | 2025-11-14T07:46:39Z |
| format | Journal Article |
| id | curtin-20.500.11937-23100 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:46:39Z |
| publishDate | 2012 |
| publisher | Elsevier Science Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-231002017-09-13T13:56:21Z Hydrolysis and glycosidation of sugars during the esterification of fast pyrolysis bio-oil Gunawan, Richard Li, X. Larcher, Alfons Hu, Xun Mourant, Daniel Chaiwat, Weerawut Wu, Hongwei Li, Chun-Zhu Acid-catalysed esterification converts organic acids in bio-oil into useful esters. However, the conditions to carry out esterification also promote the hydrolysis of anhydro-sugars in bio-oil. This paper reports the hydrolysis and glycosidation of sugars during the esterification of bio-oil using Amberlyst-70 solid acid catalyst at 70–170 _C. The bio-oil was prepared from the fast pyrolysis of mallee biomass in a fluidised- bed reactor. Our results show that sugar oligomers and levoglucosan in bio-oil can be hydrolysed to form D-glucose, which further reacts with methanol to form methyl-a-D-glucopyranoside, concurrently with the esterification of acids (e.g. formic, acetic and propionic acids) in bio-oil. The effects of other important parameters such as catalyst loading and methanol to bio-oil ratio on the hydrolysis-glycosidation of sugar compounds present in bio-oil are also reported. 2012 Journal Article http://hdl.handle.net/20.500.11937/23100 10.1016/j.fuel.2011.08.032 Elsevier Science Ltd restricted |
| spellingShingle | Gunawan, Richard Li, X. Larcher, Alfons Hu, Xun Mourant, Daniel Chaiwat, Weerawut Wu, Hongwei Li, Chun-Zhu Hydrolysis and glycosidation of sugars during the esterification of fast pyrolysis bio-oil |
| title | Hydrolysis and glycosidation of sugars during the esterification of fast pyrolysis bio-oil |
| title_full | Hydrolysis and glycosidation of sugars during the esterification of fast pyrolysis bio-oil |
| title_fullStr | Hydrolysis and glycosidation of sugars during the esterification of fast pyrolysis bio-oil |
| title_full_unstemmed | Hydrolysis and glycosidation of sugars during the esterification of fast pyrolysis bio-oil |
| title_short | Hydrolysis and glycosidation of sugars during the esterification of fast pyrolysis bio-oil |
| title_sort | hydrolysis and glycosidation of sugars during the esterification of fast pyrolysis bio-oil |
| url | http://hdl.handle.net/20.500.11937/23100 |