Alkali-peroxide treatment of sugar cane bagasse : Effect of chemical charges on the efficiency of xylan isolation and susceptibility of bagasse to saccharification
Sugar cane is a promising raw material for the extraction of hemicelluloses. An alkali treatment of sugar cane bagasse under proper conditions followed by a precipitation using a reasonable quantity of ethanol can be an effective method to isolate these polysaccharides. In this work, bagasse is trea...
Guardado en:
| Autores principales: | , , , , , |
|---|---|
| Formato: | Articulo Preprint |
| Lenguaje: | Inglés |
| Publicado: |
2022
|
| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/146478 |
| Aporte de: |
| id |
I19-R120-10915-146478 |
|---|---|
| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ingeniería Química Hemicellulose extraction Alkali consumption Peroxide effect Enzymatic hydrolysis |
| spellingShingle |
Ingeniería Química Hemicellulose extraction Alkali consumption Peroxide effect Enzymatic hydrolysis Solier, Yamil Nahún Mocchiutti, Paulina Cabrera, María Noel Saparrat, Mario Carlos Nazareno Zanuttini, Miguel Ángel Mario Inalbon, María Cristina Alkali-peroxide treatment of sugar cane bagasse : Effect of chemical charges on the efficiency of xylan isolation and susceptibility of bagasse to saccharification |
| topic_facet |
Ingeniería Química Hemicellulose extraction Alkali consumption Peroxide effect Enzymatic hydrolysis |
| description |
Sugar cane is a promising raw material for the extraction of hemicelluloses. An alkali treatment of sugar cane bagasse under proper conditions followed by a precipitation using a reasonable quantity of ethanol can be an effective method to isolate these polysaccharides. In this work, bagasse is treated to obtain two products: (a) polymeric hemicellulose and (b) an enzymatic hydrolysate from the treated bagasse after hemicellulose extraction. The effects of charges of sodium hydroxide (10, 20, 40% w/w) and hydrogen peroxide (0, 10, 20% w/w) in the alkali treatment were evaluated. A 3² experimental design was considered under control of metal ions and inert atmosphere during alkaline treatment. An acceptable proportion of xylose plus arabinose could be extracted from bagasse (up to 18.4 g/100 g of bagasse). Both the alkali and peroxide showed strong effects on the yield of the extraction, as well as on the yield of the precipitation in ethanol-water solution. Besides, the susceptibility of bagasse for cellulolytic enzymatic hydrolysis is improved. The highest hemicellulose precipitation yield was 85% which corresponded to the treatment with the highest alkali charge without peroxide. The highest yield of enzymatic hydrolysis was obtained for the highest alkali and peroxide charges. |
| format |
Articulo Preprint |
| author |
Solier, Yamil Nahún Mocchiutti, Paulina Cabrera, María Noel Saparrat, Mario Carlos Nazareno Zanuttini, Miguel Ángel Mario Inalbon, María Cristina |
| author_facet |
Solier, Yamil Nahún Mocchiutti, Paulina Cabrera, María Noel Saparrat, Mario Carlos Nazareno Zanuttini, Miguel Ángel Mario Inalbon, María Cristina |
| author_sort |
Solier, Yamil Nahún |
| title |
Alkali-peroxide treatment of sugar cane bagasse : Effect of chemical charges on the efficiency of xylan isolation and susceptibility of bagasse to saccharification |
| title_short |
Alkali-peroxide treatment of sugar cane bagasse : Effect of chemical charges on the efficiency of xylan isolation and susceptibility of bagasse to saccharification |
| title_full |
Alkali-peroxide treatment of sugar cane bagasse : Effect of chemical charges on the efficiency of xylan isolation and susceptibility of bagasse to saccharification |
| title_fullStr |
Alkali-peroxide treatment of sugar cane bagasse : Effect of chemical charges on the efficiency of xylan isolation and susceptibility of bagasse to saccharification |
| title_full_unstemmed |
Alkali-peroxide treatment of sugar cane bagasse : Effect of chemical charges on the efficiency of xylan isolation and susceptibility of bagasse to saccharification |
| title_sort |
alkali-peroxide treatment of sugar cane bagasse : effect of chemical charges on the efficiency of xylan isolation and susceptibility of bagasse to saccharification |
| publishDate |
2022 |
| url |
http://sedici.unlp.edu.ar/handle/10915/146478 |
| work_keys_str_mv |
AT solieryamilnahun alkaliperoxidetreatmentofsugarcanebagasseeffectofchemicalchargesontheefficiencyofxylanisolationandsusceptibilityofbagassetosaccharification AT mocchiuttipaulina alkaliperoxidetreatmentofsugarcanebagasseeffectofchemicalchargesontheefficiencyofxylanisolationandsusceptibilityofbagassetosaccharification AT cabreramarianoel alkaliperoxidetreatmentofsugarcanebagasseeffectofchemicalchargesontheefficiencyofxylanisolationandsusceptibilityofbagassetosaccharification AT saparratmariocarlosnazareno alkaliperoxidetreatmentofsugarcanebagasseeffectofchemicalchargesontheefficiencyofxylanisolationandsusceptibilityofbagassetosaccharification AT zanuttinimiguelangelmario alkaliperoxidetreatmentofsugarcanebagasseeffectofchemicalchargesontheefficiencyofxylanisolationandsusceptibilityofbagassetosaccharification AT inalbonmariacristina alkaliperoxidetreatmentofsugarcanebagasseeffectofchemicalchargesontheefficiencyofxylanisolationandsusceptibilityofbagassetosaccharification |
| bdutipo_str |
Repositorios |
| _version_ |
1764820461298909185 |