| dc.creator | Revin,Victor | |
| dc.creator | Atykyan,Nelli | |
| dc.creator | Zakharkin,Denis | |
| dc.date | 2016-03-01 | |
| dc.date.accessioned | 2019-05-03T12:45:23Z | |
| dc.date.available | 2019-05-03T12:45:23Z | |
| dc.identifier | https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0717-34582016000200003 | |
| dc.identifier.uri | http://revistaschilenas.uchile.cl/handle/2250/85536 | |
| dc.description | Background: A study of the correlation between the particle size of lignocellulosic substrates and ultrasound pretreatment on the efficiency of further enzymatic hydrolysis and fermentation to ethanol. Results: The maximum concentrations of glucose and, to a lesser extent, di- and trisaccharides were obtained in a series of experiments with 48-h enzymatic hydrolysis of pine raw materials ground at 380-100 rpm for 30 min. The highest glucose yield was observed at the end of the hydrolysis with a cellulase dosage of 10 mg of protein (204 ±21 units CMCase per g of sawdust). The greatest enzymatic hydrolysis efficiency was observed in a sample that combined two-stage grinding at 400 rpm with ultrasonic treatment for 5-10 min at a power of 10 W per kg of sawdust. The glucose yield in this case (35.5 g glucose l-1) increased twofold compared to ground substrate without further preparation. Conclusions: Using a mechanical two-stage grinding of lignocellulosic raw materials with ultrasonication increases the efficiency of subsequent enzymatic hydrolysis and fermentation. | |
| dc.format | text/html | |
| dc.language | en | |
| dc.publisher | Pontificia Universidad Católica de Valparaíso | |
| dc.relation | 10.1016/j.ejbt.2015.11.007 | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.source | Electronic Journal of Biotechnology v.19 n.2 2016 | |
| dc.subject | Bioethanol | |
| dc.subject | Ligsnocelluloses | |
| dc.subject | Yeast Saccharomyces cerevisiae | |
| dc.title | Enzymatic hydrolysis and fermentation of ultradispersed wood particles after ultrasonic pretreatment | |
