| dc.creator | Nuanpeng,Sunan | |
| dc.creator | Laopaiboon,Lakkana | |
| dc.creator | Srinophakun,Penjit | |
| dc.creator | Klanrit,Preekamol | |
| dc.creator | Jaisil,Prasit | |
| dc.creator | Laopaiboon,Pattana | |
| dc.date | 2011-01-01 | |
| dc.date.accessioned | 2019-05-03T12:44:49Z | |
| dc.date.available | 2019-05-03T12:44:49Z | |
| dc.identifier | https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0717-34582011000100004 | |
| dc.identifier.uri | http://revistaschilenas.uchile.cl/handle/2250/85181 | |
| dc.description | Batch ethanol fermentations from sweet sorghum juice by Saccharomyces cerevisiae NP 01 were carried out in a 500 ml air-locked Erlenmeyer flask under very high gravity (VHG) and static conditions. The maximum ethanol production efficiency was obtained when 9 g l-1 of yeast extract was supplemented to the juice. The ethanol concentration (P), productivity (Qp) and yield (Yp/s) were 120.24 ± 1.35 g l-1, 3.01 ± 0.08 g l-1 h-1 and 0.49 ± 0.01, respectively. Scale up ethanol fermentation in a 5-litre bioreactor at an agitation rate of 100 rev min-1 revealed that P, Qp and Yp/s were 139.51 ± 0.11 g l-1, 3.49 ± 0.00 g l-1 h-1 and 0.49 ± 0.01, respectively, whereas lower P (119.53 ± 0.20 g l-1) and Qp (2.13 ± 0.01 g l-1 h-1) were obtained in a 50-litre bioreactor. In the repeated-batch fermentation in the 5-litre bioreactor with fill and drain volume of 50% of the working volume, lower P and Qp were observed in the subsequent batches. P in batch 2 to 8 ranged from 103.37 ± 0.28 to 109.53 ± 1.06 g l-1. | |
| dc.format | text/html | |
| dc.language | en | |
| dc.publisher | Pontificia Universidad Católica de Valparaíso | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.source | Electronic Journal of Biotechnology v.14 n.1 2011 | |
| dc.subject | batch | |
| dc.subject | ethanol fermentation | |
| dc.subject | repeated-batch | |
| dc.subject | scale up | |
| dc.subject | sweet sorghum | |
| dc.subject | VHG | |
| dc.title | Ethanol production from sweet sorghum juice under very high gravity conditions: Batch, repeated-batch and scale up fermentation | |
