01981nas a2200241   4500008004100000022001400041245016500055210006900220260009900289300001400388490000800402520103100410653001801441653001201459653001801471653002601489653002501515100001801540700001801558700002101576700001401597856012801611       2010                        eng d  a0960-852400aBiocatalytic approach for the utilization of hemicellulose for ethanol production from agricultural residue using thermostable xylanase and thermotolerant yeast0 aBiocatalytic approach for the utilization of hemicellulose for e  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLANDbELSEVIER SCI LTDcJUL  a5366-53730 v1013 a<p>A hydrolysis of 62% and 50% for OSX (Oat spelt xylan) and WBH (Wheat bran hemicellulose) were obtained in 36 h and 48 h using Accellerase(TM) 1000 at 50 degrees C wherein thermostable xylanase from alkalothermophilic Thermomonospora sp. yielded 67% (OSX) in 3 h and 58% (WBH) in 24 h at 60 degrees C, favouring a reduction in process time and enzyme dosage. The rate of hydrolysis with thermostable xylanase was increased by 20% with the addition of nonionic surfactant tween 80 or biosurfactant sophorolipid. The simultaneous saccharification and fermentation (SSF) of OSX and WBH using thermostable xylanase and D. hansenii in batch cultures produced 9.1 g/L and 9.5 g/L of ethanol, respectively and had a shorter overall process time than the separate hydrolysis and fermentation (SHF). The immobilized yeast cells in Ca-alginate matrix produced ethanol with a yield of 0.46 g/g from hemicellulosic hydrolysates and were reused six times with 100% fermentation efficiency. (C) 2010 Elsevier Ltd. All rights reserved.</p>10aBiosurfactant10aEthanol10aHemicellulose10aThermostable xylanase10aThermotolerant yeast1 aMenon, Vishnu1 aPrakash, Gyan1 aPrabhune, Asmita1 aRao, Mala  uhttp://library.ncl.res.in/content/biocatalytic-approach-utilization-hemicellulose-ethanol-production-agricultural-residue-002313nas a2200217   4500008004100000022001400041245015200055210006900207260005700276300001000333490000700343520147800350653001301828653001201841653001101853653003601864100001801900700002701918700002101945856012901966       2013                        eng d  a1590-426100aEvaluation of ethanol production by a new isolate of yeast during fermentation in synthetic medium and sugarcane bagasse hemicellulosic hydrolysate0 aEvaluation of ethanol production by a new isolate of yeast durin  a233 SPRING ST, NEW YORK, NY 10013 USAbSPRINGERcMAR  a63-700 v633 a<p>A new xylose fermenting yeast was isolated from over-ripe banana by enrichment in xylose-containing medium. The phylogenetic analysis of ITS1-5.8S-ITS2 region sequences of ribosomal RNA of isolate BY2 revealed that it shows affiliation to genus Pichia and clades with Pichia caribbica. In batch fermentation, Pichia strain BY2 fermented xylose, producing 15 g l(-1) ethanol from 30 g l(-1) xylose under shaking conditions at 28A degrees C, with ethanol yield of 0.5 g g(-1) and volumetric productivity of 0.31 g l(-1) h(-1). The optimum pH range for ethanol production from xylose by Pichia strain BY2 was 5-7. Pichia strain BY2 also produced 6.08 g l(-1) ethanol from 30 g l(-1) arabinose. Pichia strain BY2 can utilize sugarcane bagasse hemicellulose acid hydrolysate for alcohol production, efficiency of fermentation was improved by neutralization, and sequential use of activated charcoal adsorption method. Percent total sugar utilized and ethanol yield for the untreated hydrolysate was 17.14% w/v and 0.33 g g(-1), respectively, compared with 66.79% w/v and 0.45 g g(-1), respectively, for treated hemicellulose acid hydrolysate. This new yeast isolate showed ethanol yield of 0.45 g g(-1) and volumetric productivity of 0.33 g l(-1) h(-1) from sugarcane bagasse hemicellulose hydrolysate detoxified by neutralization and activated charcoal treatment, and has potential application in practical process of ethanol production from lignocellulosic hydrolysate.</p>10aD-xylose10aEthanol10aPichia10aSugarcane bagasse hemicellulose1 aHande, Aparna1 aMahajan, Siddharth, A.1 aPrabhune, Asmita  uhttp://library.ncl.res.in/content/evaluation-ethanol-production-new-isolate-yeast-during-fermentation-synthetic-medium-and-0