International Scientific Publications
© 2018 Science Events Ltd
Terms of Use  ·  Privacy Policy
Choose language English French Russian Bulgarian

Agriculture & Food, Volume 5, 2017

THE SUPERIORITY OF GAMMA-VALEROLACTONE (GVL) AS A NOVEL PRETREATMENT AGENT TO ENHANCE THE ENZYMATIC DIGESTIBILITY OF COTTON STALKS
Işık Semerci
Pages: 598-608
Published: 18 Oct 2017
Views: 345
Downloads: 172
Abstract: Cotton stalks were subjected to pretreatments using GVL-H2O, GVL-H2O-H2SO4, GVL-TEAHSO4, TEAHSO4-H2O and EMIMAc at 135°C and biomass loadings of 10% and 15% for one hour. The results demonstrated GVL as a promising pretreatment agent since GVL-H2O pretreated biomass gave similar enzymatic hydrolysis yields compared to the yields obtained from those subjected to pretreatment via triethylammonium hydrogen sulfate (TEAHSO4). GVL-H2O (80 wt.%-20 wt.%) pretreated cotton stalks at 10% biomass loading resulted in 37.6% biomass digestibility at the 48th hour of the enzymatic reaction which was roughly 12-fold higher than the digestibility of untreated samples. It was also concluded that GVL-H2O in the absence of an acid catalyst successfully deconstructed the cotton stalks at higher biomass loadings (15%) which hasn’t been yet shown in the literature. The digestibility increased from 37.6% to 39.3% at the 48th hour of the enzymatic hydrolysis of cotton stalks subjected to GVL-H2O pretreatment when biomass loading increased from 10% to 15%.
Keywords: gamma-valerolactone, ionic liquid, pretreatment, lignocellulosic biomass, enzymatic hydrolysis
Download full text

Back to the contents of the volume
By using this site you agree to our Privacy Policy and Terms of Use. We use cookies, including for analytics, personalisation, and ads.