Overcoming factors limiting high-solids fermentation of lignocellulosic biomass to ethanol
نویسندگان
چکیده
منابع مشابه
Overcoming factors limiting high-solids fermentation of lignocellulosic biomass to ethanol.
Simultaneous saccharification and fermentation (SSF) of solid biomass can reduce the complexity and improve the economics of lignocellulosic ethanol production by consolidating process steps and reducing end-product inhibition of enzymes compared with separate hydrolysis and fermentation (SHF). However, a long-standing limitation of SSF has been too low ethanol yields at the high-solids loading...
متن کاملOptimization of simultaneous saccharification and fermentation for the production of ethanol from lignocellulosic biomass.
Simultaneous saccharification and fermentation (SSF) of alkaline hydrogen peroxide pretreated Antigonum leptopus (Linn) leaves to ethanol was optimized using cellulase from Trichoderma reesei QM-9414 (Celluclast from Novo) and Saccharomyces cerevisiae NRRL-Y-132 cells. Response surface methodology (RSM) and a three-level four-variable design were employed to evaluate the effects of SSF process ...
متن کاملUltrasonically Assisted Conversion of Lignocellulosic Biomass to Ethanol
In order to improve the bioconversion of lignocellulosic materials in an environmentally friendly manner, we choose to use the ultrasonic energy. Since enzymatic hydrolysis of cellulose represents a significant part of production costs, it is economically advantageous to develop a technique for reducing the cellulolitic enzyme loading. Thus, the sonication was employed in a two steps concept pr...
متن کاملA modified method for calculating practical ethanol yield at high lignocellulosic solids content and high ethanol titer.
A modified method for calculating practical ethanol yield in the simultaneous saccharification and fermentation (SSF) at high lignocellulosic solids content and high ethanol titer is proposed considering the liquid volume change caused by high titer ethanol generation and the water consumed during cellulose degradation. This modified method was applied to determine the practical ethanol yields ...
متن کاملLaboratory-scale method for enzymatic saccharification of lignocellulosic biomass at high-solids loadings
BACKGROUND Screening new lignocellulosic biomass pretreatments and advanced enzyme systems at process relevant conditions is a key factor in the development of economically viable lignocellulosic ethanol. Shake flasks, the reaction vessel commonly used for screening enzymatic saccharifications of cellulosic biomass, do not provide adequate mixing at high-solids concentrations when shaking is no...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2017
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.1704652114