Abstract：
UNLABELLED: BACKGROUND:In the present study, three ionic liquids, namely 1-butyl-3-methylimidazolium chloride ([BMIM]Cl), 1-ethyl-3-methylimidazolium acetate ([EMIM]OAc), and 1-ethyl-3-methylimidazolium diethyl phosphate ([EMIM]DEP), were used to partially dissolve rice husk, after which the cellulose were regenerated by the addition of water. The aim of the investigation is to examine the implications of the ionic liquid pretreatments on rice husk composition and structure. RESULTS:From the attenuated total reflectance Fourier transform-infrared (ATR FT-IR) spectroscopy, X-ray diffraction (XRD) and scanning electron microscopy (SEM) results, the regenerated cellulose were more amorphous, less crystalline, and possessed higher structural disruption compared with untreated rice husk. The major component of regenerated cellulose from [BMIM]Cl and [EMIM]DEP pretreatments was cellulose-rich material, while cellulose regenerated from [EMIM]OAc was a matrix of cellulose and lignin. Cellulose regenerated from ionic pretreatments could be saccharified via enzymatic hydrolysis, and resulted in relatively high reducing sugars yields, whereas enzymatic hydrolysis of untreated rice husk did not yield reducing sugars. Rice husk residues generated from the ionic liquid pretreatments had similar chemical composition and amorphousity to that of untreated rice husk, but with varying extent of surface disruption and swelling. CONCLUSIONS:The structural architecture of the regenerated cellulose and rice husk residues showed that they could be used for subsequent fermentation or derivation of cellulosic compounds. Therefore, ionic liquid pretreatment is an alternative in the pretreatment of lignocellulosic biomass in addition to the conventional chemical pretreatments.
journal_name
Biotechnol Biofuelsjournal_title
Biotechnology for biofuelsauthors
Ang TN,Ngoh GC,Chua AS,Lee MGdoi
10.1186/1754-6834-5-67subject
Has Abstractpub_date
2012-09-07 00:00:00pages
67issue
1issn
1754-6834pii
1754-6834-5-67journal_volume
5pub_type
杂志文章abstract：BACKGROUND:Improvement in the performance of eukaryotic microalgae for biofuel and bioproduct production is largely dependent on characterization of metabolic mechanisms within the cell. The marine diatom Cyclotella cryptica, which was originally identified in the Aquatic Species Program, is a promising strain of micro...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-016-0670-3
更新日期：2016-11-25 00:00:00
abstract：BACKGROUND:Multidimensional solid-state nuclear magnetic resonance (ssNMR) spectroscopy has emerged as an indispensable technique for resolving polymer structure and intermolecular packing in primary and secondary plant cell walls. Isotope (13C) enrichment provides feasible sensitivity for measuring 2D/3D correlation s...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-020-01858-x
更新日期：2021-01-07 00:00:00
abstract：BACKGROUND:As a green alternative for the production of transportation fuels, the enzymatic hydrolysis of lignocellulose and subsequent fermentation to ethanol are being intensively researched. To be economically feasible, the hydrolysis of lignocellulose must be conducted at a high concentration of solids, which resul...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-6-104
更新日期：2013-07-24 00:00:00
abstract：BACKGROUND:Starch is the second most abundant plant-derived biomass and a major feedstock in non-food industrial applications and first generation biofuel production. In contrast to lignocellulose, detailed insight into fungal degradation of starch is currently lacking. This study explores the secretomes of Aspergillus...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-016-0604-0
更新日期：2016-09-01 00:00:00
abstract：BACKGROUND:Genomic and proteomic analysis are potent tools for metabolic characterization of microorganisms. Although cellulose usually triggers cellulase production in cellulolytic fungi, the secretion of the different enzymes involved in polymer conversion is subjected to different factors, depending on growth condit...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-017-0844-7
更新日期：2017-06-23 00:00:00
abstract：BACKGROUND:Crude glycerol in the waste stream of the biodiesel production process is an abundant and renewable resource. However, the glycerol-based industry is usually afflicted by the cost for refinement of crude glycerol. This issue can be addressed by developing a microbial process to convert crude glycerol to valu...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-017-0857-2
更新日期：2017-07-04 00:00:00
abstract：BACKGROUND:Simultaneous wastewater treatment and lipid production by oleaginous microalgae show great potential to alleviate energy shortage and environmental pollution, because they exhibit tremendous advantages over traditional activated sludge. Currently, most research on wastewater treatment by microalgal are carri...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-017-0797-x
更新日期：2017-05-02 00:00:00
abstract：Background:Methane, a main component of natural gas and biogas, has gained much attention as an abundant and low-cost carbon source. Methanotrophs, which can use methane as a sole carbon and energy source, are promising hosts to produce value-added chemicals from methane, but their metabolic engineering is still challe...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-019-1574-9
更新日期：2019-09-30 00:00:00
abstract：BACKGROUND:Production of biofuels from microalgae has been recognized to be a promising route for a sustainable energy supply. However, the microalgae harvesting process is a bottleneck for industrialization because it is energy intensive. Thus, by displaying interactive protein factors on the cell wall, oleaginous mic...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-015-0406-9
更新日期：2016-01-13 00:00:00
abstract：BACKGROUND:Glycoside hydrolases are important for various industrial and scientific applications. Determination of their temperature as well as pH optima and range is crucial to evaluate whether an enzyme is suitable for application in a biotechnological process. These basic characteristics of enzymes are generally det...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-017-0923-9
更新日期：2017-10-11 00:00:00
abstract：Background:Understanding the extracellular electron transport pathways in cyanobacteria is a major factor towards developing biophotovoltaics. Stressing cyanobacteria cells environmentally and then probing changes in physiology or metabolism following a significant change in electron transfer rates is a common approach...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-020-01788-8
更新日期：2020-08-26 00:00:00
abstract：BACKGROUND:Although numerous studies have used wastewater as substitutes to cultivate microalgae, most of them obtained weaker algal viability than standard media. Some studies demonstrated a promotion of phytohormones on algal growth in standard media. For exploiting a strategy to improve algal biomass accumulation in...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-017-0759-3
更新日期：2017-03-24 00:00:00
abstract：BACKGROUND:Wheat straw used for bioethanol production varies in enzymatic digestibility according to chemical structure and composition of cell walls and tissues. In this work, the two biologically different wheat straw organs, leaves and stems, are described together with the effects of hydrothermal pretreatment on ch...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-6-54
更新日期：2013-04-16 00:00:00
abstract：BACKGROUND:The lignocellulosic enzymes of Trichoderma species have received particular attention with regard to biomass conversion to biofuels, but the production cost of these enzymes remains a significant hurdle for their commercial application. In this study, we quantitatively compared the lignocellulolytic enzyme p...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-6-172
更新日期：2013-11-29 00:00:00
abstract：BACKGROUND:While microbial electrolysis cells (MECs) can simultaneously produce bioelectrochemical hydrogen and treat wastewater, they consume considerable energy to overcome the unfavorable thermodynamics, which is not sustainable and economically feasible in practical applications. This study presents a proof-of-conc...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-015-0305-0
更新日期：2015-08-14 00:00:00
abstract：BACKGROUND:Separating acidification and methanogenic steps in anaerobic digestion processes can help to optimize the process and contribute to producing valuable sub-products such as methane, hydrogen and organic acids. However, the full potential of this technology has not been fully explored yet. To assess the underl...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-017-0859-0
更新日期：2017-07-03 00:00:00
abstract：BACKGROUND:The conversion of biomass-derived sugars via enzymatic hydrolysis for biofuel production is a challenge. Therefore, the search for microorganisms and key enzymes that increase the efficiency of the saccharification of cellulosic substrates remains an important and high-priority area of study. Trichoderma har...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-016-0487-0
更新日期：2016-03-22 00:00:00
abstract：BACKGROUND:Volatile fatty acids (VFA) are building blocks for the chemical industry. Sustainable, biological production is constrained by production and recovery costs, including the need for intensive pH correction. Membrane electrolysis has been developed as an in situ extraction technology tailored to the direct rec...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-015-0396-7
更新日期：2015-12-21 00:00:00
abstract：BACKGROUND:Consolidated bioprocessing (CBP) of lignocellulosic biomass to hydrogen offers great potential for lower cost and higher efficiency compared to processes featuring dedicated cellulase production. Current studies on CBP-based hydrogen production mainly focus on using the thermophilic cellulolytic bacterium Cl...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-7-82
更新日期：2014-06-03 00:00:00
abstract：BACKGROUND:Decomposition of biomass for biogas production can be practiced under wet and dry fermentation conditions. In contrast to the dry fermentation technology, wet fermentation is characterized by a high liquid content and a relatively low total solid content. In this study, the composition and functional potenti...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-014-0193-8
更新日期：2015-02-08 00:00:00
abstract：Background:Lignocellulosic biorefinery offers economical and sustainable production of fuels and chemicals. Saccharomyces cerevisiae, a promising industrial host for biorefinery, has been intensively developed to expand its product profile. However, the sequential and slow conversion of xylose into target products rema...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-019-1641-2
更新日期：2020-01-22 00:00:00
abstract：:[This corrects the article DOI: 10.1186/s13068-018-1097-9.]. ...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章,已发布勘误
doi：10.1186/s13068-018-1185-x
更新日期：2018-07-03 00:00:00
abstract：: The production of cellulosic ethanol from biomass is considered a promising alternative to reliance on diminishing supplies of fossil fuels, providing a sustainable option for fuels production in an environmentally compatible manner. The conversion of lignocellulosic biomass to biofuels through a biological route usu...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-6-15
更新日期：2013-01-28 00:00:00
abstract：Background:Microalgae are efficient producers of lipid-rich biomass, making them a key component in developing a sustainable energy source, and an alternative to fossil fuels. Chlorella species are of special interest because of their fast growth rate in photobioreactors. However, biological constraints still cast a si...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-019-1566-9
更新日期：2019-09-16 00:00:00
abstract：BACKGROUND:Succinic acid has great potential to be a new bio-based building block for deriving a number of value-added chemicals in industry. Bio-based succinic acid production from renewable biomass can provide a feasible approach to partially alleviate the dependence of global manufacturing on petroleum refinery. To ...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-020-01850-5
更新日期：2020-12-14 00:00:00
abstract：Background:Amelioration of biofuel feedstock of microalgae using sustainable means through synthetic ecology is a promising strategy. The co-cultivation model (Tetraselmis striata and Pelagibaca bermudensis) was evaluated for the robust biofuel production under varying stressors as well as with the selected two-stage c...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-018-1097-9
更新日期：2018-04-07 00:00:00
abstract：Background:Clostridium thermocellum is a promising microorganism for conversion of cellulosic biomass to biofuel, without added enzymes; however, the low ethanol titer produced by strains developed thus far is an obstacle to industrial application. Results:Here, we analyzed changes in the relative concentration of int...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-017-0961-3
更新日期：2017-11-30 00:00:00
abstract：BACKGROUND:One of the most promising technologies to sustainably produce energy and to mitigate greenhouse gas emissions from combustion of fossil energy carriers is the anaerobic digestion and biomethanation of organic raw material and waste towards biogas by highly diverse microbial consortia. In this context, the mi...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-016-0581-3
更新日期：2016-08-11 00:00:00
abstract：Background:Phototrophic purple non-sulfur bacteria (PNSB) have gained attention for their ability to produce a valuable clean energy source in the form biohydrogen via photofermentation of a wide variety of organic wastes. For maturation of these phototrophic bioprocesses towards commercial feasibility, development of ...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-020-01743-7
更新日期：2020-06-09 00:00:00
abstract：BACKGROUND:Thermochemical pretreatment of lignocellulose is crucial to bioconversion in the fields of biorefinery and biofuels. However, the enzyme inhibitors in pretreatment hydrolysate make solid substrate washing and hydrolysate detoxification indispensable prior to enzymatic hydrolysis. Sulfite pretreatment to over...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-6-156
更新日期：2013-11-05 00:00:00
