Abstract：
BACKGROUND:When producing biofuels from dedicated feedstock, agronomic factors such as harvest time and location can impact the downstream production. Thus, this paper studies the effectiveness of ammonia fibre expansion (AFEX) pretreatment on two harvest times (July and October) and ecotypes/locations (Cave-in-Rock (CIR) harvested in Michigan and Alamo harvested in Alabama) for switchgrass (Panicum virgatum). RESULTS:Both harvest date and ecotype/location determine the pretreatment conditions that produce maximum sugar yields. There was a high degree of correlation between glucose and xylose released regardless of the harvest, pretreatment conditions, or enzyme formulation. Enzyme formulation that produced maximum sugar yields was the same across all harvests except for the CIR October harvest. The least mature sample, the July harvest of CIR switchgrass, released the most sugars (520 g/kg biomass) during enzymatic hydrolysis while requiring the least severe pretreatment conditions. In contrast, the most mature harvest released the least amount of sugars (410 g/kg biomass). All hydrolysates were highly fermentable, although xylose utilisation in the July CIR hydrolysate was poor. CONCLUSIONS:Each harvest type and location responded differently to AFEX pretreatment, although all harvests successfully produced fermentable sugars. Thus, it is necessary to consider an integrated approach between agricultural production and biochemical processing in order to insure optimal productivity.
journal_name
Biotechnol Biofuelsjournal_title
Biotechnology for biofuelsauthors
Bals B,Rogers C,Jin M,Balan V,Dale Bdoi
10.1186/1754-6834-3-1subject
Has Abstractpub_date
2010-01-04 00:00:00pages
1issue
1issn
1754-6834pii
1754-6834-3-1journal_volume
3pub_type
杂志文章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:Due to its capacity to produce large amounts of cellulases, Trichoderma reesei is increasingly been researched in various fields of white biotechnology, especially in biofuel production from lignocellulosic biomass. The commercial enzyme mixtures produced at industrial scales are not well characterized, and ...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-1-18
更新日期：2008-12-23 00:00:00
abstract：BACKGROUND:Hydrolysates of plant biomass used for the production of lignocellulosic biofuels typically contain sugar mixtures consisting mainly of D-glucose and D-xylose, and minor amounts of L-arabinose. The yeast Saccharomyces cerevisiae is the preferred microorganism for the fermentative production of ethanol but is...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-4-38
更新日期：2011-10-12 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：UNLABELLED: BACKGROUND:Acetoin is an important bio-based platform chemical. However, it is usually existed as a minor byproduct of 2,3-butanediol fermentation in bacteria. RESULTS:The present study reports introducing an exogenous NAD+ regeneration sysytem into a 2,3-butanediol producing strain Klebsiella pneumoniae ...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-6-7
更新日期：2013-01-25 00:00:00
abstract：:Microalgae hold great promises as sustainable cellular factories for the production of alternative fuels, feeds, and biopharmaceuticals for human health. While the biorefinery approach for fuels along with the coproduction of high-value compounds with industrial, therapeutic, or nutraceutical applications have the pot...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章,评审
doi：10.1186/s13068-019-1635-0
更新日期：2019-12-23 00:00:00
abstract：BACKGROUND:Environmental crisis and concerns for energy security have made the research for renewable fuels that will substitute the usage of fossil fuels an important priority. Biodiesel is a potential substitute for petroleum, but its feasibility is hindered by the utilization of edible vegetable oil as raw material,...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-014-0190-y
更新日期：2015-01-22 00:00:00
abstract：Background:Cyanobacteria, a group of photosynthetic prokaryotes, are being increasingly explored for direct conversion of carbon dioxide to useful chemicals. However, efforts to engineer these photoautotrophs have resulted in low product titers. This may be ascribed to the bottlenecks in metabolic pathways, which need ...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-020-01727-7
更新日期：2020-05-18 00:00:00
abstract：Background:Toxic compounds present in both the hydrolysate and pyrolysate of lignocellulosic biomass severely hinder the further conversion of lignocellulose-derived fermentable sugars into useful chemicals by common biocatalysts like Zymomonas mobilis, which has remarkable advantages over yeast. Although the extra det...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-018-1287-5
更新日期：2018-10-16 00:00:00
abstract：BACKGROUND:The microbial community in anaerobic digestion is mainly monitored by means of DNA-based methods. This may lead to incorrect interpretation of the community parameters, because microbial abundance does not necessarily reflect activity. In this research, the difference between microbial community response on ...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-016-0652-5
更新日期：2016-11-09 00:00:00
abstract：Background:S-Adenosylmethionine (SAM) is a critical cofactor involved in many biochemical reactions. However, the low fermentation titer of SAM in methionine-free medium hampers commercial-scale production. The SAM synthesis pathway is specially related to the tricarboxylic acid (TCA) cycle in Bacillus amyloliquefacien...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-019-1554-0
更新日期：2019-09-09 00:00:00
abstract：BACKGROUND:Simultaneous saccharification and fermentation (SSF) is a promising process for bioconversion of lignocellulosic biomass. High glucan loading for hydrolysis and fermentation is an efficient approach to reduce the capital costs for bio-based products production. The SSF of steam-exploded corn stover (SECS) fo...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-014-0167-x
更新日期：2014-12-04 00:00:00
abstract：Background:Xylan is a major hemicellulosic component in the cell walls of higher plants especially in the secondary walls of vascular cells which are playing important roles in physiological processes and overall mechanical strength. Being the second most abundant cell wall polymer after cellulose, xylan is an abundant...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-017-0935-5
更新日期：2017-11-30 00:00:00
abstract：Background:The need for liquid fuels in the transportation sector is increasing, and it is essential to develop industrially sustainable processes that simultaneously address the tri-fold sustainability metrics of technological feasibility, economic viability, and environmental impacts. Biorefineries based on lignocell...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-017-0959-x
更新日期：2017-11-14 00:00:00
abstract：BACKGROUND:The search for novel thermostable xylanases for industrial use has intensified in recent years, and thermophilic fungi are a promising source of useful enzymes. The present work reports the heterologous expression and biochemical characterization of a novel thermostable xylanase (GH10) from the thermophilic ...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-7-115
更新日期：2014-07-29 00:00:00
abstract：:Lignin is the most abundant aromatic substrate on Earth and its valorization technologies are still under developed. Depolymerization and fragmentation are the predominant preparatory strategies for valorization of lignin to chemicals and fuels. However, due to the structural heterogeneity of lignin, depolymerization ...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章,评审
doi：10.1186/s13068-019-1376-0
更新日期：2019-02-15 00:00:00
abstract：UNLABELLED: BACKGROUND:The impact of hydrothermal flowthrough (FT) pretreatment severity on pretreatment and solubilization performance metrics was evaluated for three milled feedstocks (corn stover, bagasse, and poplar) and two conversion systems (simultaneous saccharification and fermentation using yeast and fungal ...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-5-49
更新日期：2012-07-19 00:00:00
abstract：BACKGROUND:Microbial synthesis of oleochemicals derived from native fatty acid (FA) metabolism has presented significant advances in recent years. Even so, native FA biosynthetic pathways often provide a narrow variety of usually linear hydrocarbons, thus yielding end products with limited structural diversity. To over...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-016-0631-x
更新日期：2016-10-14 00:00:00
abstract：BACKGROUND:A key barrier that limits the full potential of biological processes to create new, sustainable materials and fuels from plant fibre is limited enzyme accessibility to polysaccharides and lignin that characterize lignocellulose networks. Moreover, the heterogeneity of lignocellulosic substrates means that di...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-014-0176-9
更新日期：2014-12-31 00:00:00
abstract：BACKGROUND:There are many different types of pretreatment carried out to prepare cellulosic substrates for fermentation. In this study, one- and two-stage hydrothermal pretreatment were carried out to determine their effects on subsequent fermentations. The two substrates were found to behave differently during ferment...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-016-0446-9
更新日期：2016-02-03 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: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:Acid hydrolysis is a popular pretreatment for removing hemicellulose from lignocelluloses in order to produce a digestible substrate for enzymatic saccharification. In this work, a novel model for the dilute acid hydrolysis of hemicellulose within sugarcane bagasse is presented and calibrated against experim...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-015-0211-5
更新日期：2015-02-19 00:00:00
abstract：Background:With the further development of anaerobic digestion, an increasing output of anaerobically digested wastewater (ADW), which typically contained high concentrations of ammonium, phosphate, and suspended solids, was inevitable. Microalgae cultivation offered a potential waste-to-value strategy to reduce the hi...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-018-1190-0
更新日期：2018-07-09 00:00:00
abstract：Background:Plant seed oil is an important bioresource for human food and animal feed, as well as industrial bioproducts. Therefore, increasing oil content in seeds has been one of the primary targets in the breeding programs of oilseed crops. Thraustochytrium is a marine protist that can produce a high level of very lo...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-019-1514-8
更新日期：2019-06-29 00:00:00
abstract：Background:Countercurrent saccharification is a promising way to minimize enzyme loading while obtaining high conversions and product concentrations. However, in countercurrent saccharification experiments, 3-4 months are usually required to acquire a single steady-state data point. To save labor and time, simulation o...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-019-1517-5
更新日期：2019-07-11 00:00:00
abstract：BACKGROUND:Lignocellulosic biomass is an abundant and inexpensive resource for biofuel production. Alongside its biotechnological conversion, pretreatment is essential to enable efficient enzymatic hydrolysis by making cellulose susceptible to cellulases. Wet oxidation of biomass, such as acetone/water oxidation, that ...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-017-0737-9
更新日期：2017-02-28 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:Microalgae are attracting much attention as a promising feedstock for renewable energy production, while simultaneously providing environmental benefits. So far, comparison studies for microalgae selection for this purpose were mainly based on data obtained from batch cultures, where the lipid content and th...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-019-1461-4
更新日期：2019-05-11 00:00:00
abstract：Background:Understanding the DNA methylome and its relationship with non-coding RNAs, including microRNAs (miRNAs) and long non-coding RNAs (lncRNAs), is essential for elucidating the molecular mechanisms underlying key biological processes in plants. Few studies have examined the functional roles of the DNA methylome ...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-018-1202-0
更新日期：2018-07-24 00:00:00
