Abstract：
BACKGROUND:Solid-state anaerobic digestion (SS-AD) has been increasingly used for lignocellulosic biomass treatment. However, the separate reactor required for pretreatment prior digestion, poor treatment capacity, and process stability inhibit further development of the SS-AD. In this study, a novel method called SS-AD with simultaneous urea treatment and soil addition was proposed. The process performance of methane yield from rape straw was investigated by adopting the method. RESULTS:The results show that the process performance of methane yield from rape straw using the method was better. The level of daily methane yield and the process stability were improved. The time required for reaching steady state was 6 days shorter than that of the common method (SS-AD and urea pretreatment), and the methane content in a stable-state level was 77.5-80.1 %. The total methane yield [409.6 L/kg volatile solids (VS)] was the maximal after using the method, which was 22.6 and 76.8 % higher than those of SS-AD with urea pretreatment and SS-AD with simultaneous urea treatment, respectively. In addition, the carbon dioxide content was reduced significantly. Degradation of feedstock was high; the highest reductions of VS, cellulose, and hemicellulose were 57.1, 61.4, and 65.8 %, respectively, which were in accordance with the maximal methane yield. SEM images also indicate that the biodegradation degree of rape straw in SS-AD was in line with methane yield. CONCLUSIONS:The process performance of SS-AD of lignocellulosic biomass (rape straw) with simultaneous urea treatment and soil addition was better. This simplified, low cost, and efficient method has good practicability, which can try to be used for other types of lignocellulosic biomass.
journal_name
Biotechnol Biofuelsjournal_title
Biotechnology for biofuelsauthors
Yao Y,Chen Sdoi
10.1186/s13068-016-0530-1subject
Has Abstractpub_date
2016-06-01 00:00:00pages
115issn
1754-6834pii
530journal_volume
9pub_type
杂志文章abstract：:Biorefineries, designed for the production of lignocellulose-based chemicals and fuels, are receiving increasing attention from the public, governments, and industries. A major obstacle for biorefineries to advance to commercial scale is the high cost of the enzymes required to derive the fermentable sugars from the f...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章,评审
doi：10.1186/s13068-019-1571-z
更新日期：2019-10-08 00:00:00
abstract：Background:Beer is the most popular alcoholic beverage worldwide. In the manufacture of beer, various by-products and residues are generated, and the most abundant (85% of total by-products) are spent grains. Thanks to its high (hemi)cellulose content (about 50% w/w dry weight), this secondary raw material is attractiv...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-019-1383-1
更新日期：2019-03-05 00:00:00
abstract：BACKGROUND:The recalcitrance of lignocellulosic biomass is a major limitation for its conversion into biofuels by enzymatic hydrolysis. The use of a pretreatment technology is an essential step to diminish biomass recalcitrance for bioethanol production. In this study, a two-step pretreatment using hydrothermal pretrea...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-014-0116-8
更新日期：2014-08-20 00:00:00
abstract：Background:Astaxanthin is a natural carotenoid pigment with tremendous antioxidant activity and great commercial value. Microbial production of astaxanthin via metabolic engineering has become a promising alternative. Although great efforts have been conducted by tuning the heterologous modules and precursor pools, the...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-018-1227-4
更新日期：2018-08-23 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：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:Icariside D2 is a plant-derived natural glycoside with pharmacological activities of inhibiting angiotensin-converting enzyme and killing leukemia cancer cells. Production of icariside D2 by plant extraction and chemical synthesis is inefficient and environmentally unfriendly. Microbial cell factory offers a...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-019-1601-x
更新日期：2019-11-06 00:00:00
abstract：BACKGROUND:Cyanobacteria are an attractive candidate for the production of biofuel because of their ability to capture carbon dioxide by photosynthesis and grow on non-arable land. However, because huge quantities of water are required for cultivation, strict water management is one of the greatest issues in algae- and...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-7-56
更新日期：2014-04-09 00:00:00
abstract：Background:Cellulolytic enzymes produced by Trichoderma reesei are widely used for the industrial production of biofuels and chemicals from lignocellulose. We speculated that intracellular pH during the fermentation process can affect cellulase induction. Results:In this study, two H+-ATPase genes, tre76238 and tre787...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-019-1536-2
更新日期：2019-08-13 00:00:00
abstract：BACKGROUND:Alcohol-to-jet (ATJ) is one of the technical feasible biofuel technologies. It produces jet fuel from sugary, starchy, and lignocellulosic biomass, such as sugarcane, corn grain, and switchgrass, via fermentation of sugars to ethanol or other alcohols. This study assesses the ATJ biofuel production pathway f...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-017-0702-7
更新日期：2017-01-19 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:The microbial bioemulsifiers was surface active compounds, are more effective in stabilizing oil-in-water emulsions. The yeasts have been isolated to produce bioemulsifiers from vegetable oils and industrial wastes. RESULTS:Trichosporon mycotoxinivorans CLA2 is bioemulsifier-producing yeast strain isolated ...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-5-29
更新日期：2012-05-06 00:00:00
abstract：UNLABELLED: BACKGROUND:The recalcitrance of lignocellulosic cell wall biomass to deconstruction varies greatly in angiosperms, yet the source of this variation remains unclear. Here, in eight genotypes of short rotation coppice willow (Salix sp.) variability of the reaction wood (RW) response and the impact of this va...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-5-83
更新日期：2012-11-22 00:00:00
abstract：BACKGROUND:β-Glucosidase is an important component of the cellulase enzyme system. It does not only participate in cellulose degradation, it also plays an important role in hydrolyzing cellulose to fermentable glucose by relieving the inhibition of exoglucanase and endoglucanase from cellobiose. Therefore, the glucose-...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-5-31
更新日期：2012-07-11 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: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:Integration of second-generation (2G) bioethanol production with existing first-generation (1G) production may facilitate commercial production of ethanol from cellulosic material. Since 2G hydrolysates have a low sugar concentration and 1G streams often have to be diluted prior to fermentation, mixing of st...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-6-169
更新日期：2013-11-29 00:00:00
abstract：BACKGROUND:There has been a great deal of interest in fuel productions from lignocellulosic biomass to minimize the conflict between food and fuel use. The bioconversion of xylose, which is the second most abundant sugar present after glucose in lignocellulosic biomass, is important for the development of cost effectiv...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-6-134
更新日期：2013-09-16 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:Production of valuable metabolites by Yarrowia lipolytica using renewable raw materials is of major interest for sustainable food and energy. Galactose is a monosaccharide found in galactomannans, hemicelluloses, gums, and pectins. RESULTS:Yarrowia lipolytica was found to express all the Leloir pathway gene...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-015-0370-4
更新日期：2015-11-25 00:00:00
abstract：Background:Cyanobacteria have shown promising potential for the production of various biofuels and chemical feedstocks. Synechococcus elongatus UTEX 2973 is a fast-growing strain with pronounced tolerance to high temperatures and illumination. Hence, this strain appears to be ideal for the development of photosynthetic...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-018-1215-8
更新日期：2018-08-04 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：BACKGROUND:Bioethanol can be produced from sugar-rich, starch-rich (first generation; 1G) or lignocellulosic (second generation; 2G) raw materials. Integration of 2G ethanol with 1G could facilitate the introduction of the 2G technology. The capital cost per ton of fuel produced would be diminished and better utilizati...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-3-16
更新日期：2010-07-02 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：Background:In the enzymatic conversion of biomass, it becomes an important issue to efficiently and cost-effectively degrade cellulose into fermentable glucose. β-Glucosidase (Bgluc), an essential member of cellulases, plays a critical role in cellulosic biomass degradation. The difficulty in improving the stability of...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-019-1497-5
更新日期：2019-06-24 00:00:00
abstract：BACKGROUND:The 'attached cultivation' technique for microalgae production, combining the immobilized biofilm technology with proper light dilution strategies, has shown improved biomass production and photosynthetic efficiency over conventional open-pond suspended cultures. However, how light is transferred and distrib...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-015-0240-0
更新日期：2015-03-26 00:00:00
abstract：Background:Microalgae, due to its well-recognized advantages have gained renewed interest as potentially good feedstock for biodiesel. Production of fatty acid methyl esters (FAMEs) as a type of biodiesel was carried out from Chlorella vulgaris bio-oil. Biodiesel was produced in the presence of nano-biocatalysts compos...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-020-01688-x
更新日期：2020-03-20 00:00:00
abstract：: A range of lignocellulosic feedstocks (including agricultural, softwood and hardwood substrates) were pretreated with either sulfur dioxide-catalyzed steam or an ethanol organosolv procedure to try to establish a reliable assessment of the factors governing the minimum protein loading that could be used to achieve ef...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-4-3
更新日期：2011-02-10 00:00:00
abstract：BACKGROUND:A substantial barrier to commercialization of lignocellulosic ethanol production is a lack of process specific sensors and associated control strategies that are essential for economic viability. Current sensors and analytical techniques require lengthy offline analysis or are easily fouled in situ. Raman sp...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-6-28
更新日期：2013-02-20 00:00:00
abstract：Background:Propionic acid (PA), a key platform chemical produced as a by-product during petroleum refining, has been widely used as a food preservative and an important chemical intermediate in many industries. Microbial PA production through engineering yeast as a cell factory is a potentially sustainable alternative ...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-019-1427-6
更新日期：2019-04-23 00:00:00
