Abstract:
:The identification of the influence of the reaction parameters is of paramount importance when defining a process design. In this work, non-edible castor oil was reacted with methanol to produce a possible component for biodiesel blends, using liquid enzymes as the catalyst. Temperature, alcohol-to-oil molar ratio, enzyme and added water contents were the reaction parameters evaluated in the transesterification reactions. The optimal conditions, giving the optimal final FAME yield and FFA content in the methyl ester-phase was identified. At 35°C, 6.0 methanol-to-oil molar ratio, 5wt% of enzyme and 5wt% of water contents, 94% of FAME yield and 6.1% of FFA in the final composition were obtained. The investigation was completed with the analysis of the component profiles, showing that at least 8h are necessary to reach a satisfactory FAME yield together with a minor FFA content.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Andrade TA,Errico M,Christensen KVdoi
10.1016/j.biortech.2017.06.118subject
Has Abstractpub_date
2017-11-01 00:00:00pages
366-374eissn
0960-8524issn
1873-2976pii
S0960-8524(17)31022-2journal_volume
243pub_type
杂志文章abstract::Good start-up and performance are essential for the completely autotrophic nitrogen removal over nitrite (CANON) process, and inorganic carbon (IC) is also important for this process. In this study, a lab-scale submerged aerated biological filter (SABF) was adopted for the CANON process. A 16S rRNA gene high-throughpu...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2018.01.107
更新日期:2018-04-01 00:00:00
abstract::Hazelnut shell, as novel biomass, has lower ash content and abundant hydrocarbon, which can be utilized resourcefully with municipal sewage sludge (MSS) by co-pyrolyisis to decrease total content of pollution. The co-pyrolysis of MSS and hazelnut shell blend was analyzed by a method of multi-heating rates and differen...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2017.09.008
更新日期:2018-01-01 00:00:00
abstract::Combustion characteristics of biomass are very important to directly utilize as an energy resource. Bamboo was carbonized using a XD-1200N muffle furnace in the nitrogen environment and its combustion characteristics were investigated. Results showed that bamboo-biochars had better combustion characteristics compared ...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2014.05.023
更新日期:2014-09-01 00:00:00
abstract::Anaerobic digestion (AD) of FW shows instability due to both the presence of high lipids and accumulation of volatile fatty acids. In this study, AD of food waste (FW) was optimized by removing lipids (LRFW) and by co-digestion with sewage sludge (1:1w/w on dry matter). The results obtained showed that lipids extracti...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2017.08.087
更新日期:2017-11-01 00:00:00
abstract::Lack of knowledge about the microbial consortia involved in wastewater treatment at different operating temperatures, is a major reason for failure of anaerobic reactors in field applications. Present study was undertaken to correlate performance of hybrid anaerobic reactors operating at different temperatures (37, 45...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2012.05.047
更新日期:2012-08-01 00:00:00
abstract::In this study, three different marine biomasses, i.e., microalgae-spirulina, chlorella and macroalgae-porphyra, were pyrolyzed in a laboratory-scale multimode-microwave cavity at 400, 550 and 700°C. Ovalbumin and cellulose were also chosen as model compounds to simulate algae. The influence of heating rate on pyrolysi...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2017.02.006
更新日期:2017-08-01 00:00:00
abstract::Organosolv is a promising pretreatment for lignocellulose biorefinery on the integrated utilization of full components from lignocellulosic biomass. A highly efficient pretreatment process using methanol/dioxane binary solvent with microwave irradiation is proposed in this study. Poplar wood was fractionated to high q...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2019.122657
更新日期:2020-03-01 00:00:00
abstract::This paper evaluates five phenolic compounds as mediators for kenaf pulp biobleaching by laccase. The results have been compared with the treatment using a non-phenolic mediator, 1-hydroxybenzotriole and laccase alone. The influence of the nature of the chemical mediators used on various pulp properties is discussed. ...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2012.12.014
更新日期:2013-02-01 00:00:00
abstract::Manure from medicated livestock contains pharmaceutical antibiotics and antibiotic resistance genes (ARGs). Bioavailable antibiotics trigger further ARGs amplification during manure storage. It was tested whether biochar lowers the bioavailability of the antibiotics sulfamethazine (SMZ), ciprofloxacin (CIP), oxytetrac...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2020.123782
更新日期:2020-11-01 00:00:00
abstract::To develop high-efficient biofertilizer, an environmental stress-tolerant phosphate-solubilizing microorganism (PSM) was isolated from agricultural wastes compost, and then applied to spent mushroom substrate (SMS). The isolate FL7 was identified as Pichia farinose with resistance against multiple environmental stress...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2012.02.042
更新日期:2012-05-01 00:00:00
abstract::Pharmaceutical waste sludge harbors large amounts of antibiotic resistance genes (ARGs) and mobile genetic elements (MGEs), and it is necessary to study the reduction of ARGs and MGEs during sludge treatment. Therefore, the antibiotic resistance phenotypes and genotypes of enterococci, and the ARGs and MGEs in genomic...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2017.03.104
更新日期:2017-07-01 00:00:00
abstract::Substitution of conventional feedstock with waste based alternatives is one route towards both remediation and reducing costs associated with production of algal biomass. This work explores whether exhaust gases and wastewater can replace conventional feedstock in the production of biomass from Chlorella sorokiniana. ...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2013.10.040
更新日期:2014-01-01 00:00:00
abstract::The purpose of this study was to investigate the effect of different types of food wastes on the process efficiency and microbial community structures in full-scale anaerobic digesters and to identify parameters that affect these criteria. Six full-scale anaerobic digesters were investigated; three were operated under...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2017.08.167
更新日期:2017-12-01 00:00:00
abstract::Different culture conditions for Protaminobacter rubrum and enzymatic reaction parameters were evaluated with the goal of improving isomaltulose production. P. rubrum was grown in a medium with 1% (w/v) cane molasses and 0.5% yeast extract and achieved a maximum cell yield Y(x/s) of 0.295 g of cells/g sucrose and a sp...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2009.03.060
更新日期:2009-09-01 00:00:00
abstract::An optimisation protocol for maximising methane production by anaerobic co-digestion of several wastes was carried out. A linear programming method was utilised to set up different blends aimed at maximising the total substrate biodegradation potential (L CH(4)/kg substrate) or the biokinetic potential (L CH(4)/kg sub...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2009.09.061
更新日期:2010-02-01 00:00:00
abstract::Sodium acetate as carbon source, tolerance to organic loading rate (OLR) by aerobic granular sludge in a cyclic aerobic granular reactor (CAGR) was investigated by gradually increasing the influent COD. AGS could maintain stability in the continuous flow reactor under OLR⩽15kg/m(3)d in the former 65 days, and SVI, gra...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2015.02.029
更新日期:2015-04-01 00:00:00
abstract::Understanding of how anaerobic digestion (AD)-related microbiomes are constructed by operational parameters or their interactions within the biochemical process is limited. Using high-throughput sequencing and molecular ecological network analysis, this study shows the succession of AD-related microbiome hosting diver...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2018.04.083
更新日期:2018-08-01 00:00:00
abstract::Arthrospira (Spirulina) platensis is known to have high-quality proteins content and phycocyanin as one of the major pigment constituents of the cells, and the most challenging problem associated with phycocyanin production in Arthrospira is to optimize its intracellular accumulation. The present study evaluated the m...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2017.12.068
更新日期:2018-05-01 00:00:00
abstract::This study investigated the co-fermentation of molasses and sweetpotato vine hydrolysate (SVH) by Trichosporon fermentans. T. fermentans showed low lipid accumulation on pure molasses; however, its lipid content increased by 35% when 10% SVH was added. The strong influence of SVH on lipid production was further demons...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2014.11.045
更新日期:2015-01-01 00:00:00
abstract::DHA production by Schizochytrium sp. S31 was studied in batch cultures on glycerol with stepwise dissolved oxygen strategy. Three growth stages were identified as cell growth, lipid accumulation and lipid turnover. It was revealed that fatty acid (FA) shifts during the three growth stages involved the activity changes...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2013.05.030
更新日期:2013-08-01 00:00:00
abstract::In order to use sugarcane bagasse as a substrate for lactic acid production, optimum conditions for acid hydrolysis of the bagasse were investigated. After lignin extraction, the conditions were varied in terms of hydrochloric (HCl) or sulfuric (H(2)SO(4)) concentration (0.5-5%, v/v), reaction time (1-5h) and incubati...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2009.08.091
更新日期:2010-02-01 00:00:00
abstract::This study investigated a bench-scale anoxic-oxic activated sludge system for integrated removal of COD and nitrogen. The experimental unit includes four chambers and continuous feeding in first chamber without recycle of nitrified liquid from aerobic to anoxic chamber unlike the conventional anoxic-oxic process. Recy...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2014.03.108
更新日期:2014-06-01 00:00:00
abstract::The specific elimination of lignin derivatives from wood hydrolysate without sugar loss has great practical significance to biorefinery and bioenergy. In the present study, a process consisting of calcium hydroxide and anion exchange resin treatments was developed for the purpose of selective removal of lignin from wo...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2014.10.025
更新日期:2014-12-01 00:00:00
abstract::Aerated and rotated mode adsorption experiments were carried out for the removal of Congo red from aqueous solution using native and pre-treated mycelial pellets/biomass of Trametes versicolor. The effect of process parameters like contact time, dosage of adsorbent, adsorbate concentration and pH on adsorption was inv...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2007.02.022
更新日期:2008-03-01 00:00:00
abstract::The inclusion of a pretreatment step in anaerobic digestion processes increases the digestibility of lignocellulosic biomass and enhances biogas yields by promoting lignin removal and the destruction of complex biomass structures. The increase in surface area enables the efficient interaction of microbes or enzymes, a...
journal_title:Bioresource technology
pub_type: 杂志文章,评审
doi:10.1016/j.biortech.2019.122725
更新日期:2020-04-01 00:00:00
abstract::This article has been withdrawn at the request of the authors and editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy. ...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2014.02.040
更新日期:2014-02-21 00:00:00
abstract::Biosorption of cadmium (II) ions from aqueous solution onto immobilized cells of Pycnoporus sanguineus (P. sanguineus) was investigated in a batch system. Equilibrium and kinetic studies were conducted by considering the effect of pH, initial cadmium (II) concentration, biomass loading and temperature. Results showed ...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2007.09.062
更新日期:2008-07-01 00:00:00
abstract::Efficient nitrogen removal from domestic sewage was obtained in a sequencing batch biofilm reactor (SBBR) operated in alternate anaerobic/oxic/anoxic (A/O/A) mode. For the influent total nitrogen (TN) ranging from 30.0 to 63.3 mg N·L-1, the average nitrogen removal efficiency was 90.3 ± 2.9% with removal rate of 42.3-...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2019.121665
更新日期:2019-10-01 00:00:00
abstract::A comprehensive mechanistic model with state of the art understanding and assumptions is presented to simulate major processes in a photobioreactor for describing the algal-bacterial growth dynamics. The model includes a total of 37 state variables that broadly cover all the essential physiological and physico-chemica...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2017.09.093
更新日期:2018-01-01 00:00:00
abstract::The interest in microalgae for wastewater treatment and liquid bio-fuels production (i.e. biodiesel and bioethanol) is steadily increasing due to the energy demand of the ultra-modern technological world. The associated biomass and by-product residues generated from these processes can be utilized as a feedstock in an...
journal_title:Bioresource technology
pub_type: 杂志文章,评审
doi:10.1016/j.biortech.2017.05.156
更新日期:2017-10-01 00:00:00