Abstract：
:The production and properties of a biosurfactant, synthesized by Bacillus subtilis LB5a strain, using cassava wastewater as substrate were investigated. The microorganism was able to grow and to produce surfactant on cassava waste, reducing the surface tension of medium to 26.6 mN/m and giving a crude surfactant concentration of 3.0 g/L after 48 h. The surface-active compound retained its properties during exposure to elevate temperatures (100 degrees C), high salinity (20% NaCl) and a wide range of pH values. The surfactant was capable of forming stable emulsions with various hydrocarbons. Preliminary chemical characterization revealed that the surfactant has a lipopeptide composition with a CMC value of about 33 mg/L. Cassava wastewater proved to be a suitable substrate for biosurfactant biosynthesis, providing not only bacterial growth and product accumulation but also a surfactant that has interesting and useful properties with potential for many industrial applications.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Nitschke M,Pastore GMdoi
10.1016/j.biortech.2005.02.044subject
Has Abstractpub_date
2006-01-01 00:00:00pages
336-41issue
2eissn
0960-8524issn
1873-2976pii
S0960-8524(05)00129-Xjournal_volume
97pub_type
杂志文章abstract：:Herein, the design of nanocomposite (NC) formulations that consist of metal enzyme cofactors, highly conductive carbon materials, DIET activators, to boost AD biogas production from anaerobically incubated cattle manure are investigated and discussed. Three different NC formulations were designed and synthesized: zinc...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.123350
更新日期：2020-08-01 00:00:00
abstract：:To address the bottlenecks of laccase-based catalysis, i.e., poor long-term stability and potential secondary pollution caused by synthetic mediator, we fabricated a new biocatalyst (N-PS-Lac) through adsorption of laccase onto polystyrene anion exchangers (N-PS) binding quaternary ammonium groups. After 2-year storag...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.04.105
更新日期：2014-07-01 00:00:00
abstract：:Treatment of landfill leachate was conducted in a lab-scale sequencing batch reactor (SBR). The SBR was started through inoculating activated sludge with controlling dissolved oxygen of 0.5-1.0 mg/L. Anammox reaction took place within around three months. The SBR established robust nitrogen removal with incremental NL...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.123959
更新日期：2020-11-01 00:00:00
abstract：:The catalytic (homogeneous) hydrogenation of biodiesel's polyunsaturated fatty acid methyl esters (FAME), synthesized by transesterification of vegetable (cotton seed) oil, selectively to monounsaturated FAME, could upgrade the final quality of biodiesel. The final fuel can be optimized to have a higher cetane number ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2009.10.016
更新日期：2010-03-01 00:00:00
abstract：:Anaerobic batch tests were performed to investigate the methane production enhancement and solid transformation rates from food waste (FW) by high voltage pulse discharge (HVPD) pretreatment. The total cumulative methane production with HVPD pretreatment was 134% higher than that of the control. The final volatile sol...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2016.09.104
更新日期：2016-12-01 00:00:00
abstract：:Composting is considered to be a natural, sustainable, and highly beneficial method for solid waste disposal. The objective of this study was to investigate the two-stage composting of green waste (GW) as affected by the addition of sugar beet pulp (SBP; at 0, 25, and 35%) and/or paper waste (PW; at 0, 5, and 10%) as ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.07.040
更新日期：2018-11-01 00:00:00
abstract：:An effective two-stage sewage sludge digestion process, consisting of thermophilic aerobic digestion (TAD) followed by mesophilic anaerobic digestion (MAD), was developed for efficient sludge reduction and methane production. Using TAD as a biological pretreatment, the total volatile suspended solid reduction (VSSR) a...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2013.01.094
更新日期：2013-10-01 00:00:00
abstract：:Over the last decade, there has been an ever-growing interest in bioelectrochemical systems (BES) as a sustainable technology enabling simultaneous wastewater treatment and biological production of, e.g. electricity, hydrogen, and further commodities. A key component of any BES degrading organic matter is the anode wh...
journal_title：Bioresource technology
pub_type： 杂志文章,评审
doi：10.1016/j.biortech.2018.01.090
更新日期：2018-06-01 00:00:00
abstract：:A new-developed vegetation-activated sludge process (V-ASP) was implemented for decentralized domestic wastewater treatment, and studied in lab-scale and full-scale. The main purpose of this work was the investigation of biomass activities and microbial communities in V-ASP by comparison with conventional constructed ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2016.08.095
更新日期：2016-11-01 00:00:00
abstract：:During the last 30 years the scope of biocatalysis has been expanding due to the advances in several technological fields. Diverse techniques as structural enzyme improvement (e.g. protein engineering, direct evolution), engineering approaches (e.g. ionic liquids, supercritical fluids) and physical stabilization (e.g....
journal_title：Bioresource technology
pub_type： 杂志文章,评审
doi：10.1016/j.biortech.2011.12.050
更新日期：2012-07-01 00:00:00
abstract：:The combination of autohydrolysis and ionic liquid microwave treatments of eucalyptus wood have been studied to facilitate sugar production in a subsequent enzymatic hydrolysis step. Three autohydrolysis conditions (150 °C, 175 °C and 200 °C) in combination with two ionic liquid temperatures (80 °C and 120 °C) were co...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.12.034
更新日期：2018-03-01 00:00:00
abstract：:Reducing moisture in sewage sludge is one of the main goals of sewage sludge composting and biodrying. A mathematical model was used to simulate the performance of water removal under different aeration strategies. Additionally, the correlations between temperature, moisture content (MC), volatile solids (VS), oxygen ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.07.006
更新日期：2014-11-01 00:00:00
abstract：:Anaerobic co-digestion of tomato residues, dairy manure, and corn stover at ratios of 20:48:32, 40:36:24, and 60:24:16 (volatile solid basis) were compared for liquid anaerobic digestion (L-AD), hemi-solid state AD (HSS-AD), and solid state AD (SS-AD) systems. The highest methane yield (353.5 L/kg-VSadded) and volumet...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.08.061
更新日期：2018-12-01 00:00:00
abstract：:This study aimed to use different conditions of magnetic field (MF) application during Chlorella fusca cultivation and evaluate CO2 biofixation by the microalga through growth kinetics in addition to the biomass composition. For this purpose, we tested different MF intensities applied for 1 h d-1 and for 24 h. Culture...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.12.080
更新日期：2019-03-01 00:00:00
abstract：:The possibility of introducing the thermo-alkali hydrolysis of Waste-Activated Sludge (WAS) was investigated, in order to enable the use of its solid residue as a raw material in cardboard production and the use of its liquid portion for anaerobic digestion in an UASB reactor. The evaluation of the hydrolysis at pH>12...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2013.10.041
更新日期：2014-01-01 00:00:00
abstract：:Though dam-related biomethane was identified in the 1960s, its capture has not been sufficiently discussed. Captured biomethane could be burned to produce energy, and the burning of biomethane turns the carbon in it into CO(2) that is far less potent as a greenhouse gas; this paper therefore aims to technically discus...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2007.10.030
更新日期：2008-09-01 00:00:00
abstract：:Cellulosic plant material represents an as-of-yet untapped source of fermentable sugars for significant industrial use. Many physio-chemical structural and compositional factors hinder the enzymatic digestibility of cellulose present in lignocellulosic biomass. The goal of any pretreatment technology is to alter or re...
journal_title：Bioresource technology
pub_type： 杂志文章,评审
doi：10.1016/j.biortech.2004.06.025
更新日期：2005-04-01 00:00:00
abstract：:The objective of this study was to determine the specific energy requirements for the compression of fractionated sun-cured and dehydrated alfalfa chops, when subjected to different pressures and holding times. The compression behavior of fractionated sun-cured and dehydrated alfalfa chops was studied using a single c...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2005.11.032
更新日期：2007-01-01 00:00:00
abstract：:Metal concentrations were measured in plants growing on heavily contaminated tailings from a mine active since about 1800 in San Luis Potosí (Mexico). Viguiera dentata (Cav.) Spreng., Parthenium bipinnatifidum (Ort.) Rollins, Flaveria angustifolia (Cav.) Pers., F. trinervia (Spreng.) C. Mohr. and Sporobolusindicus (L....
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.01.013
更新日期：2010-06-01 00:00:00
abstract：:Submerged cultures were used to identify growth-limiting nutrients by Antrodia cinnamomea strains. The mycelial biomass and EPS production by A. cinnamomea BCRC 35396 were markedly higher than other A. cinnamomea strains. A relatively high C/N ratio was favorable for both the mycelial growth (5.41 g/l) and EPS product...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2006.09.008
更新日期：2007-09-01 00:00:00
abstract：:The effects of light intensity (0-225 µmol m-2 s-1) on oxygen distribution, lipid production and biological community structure of algal-bacterial granules were investigated in six identical photo-sequencing batch reactors (with a dark/light cycle of 12 h/12 h). Typically green algal-bacterial granules could be develo...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.10.059
更新日期：2019-01-01 00:00:00
abstract：:The biosorption of Hg(2+) by two strains of cyanobacteria, Spirulina platensis and Aphanothece flocculosa, was studied under a batch stirred reaction system. Essential process parameters, including pH, biomass concentration, initial metal concentration, and presence of co-ions were shown to influence the Hg(2+) uptake...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2007.11.034
更新日期：2008-09-01 00:00:00
abstract：:The performance of a microbial fuel cell (MFC) to degrade oxyfluorfen was investigated. Approximately 77% of 50 mg/L oxyfluorfen was degraded within 24 h by anodic biofilm. The temperature, pH, and initial oxyfluorfen concentration had a significant effect on oxyfluorfen degrading, and a maximum degradation rate of 94...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.11.091
更新日期：2018-02-01 00:00:00
abstract：:The aim of the study was to assess the effect of pasteurisation, as set by the European regulation EC 1774/2002, on selected pathogens and indicator organisms. Unpasteurised substrate (biowaste), including animal by-products from a full-scale biogas plant was heat treated under laboratory conditions at 70 degrees C an...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2007.09.071
更新日期：2008-11-01 00:00:00
abstract：:Escherichia coli KJ122 was engineered to produce succinate from glucose using the wild type GalP for glucose uptake instead of the native phosphotransferase system (ptsI mutation). This strain now ferments 10% xylose poorly. Mutants were selected by serial transfers in AM1 mineral salts medium with 10% xylose. Clones ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.06.108
更新日期：2015-10-01 00:00:00
abstract：:This review highlights the importance of conducting biological stability evaluation due to water reuse progression. Specifically, assimilable organic carbon (AOC) has been identified as a practical indicator for microbial occurrence and regrowth which ultimately influence biological stability. Newly modified AOC bioas...
journal_title：Bioresource technology
pub_type： 杂志文章,评审
doi：10.1016/j.biortech.2018.01.111
更新日期：2018-04-01 00:00:00
abstract：:Xanthan integrated graphene oxide functionalized by titanium dioxide was successfully prepared through facile, eco-friendly and cost effective ice-templating technique. The three-dimensional (3D) graphene composite demonstrated relatively high temperature stability, chemical functionalities and porous sponge-like stru...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.123296
更新日期：2020-08-01 00:00:00
abstract：:In this work, a semi-continuous biological system was established to produce hydrogen and generate electricity by coupling the bioreactor to a fuel cell. Heat and acid pretreatments (at 35 and 55 degrees C) of a seed sludge used as inoculum were performed in order to increase hydrogen producers. Different initial gluc...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2009.07.033
更新日期：2009-12-01 00:00:00
abstract：:This review reports the use of zeolites in biological processes such as anaerobic digestion, nitrification, denitrification and composting, review that has not been proposed yet. It was found that aerobic processes (activated sludge, nitrification, Anammox) use zeolites as ion-exchanger and biomass carriers in order t...
journal_title：Bioresource technology
pub_type： 杂志文章,评审
doi：10.1016/j.biortech.2020.122808
更新日期：2020-04-01 00:00:00
abstract：:Biocathodes polarized at high potential are promising for enhancing Microbial Fuel Cell performances but the microbes and genes involved remain poorly documented. Here, two sets of five oxygen-reducing biocathodes were formed at two potentials (-0.4V and +0.1V vs. saturated calomel electrode) and analyzed combining el...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2016.04.087
更新日期：2016-08-01 00:00:00
