Abstract:
:The present study relates to a nanotechnology enabled method in which purified laccase from Escherichia coli AKL2 was supplemented with 100 μM copper oxide nanoparticles (Cu(2)O) (NP-laccase). The activity, half life and stability of NP-laccase were enhanced by 4, 42 and 36-fold respectively at high temperature (80 °C) and also over a wide range of pH (4-12) than laccase (in the presence of 0.18 mM CuSO(4)). Thermodynamic analysis of the nanoparticle-induced enzyme stability revealed an enhanced entropy-enthalpy compensation at 80 °C, which reflected the maintenance of its native structure. This was further supported by CD studies. The enhanced activity and thermostability of NP-laccase can be utilized for efficient decolorisation of dyes (both phenolic and azo).
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Mukhopadhyay A,Dasgupta AK,Chakrabarti Kdoi
10.1016/j.biortech.2012.09.087subject
Has Abstractpub_date
2013-01-01 00:00:00pages
25-36eissn
0960-8524issn
1873-2976pii
S0960-8524(12)01437-Xjournal_volume
127pub_type
杂志文章abstract::Laccase and laccase-based cross-linked enzyme aggregates (CLEAs) were stabilized through the formation of a surrounding polymeric network made of chitosan and 3-aminopropyltriethoxysilane. The thermoresistance of the resulting enzyme polymer engineered structures of laccase (EPES-lac) and CLEAs (EPES-CLEA) were more t...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2012.10.058
更新日期:2013-01-01 00:00:00
abstract::The aim of this work was to compare the impact of inoculation density on the rate of cellulose hydrolysis by a rumen derived culture with that of a microbial enrichment from an organic waste anaerobic digester. The results showed a linear relationship between the mass of biomass at the start of the first order degrada...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2007.09.070
更新日期:2008-07-01 00:00:00
abstract::The aim of this study was to monitor some microbial indicators and pathogen contents (sulphite reducers clostridia, total enterobacteriaceae, total coliforms, faecal coliforms (Escherichia coli), enterococci, Staphylococcus aureus and Salmonella spp.) throughout the co-composting of wastes from the winery and distille...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2007.12.051
更新日期:2008-10-01 00:00:00
abstract::The adsorption mechanisms of Pb(II) and Cd(II) in aqueous solution using camellia seed husk biochars pyrolyzed at different temperatures were studied. The adsorption of Pb(II) and Cd(II) on biochars are mainly controlled by ion exchange, oxygen functional groups (OFGs) complexation, Pb(II)/Cd(II)-π interactions, and p...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2019.121859
更新日期:2019-11-01 00:00:00
abstract::This study involves the application of new phase separated biological pretreatment (PSBP) strategy on microalgal biomass using the nickel nanoparticle induced cellulase secreting bacterial disintegration. Particularly, interest was focussed on cell wall weakening (CWW) of microalgae biomass besides the cell disintegra...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2019.121624
更新日期:2019-10-01 00:00:00
abstract::The dynamics of ammonium accumulation and mitigation control in anaerobic digestion of chicken manure under the recycled utilization of liquid digested slurry were investigated by using an integrated approach in two laboratory-scale semi-continuously stirred tank reactors. In the reactor with direct recycled utilizati...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2016.01.021
更新日期:2016-04-01 00:00:00
abstract::In the present study, the abattoir digestate was used as a culture medium for Spongiochloris sp. growth with added mineral components under optimized conditions in batch culture. Firstly, an Hadamard matrix was used to investigate the impact of certain influencing factors on the Spongiochloris sp. growth. Then, a frac...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2010.11.036
更新日期:2011-02-01 00:00:00
abstract::The aim of this work was to investigate ultrasound (US)-assisted green solvent extraction of valuable compounds from the microalgae Nannochloropsis spp. Individual green solvents (water, ethanol (EtOH), dimethyl sulfoxide (DMSO)) and binary mixture of solvents (water-DMSO and water-EtOH) were used for the extraction p...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2015.09.020
更新日期:2015-12-01 00:00:00
abstract::The aim of this work deals with the development of new approaches to the production of furfural from xylose. It combines relatively cheap heterogeneous catalysts (Amberlyst 70) with simultaneous furfural stripping using nitrogen under semi-batch conditions. Nitrogen, compared to steam, does not dilute the vapor phase ...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2011.05.015
更新日期:2011-08-01 00:00:00
abstract::Fermentation of sulfuric acid treated corn fiber hydrolysate (SACFH) inhibited cell growth and butanol production (1.7+/-0.2g/L acetone butanol ethanol or ABE) by Clostridium beijerinckii BA101. Treatment of SACFH with XAD-4 resin removed some of the inhibitors resulting in the production of 9.3+/-0.5 g/L ABE and a yi...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2007.09.087
更新日期:2008-09-01 00:00:00
abstract::Multi-stage continuous (chemostat) culture fermentation (MCCF) with variable fermentor volumes was carried out to study the utilization of glucose and xylose for ethanol production via mixed sugar fermentation (MSF). Variable fermentor volumes were used to enable enhanced sugar utilization, accounting for differences ...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2009.09.042
更新日期:2010-02-01 00:00:00
abstract::Non-catalytic hydrothermal decomposition of sericin and fibroin from silk waste into useful protein and amino acids was examined in a closed batch reactor at various temperatures, reaction times, and silk to water ratios to examine their effects on protein and amino acid yields. For the decomposition of sericin, the h...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2008.01.072
更新日期:2008-11-01 00:00:00
abstract::Drying of wet algal biomass is a major bottleneck in viable commercial production of the microalgal biodiesel. In the present investigation, an oven drying protocol was standardized for drying of wet Scenedesmus biomass at 60, 80 and 100°C with initial sample thickness of 5.0, 7.5 and 10.0mm. The optimum drying temper...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2014.12.092
更新日期:2015-03-01 00:00:00
abstract::The potential for microbial protein production in the mixture of yellow wine lees and rice soaking wastewater was examined. Strong symbiotic effect was observed in fermentation with yeast-fungus mixed culture of Candida utilis and Geochichum candidum at a ratio of 1:1 (v/v). The maximum specific biomass yield of 4.91 ...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2019.122565
更新日期:2020-03-01 00:00:00
abstract::Constructed wetlands (CWs) have been used as a green technology to treat various wastewaters for several decades. CWs offer a land-intensive, low-energy, and less-operational-requirements alternative to conventional treatment systems, especially for small communities and remote locations. However, the sustainable oper...
journal_title:Bioresource technology
pub_type: 杂志文章,评审
doi:10.1016/j.biortech.2014.10.068
更新日期:2015-01-01 00:00:00
abstract::Cost-effective methods for protecting crops from grazing organisms like rotifers are needed to reduce the risk of pond crashes in mass algal cultures. We present a novel strategy to optimize the exposure time to free ammonia, via control of media pH, in both defined media and dairy anaerobic digester effluent to suppr...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2017.07.008
更新日期:2017-11-01 00:00:00
abstract::The global economy is threatened by the depletion of fossil resources and fluctuations in fossil fuel prices, and thus it is necessary to exploit sustainable energy sources. Carbon-neutral fuels including bio-oil obtained from biomass pyrolysis can act as alternatives to fossil fuels. Co-pyrolysis of lignocellulosic b...
journal_title:Bioresource technology
pub_type: 杂志文章,评审
doi:10.1016/j.biortech.2020.123473
更新日期:2020-08-01 00:00:00
abstract::Anaerobic co-digestion of primary sludge and raw microalgae (Scenedesmus and Chlorella) was performed in a lab-scale semi-continuous anaerobic membrane bioreactor to assess the biological performance and identify the microbial community involved in the co-digestion process. The reactor was operated at 35 °C for 440 da...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2019.122521
更新日期:2020-02-01 00:00:00
abstract::Non-productive enzyme adsorption onto lignin inhibits enzymatic hydrolysis of lignocellulosic biomass. Three cellobiohydrolases, Trichoderma reesei Cel7A (TrCel7A) and two engineered fusion enzymes, with distinctive modular structures and temperature stabilities were employed to study the effect of temperature on inhi...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2013.07.069
更新日期:2013-10-01 00:00:00
abstract::Squalene is the precursor for triterpene-based natural products and steroids-based drugs. It has been widely used as pharmaceutical intermediates and personal care products. The aim of this work is to test the feasibility of engineering Yarrowia lipolytica as a potential host for squalene production. The bottleneck of...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2020.123991
更新日期:2020-12-01 00:00:00
abstract::Technological solutions to reduce greenhouse gas (GHG) emissions from anthropogenic sources are required. Heavy industrial processes, such as steel making, contribute considerably to GHG emissions. Fermentation of carbon monoxide (CO)-rich off gases with wild-type acetogenic bacteria can be used to produce ethanol, ac...
journal_title:Bioresource technology
pub_type: 杂志文章,评审
doi:10.1016/j.biortech.2016.03.094
更新日期:2016-09-01 00:00:00
abstract::Solid state and submerged fermentations in the presence of white-rot basidiomycetes (Bjerkandera adusta, Fomes fomentarius, Ganoderma resinaceum, Irpex lacteus, Phanerochaete chrysosporium, Trametes versicolor and basidiomycete Euc-1) and the litter-decomposing basidiomycete Lepista nuda were evaluated as a pretreatme...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2012.02.068
更新日期:2012-05-01 00:00:00
abstract::To estimate the order of importance of factors affecting the stability and maturation of compost, pig feces and corn stalks were co-composted at different aeration rates (AR: 0.24, 0.48, 0.72 L kg(-1)dry matter (DM)min(-1)), C/N ratios (15, 18, 21), and moisture contents (MC: 65%, 70%, 75%). The thermophilic phase wit...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2012.02.099
更新日期:2012-05-01 00:00:00
abstract::Isolation of fiber concentrate enriched in β-glucan from barley flour via air currents assisted particle separation (ACAPS) generates an underutilized by-product stream, starch concentrate. Since barley starch concentrate (BSC) is depleted in soluble fibre, we examined the enzyme requirements for its hydrolysis and su...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2020.122942
更新日期:2020-05-01 00:00:00
abstract::Despite recent advances in down-stream processing, production of microalgae remains substantially limited because of economical reasons. Harvesting and dewatering are the most energy-intensive processing steps in their production and contribute 20-30% of total operational cost. Bio-flocculation of microalgae by co-cul...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2015.03.026
更新日期:2015-06-01 00:00:00
abstract::The present work was aimed at studying the efficiency of the combined process of biofiltration with ozonation to improve the quality of secondary effluent. The secondary effluent from the Dinapur Sewage Treatment Plant Varanasi, India was used in this work. The process of biofiltration with the plant species of Eichor...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2011.04.035
更新日期:2011-07-01 00:00:00
abstract::In previous studies, ozone oyster shell fixed-bed bioreactor and membrane bioreactor (OFBR-MBR) were developed for municipal tail wastewater treatment, and qualified good effects. This study mainly discussed the bacterial community shift in response to the treatment process of OFBR-MBR. Proteobacteria, Chloroflexi, Pl...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2019.02.099
更新日期:2019-06-01 00:00:00
abstract::The potential of rice husks and straw as adsorbents after being processed by subcritical water hydrolysis (SWH) was investigated. The influences of temperature (453, 493 and 533 K) and liquid/solid ratio (7.5 and 15 g water/g biomass) on the rice straw and rice husks characteristics and on the adsorption capacity of 2...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2019.03.110
更新日期:2019-07-01 00:00:00
abstract::Pyrolysis of woody biomass, agro-residues and seed was carried out at 500 ± 10 °C in a fixed bed pyrolyser. Bio-oil yield was found varying from 20.5% to 47.5%, whereas the biochar and pyrolysis gas ranged from 27.5% to 40% and 24.5% to 40.5%, respectively. Pyrolysis gas was measured for flame temperature along with C...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2015.02.006
更新日期:2015-01-01 00:00:00
abstract::This study reported an efficient approach, i.e., alkaline followed by potassium ferrate (PF) pretreatment, to enhance short chain fatty acids (SCFAs) production from waste activated sludge anaerobic fermentation process. The optimum condition was initial pH of 10.0 and PF dosage of 28 mg Fe(VI)/g total suspended solid...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2019.121642
更新日期:2019-10-01 00:00:00