Abstract：
:Tannase from Penicillium variable IARI 2031 was purified by a two-step purification strategy comprising of ultra-filtration using 100 kDa molecular weight cutoff and gel-filtration using Sephadex G-200. A purification fold of 135 with 91% yield of tannase was obtained. The enzyme has temperature and pH optima of 50 degrees C and 5 degrees C, respectively. However, the functional temperature range is from 25 to 80 degrees C and functional pH range is from 3.0 to 8.0. This tannase could successfully be immobilized on Amberlite IR where it retains about 85% of the initial catalytic activity even after ninth cycle of its use. Based on the Michaelis-Menten constant (Km) of tannase, tannic acid is the best substrate with Km of 32 mM and Vmax of 1.11 micromol ml(-1)min(-1). Tannase is inhibited by phenyl methyl sulphonyl fluoride (PMSF) and N-ethylmaleimide retaining only 28.1% and 19% residual activity indicating that this enzyme belongs to the class of serine hydrolases. Tannase in both crude and crude lyophilized forms is stable for one year retaining more than 60% residual activity.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Sharma S,Agarwal L,Saxena RKdoi
10.1016/j.biortech.2007.04.035subject
Has Abstractpub_date
2008-05-01 00:00:00pages
2544-51issue
7eissn
0960-8524issn
1873-2976pii
S0960-8524(07)00381-1journal_volume
99pub_type
杂志文章abstract：:1-Alkenes are traditionally used as basic chemicals with great importance. Biosynthetic 1-alkenes also have the potential to serve as biofuels. In this study, we engineered a Pseudomonas lipolytic microbial platform for 1-alkene production using hydrophobic substrate as sole carbon source. Fatty acid decarboxylase Und...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.04.119
更新日期：2018-09-01 00:00:00
abstract：:Microbial fuel cell (MFC) is a promising device for energy generation and organic waste treatment simultaneously by electrochemically active bacteria (EAB). In this study, an integrated aerobic-anaerobic strategy was developed to improve the performance of P. aeruginosa-inoculated MFC. With an aerobic start-up and fol...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.06.050
更新日期：2017-10-01 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
abstract：:Roadside grass cuttings and solid cattle manure are resources that are available as input for dry anaerobic co-digestion. Two series of measurements were carried out, one in June 2016 and one in October 2016. The methane potentials were determined on a laboratory scale and revealed a high degree of seasonality, 202.9 ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.121737
更新日期：2019-10-01 00:00:00
abstract：:The performance and membrane fouling of a hybrid moving bed biofilm reactor-membrane bioreactor (MBBR-MBR) system was evaluated when exposed to 0.5 mg/L of antibiotic sulfadiazine (SDZ). Results indicated that although SDZ reduced the removal efficiency of NH4+-N and TN (up to 12%) and TOC (up to 6%) at low C/N (2.5 a...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.124180
更新日期：2020-12-01 00:00:00
abstract：:In this work, ammonia (NH3) torrefaction pretreatment (ATP) was developed to optimize the nitrogen and oxygen element distribution of microalgae via the N-doping and oxygen removal reaction, which could obviously improve the potential use of microalgae as a feedstock for the production of N-heterocyclic chemicals thro...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.124461
更新日期：2021-02-01 00:00:00
abstract：:Flax soda/AQ pulps were treated with different fungal laccase-mediator combinations followed by physical and chemical characterization of the pulps to obtain a thorough understanding of the laccase/mediator effects on hexenuronic acid (HexA) removal and the coupling of mediator onto pulps for fiber functionalization. ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.11.127
更新日期：2011-02-01 00:00:00
abstract：:A novel and economical method was used to optimize bacterial growth and bioemulsan production. Acinetobacter calcoaceticus PTCC 1641 was applied in an innovated synthetic medium comprised whey and mineral salt medium (MSM) in ratio of 1:1 in a shaken flask bioreactor. The optimum inoculum size, shaking frequency rate ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.07.009
更新日期：2010-12-01 00:00:00
abstract：:The chemical-looping gasification kinetics of corn straw with iron-based oxygen carrier to produce syngas were studied using thermogravimetric analysis. The main reactions of corn straw based on iron-based composite oxygen carrier is divided into three stages: the pyrolysis stage (200-500 °C), the gas-solid reaction s...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.122904
更新日期：2020-05-01 00:00:00
abstract：:Fermentation experiments were designed to elucidate the functional role of the redox microenvironment on volatile fatty acid (VFA, short chain carboxylic acid) production and co-generation of biohydrogen (H2). Higher VFA productivity was observed at pH 10 operation (6.3g/l) followed by pH 9, pH 6, pH 5, pH 7, pH 8 and...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.01.007
更新日期：2015-04-01 00:00:00
abstract：:This work examined 19 carbon samples prepared by acid and thermal activation of various agro-residues viz. bagasse, bagasse flyash, sawdust, wood ash and rice husk ash for color removal from biomethanated distillery effluent. Phosphoric acid carbonized bagasse B (PH) showed the maximum color removal (50%). However, co...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2006.09.016
更新日期：2007-10-01 00:00:00
abstract：:This critical review discusses the potential use of agricultural waste based biosorbents (AWBs) for sequestering heavy metals in terms of their adsorption capacities, binding mechanisms, operating factors and pretreatment methods. The literature survey indicates that AWBs have shown equal or even greater adsorption ca...
journal_title：Bioresource technology
pub_type： 杂志文章,评审
doi：10.1016/j.biortech.2013.08.124
更新日期：2013-11-01 00:00:00
abstract：:With graphene oxide (GO), platinum carbon (Pt/C), and reduced graphene oxide (rGO) as cathode catalysts, three types of single-chamber microbial fuel cells (MFCs) were constructed for simultaneous Cu2+ removal and electricity production. Results indicated rGO-MFC and Pt/C-MFC had much better Cu2+-removing and electric...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.123166
更新日期：2020-06-01 00:00:00
abstract：:Microwave pyrolysis of distillers dried grain with solubles (DDGS) was investigated to determine the effects of pyrolytic conditions on the yields of bio-oil, syngas, and biochar. Pyrolysis process variables included reaction temperature, time, and power input. Microwave pyrolysis of DDGS was analyzed using response s...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2011.02.050
更新日期：2011-05-01 00:00:00
abstract：:Two temperature-phased anaerobic digestion (TPAD) systems, with the thermophilic digesters acidified by acidogenesis products (AT-TPAD) or operated at neutral pH and balanced hydrolysis/acidogenesis and methanogenesis (NT-TPAD), were evaluated to treat high-strength dairy cattle manure. Despite similar methane product...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2013.06.013
更新日期：2013-09-01 00:00:00
abstract：:Anaerobic co-digestion (AcoD) of the main residues from the non-centrifugal cane sugar (NCS) making process, agricultural crop residues (ACR) and sugarcane scum (SCS), was evaluated using biochemical methane potential tests. Substrates were pretreated: ACR through particle size reduction, and SCS with dilution. The ma...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.122957
更新日期：2020-05-01 00:00:00
abstract：:The use of a single controlled bead milling step of the microalga Tetraselmis suecica resulted in a soluble fraction, rich in functional proteins. This was achieved by fine-tuning the processing time, thereby exploiting the difference in rates of protein and carbohydrate release during milling. Soluble proteins were e...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.07.131
更新日期：2018-11-01 00:00:00
abstract：:The aim of this study was to explore the pathways to mitigate the bioavailability of heavy metals (HM) during chicken and beef cattle manures composting. For raw materials, HM contents in animal manures from breeding farm were 1.5-3 times as much as that of domestic animal manures. Structural equation models (SEMs) ba...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.121657
更新日期：2019-10-01 00:00:00
abstract：:The present work is the first detailed study, which is about the performance of CW after MFC integration with it. The experiments were run in open and closed circuit mode for assessment purpose. The findings of this study indicate towards a more practical application of MFC in wastewater treatment along with electrici...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.05.072
更新日期：2015-11-01 00:00:00
abstract：:The objective was to evaluate effects of Lactobacillus plantarum and/or cellulase on fermentation, aerobic stability and bacterial community of mixed high-moisture amaranth (AF) and rice straw (RS) silage. The mixtures were treated with no addition (C), L. plantarum (L), cellulase (F) and their combination (LF). Addit...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.123772
更新日期：2020-11-01 00:00:00
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 conce...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2005.02.044
更新日期：2006-01-01 00:00:00
abstract：:The effect of dosing a metal limited anaerobic sludge blanket (UASB) reactor with a metal pulse on the methanogenic activity of granular sludge has thus far not been successfully modeled. The prediction of this effect is crucial in order to optimize the strategy for metal dosage and to prevent unnecessary losses of re...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.07.053
更新日期：2010-12-01 00:00:00
abstract：:In the present work, the pyrolysis of para grass (PG) and phumdi (PH) biomass samples was conducted in the temperature range of 300-500 °C to obtain the optimum temperature for obtaining the maximum yield of bio-oil. Further, co-pyrolysis experiments of PH and PG were also conducted at the same optimized temperature a...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.03.147
更新日期：2019-08-01 00:00:00
abstract：:In this study, the hydrolysis of marine macro-algae Gracilaria verrucosa with a solid-acid catalyst was investigated. To optimize the hydrolysis, four reaction factors, including liquid-to-solid ratio, catalyst loading, reaction temperature, and reaction time, were investigated. In the results, the highest total reduc...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.01.038
更新日期：2015-04-01 00:00:00
abstract：:Sodium hydroxide (NaOH) and calcium hydroxide (Ca(OH)2) respectively dissolved in water and 70% glycerol were applied to treat sugarcane bagasse (SCB) under the condition of 80°C for 2h. NaOH solutions could remove more lignin and obtain higher enzymatic hydrolysis efficiency of SCB than Ca(OH)2 solutions. Compared wi...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.08.101
更新日期：2017-11-01 00:00:00
abstract：:The objective of this study was to investigate the accumulation of lipid and photosynthetic pigments from Tetraselmis marina. When the cells were grown in F/2-medium for seven days in the first stage, the carotenoid and lipid contents, and productivity were 44g/kg (DW), 27% and 31mg/L/d, respectively. After second sta...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.04.008
更新日期：2017-08-01 00:00:00
abstract：:Phanerochete chrysosporium, the white-rot fungus, (a best source for lignolytic enzymes system) was used in the biological pretreatment of rice husk for reducing sugars production. Usually reducing sugar production through biochemical process involves two steps: solid state fermentation (SSF) of fungal pretreatment fo...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.10.030
更新日期：2013-01-01 00:00:00
abstract：:A fixed-film (biofilm) reactor was designed and its performance was determined at various retention times. The goal was to find the optimal retention time for recycling plant nutrients in an advanced life support system, to minimize the size, mass, and volume (hold-up) of a production model. The prototype reactor was ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/s0960-8524(02)00129-3
更新日期：2002-12-01 00:00:00
abstract：:Biochar is a promising catalyst/support for biomass gasification. Hydrogen production from biomass steam gasification with biochar or Ni-based biochar has been investigated using a two stage fixed bed reactor. Commercial activated carbon was also studied as a comparison. Catalyst was prepared with an impregnation meth...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2016.05.011
更新日期：2016-09-01 00:00:00
abstract：:This experiment evaluated the use of the material of the outer coconut shell of babaçu (Orbignya sp.), a palm tree from Brazil, for the manufacture of particleboards bonded with Portland cement. Four treatments were analyzed at two target densities (1.2 g/cm3 and 1.4 g/cm3) and two levels (0% and 4%) of addition of ca...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/s0960-8524(02)00082-2
更新日期：2002-11-01 00:00:00
