Abstract：
:The aim of the study was to increase production of (R)-PAC by altering carboligation activity of Pdc in Saccharomyces cerevisiae. Pdc1 activity was modified by over-expression as well as changing the rate of decarboxylation and carboligation by site specific mutation in Pdc1. Over-expression of mutant Pdc1 resulted in 50 ± 2.5% increase in levels of (R)-PAC in wild-type and further 30-40% in pdc null background. The combination of mutant Pdc1 in pdc null background was successfully evaluated for production of (R)-PAC at industrial scale. This is the first report of enhancing (R)-PAC product in yeast by recombinant technology with capability of commercial production.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Agarwal PK,Uppada V,Swaminathan AG,Noronha SBdoi
10.1016/j.biortech.2015.05.060subject
Has Abstractpub_date
2015-09-01 00:00:00pages
90-6eissn
0960-8524issn
1873-2976pii
S0960-8524(15)00733-6journal_volume
192pub_type
杂志文章abstract：:One of the major ecological concerns associated with biodiesel production is the generation of waste/crude glycerol during the trans-esterification process. Purification of this crude glycerol is not economically viable. In this context, the development of an efficient and economically viable strategy would be biotran...
journal_title：Bioresource technology
pub_type： 杂志文章,评审
doi：10.1016/j.biortech.2017.05.056
更新日期：2017-09-01 00:00:00
abstract：:The conditions for maximum lactulose production from lactose, as a single substrate, by a thermostable recombinant cellobiose-2-epimerase from Caldicellulosiruptor saccharolyticus were determined to be pH 7.5, 80 °C, 700 g l(-1) lactose, and 150 U ml(-1) of enzyme. Under the conditions, the enzyme produced the two bif...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2011.11.016
更新日期：2012-01-01 00:00:00
abstract：:The aim of this study was to assess the potential of Allolobophora parva Eisen as a candidate for vermicomposting practices. Five organic waste mixtures: cow dung (CD), biogas plant slurry (BGS), cow dung+vegetable waste (CD+VW), BGS+VW and VW+Soil were vermicomposted using A. parva. Vermicomposting showed a decrease ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2009.07.004
更新日期：2009-12-01 00:00:00
abstract：:A gasification test rig was designed in which peat was gasified under nitrogen over a temperature range 25-550 degrees C at 5 degrees C min(-1). The gasification unit resulted in 35.5 wt% of the carbon present in the peat being converted to a volatile fraction. The volatile fraction was transferred to a secondary cata...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/s0960-8524(01)00086-4
更新日期：2001-11-01 00:00:00
abstract：:Two SBR reactors were set up to investigate the feasibility of aerobic granulation under the combined selection pressures of hydraulic shear force and substrate loading. Aerobic granulation was studied at superficial upflow air velocity of 3.2 and 2.4 cm/s under an organic loading rate (OLR) range of 6.0-15.0 kg COD/m...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2008.02.028
更新日期：2008-11-01 00:00:00
abstract：:Two novel two-step pretreatments for enzymatic hydrolysis of rice hull (RH) were proposed to lower the severity requirement of fungal pretreatment time. They consisted of a mild physical or chemical step (ultrasonic and H(2)O(2)) and a subsequent biological treatment (Pleurotus ostreatus). The combined pretreatments l...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2008.07.025
更新日期：2009-01-01 00:00:00
abstract：:This work investigated the effect of culture medium composition on a biosurfactant production and their total fatty acids content, as well as the surface tension of media, and biomass production by Candida ingens. A factorial experimental design was used to evaluate the combined effect of C/P, C/N(inorganic), C/Fe, C/...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2005.11.025
更新日期：2007-01-01 00:00:00
abstract：:This study demonstrated that partial nitritation using nitrifying activated sludge entrapped in a polyethylene glycol (PEG) gel carrier, as a pretreatment to anammox process, could be successfully applied to digester liquor of biogas plant at a nitrogen loading rate of 3.0 kg-N/m(3)/d. The nitritation process produced...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2008.11.055
更新日期：2009-11-01 00:00:00
abstract：:Aerobic sludge stabilization was assessed respirometrically with the sludge taken from the secondary settling tank of a domestic wastewater treatment facility in Istanbul, Turkey. Zero-order removal rates of 178, 127 and 44 mg/L day were found for Suspended Solids (SS), Volatile Suspended Solids (VSS) and Total Organi...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2009.10.058
更新日期：2010-04-01 00:00:00
abstract：:In this study, a pilot-scale anaerobic dynamic membrane bioreactor was operated for 142days for treating landfill leachate. Under stable operation, average COD removal efficiency of 62.2% was achieved when the reactor was fed with the raw leachate containing total ammonium concentration above 3000mg/L and COD above 13...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.03.014
更新日期：2014-06-01 00:00:00
abstract：:We investigated L-lactic acid production in static batch fermentation of kitchen refuse using a bacterial consortium from marine-animal-resource (MAR) composts at temperatures ranging from 30 to 65 °C. At relatively low temperatures butyric acid accumulated, whereas at higher temperatures L-lactic acid was produced. I...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2013.07.102
更新日期：2013-10-01 00:00:00
abstract：:Carboxylated single-walled carbon nanotubes (SWCNTCOOH) were used as support for covalent immobilization of Candida antarctica lipase B (CaL-B) using linkers with different lengths. The obtained nanostructured biocatalysts with low diffusional limitation were tested in batch mode in the ethanolysis of the sunflower oi...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.10.072
更新日期：2016-01-01 00:00:00
abstract：:The present study investigates the effects of different physico-chemical parameters for the growth of Chlorella sorokiniana and subsequently determination of nutritional values of its biomass. Most suitable temperature, light intensity, pH, and acetic acid concentration were 30°C, 100 μmol m(-2)s(-1), pH 7.5, and 34.8...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.05.118
更新日期：2014-09-01 00:00:00
abstract：:High concentrations of residual arsanilic acid occur in pig manure due to its use in feed to promote growth and control diseases. This study compared the effects of arsanilic acid at three concentrations (0, 325, and 650mg/kg dry pig manure) on the abundance of antibiotic resistance genes (ARGs) and the microbial comm...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.03.025
更新日期：2017-06-01 00:00:00
abstract：:Both filamentous microalgae Tribonema and unicellular microalgae Nanochloropsis are promising feedstock for biodiesel production. Nitrogen starvation increased lipid content in Nannochloropsis but decreased that in Tribonema. In this study, biochemical responses of Tribonema under different levels of nitrogen (0N, 0.0...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.01.144
更新日期：2014-04-01 00:00:00
abstract：:The aim of this work aims to synthesize the high performance porous carbons from lignin and rice husk (RH) via one-step pyrolysis with KOH and PVC. And those porous carbons were evaluated for toluene sorption. The unactivated biochars had ultralow specific surface area (SBET). By co-pyrolysis of biomass with KOH, the ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.03.149
更新日期：2019-07-01 00:00:00
abstract：:Microbial population dynamics were studied during the start-up and stabilization periods in thermophilic-dry anaerobic digestion at lab-scale. The experimental protocol was defined to quantify Eubacteria and Archaea using Fluorescent in situ hybridization (FISH) in a continuously stirred tank reactor (CSTR), without r...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2007.05.063
更新日期：2008-05-01 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：:Batch scale activated sludge kinetic studies were undertaken for the treatment of pet food wastewater characterized by oil and grease concentrations of up to 21,500 mg/L, COD and BOD concentrations of 75,000 and 60,000 mg/L, respectively as well as effluent from the batch dissolved air flotation (DAF) system. The cond...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2005.02.003
更新日期：2006-01-01 00:00:00
abstract：:The use of composted grape marc (CGM) as a plant growth medium was investigated with Hypostases (Hypostases phyllostagya). Seven media were prepared using CGM mixed, in different ratios, with native peat and perlite. The following mixtures were used: 100% CGM, 75% CGM + 25% peat, 50% CGM + 50% perlite, 25% CGM + 75% p...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/s0960-8524(00)00171-1
更新日期：2001-05-01 00:00:00
abstract：:The Scenedesmus obliquus FSP-3, a species with excellent potential for CO(2) capture and lipid production, was harvested using dispersed ozone flotation. While air aeration does not, ozone produces effective solid-liquid separation through flotation. Ozone dose applied for sufficient algal flotation is similar to thos...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.04.083
更新日期：2011-01-01 00:00:00
abstract：:A novel and efficient organic amine and organosolv synergetic pretreatment method was developed to overcome the recalcitrance of lignocellulose to produce fermentable sugars and high-quality salt-free lignin. After optimization of the process parameters, a delignification of 81.7% and total sugar yield of 83.2% (87.1%...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.02.041
更新日期：2017-05-01 00:00:00
abstract：:Effects of operation parameters on hydrogen production rate, substrate utilization efficiency and hydrogen bioconversion yield were investigated in a photobioreactor packed with sodium alginate/polyvinyl alcohol-124/carrageenan granules containing Rhodopseudomonas palustris CQK 01. Results demonstrate that an increase...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.01.045
更新日期：2010-06-01 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 goal of the presented work was the evaluation and comparison of two biochars (produced from Sida hermaphrodita - BCSH/laboratory produced and from wheatstraw - BCS/commercial available) to adsorb heavy metal ions (Cd(II), Cu(II) and Zn(II)) from water. Kinetics of the sorption as well as sorption isotherms, the in...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.08.006
更新日期：2015-11-01 00:00:00
abstract：:The use of heterogeneous conditions involving Montmorillonite K10 clay was investigated as a mild alternative to homogeneous acidolysis of a lignin model. Guaiacyl Dehydrogenation Oligomers (DHOs) synthesized by horseradish peroxidase were selected as starting material. Hydrolysis products were analyzed by gel permeat...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2009.08.037
更新日期：2010-01-01 00:00:00
abstract：:Sugarcane processing in sugar industry results in generation of vast amounts of wastes, which can be valorized to biofuels and value-added chemicals based on the concept of circular bioeconomy. For successful commercialization, economic and technological bottlenecks must be clearly identified. In this review, the stat...
journal_title：Bioresource technology
pub_type： 杂志文章,评审
doi：10.1016/j.biortech.2020.122929
更新日期：2020-05-01 00:00:00
abstract：:A N-doped couping MgO-modified biochar (MgO-N-BC) was synthesized from corncob-to-xylose residue by two-step slow pyrolysis method. The biochar exhibited a remarkable Pb(II) sorption capacity (maximum 1429 mg·g-1) in aqueous solution. The sorption of Pb(II) onto MgO-N-BC best fitted Freundlich model and pseudo-second-...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.123708
更新日期：2020-10-01 00:00:00
abstract：:An industrial raw Kraft lignin was investigated to ascertain its potential use for removal of trace Ni(II) ion from wastewater by using dilute solutions (0.34-1.7 mM) as models. The effect of demineralisation on its metal sorption ability was examined by employing acid pre-treated samples. Under fixed pre-established ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2008.08.023
更新日期：2009-02-01 00:00:00
abstract：:Dominant thermogravimetric signatures related to lignin were observed in cashew shell as compared to these signatures in cashew shell cake. The phenomenon of weakening of lignin from cashew shell to cashew shell cake was explained on the basis of changes in the activation energies. The pertinent temperature regimes re...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2013.12.087
更新日期：2014-03-01 00:00:00
