Abstract：
:Klebsiella oxytoca strains were constructed to produce optical pure d-lactate by pH-controlled batch fermentation in mineral salts medium. The alcohol dehydrogenase gene, adhE, and the phospho-transacetylase/acetate kinase A genes, pta-ackA, were deleted from the wild type. KMS002 (ΔadhE) and KMS004 (ΔadhE Δpta-ackA) exhibited d-lactate production as a primary pathway for the regeneration of NAD(+). Both strains produced 11-13 g/L of d-lactate in medium containing 2% (w/v) glucose with yields of 0.64-0.71 g/g glucose used. In sugarcane molasses, KMS002 and KMS004 produced 22-24 g/L of d-lactate with yields of 0.80-0.87 g/g total sugars utilized. Both strains also utilized maltodextrin derived from cassava starch and produced d-lactate at a concentration of 33-34 g/L with yields of 0.91-0.92 g/g maltodextrin utilized. These d-lactate yields are higher than those reported for engineered E. coli strains.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Sangproo M,Polyiam P,Jantama SS,Kanchanatawee S,Jantama Kdoi
10.1016/j.biortech.2012.05.114subject
Has Abstractpub_date
2012-09-01 00:00:00pages
191-8eissn
0960-8524issn
1873-2976pii
S0960-8524(12)00871-1journal_volume
119pub_type
杂志文章abstract：:In this study the biodegradation of polyurethane (PU) during the maturation stage of a commercial composting process was investigated. PU coupons were buried in the centre and at the surface of a 10 m high compost pile. Fungal communities colonising polyester PU coupons were compared with the native compost communitie...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.02.077
更新日期：2014-04-01 00:00:00
abstract：:To improve microalgae harvesting efficiency and to reduce the addition of chemicals in the buoy-bead flotation process, a novel buoy-bead flotation approach has been developed for harvesting Chlorella vulgaris, using surface-layered polymeric microspheres (SLPMs). Next, the detachment of microalgae cell-SLPM aggregate...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.07.065
更新日期：2018-11-01 00:00:00
abstract：:Lignocellulosic biomass is a sustainable source of renewable substrate to produce low carbon footprint energy and materials. Biomass conversion is usually performed in two steps: a biomass pretreatment for improving cellulose accessibility followed by enzymatic hydrolysis of cellulose. In this study we investigated th...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.03.045
更新日期：2019-06-01 00:00:00
abstract：:Forty-three strains were screened from crude oil-contaminated samples by toluene and cyclohexane enrichment in medium. Ten of these strains demonstrated high protease activity on skim-milk agar. Among them, the PT121 isolate, identified as Pseudomonas aeruginosa, was selected based on its extracellular protease stabil...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2008.01.030
更新日期：2008-10-01 00:00:00
abstract：:A circular economy relies on the value of resources being maximised indefinitely, requiring that virtually no unrecoverable waste occurs. Biomass is highly significant in a circular economy in terms of material products and the provision of energy. To establish a circular bioeconomy, the practical implications of biom...
journal_title：Bioresource technology
pub_type： 杂志文章,评审
doi：10.1016/j.biortech.2020.122755
更新日期：2020-03-01 00:00:00
abstract：:A modified Anaerobic Digestion Model No. 1 (ADM1) with optimized kinetic parameters was presented to model methane production in the anaerobic digestion of food waste. Experimental data from batch and semi-continuous fermentations were used to calibrate and verify the model. Modified ADM1 simulation was carried out us...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.09.091
更新日期：2019-01-01 00:00:00
abstract：:This study demonstrated the effective application of intracellular azoreductase in mediated decolorization of azo dyes. Using the quinone reductase activity of overexpressed azoreductase AZR and quinone redox mediators, the decolorization performance of the recombinant strain Escherichia coli YB was significantly enha...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2008.12.040
更新日期：2009-06-01 00:00:00
abstract：:In this study, stepwise increases in linalool production were obtained by combining metabolic engineering and process optimization of an unconventional oleaginous yeast Yarrowia lipolytica. The linalool synthetic pathway was successfully constructed by heterologously expressing a codon-optimized linalool synthase gene...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.06.105
更新日期：2017-12-01 00:00:00
abstract：:Digestion of raw feathers in anaerobic digesters inoculated with adapted swine manure, slaughterhouse sludge or dairy manure was investigated using twelve 42-L anaerobic digesters at 25°C. After 120days 74%, 49% and 40% added feathers were converted to methane in swine manure, dairy manure and slaughterhouse sludge an...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.01.107
更新日期：2012-04-01 00:00:00
abstract：:Two landfill bioreactors were operated under aerobic and anaerobic conditions in a thermo-insulated room at a constant temperature of 32 degrees C. Reactors were filled with 19.5 kg of shredded synthetic solid waste prepared according to the average municipal solid waste compositions determined in Istanbul and operate...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2007.11.008
更新日期：2008-09-01 00:00:00
abstract：:This paper explores the use of the hydrolysate from the dilute sulfuric acid pretreatment of wheat straw for microbial oil production. The resulting hydrolysate was composed of pentoses (24.3g/L) and hexoses (4.9 g/L), along with some other degradation products, such as acetic acid, furfural, and hydroxymethylfurfural...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2011.02.081
更新日期：2011-05-01 00:00:00
abstract：:The effect of enzyme loading under static and agitated conditions was investigated. Enzymatic hydrolysis of 10 w/v% de-lignified cellulose slurry such as filter paper, avicel and pulp was conducted under agitated (120 rpm) and static condition, and the enzyme loading ranging from 1.2 to 120 mg-protein/g-dry substrate....
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.06.104
更新日期：2012-10-01 00:00:00
abstract：:The whole-cell nitrilase-catalyzed asymmetric hydrolysis of nitriles is a green and efficient preparation approach for chiral carboxylic acids, but often suffers from toxicity and cell lysis from organic substrates. In this work, a novel integrated process for whole-cell nitrilase-catalyzed asymmetric hydrolysis was d...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.124392
更新日期：2021-01-01 00:00:00
abstract：:The flocculated solid fraction of olive mill wastewaters, obtained from two different olive oil extraction systems (FOMW1 and FOMW2) was composted, with olive leaves (OL) as bulking agent, by the static pile system (Rutgers). The dynamic of organic matter (OM) degradation during composting and its relationship with th...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/s0960-8524(02)00106-2
更新日期：2003-01-01 00:00:00
abstract：:Biological pretreatment of paddy straw was carried out using an actinomycete isolate, identified as Streptomyces griseorubens ssr38, for delignification under solid state fermentation and enhanced sugar recovery by enzymatic saccharification. After 10 days incubation, the inoculated paddy straw was extracted with mild...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.11.040
更新日期：2013-05-01 00:00:00
abstract：:The aim of this work was to improve sugarcane bagasse thermochemical conversion to pyrolytic sugars production, particularly to levoglucosan. The experiments were carried out evaluating the effect of acid washing with HNO3 (0.1wt.%) followed by H2SO4 addition (0.1, 0.2 and 0.3wt.%) at pyrolysis temperatures of 350, 40...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2016.10.051
更新日期：2017-01-01 00:00:00
abstract：:In this study, AB113 dye was successfully sequestered using a novel adsorbent made of mixed fish scales (MFS). The influence of adsorbent dosage, initial pH, temperature, initial concentration and contact time on the adsorption performance was investigated. The surface chemistry and morphology of the adsorbent were ex...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.08.153
更新日期：2017-12-01 00:00:00
abstract：:In this work, a novel solvent, deep eutectic solvent (DES) was applied to examine its effectiveness in pretreating OPEFB. Three types of DESs, i.e. choline chloride-lactic acid (ChCl-LA), choline chloride-urea (ChCl-U) and choline chloride-glycerol (ChCl-G) were investigated. The pretreatment performance was based on ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.03.065
更新日期：2019-06-01 00:00:00
abstract：:Growth media for cellulolytic Clostridium thermocellum ATCC 27405 and Caldicellulosiruptor bescii bacteria usually contain excess nutrients that would increase costs for consolidated bioprocessing for biofuel production and create a waste stream with nitrogen, sulfur and phosphate. C. thermocellum was grown on crystal...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.12.006
更新日期：2013-02-01 00:00:00
abstract：:Volatile fatty acids (VFA) are one of the most promising sustainable and environmentally friendly bioproduct owing to their wide usage area and high market demand. For this reason, in this study, the evaluation of VFA production from pure and mixed bacterial cultures was aimed. Three different mixed cultures with C. a...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.122415
更新日期：2020-02-01 00:00:00
abstract：:The ammonia fiber expansion (AFEX) process has been shown to be an effective pretreatment for lignocellulosic biomass. Technological advances in AFEX have been made since previous cost estimates were developed for this process. Recent research has enabled lower overall ammonia requirements, reduced ammonia concentrati...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2008.02.059
更新日期：2008-11-01 00:00:00
abstract：:The garbage enzymes produced from preconsumer organic waste containing multi hydrolytic enzyme activity which helps to solubilize the waste activated sludge. The continuous production of garbage enzyme and its scaling up process need a globe optimized condition. In present study the effect of fruit peel composition an...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2016.12.029
更新日期：2017-02-01 00:00:00
abstract：:High purity cellulose pulp was obtained from Eucalyptus globulus wood by using an environmentally friendly delignification technique (Milox pulping) and subsequent bleaching by totally chlorine free technology. The pulp obtained under optimised experimental conditions was used for the manufacture of carboxymethylcellu...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/s0960-8524(03)00066-x
更新日期：2003-09-01 00:00:00
abstract：:A new pretreatment method of lignocellulosic biomass was explored by using a wet aerobic process with an alkaline lignin and a mineral salt solution. This treatment significantly improved structural modification of rape straw used as substrate model in this study. Change in cellulose accessibility to cellulase of rape...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.03.142
更新日期：2017-08-01 00:00:00
abstract：:In this research, direct conversion of wet algal biomass into biodiesel using supercritical methanol was studied. In this process, microalgal lipids simultaneously was extracted and converted to biodiesel under high pressure and temperature conditions without using any catalyst. Several experiments have been performed...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.06.045
更新日期：2015-10-01 00:00:00
abstract：:Pharmaceuticals in surface waters and wastewater treatment plants (WWTPs) as emerging pollutants have become a major concern. In comparison with other wastewater treatments, removal of pharmaceuticals in MBR has received much attention. This review presents the source and occurrence of pharmaceuticals in WWTPs influen...
journal_title：Bioresource technology
pub_type： 杂志文章,评审
doi：10.1016/j.biortech.2018.08.029
更新日期：2018-11-01 00:00:00
abstract：:Three different biochars as cost-effective substitutes for activated carbon (AC) were tested for their hydrogen sulfide (H2S) adsorption ability. The biochars were produced from camphor (SC), bamboo (SB), and rice hull (SR) at 400°C by oxygen-limited pyrolysis. The surface area (SA), pH, and Fourier transform infrared...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2013.01.114
更新日期：2013-04-01 00:00:00
abstract：:Continuous adsorption experiments were performed in a fixed-bed adsorption column to evaluate the performance of low-cost adsorbent (sawdust) developed for the removal of Cr(VI) from aqueous solutions. The effects of influencing parameters such as flow rate, mass of adsorbent, initial Cr(VI) concentration were studied...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2009.06.025
更新日期：2009-12-01 00:00:00
abstract：:A new agricultural antibiotic, 2-heptyl-5-hexylfuran-3-carboxylic acid (HHCA), was recently discovered, but its further application was limited due to its low production titer. In shake flask fermentation, the effect of initial K(L)a within the range of 2.12-18.87 h⁻¹ on HHCA production was investigated. The cell grow...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2011.07.011
更新日期：2011-10-01 00:00:00
abstract：:The effects of antifoaming agents on fermentative hydrogen production using galactose in batch and continuous operations were investigated. Batch hydrogen production assays with LS-303 (dimethylpolysiloxane), LG-109 (polyalkylene), LG-126 (polyoxyethylenealkylene), and LG-299 (polyether) showed that the doses and type...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2016.02.121
更新日期：2016-08-01 00:00:00
