Abstract：
:This study examines the structure of residual and dissolved lignins from Pinus pinaster pulps obtained at different degrees of delignification by laboratory conventional kraft pulping. The cooking H factor was varied from 85 to 8049. The residual and dissolved lignin samples were characterised by elemental analysis, residual carbohydrate content, permanganate oxidation and 13C NMR spectroscopy. The reflectance factor of the pulps was also determined in order to tentatively correlate the delignification degree and residual lignin structure with the pulp colour. The obtained results confirmed that the delignification degree increases the condensation of the lignin structure, which might have an influence upon the observed increased pulp colour. The lack of selectivity of kraft pulping process in the case of more delignified pulps was also shown.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Baptista C,Robert D,Duarte APdoi
10.1016/j.biortech.2007.05.012subject
Has Abstractpub_date
2008-05-01 00:00:00pages
2349-56issue
7eissn
0960-8524issn
1873-2976pii
S0960-8524(07)00425-7journal_volume
99pub_type
杂志文章abstract：:An enhanced membrane bioreactor (eMBR) consisting of two anoxic bioreactors (ARs) followed by an aerated membrane bioreactor (AMBR), UV-unit and a granular activated carbon (GAC) filter was employed to treat 50-100 mg/L of remazol blue BR dye. The COD of the feed was 2334 mg/L and COD:TN:TP in the feed was 119:1.87:1....
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.01.110
更新日期：2015-05-01 00:00:00
abstract：:In this work, a simple, inexpensive, and efficient method of preparing immobilized lipase is presented. The lipase originating from a newly isolated indigenous strain Burkholderia sp. C20 was immobilized onto cellulose nitrate (CN) membrane via filtration. The CN-immobilized lipase was able to retain 60% of its origin...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2007.04.011
更新日期：2008-04-01 00:00:00
abstract：:In the present work the preparation of biodiesel from Jatropha curcas L. oil produced by two-phase solvent extraction (TSE) was studied. The experimental results of TSE process showed that the optimal extraction conditions were 30 g samples, 240 mL of extraction solvent mixture and methanol/n-hexane volume ratio 60:40...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.04.018
更新日期：2010-09-01 00:00:00
abstract：:The aim of this work was to assess the efficacy for simultaneous enhanced removal of nitrogen and phosphorus including organics treating combined wastewater generated from a chemical laboratory using a bench-scale Intermittent Cyclic Process Bio-reactor (ICPBR). The performance efficacy indicated that the ICPBR system...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2006.09.006
更新日期：2007-09-01 00:00:00
abstract：:Carbonaceous adsorbents based on novolac resin (N) and olive stone biomass (B) in a proportion of 20/80 and 40/60 w./w. N/O were produced. The specimens were cured (c) and pyrolyzed/carbonized (C) up to 1000 °C under a continuous countercurrent flow type pyrolysis operation (N20B-cC, N40B-cC). Commercial activated car...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.11.042
更新日期：2013-02-01 00:00:00
abstract：:Anaerobic bottle experiments were conducted in parallel for 120 consecutive days to perform the bioaugmentation hydrolysis of selected nitrogen heterocyclic compounds (NHCs) in coal gasification wastewater. Due to enhancement with PAC and Fe(OH)3@PAC, quinoline, pyridine, and indole were hydrolyzed more effectively. T...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.12.113
更新日期：2019-04-01 00:00:00
abstract：:The wide number of industrial processes applying cellulases highlights the importance of discovering robust enzymes able to work under harsh conditions. In this study, carboxymethyl cellulase (CMCase) activity of Paenibacillus tarimensis was characterized. A high activity was observed in pH range 3.0-10.5 and 9 mM-5 M...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2013.09.089
更新日期：2013-12-01 00:00:00
abstract：:The potential of using several agricultural by-products as supplements of sawdust substrate for the production of edible mushroom Hericium was evaluated using seven Hericium species. All the tested supplements (rice bran, wheat bran, barley bran, Chinese cabbage, egg shell, and soybean powder) were found to be suitabl...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2004.12.009
更新日期：2005-09-01 00:00:00
abstract：:Pleurotus ostreatus and Pleurotus sajor-caju were studied for their ability to produce laccase and carboxymethylcellulase (CMCase) enzymes on different agricultural wastes under solid state fermentation. The spawns of P. ostreatus and P. sajor-caju were inoculated on different agricultural wastes including viticulture...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2009.12.011
更新日期：2010-05-01 00:00:00
abstract：:The application of immobilized lipase in the enzymatic production of biodiesel has shown numerous advantages. In this study, surface of Polyacrylonitrile (PAN) hollow membrane was first modified using nitrile-click chemistry in order to fit for interaction with enzyme proteins. Then sodium alginate (SA) was introduced...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.11.075
更新日期：2019-02-01 00:00:00
abstract：:The objective of this study was to determine fire resistance of Douglas fir (Pseudotsuga menzieesi (Mirb.) Franco) specimens treated with borate supplemented aqueous solutions of brutia pine bark powder, acorn powder, sumach leaf powder, and gall-nut powder. Boric acid (BA) and borax (BX) were used as borates which ar...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2006.04.023
更新日期：2007-03-01 00:00:00
abstract：:Soil bioaugmentation was performed in soil pots to reduce the cadmium potentially available for plants. A Bacillus sp. (isolate ZAN-044) and a Streptomyces sp. (isolate R25) were compared, just as the inoculation technique, i.e., inoculum size, free or immobilized cells. After 3 weeks of a batch incubation, the potent...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2007.02.002
更新日期：2008-03-01 00:00:00
abstract：:Introduction of a limited amount of oxygen to anaerobic bioreactors is proposed as a simple technique to lower the level of sulfide in the biogas. This paper presents the results of a bioreactor study and of batch experiments that were performed to obtain better insight into the fate of sulfur compounds and oxygen dur...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2006.02.011
更新日期：2007-02-01 00:00:00
abstract：:In this study, the potential for the application of the bioaugmentation to Cd and Zn contaminated sediment was investigated. A batch experiment was performed in the lake sediments augmented with Ralstonia sp. HM-1. The degradation capacity of 18.7 mg-DOC/l/day in the treatment group was bigger than that of the blank g...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2008.02.024
更新日期：2008-11-01 00:00:00
abstract：:Silicone rubbers are hydrophobic, a feature that may prove advantageous if this material is to be used as immobilization matrix in bioconversion systems where hydrophobic species are present, such as sterols and mycobacterial cells. Mycobacterium sp. cells with sitosterol side chain cleavage activity were accordingly ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2007.05.007
更新日期：2008-05-01 00:00:00
abstract：:The soil bacterium Arthrobacter aurescens SK 8.001 produces inulin fructotransferase (IFTase), and liquid chromatography-mass spectrometry (LC-MS) and carbon-13 nuclear magnetic resonance (13C NMR) analysis demonstrated that the main product of the enzyme was difructose anhydride III (DFA III). The IFTase was purified...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.08.093
更新日期：2011-01-01 00:00:00
abstract：:In the present study, synergistic effects were observed when glycerol was co-fermented with glucose and xylose for lipid production by the oleaginous yeast Cryptococcus curvatus. Glycerol was assimilated simultaneously with sugars at the beginning of the culture without adaption time. Furthermore, better lipid product...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2016.08.021
更新日期：2016-11-01 00:00:00
abstract：:The Kraft process is the most widely used chemical process for the removal of lignin and other polymers from wood to obtain cellulosic pulp fibres. In the present study, the effect of cavitation (growth and violent collapse of vapour bubbles in a liquid) on delignification of wood was investigated. Steam was introduce...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.01.042
更新日期：2012-04-01 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：:Air pressure pulsation solid state fermentation (APP-SSF) was applied to produce feruloyl esterase (FAE) by Aspergillus niger. With the optimization of some variables by orthogonal design, the optimal condition obtained was 0.2 MPa (gauge pressure) of high pressure intensity, 30 min of low pressure duration and 20s of...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2008.08.032
更新日期：2009-02-01 00:00:00
abstract：:Six biomass pretreatment processes to convert switchgrass to fermentable sugars and ultimately to cellulosic ethanol are compared on a consistent basis in this technoeconomic analysis. The six pretreatment processes are ammonia fiber expansion (AFEX), dilute acid (DA), lime, liquid hot water (LHW), soaking in aqueous ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2011.07.051
更新日期：2011-12-01 00:00:00
abstract：:Among various forest biowastes, chestnut bur had the highest uptake values of Cd(II) and Pb(II), and these values were higher than those of agricultural biowastes used as comparable biosorbents. This study is the first report showing the high potential of chestnut bur as biosorbent for the removal of cationic heavy me...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.10.092
更新日期：2015-01-01 00:00:00
abstract：:The use of acetate as carbon feedstock can enhance sustainability and economics of the current bio-productions. This study explored the potential of acetate for the production of 3-hydroxypropionic acid by engineered Pseudomonas denitrificans. Heterologous mcr (encoding malonyl-CoA reductase) from Chloroflexus auranti...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.123194
更新日期：2020-07-01 00:00:00
abstract：:In this work, different light conditions (light intensity and photoperiodicity) were set up to investigate the impact of light on growth, chemical compositions and fatty acid profiles of Chlorella kessleri in mixotrophic cultures. Results indicated that C. kessleri could absorb and utilize glucose rapidly when light i...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.11.032
更新日期：2019-02-01 00:00:00
abstract：:Flexible control of CH4/H2 ratio in biohythane is important to its applications but remains a challenge. Herein, a dual-cathode bioelectrochemical system (BES) was developed for achieving biohythane production with controllable composition through adjusting external resistance. The BES was started as a microbial elect...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.122270
更新日期：2020-01-01 00:00:00
abstract：:Lipid extraction directly from the wet oleaginous microorganisms for biodiesel production is preferred as it reduces the energy input for traditional processes which require extensive drying of the biomass prior to the extraction. The high water content (≥80% on cell dry weight) in the wet biomass hinders the extracti...
journal_title：Bioresource technology
pub_type： 杂志文章,评审
doi：10.1016/j.biortech.2018.07.092
更新日期：2018-11-01 00:00:00
abstract：:The aim of this work was to study the potential of selected Halomonas species for conversion of waste frying oil into polyhydroxyalkanoates (PHA). In total nine Halomonas strains were experimentally screened for their capability of PHA production. Among them, Halomonas neptunia and Halomonas hydrothermalis were identi...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.122028
更新日期：2019-11-01 00:00:00
abstract：:A novel Saccharomyces cerevisiae whole-cell biocatalyst for xylitol production based on Candida tenuis xylose reductase (CtXR) is presented. Six recombinant strains expressing wild-type CtXR or an NADH-specific mutant were constructed and evaluated regarding effects of expression mode, promoter strength, biocatalyst c...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.09.046
更新日期：2015-12-01 00:00:00
abstract：:A sequencing batch reactor (SBR) enhanced with low-intensity ultrasound was designed to study the removal of nitrogen under different carbon-nitrogen (C/N) ratios. The results showed that the removal efficiencies of CODCr and nitrogen were inversely proportional to C/N ratios. The CODCr of the effluent in the control ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2013.08.141
更新日期：2013-11-01 00:00:00
abstract：:This study evaluated the removal processes involved in the removal of the phenolic component of winery wastewater in biological sand filters, sand columns and sand microcosms. It was found that at low influent phenolic concentrations, complete organic removal was accomplished, but at high concentrations, there was inc...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.04.087
更新日期：2012-09-01 00:00:00
