Abstract：
:Different culture conditions for Protaminobacter rubrum and enzymatic reaction parameters were evaluated with the goal of improving isomaltulose production. P. rubrum was grown in a medium with 1% (w/v) cane molasses and 0.5% yeast extract and achieved a maximum cell yield Y(x/s) of 0.295 g of cells/g sucrose and a specific growth rate (mu) of 0.192 h(-1). The immobilization of P. rubrum cells was carried out with calcium alginate, glutaraldehyde and polyethyleneimine. Stabile immobilized cell pellets were obtained and used 24 times in batch processes. Enzymatic conversion was carried out at different sucrose concentrations and in pH 6 medium with 70% (w/v) sucrose at 30 degrees C an isomaltulose yield of 89-94% (w/v) was obtained. The specific activity of the P. rubrum immobilized pellets in calcium alginate at 30 degrees C ranged from 1.6 to 4.0 g isomaltulose g(-1) pellet h(-1), respectively with 70% and 65% sucrose solution, while in lower sucrose concentration had higher specific activities presumably due to substrate inhibition of the isomaltulose synthase in higher sucrose concentrations.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
de Oliva-Neto P,Menão PTdoi
10.1016/j.biortech.2009.03.060subject
Has Abstractpub_date
2009-09-01 00:00:00pages
4252-6issue
18eissn
0960-8524issn
1873-2976pii
S0960-8524(09)00317-4journal_volume
100pub_type
杂志文章abstract：:The binary sorption of Pb(II) and Cu(II) onto calcium alginate, algal biomass and algal/glutaraldehyde-crosslinked polyethyleneimine (PEI) composite beads was studied in the absence and presence of Ca(II). Different competitive models were compared for predicting the equilibrium data. Results show that all the sorbent...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.01.066
更新日期：2017-05-01 00:00:00
abstract：:Rhizopus chinensis produces two lipases that catalyze ester synthesis when cultured under solid-state fermentation. The Lip2 was purified to homogeneity by ammonium sulphate precipitation, hydrophobic interaction chromatography and gel filtration chromatography. It has an apparent molecular weight of 33 kDa estimated ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2008.11.006
更新日期：2009-05-01 00:00:00
abstract：:Life cycle assessment has been used to investigate the environmental and economic sustainability of a potential operation in the UK in which bioethanol is produced from the hydrolysis and subsequent fermentation of coppice willow. If the willow were grown on idle arable land in the UK, or, indeed, in Eastern Europe an...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.07.104
更新日期：2010-12-01 00:00:00
abstract：:A bench-scale constructed wetland combined with microbial electrochemical technology (MET-CW) was run for 400days with groundwater contaminated with benzene, methyl-tert-butyl ether (MTBE), and ammonium (NH4(+)). Four vertically stacked anode modules were embedded into a sand bed and connected with a stainless steel c...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.07.111
更新日期：2015-11-01 00:00:00
abstract：:A series of experiments was conducted to explore the effects of various water-washing solid-liquid ratios (1:50 and 1:10) and the stirring on wheat straw (WS) combustion properties. Comparing different solid-liquid ratio groups, a 16% increment in the higher heating value was obtained for 1:50 groups and only 5% for 1...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.09.052
更新日期：2017-12-01 00:00:00
abstract：:The main objective of the present study is aimed to optimize the process parameters for the production of glucose from karanja seed cake. The Taguchi robust design method with L9 orthogonal array was applied to optimize hydrolysis reaction conditions and maximize sugar yield. Effect of temperature, acid concentration,...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.05.065
更新日期：2014-08-01 00:00:00
abstract：:Municipal solid waste (MSW) represents an attractive cellulosic resource for sustainable fuel production. However, its heterogeneity is the major barrier to efficient conversion to biofuels. MSW paper mix was generated and blended with corn stover (CS). It has been shown that both of them can be efficiently pretreated...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.02.087
更新日期：2015-06-01 00:00:00
abstract：:To establish a sustainable society, commodity chemicals need to be developed from biomass resources. Recently, (R)-3-hydroxybutyric acid ((R)-3-HB), a monomer of bioplastic poly-(R)-3-hydroxybutyric acid (PHB), has attracted attention for its possible use in the chemical industry. Halophilic bacteria have been conside...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.01.073
更新日期：2014-03-01 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：:Mesophilic hydrogen production from acid pretreated hydrolysate (biomass concentration of 100g/L and 2% hydrochloric acid) of de-oiled jatropha waste was carried out in continuous system using immobilized microorganisms at various hydraulic retention times (HRTs) ranging from 48 to 12h. The experimental results of the...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.03.059
更新日期：2017-09-01 00:00:00
abstract：:The conventional biological nitrogen removal process is receiving increasing pressure partially due to its energy-negative operation. To address this challenge, various mainstream deammonification processes have been explored for energy-neutral municipal wastewater treatment, whereas these processes appear challenging...
journal_title：Bioresource technology
pub_type： 杂志文章,评审
doi：10.1016/j.biortech.2019.122674
更新日期：2020-03-01 00:00:00
abstract：:Hydrothermal liquefaction of rice straw has been carried out using various organic solvents (CH3OH, C2H5OH) at different temperatures (250, 280 and 300 °C) and residence times (15, 30 and 60 min) to understand the effect of solvent and various reaction parameters on product distribution. Maximum liquid product yield (...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.01.001
更新日期：2015-01-01 00:00:00
abstract：:This study experimentally investigated the potassium fixation ability and ash fusion characteristics during the gasification of corn stalk coke blended with coal ash in CO2 atmosphere. The ash samples were analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). FactSage was also employed to calcula...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.09.053
更新日期：2018-12-01 00:00:00
abstract：:In this study, the effects of different carbon sources on cell growth and lipid accumulation of Scenedesmus quadricauda were investigated. Results showed that S. quadricauda could grow on photoautotrophic, heterotrophic and mixotrophic modes. The lipid yield of S. quadricauda was much lower in the culture containing N...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.02.129
更新日期：2012-06-01 00:00:00
abstract：:Aim of the present study was to identify type and amount of emissions during the drying of biogas digestate in a two-belt conveyor dryer at different temperature settings and to investigate the effect on its nutrient content. Furthermore, the possibility of recovering nitrogen from the exhaust air was investigated. Em...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.09.099
更新日期：2018-01-01 00:00:00
abstract：:This study examine ways to make biorefinery lignin accessible for anaerobic digestion. The raw material was the residue after removing carbohydrates by Wet Explosion pretreatment at 190 °C and 7.5% O2 followed by enzymatic hydrolysis. The residual solid was mainly composed of lignin and was the raw material for a seco...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.122537
更新日期：2020-02-01 00:00:00
abstract：:In order to evaluate the hydrothermal treatment (HTT) in enhancing compost stability and maturity of lignocellulosic agricultural residues, a bin-scale (90 L) composting of rice straw with and without "HTT" was performed. The rice straw compost product with "HTT" after 6 weeks of composting can be considered stable an...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2013.10.083
更新日期：2014-01-01 00:00:00
abstract：:Supercritical carbon dioxide extraction (SC-CO(2)) of oil from desilked silkworm pupae was performed. Response surface methodology (RSM) was applied to optimize the parameters of SC-CO(2) extraction. The effects of independent variables, including pressure, temperature, CO(2) flow rate, and extraction time, on the yie...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2009.04.010
更新日期：2009-09-01 00:00:00
abstract：:A carbon-rich solid product, denoted as hydrochar, was synthesized by hydrothermal carbonization (HTC) of palm oil empty fruit bunch (EFB), at different pre-treatment temperatures of 150, 250 and 350 °C. The conversion of the raw biomass to its hydrochar occurred via dehydration and decarboxylation processes. The hydr...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.09.042
更新日期：2013-05-01 00:00:00
abstract：:In this study, we investigated the effects of electrical treatment on Haematococcus pluvialis growth. The slow growth of H. pluvialis is a major limitation for its mass production. We discovered that electrical treatment may promote the growth of H. pluvialis. To evaluate optimal growth-promoting conditions, the algal...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.08.014
更新日期：2018-11-01 00:00:00
abstract：:This study determines cellulose solubilization kinetics from controlled batch digestions and shows the effect of inoculum biomass concentrations. Separate measurements and analyzes were performed for sessile biomass (biofilms) and planktonic biomass (free suspensions). Experiments were conducted using either leachate ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2009.05.018
更新日期：2009-11-01 00:00:00
abstract：:Two immobilized preparations from Thermomyces lanuginosus lipase (TLL) were compared in the synthesis of butyl butyrate. The commercial Lipozyme TL-IM, and TLL immobilized on styrene-divinylbenzene beads (MCI-TLL) were tested in the esterification reaction using n-hexane as solvent. The variables temperature (30-60°C)...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2013.02.052
更新日期：2013-04-01 00:00:00
abstract：:Increasing uses and disposals of antibiotics to the environment have increased emergence of various antibiotic resistance. One of the sources for the spread of antibiotic resistance is wastewater treatment plant, where bacteria and antibiotics can come in contact and can acquire antibiotics resistance. There are very ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.01.052
更新日期：2015-01-01 00:00:00
abstract：:In this work, in order to improve the adhesion between a polyester matrix (unsaturated polyester resin) and flax fibres (Linum usitatissimum L.) and to increase their moisture resistance, chemical surface treatments have been used. These different treatments were performed with maleic anhydride (MA), acetic anhydride ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2009.04.067
更新日期：2009-10-01 00:00:00
abstract：:In this study, natural seawater without additional chemicals was selected to treat sugarcane bagasse for the production of xylooligosaccharides and glucose. This pretreatment not only more effectively conserves freshwater resources than hydrothermal pretreatment and enzymatic hydrolysis, but also decreases corrosion o...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.123385
更新日期：2020-08-01 00:00:00
abstract：:An integrated ethanol-methane fermentation system was proposed to resolve wastewater pollution in cassava ethanol production. In the integrated system, wastewater originating from ethanol distillation was treated by two-stage anaerobic digestion and then used in medium for the next batch of ethanol fermentation. Ammon...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.06.032
更新日期：2012-09-01 00:00:00
abstract：:Two of the six esterases identified in Cucurbita pepo cv. "Eskandrani" were purified to homogeneity using two chromatography steps: anion exchange and gel filtration. The molecular weights of C. pepo esterases EIc and EII were 50,000 +/- 1500 and 68,000 +/- 1900 Da from gel filtration and 47,000 and 66,000 Da from SDS...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2006.11.062
更新日期：2008-01-01 00:00:00
abstract：:Sludge reduction via microbial metabolism does not require extra energy and resource inputs and thus merits attention as an alternative approach for sustainable wastewater treatment. This review presents a summary and analysis of the existing literatures on sludge reduction based on microbial metabolism, as well as in...
journal_title：Bioresource technology
pub_type： 杂志文章,评审
doi：10.1016/j.biortech.2019.122506
更新日期：2020-02-01 00:00:00
abstract：:Two sulfated zirconias were synthesized and characterized by X-ray diffraction and infrared spectroscopy. They were used as catalysts in the alcoholysis of soybean oil and in the esterification of oleic acid. Using sulfated zirconia prepared by the solvent-free method (S-ZrO(2)) as catalyst, the alcoholysis conversion...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2007.09.092
更新日期：2008-09-01 00:00:00
abstract：:Partial nitrification (PN) process is an essential pre-treatment to Anammox process for nitrogen removal from ammonium-rich wastewaters. High activity nitrifiers (HANs) are considered as the key to high-rate PN process. The HANs could be successfully enriched at free ammonia (FA) concentrations of 10-20 mg NH(3)-NL(-1...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.04.080
更新日期：2010-10-01 00:00:00
