Abstract:
:Lipase-catalyzed caffeic acid phenethyl ester (CAPE) synthesis in ionic liquid, 1-ethyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide ([Emim][Tf(2)N]), was investigated in this study. The effects of several reaction conditions, including reaction time, reaction temperature, substrate molar ratio of phenethyl alcohol to caffeic acid (CA), and weight ratio of enzyme to CA, on CAPE yield were examined. In a single parameter study, the highest CAPE yield in [Emim][Tf(2)N] was obtained at 70 °C with a substrate molar ratio of 30:1 and weight ratio of enzyme to CA of 15:1. Based on these results, response surface methodology (RSM) with a 3-level-4-factor central composite rotatable design (CCRD) was adopted to evaluate enzymatic synthesis of CAPE in [Emim][Tf(2)N]. The four major factors were reaction time (36-60 h), reaction temperature (65-75 °C), substrate molar ratio of phenethyl alcohol to CA (20:1-40:1), and weight ratio of enzyme to CA (10:1-20:1). A quadratic equation model was used to analyze the experimental data at a 95 % confidence level (p < 0.05). A maximum conversion yield of 99.8 % was obtained under the optimized reaction conditions [60 h, 73.7 °C, substrate molar ratio of phenethyl alcohol to CA (27.1:1), and weight ratio of enzyme to CA (17.8:1)] established by our statistical method, whereas the experimental conversion yield was 96.6 ± 2 %.
journal_name
Bioprocess Biosyst Engjournal_title
Bioprocess and biosystems engineeringauthors
Ha SH,Van Anh T,Koo YMdoi
10.1007/s00449-013-0906-6subject
Has Abstractpub_date
2013-06-01 00:00:00pages
799-807issue
6eissn
1615-7591issn
1615-7605journal_volume
36pub_type
杂志文章abstract::This study introduces an effective method to deposit polypyrrole (PPy) on graphite felt (GF) as anode to improve the start-up performance of microbial fuel cells (MFCs). The results of scanning electron microscope (SEM) and electrochemical testing reveal that polypyrrole is able to improve the electrical conductivity ...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-019-02238-y
更新日期:2020-03-01 00:00:00
abstract::A kinetic model for glucose and xylose co-substrate uptake in Saccharomyces cerevisiae is presented. The model couples the enzyme kinetics with the glucose-dependent genetic expression of the individual transport proteins. This novel approach implies several options for optimizing the co-substrate utilization. Interes...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-007-0169-1
更新日期:2008-06-01 00:00:00
abstract::The phasing technique is a method for synchronizing cell populations in a bioreactor. Periodic changes of substrate supply and depletion can provoke a cell cycle phasing of originally stochastic scattered proliferation patterns. Synchronized cell populations characterized by changes in DNA content distribution can be ...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-007-0180-6
更新日期:2008-08-01 00:00:00
abstract::Polyhydroxyalkanoates (PHAs) are biological plastics that are sustainable alternative to synthetic ones. Numerous microorganisms have been identified as PHAs producers. They store PHAs as cellular inclusions to use as an energy source backup. They can be produced in shake flasks and in bioreactors under defined fermen...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章,评审
doi:10.1007/s00449-019-02093-x
更新日期:2019-06-01 00:00:00
abstract::An alternating pumped sequencing batch biofilm reactor (APSBBR) system was developed to treat small-scale domestic wastewater. This laboratory system had two reactor tanks, Reactor 1 and Reactor 2, with two identical plastic biofilm modules in each reactor. Reactor 1 of the APSBBR had five operational phases--fill, an...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-005-0038-8
更新日期:2006-04-01 00:00:00
abstract::Light and bacteria can be used in combination to enhance secondary metabolite production during fermentation. Red yeast rice powder (RYRP) was inoculated with Bacillus subtilis (B2) isolated from freshwater seafood and incubated under light-emitting diodes (LEDs) of different colors (blue, green, red, white), fluoresc...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-018-2056-3
更新日期:2019-04-01 00:00:00
abstract::Bio-catalytic in vitro multistep reactions can be combined in a single step in one pot by optimizing multistep reactions under identical reaction condition. Using this analogy, the process of making PEGylated insulin, IN-105, was simplified. Instead of taking the purified active insulin bulk powder as the starting mat...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-012-0722-4
更新日期:2012-10-01 00:00:00
abstract::An optimized repeated-fed-batch fermentation process for the synthesis of dihydroxyacetone (DHA) from glycerol utilizing Gluconobacter oxydans is presented. Cleaning, sterilization, and inoculation procedures could be reduced significantly compared to the conventional fed-batch process. A stringent requirement was tha...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-003-0338-9
更新日期:2003-12-01 00:00:00
abstract::Biodiesel production from microalgae depends on the biomass concentration and lipid content in microalgal cells. Photobioreactors (PBRs) facilitates cultivation of microalgae and renders better process control than open systems. However, reactor configuration and consequential hydrodynamics considerably influence biom...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-020-02342-4
更新日期:2020-08-01 00:00:00
abstract::Oxygen supply is crucial in industrial application of microbial systems, such as Corynebacterium glutamicum, but oxygen transfer is often neglected in early strain characterizations, typically done under aerobic conditions. In this work, a new procedure for oxygen transfer screening is presented, assessing the impact ...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-014-1234-1
更新日期:2014-12-01 00:00:00
abstract::We propose an adaptive control law that allows one to identify unstable steady states of the open-loop system in the single-species chemostat model without the knowledge of the growth function. We then show how one can use this control law to trace out (reconstruct) the whole graph of the growth function. The process ...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-013-0912-8
更新日期:2013-10-01 00:00:00
abstract::L-arabinose isomerase (L-AI) (EC 5. 3. 1. 4. L-AI) that mediates the isomerization of D-galactose to D-tagatose was isolated from Lactobacillus brevis (MF 465792), and was further purified and characterized. Pure enzyme with molecular weight of 60.1 kDa was successfully obtained after the purification using Native-PAG...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-018-2018-9
更新日期:2019-01-01 00:00:00
abstract::Gamma-aminobutyric acid (GABA) production by free and Ca-alginate encapsulated cells of Enterococcus faecium CFR 3003 was investigated. Mass transfer rates characterizing the GABA production process using encapsulated cells were investigated. Experiments were performed to investigate external film and internal pore di...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-014-1296-0
更新日期:2015-03-01 00:00:00
abstract::Laccases are very interesting biocatalysts of recognized importance for several industrial applications. Its production by Trametes versicolor, a white-rot fungus, was induced by a combination of cotton gin wastes (1%), a lignocellulosic waste, and vinasse (15%), an industrial by-product from sugarcane industry. The u...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-019-02245-z
更新日期:2020-03-01 00:00:00
abstract::A two-phase dispersion technique, termed emulsification-internal gelation, is proposed for encapsulation of activated sludge in gellan gum microbeads. The influence of emulsion parameters on size distribution of microbeads was investigated. Mean diameter of microbeads varied within a range of 34-265 microm as a descen...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-004-0360-6
更新日期:2004-07-01 00:00:00
abstract::Economical production of xylanase and three cellulases, endo-β-1,4-glucanase (CMCase), exo-β-1,4-glucanase (FPase), β-glucosidase (BGL) was studied in submerged fermentation using cane molasses medium. A statistical optimization approach involving Plackett-Burman design and response surface methodology (RSM) resulted ...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-015-1502-8
更新日期:2016-01-01 00:00:00
abstract::The performance of enriched sludge augmented with the B21 strain of Alcaligenes defragrans was compared with that of enriched sludge, as well as with pure Alcaligenes defragrans B21, in the context of a sulfur-oxidizing denitrification (SOD) process. In synthetic wastewater treatment containing 100-1,000 mg NO3-N/L, t...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-007-0115-2
更新日期:2007-05-01 00:00:00
abstract::The effects of light, pH and organic carbon sources were investigated on hydrogen production by algae. An optical fiber was examined as an internal light source. The optical fiber rendered prolonged lag time and total time of hydrogen production. The optimal pH to produce hydrogen for Chlorella sp. was 8.0. Glucose, f...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-012-0819-9
更新日期:2013-07-01 00:00:00
abstract::Nanotechnology is a rapidly developing field because of its wide range of applications in science, nanoscience and biotechnology. Nanobiotechnology deals with nanomaterials synthesised or modified using biotechnology. Fungi are used to synthesise metal nanoparticles and they have vast applications in wound healing, pa...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章,评审
doi:10.1007/s00449-017-1846-3
更新日期:2018-01-01 00:00:00
abstract::Microbial lipid produced using yeast fermentation with inexpensive carbon sources such as lignocellulosic hydrolyzate can be an alternative feedstock for biodiesel production. Several inhibitors that can be generated during acid hydrolysis of lignocellulose were added solely or together into the culture medium to stud...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-012-0684-6
更新日期:2012-08-01 00:00:00
abstract::Food safety is a global health and socioeconomic concern since many people still suffer from various acute and life-long diseases, which are caused by consumption of unsafe food. Therefore, ensuring safety of the food is one of the most essential issues in the food industry, which needs to be considered during not onl...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章,评审
doi:10.1007/s00449-019-02256-w
更新日期:2020-04-01 00:00:00
abstract::This study aimed to assess the variability in respect of titer and properties of xylanase from Trichoderma reesei SAF3 under both solid-state and submerged fermentation. SSF was initially optimized with different agro-residues and among them wheat bran was found to be the best substrate that favored maximum xylanase p...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-012-0761-x
更新日期:2013-01-01 00:00:00
abstract::Complementary DNA (cDNA) encoding the new versatile peroxidase from the ligninolytic basidiomycete Pleurotus eryngii has been expressed in the ascomycete Emericella nidulans. In recombinant E. nidulans cultures, the pH reached values as high as 8.3, correlating with a sharp decrease in peroxidase activity. Peroxidase ...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-004-0365-1
更新日期:2004-10-01 00:00:00
abstract::Experiments carried out with the dissolved oxygen tension (DOT) maintained during fermentation at 0, 10, 50, 70 and 100% showed a direct effect of the dissolved oxygen levels on weissellin A production with no correlative increase on biomass. An estimate of the yield of weissellin A per gram biomass revealed the 50% D...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-012-0689-1
更新日期:2012-08-01 00:00:00
abstract::A novel suspended carrier with porous surface was firstly prepared by coating a sponge on the inside and outside of a hard polyethylene ring. Herein the effects of the sponge thickness (0, 2, 4, 6 mm) and pore size (17, 45, 85 pores per inch, ppi) on the performance of the start-up stage in moving bed biofilm reactor ...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-014-1266-6
更新日期:2015-02-01 00:00:00
abstract::This study evaluated an anaerobic fluidized bed reactor to produce hydrogen from sugarcane molasses of 25 g-COD L-1. The reactor of 1.2 L working volume contained shredded tires as support material. The inoculum was sludge obtained in a UASB reactor of a sewage treatment plant. The AFBR was operated at hydraulic reten...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-020-02443-0
更新日期:2020-09-26 00:00:00
abstract::Twenty-nine actinobacterial strains were isolated from marine sponge Spongia officinalis and screened for antagonistic activity against various bacterial and fungal pathogens. The active antibiotic producer MAPS15 was identified as Streptomyces sp. using 16S rRNA phylogenetic analysis. The critical control factors wer...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-013-1023-2
更新日期:2014-03-01 00:00:00
abstract::Broken rice, pretreated by enzymatic extrusion liquefaction, was used to produce Chinese rice wine by simultaneous saccharification and fermentation (SSF) process in this study. The study compared the novel process and traditional process for Chinese rice wine fermentation utilizing broken rice and head rice, respecti...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-012-0868-0
更新日期:2013-08-01 00:00:00
abstract::A highly efficient β-1,4-mannanase-secreting strain, Pholiota adiposa SKU0714, was isolated and identified on the basis of its morphological features and sequence analysis of internal transcribed spacer rDNA. P. adiposa β-1,4-mannanase was purified to homogeneity from P. adiposa culture supernatants by one-step chroma...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-014-1156-y
更新日期:2014-09-01 00:00:00
abstract::The sequence-characterized amplified region (SCAR) marker for simultaneous identification of Miscanthus sacchariflorus, Miscanthus sinensis, and Miscanthus x giganteus was developed. In this study, it was attempted for the first time to develop the SCAR marker for detecting the molecular phenotypes among Miscanthus sp...
journal_title:Bioprocess and biosystems engineering
pub_type: 杂志文章
doi:10.1007/s00449-011-0592-1
更新日期:2012-01-01 00:00:00