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 and surface roughness, which is beneficial to the microorganism attachment and growth. It shows that microorganisms grow faster on polypyrrole-modified anode than on unmodified anode. It takes ca. 5 days for polypyrrole-modified anode to reach a reproducible voltage platform, while it takes 11 days for unmodified anode. Moreover, the maximum power density of microbial fuel cells with polypyrrole-modified anode was 919 mW m-2, which were 2.3 times of that with unmodified anode. This research revealed that polypyrrole modification can improve the start-up performance of microbial fuel cells. It is considered as a feasible, economical and sustainable anode.
journal_name
Bioprocess Biosyst Engjournal_title
Bioprocess and biosystems engineeringauthors
Pu KB,Lu CX,Zhang K,Zhang H,Chen QY,Wang YHdoi
10.1007/s00449-019-02238-ysubject
Has Abstractpub_date
2020-03-01 00:00:00pages
429-437issue
3eissn
1615-7591issn
1615-7605pii
10.1007/s00449-019-02238-yjournal_volume
43pub_type
杂志文章abstract：:L-Lysine is an essential amino acid that can be produced by chemical processes from fossil raw materials, as well as by microbial fermentation, the latter being a more efficient and environmentally friendly procedure. In this work, the production process of L-lysine-HCl is studied using a systematic approach based on ...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-017-1766-2
更新日期：2017-07-01 00:00:00
abstract：:Microalgal carotenoids are attractive health ingredients, but their production should be optimized to improve cost-effectiveness. Understanding cellular physiology centered on carotenoid synthesis is the prerequisite for this work. Therefore, systematic correlation analyses were conducted among chlorophyll, carotenoid...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-018-1957-5
更新日期：2018-09-01 00:00:00
abstract：:A biosurfactant producing microbe isolated from a river bank was identified as Lysinibacillus fusiformis S9. It was identified with help of biochemical tests and 16S rRNA gene phylogenetic analysis. The biosurfactant S9BS produced was purified and characterized as glycolipid. The biosurfactant showed remarkable inhibi...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-013-0976-5
更新日期：2014-02-01 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：:Amano lipase AK from P. fluorescens was immobilized on different types of chitosan-containing supports. Chitosan lower molecular weight (2.5%), chitosan lower molecular weight/sodium alginate (2.5%/2.5%) and chitosan lower molecular weight/carrageenan (2.5%/2.5%) allowed the highest values of immobilization yields (IY...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-020-02487-2
更新日期：2021-01-03 00:00:00
abstract：:UV photolysis was used to relieve inhibition of biomass growth by sulfadiazine (SD), a broad-spectrum anti-microbial. To investigate the effects of SD on biomass growth, three substrates-glucose alone (G), glucose plus sulfadiazine (G+SD), and glucose plus photolyzed SD (G+PSD)-were used to culture the bacteria acclim...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-014-1335-x
更新日期：2015-05-01 00:00:00
abstract：:Changes in the microbial community of an enhanced biological phosphorus removal (EBPR) activated sludge system under different influent phosphorus/carbon (P/C) ratio conditions were investigated through evaluation of population respiratory quinone profiles. A total of 13 types of respiratory quinone homologs consistin...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-006-0065-0
更新日期：2006-08-01 00:00:00
abstract：:Enzymatic modification of starch using long chain fatty acid makes it thermoplastic suitable for a myriad of industrial applications. An industrial lipase preparation produced by Burkholderia cepacia (lipase PS) was used for modification of cassava starch with two acyl donors, lauric acid and palmitic acid. Reactions ...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-006-0060-5
更新日期：2006-06-01 00:00:00
abstract：:We used an aqueous leaf extract of Camellia sinensis to synthesize Ag nanoparticles (AgNPs). A layer of ca. 6 nm around a group of the AgNPs in which the inner layer is bound to the AgNPs surface via the hydroxyl groups of catechin has been observed. TEM analysis of AgNPs showed the formation of truncated triangular n...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-013-1094-0
更新日期：2014-07-01 00:00:00
abstract：:Saline waste water from demineralization of cheese whey was used as the main component of waste saline medium (WSM) for cultivation of thraustochytrids. The suitability of WSM for cultivation of Schizochytrium limacinum PA-968 and Japonochytrium marinum AN-4 was evaluated by comparison with cultivation on nutrient med...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-016-1707-5
更新日期：2017-03-01 00:00:00
abstract：:A self-designed novel solid-state fermentation (SSF) bioreactor named "gas double-dynamic solid-state fermentation bioreactor (GDSFB)" showed great success in processes for the production of several valuable products. For the present study, a simple GDSFB (2 L in volume) was designed to investigate the impact of exhau...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-013-0950-2
更新日期：2013-11-01 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：:(R)-2-hydroxy-4-phenylbutyric acid (R-HPBA) is a valuable intermediate for the synthesis of angiotensin-converting enzyme inhibitors. The asymmetric reduction of 2-oxo-4-phenylbutyric acid (OPBA) by oxidoreductases is an efficient approach for its synthesis. Here, we report a novel biocatalytic approach for asymmetric...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-018-1965-5
更新日期：2018-09-01 00:00:00
abstract：:Existing models for bacteriophage adsorption are modified with the addition of a new term, adsorption efficiency, and applied to a T4-Escherichia coli system. The adsorption efficiency is the fraction of phage that adsorbs irreversibly to the host. Adsorption kinetics were modeled using the adsorption rate constant(k)...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-009-0405-y
更新日期：2010-09-01 00:00:00
abstract：:Ginsenoside compound K (CK) with a wide range of pharmacological activities has been widely used in the healthcare product industry. However, the application of CK is limited by low productivity and difficult separation. The purpose of this study is to convert ginsenoside Rb1 into CK by improving conversion efficiency...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-020-02314-8
更新日期：2020-07-01 00:00:00
abstract：:Large continuous flow bioreactors are often under the influence of noise in the feed stream(s). Prior removal of noise is done by filters based either on specific algorithms or on artificial intelligence. Neither method is perfect. Hybrid filters combine both methods and thereby capitalize on their strengths while min...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-007-0113-4
更新日期：2007-05-01 00:00:00
abstract：:The present study aimed to determine the degradation and transformation of three-ring PAHs phenanthrene and anthracene by Cryptococcus sp. MR22 and Halomonas sp. BR04 under halophilic conditions. The growth progress of Cryptococcus sp. MR22 and Halomonas sp. BR04 on anthracene and phenanthrene was monitored by colony-...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-020-02415-4
更新日期：2020-12-01 00:00:00
abstract：:The novel magnetic nanobeads with epoxy groups on the surface were prepared from glycidyl methacrylate (GMA), ethylene glycol dimethacrylate (EGDMA) and hydroxyethyl methacrylate (HEMA) via emulsifier-free emulsion polymerisation, and they were characterized by scanning electron microscopy and vibrating sample magneto...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-012-0716-2
更新日期：2012-10-01 00:00:00
abstract：:The objective of this study was to evaluate ethanol production and bioadsorption with four red seaweeds, Gelidium amansii, Gracilaria verrucosa, Kappaphycus alvarezii and Eucheuma denticulatum. To produce ethanol, thermal acid hydrolysis, enzymatic saccharification and fermentation was carried out. After pretreatment,...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-016-1571-3
更新日期：2016-06-01 00:00:00
abstract：:High amounts of outer membrane (OM) components were released in glucose-limited fed-batch (GLFB) cultures at 37 degrees C at specific growth rates approaching 0.05 h(-1). Endotoxin analyses from a 20 degrees C GLFB culture gave similar results. An alternative fermentation technique, the temperature-limited fed-batch (...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-004-0377-x
更新日期：2005-04-01 00:00:00
abstract：:Vitamin B12 is a crucial fine chemical that is widely used in the pharmaceutical, food and chemical industries, and its production solely dependents on microbial fermentation. We previously constructed an artificial vitamin B12 biosynthesis pathway in Escherichia coli, but the yield of the engineered strains was low. ...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-020-02355-z
更新日期：2020-10-01 00:00:00
abstract：:Biological synthesis of succinic acid at low pH values was favored since it not only decreased investment cost but also simplified downstream purification process. In this study, the feasibility of using glutamate decarboxylase system to improve succinic acid production of Escherichia coli AFP111, a succinate-producin...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-016-1720-8
更新日期：2017-04-01 00:00:00
abstract：:Several carbon sources were investigated for the production of 1,3-propanediol (PDO) and 2,3-butanediol (BDO) simultaneously, using an isolated indigenous Klebsiella sp. Ana-WS5. The results indicate that glycerol is a suitable carbon source for both BDO and PDO production. Further investigation suggests that adjustme...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-013-1008-1
更新日期：2014-03-01 00:00:00
abstract：:Bacteria from Patagonian Merino wool were isolated to assess their wool-keratinolytic activity and potential for felt-resist treatments. Strains from Bacillus, Exiguobacterium, Deinococcus, and Micrococcus produced wool-degrading enzymes. Bacillus sp. G51 showed the highest wool-keratinolytic activity. LC-MS/MS analys...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-017-1748-4
更新日期：2017-06-01 00:00:00
abstract：:Selected biodegradable municipal solid waste fractions were subjected to fifteen different pre-hydrolysis treatments to obtain the highest glucose yield for bio-ethanol production. Pre-hydrolysis treatments consisted of dilute acid (H(2)SO(4), HNO(3) or HCl, 1 and 4%, 180 min, 60 degrees C), steam treatment (121 and 1...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-007-0114-3
更新日期：2007-05-01 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：:Long-term and excessive use of monocrotophos (MPs) pesticide leads to an accumulation of MPs residues in agricultural products. Electrochemical biosensor technology was developed as a simple and efficient method for detecting MPs. However, commercial acetylcholinesterase (AChE) sensors are not applied in practical MPs...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-019-02226-2
更新日期：2020-02-01 00:00:00
abstract：:Lignocellulosic biomass can be considered as one of the largest sources for the production of renewable biofuels (bioethanol). It involves an enzymatic treatment capable of ensuring the depolymerization of cellulose into fermentable sugars, followed by the production of ethanol by appropriate bacteriological fermentat...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章,评审
doi：10.1007/s00449-020-02297-6
更新日期：2020-06-01 00:00:00
abstract：:Calcitriol is an important drug used for treating osteoporosis, which can be produced from vitamin D3. The current method of producing calcitriol from vitamin D3 during cultivation of microbial cells results in low yields of calcitriol and high purification costs. Therefore, in this study, the steps of cell cultivatio...
journal_title：Bioprocess and biosystems engineering
pub_type： 杂志文章
doi：10.1007/s00449-015-1368-9
更新日期：2015-07-01 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
