Abstract:
:The production of biodiesel by transesterification employing acid or base catalyst has been industrially accepted for its high conversion and reaction rates. Downstream processing costs and environmental problems associated with biodiesel production and byproducts recovery have led to the search for alternative production methods. Recently, enzymatic transesterification involving lipases has attracted attention for biodiesel production as it produces high purity product and enables easy separation from the byproduct, glycerol. The use of immobilized lipases and immobilized whole cells may lower the overall cost, while presenting less downstream processing problems, to biodiesel production. The present review gives an overview on biodiesel production technology and analyzes the factors/methods of enzymatic approach reported in the literature and also suggests suitable method on the basis of evidence for industrial production of biodiesel.
journal_name
Biotechnol Lettjournal_title
Biotechnology lettersauthors
Bisen PS,Sanodiya BS,Thakur GS,Baghel RK,Prasad GBdoi
10.1007/s10529-010-0275-zsubject
Has Abstractpub_date
2010-08-01 00:00:00pages
1019-30issue
8eissn
0141-5492issn
1573-6776journal_volume
32pub_type
杂志文章,评审abstract::KGLP-1, a 31-amino acid glucagon-like peptide-1 (GLP-1) analogue, has a great therapeutic potential for anti-diabetes. In this work, a strategy for expression and purification of functional KGLP-1 peptide has been established. KGLP-1 cDNA was fused with glutathione S-transferase (GST), with an enterokinase cleavage si...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-014-1526-1
更新日期:2014-08-01 00:00:00
abstract::Alginate production by Azotobacter vinelandii growing in chemostat cultures was evaluated under different O(2) transfer rates (OTR). As a result of modifying the culture's agitation rate from 300 to 500 rpm, the OTR increased from 9 to 15.1 mmol l(-1) h(-1) and a slight variation in the alginate production (1.7-2.2 g ...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-009-9949-9
更新日期:2009-06-01 00:00:00
abstract::The addresses given for the authors of this paper were incorrect. The correct assignments of the authors are given in this erratum. ...
journal_title:Biotechnology letters
pub_type: 杂志文章,已发布勘误
doi:10.1007/s10529-017-2496-x
更新日期:2018-01-01 00:00:00
abstract::Growth of Streptococcus zooepidemicus in a 10 l bioreactor with 50 g sucrose/l and 10 g casein hydrolysate/l gave 5-6 g hyaluronic acid/l after 24-28 h. Purification of hyaluronic acid gave a recovery of 65% with the final material having an Mr of approximately 4 x 10(6) Da with less than 0.1% protein. ...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-007-9562-8
更新日期:2008-03-01 00:00:00
abstract::An endoxylanase gene, xynA, was cloned from Bacillus pumilus ARA and expressed in Escherichia coli. The open reading frame of the xynA gene was 687 bp encoding a signal peptide and a mature xylanase with a molecular mass of 23 kDa. The enzyme was categorized as a glycosyl hydrolase family 11 member based on the sequen...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-011-0568-x
更新日期:2011-07-01 00:00:00
abstract:OBJECTIVE:In this study, we aimed to maximize glutathione (GSH) production by a metabolically engineered Yarrowia lipolytica strain using a small-scale optimization approach. RESULTS:A three levels four factorial Box-Behnken Design was used to assess the effect of pH, inulin extract, yeast extract and ammonium sulfate...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-020-03039-0
更新日期:2021-02-01 00:00:00
abstract::Lymphotactin-XCL1 is a chemokine produced mainly by activated CD8+ T-cells and directs migration of CD4+ and CD8+ lymphocytes and natural killer (NK) cells. We expressed human lymphotactin (LTN) by the lactic-acid bacterium Lactococcus lactis. Biological activity of LTN was confirmed by chemo-attraction of human T-cel...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-008-9855-6
更新日期:2009-02-01 00:00:00
abstract::Avian myeloblastosis virus reverse transcriptase (AMV RT) is a heterodimer consisting of a 63 kDa α-subunit and a 95 kDa β subunit. Moloney murine leukaemia virus reverse transcriptase (MMLV RT) is a 75 kDa monomer. These two RTs are the most extensively used for conversion of RNA to DNA. We previously developed sever...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-012-0904-9
更新日期:2012-07-01 00:00:00
abstract:OBJECTIVE:To develop a peptide probe that could be used for gastric cancer detection via binding to CD44 protein with specificity and affinity. RESULTS:A 12-mer phage peptide library was screened against immobilized CD44 protein. Bound phage counts using ELISA were performed to identify phage clones carrying the most ...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-015-1896-z
更新日期:2015-11-01 00:00:00
abstract:OBJECTIVES:To identify and characterize a novel antimicrobial peptide, catesbeianin-1. RESULTS:Catesbeianin-1 is 25 amino acids long and is α-helical, cationic and amphipathic. It had antimicrobial activity against Gram-positive and Gram-negative bacteria. It was resistant against trypsin and pepsin. Catesbeianin-1 ex...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-017-2312-7
更新日期:2017-06-01 00:00:00
abstract::Cell adhesion to extracellular matrices, including fibronectin, results in clustering of integrins in focal adhesions. To promote the clustering of fibronectin and thus enhance its activity at the sites of focal adhesion formation, we have engineered a fusion protein containing recombinant fibronectin fragment (hFN) c...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-005-6101-3
更新日期:2005-06-01 00:00:00
abstract::Some pest management programs employ PCR to identify cry1 genes from Bacillus thuringiensis to predict bacterial toxicity towards different insect pests. However, due to changes on the mode of action of the Cry proteins, new primers had to be designed to detect the new genes. Therefore, an 'in-silico' study of genetic...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-009-0088-0
更新日期:2009-12-01 00:00:00
abstract::Arylomycins are type I signal peptidase inhibitors and have a potential as a new type of antibiotics. They were identified from the broth of Streptomyces sp. HCCB10043. The arylomycin biosynthetic gene cluster in this strain was identical to that in S. roseosporus. Within the gene cluster, aryC, encoding a P450 enzyme...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-012-1032-2
更新日期:2012-12-01 00:00:00
abstract::Electrotransformation of Thermoanaerobacter ethanolicus JW200 was achieved using the plasmid, pTE16, and a pUC-based suicide vector, pTEA2. The construct pTE16 is based on the Escherichia coli-Clostridium perfringens shuttle vector pJIR715 and contains a thermostable chloramphenicol (Cm) resistance cassette. Evidence ...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-006-9184-6
更新日期:2006-12-01 00:00:00
abstract::Interactions between ectomycorrhizal fungi (Suillus laricinus, S. tomentosus, Amanita vaginata and Gomphidius viscidus) and the pathogen Rhizoctonia solani in co-culture were studied using both light and scanning electron microscopy. S. laricinus, S. tomentosus and A. vaginata inhibited the growth of the pathogen. Mor...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-008-9760-z
更新日期:2008-10-01 00:00:00
abstract::The substrate specificity of alpha-chymotrypsin and other serine proteases, trypsin, elastase, proteinase K and subtilisin, towards hydrolysis of various polyesters was examined using poly(L-lactide) (PLA), poly(beta-hydroxybutyrate) (PHB), poly(ethylene succinate) (PES), poly(ethylene adipate) (PEA), poly(butylene su...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-005-2217-8
更新日期:2005-04-01 00:00:00
abstract:OBJECTIVES:The action modes of an endocellulase, EGA, and its domains (CD9 and CBM3) during enzymatic treatment of cotton fabrics were investigated. RESULTS:EGA, CD9 and CBM3 had the binding capacity to cellulose substrates, of which the filter paper was the substrate with the strongest binding capacity. Analyses of s...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-015-1832-2
更新日期:2015-08-01 00:00:00
abstract:OBJECTIVES:Interactions of cells with their neighbors and influences by the surrounding extracellular matrix (ECM) is reflected in a cells transcriptome and proteome. In tissues comprised of heterogeneous cell populations or cells depending on ECM signalling cues such as those of the intervertebral disc (IVD), this inf...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-020-02997-9
更新日期:2021-01-01 00:00:00
abstract::Degradation of lignocellulose with pressurised hot water is an efficient method of bioethanol production. However, the resultant solution inhibits ethanol fermentation by Saccharomyces cerevisiae. Here, we first report that glycolaldehyde, which is formed when lignocellulose is treated with pressurised hot water, inhi...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-010-0437-z
更新日期:2011-02-01 00:00:00
abstract::N(omega)-2,2,4,6,7-Pentamethyldihydrobenzofuran-5-sulfonyl (N(omega)-Pbf)-protected oligoarginine was directly conjugated to poly(amino acid) derivatives modified with a long alkyl chain. The final concentration of conjugated peptides was easily controlled by the feed ratio of oligoarginine to polymer backbone and a f...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-005-7838-4
更新日期:2005-07-01 00:00:00
abstract::Aerobic granules for sulphide and ammonium removal were cultivated in a sequencing batch reactor, and the microbial community of the aerobic granules was investigated by denaturing gradient gel electrophoresis. The loading rate increased from 0.15 to 0.9 kg S2− m−3 d−1, and the removal efficiencies of sulphide, chemic...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-012-0857-z
更新日期:2012-05-01 00:00:00
abstract::The genes involved in the biosynthetic pathway of ectoine (2-methyl-1,4,5,6-tetrahydropyrimidine-4-carboxylic acid) from Bacillus halodurans were cloned as an operon and expressed in E. coli. Analysis of the deduced ectoine biosynthesis cluster amino acid sequence revealed that the ectoine operon contain 2,389 bp, enc...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-008-9688-3
更新日期:2008-08-01 00:00:00
abstract::miR-21 is highly expressed in a variety of cancers, suggesting that it might play a role in the process of oncogenesis, as supported by it directly causing pre-B cell lymphomas in transgenic mice. Rm21LG transgenic mice for the conditional co-expression of miR-21 and luciferase (Luc) mediated by Cre/lox P system were ...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-013-1327-y
更新日期:2014-01-01 00:00:00
abstract::A new aqueous two phase system comprising polyethylene glycol and xanthan is reported together with its phase diagram. The phase composition of the bottom phase did not vary (PEG 1.6-1.8% w/w; xanthan 0.24-0.28% w/w) while that of the top phase varied significantly (PEG 4-5% w/w, xanthan 0.05-1.37% w/w). Unlike conven...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-005-4682-5
更新日期:2006-01-01 00:00:00
abstract::The actinorhizal plant seabuckthorn (Hippophae rhamnoides L., Elaeagnaceae) is a wind pollinated dioecious crop. To distinguish male genotypes from female genotypes early in the vegetative growth phase, we have developed robust PCR-based marker(s). DNA bulk samples from 20 male and 20 female plants each were screened ...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-012-0852-4
更新日期:2012-05-01 00:00:00
abstract::The baculovirus expression vector system (BEVS) is used extensively for the production of proteins from exogenous cDNAs. However, BEVS is not ideal for pharmaceutical production of glycoproteins owing to the properties of the N-glycans in the expressed products and that insect cells lack several of the enzymes require...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-005-8107-2
更新日期:2005-07-01 00:00:00
abstract:OBJECTIVES:To exploit cold-inducible biochemical processes beneficial for foreign mRNA transcription, translation and storage, as well as protein product stability, during Agrobacterium-mediated transient expression. RESULTS:The efficiency of three different 5'-regulatory sequences to achieve transient expression of t...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-017-2336-z
更新日期:2017-07-01 00:00:00
abstract::An extracellular esterase, EstK, was purified from the psychrotrophic bacterium Pseudomonas mandelii grown at 25°C. Prior to harvest, cells were treated with 0.2 M MgCl2 to precipitate lipopolysaccharides in the outer membranes, which otherwise form aggregates with the secreted enzymes. EstK was purified to homogeneit...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-012-0866-y
更新日期:2012-06-01 00:00:00
abstract::Genes coding for Vitreoscilla hemoglobin (VHb) with peroxisome targeting signal (PTS1) tag and beta-galactosidase were co-expressed in Pichia pastoris under the alcohol oxidase1 (AOX1) promoter. The expression of VHb-PTS1 had no positive effect on cell growth but significantly enhanced the whole cell beta-galactosidas...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1023/a:1025072020791
更新日期:2003-09-01 00:00:00
abstract::A new irreversible esterification method for carboxylic acids catalyzed by a lipase from Candida antarctica (Novozyme 435) in organic solvents has been developed. The water produced during the process is chemically destroyed by a corresponding ester of acetoacetate, which acts as a sacrificial substrate in this reacti...
journal_title:Biotechnology letters
pub_type: 杂志文章
doi:10.1007/s10529-007-9632-y
更新日期:2008-05-01 00:00:00