Abstract:
:Fermented Monascus pigments have been utilized as traditional Chinese medicine and food colorant for thousands of years. Under the limited nitrogen concentration and/or low initial pH 2.5 conditions, it was observed that production of intracellular pigments and accumulation of microbial lipids (high content reaching to approximately 50% in dry cell weight) by edible Monascus anka exhibited a positive correlated relationship. Extractive fermentation in nonionic surfactant micelle aqueous solution selectively exported the intracellular Monascus pigments into its extracellular broth, in which the concentration of intracellular pigments was negligible while the extracellular one was enhanced. The extractive fermentation provides a novel strategy for shifting of the metabolic channeling from intracellular lipid accumulation to Monascus pigment production. High pigment concentration, i.e., approximately 40 AU of extracellular Monascus pigments, was achieved by extractive fermentation at a relatively high nonionic surfactant concentration 10 g/l. This phenomenon might be attributed to the nonionic surfactant micelles acting as pigment reservoirs by biomimetic of intracellular lipids.
journal_name
J Biotechnoljournal_title
Journal of biotechnologyauthors
Wang B,Zhang X,Wu Z,Wang Zdoi
10.1016/j.jbiotec.2015.08.019subject
Has Abstractpub_date
2015-10-20 00:00:00pages
167-73eissn
0168-1656issn
1873-4863pii
S0168-1656(15)30098-5journal_volume
212pub_type
杂志文章abstract::When subjected to a Picea abies suspension cell culture, beta-pinene, either one of the pure enantiomers or the racemate, was transformed mainly to trans-pinocarveol along with the minor products myrtenol, alpha-terpineol, pinocarvone, myrtenal and cis-pinocarveol. The absolute configuration of the major products corr...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2003.10.009
更新日期:2004-01-22 00:00:00
abstract::An O-methyltransferase SpOMT2884, originating from Streptomyces peucetius ATCC 27952, was cloned, expressed, and applied for the production of target metabolite from Escherichia coli. Biochemical characterization of the 25kDa recombinant protein by in vitro and in vivo experiments showed that SpOMT2884 was an S-adenos...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2014.05.005
更新日期:2014-08-20 00:00:00
abstract::The action of three glycoside hydrolase family GH51 and one GH54 α-arabinofuranosidases (ABFs) was studied on polymeric arabinoxylan and arabinoxylooligosaccharides. The substrates covered all possible arabinofuranosyl (Araf) substituents, i.e., terminal and internal α(1→2) and α(1→3)-linked Araf monosubstitutions and...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2016.04.050
更新日期:2016-07-10 00:00:00
abstract::Anaerobic co-digestion using protein-rich and lipid-rich co-substrates is limited by the accumulation of ammonia and long chain fatty acids (LCFAs), which are important inhibitors of the anaerobic microorganisms. This work aimed to study the microbial community dynamics during gradual and abrupt increase in ammonium a...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2016.01.006
更新日期:2016-02-20 00:00:00
abstract::Pituitary tumor-transforming gene 1 (PTTG1), a proto-oncogene, is associated with tumor formation, proliferation and invasiveness. F-PBF(beta-TrCP), a fusion protein, was produced by replacing the WD40-repeat of F-box protein beta-TrCP with the PTTG1-binding factor (PBF) for targeted degradation of PTTG1. To evaluate ...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2008.09.004
更新日期:2009-01-01 00:00:00
abstract::Spent refinery processing catalyst is listed as a hazardous waste; the toxicity characteristic leaching procedure (TCLP) extracts of the catalyst are found to contain heavy metals at concentrations exceeding the regulated levels. In the present investigation, Aspergillus niger was adapted to single metal ions Ni, Mo o...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2005.07.002
更新日期:2006-01-02 00:00:00
abstract::In vitro display technologies, such as mRNA display and DNA display are powerful tools to screen peptides and proteins with desired functions from combinatorial libraries in the fields of directed protein evolution and proteomics. When screening combinatorial libraries of polypeptides (phenotype), each of which is dis...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2007.07.947
更新日期:2007-09-15 00:00:00
abstract::In the current study, a three-tiered mutagenesis strategy was employed to simultaneously improve the thermostability and activity of halohydrin dehalogenase from Agrobacterium radiobacter AD1 (HheC) by engineering the last ten amino acids (Met245∼Glu254) of its C-terminal region. Initially, truncated mutagenesis resul...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2015.08.013
更新日期:2015-10-20 00:00:00
abstract::Sodium butyrate was used to enhance expression levels and thereby facilitate the generation of analytical quantities of nine different tissue plasminogen activator (tPA) analogues expressed under the control of the cytomegalovirus immediate early (CMV IE) promoter by the Chinese hamster ovary (CHO) mammalian expressio...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/0168-1656(91)90073-5
更新日期:1991-06-01 00:00:00
abstract::In the present investigation, a detailed biochemical analysis of the high H₂ producer D1 protein mutant strain L159I-N230Y of Chlamydomonas reinhardtii, carrying a double amino acid substitution, was made. The leucine residue L159 was replaced by isoleucine, and the N230 asparagine was replaced by tyrosine. The perfor...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2011.06.019
更新日期:2012-02-20 00:00:00
abstract::Starvation is one of the most common forms of stress experienced in the wild life. Such conditions associate the other forms of stress such as acid, heat, oxidation, and so on. Organisms acclimate to such stresses and acquire the stress tolerances, which often trade-off their growth rates. To investigate whether starv...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2018.04.007
更新日期:2018-06-10 00:00:00
abstract::Vigna radiata (mung bean) is an important crop plant and is a major protein source in developing countries. Mung bean 8S globulins constitute nearly 90% of total seed storage protein and consist of three subunits designated as 8SGα, 8SGα' and 8SGβ. The 5'-flanking sequences of 8SGα' has been reported to confer high ex...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2014.01.027
更新日期:2014-03-20 00:00:00
abstract::A hydrogen electrode based on a hydrogenase immobilized on a carbon material has been developed. The equilibrium hydrogen potential was reached in an atmosphere of H2 on the enzyme electrode according to the mechanism of direct exchange of electrons between the electrode and the enzyme active center. The electrochemic...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/0168-1656(93)90095-5
更新日期:1993-02-01 00:00:00
abstract::In the important industrial yeast Saccharomyces cerevisiae, galactose metabolism requires energy production by respiration; therefore, this yeast cannot metabolize galactose under strict anaerobic conditions. While the respiratory dependence of galactose metabolism provides benefits in terms of cell growth and populat...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2016.04.041
更新日期:2016-07-10 00:00:00
abstract::Glutamate dehydrogenase is a central enzyme connecting nitrogen and carbon metabolism via its precursors ammonium and oxoglutarate and its product glutamate. In Corynebacterium glutamicum glutamate dehydrogenase is especially important, since it is a key enzyme for the biotechnological production of the flavour enhanc...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2009.04.007
更新日期:2009-06-15 00:00:00
abstract::Late-embryogenesis abundant (LEA) proteins are a family of hydrophilic proteins that form an integral part of desiccation tolerance of seeds. LEA proteins have been also postulated to play a protective role under different abiotic stresses. Their role in abiotic stress tolerance has been well documented for Group 1, 2...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2008.09.014
更新日期:2009-01-15 00:00:00
abstract::(+)-Nootkatone is a natural ingredient that occurs in grapefruit and certain other plants and is responsible for the characteristic smell of grapefruit. Due to its versatile applications in the flavor and fragrance industry as well as its application in some medical uses it recruits the interests of academic research ...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2019.05.017
更新日期:2019-08-10 00:00:00
abstract::The use of recombinant proteins has increased greatly in recent years, as well as the techniques used for their purification. The selection of an efficient process to purify proteins is a major bottleneck found when trying to scale up results obtained in the laboratory to a large-scale industrial process. One of the m...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2004.02.009
更新日期:2004-06-10 00:00:00
abstract::Each of the twelve enzymes for glycolytic fermentation, eleven from Escherichia coli and one from Saccharomyces cerevisiae, have been over-expressed in E. coli and purified with His-tags. Simple assays have been developed for each enzyme and they have been assembled for fermentation of glucose to ethanol. Phosphorus-3...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2011.09.019
更新日期:2012-01-01 00:00:00
abstract::Artificial microRNA (amiRNA) technology has been applied in Arabidopsis thaliana and other plants to efficiently silence target genes of interest. Here we described a novel approach to construct plant amiRNA expression vectors with seamless enzyme-free cloning (SEFC) and mating-assisted genetically integrated cloning ...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2010.10.078
更新日期:2011-01-10 00:00:00
abstract::Extracts of the medicinal plant Hypericum perforatum are used to treat depression and skin irritation. A major API is hyperforin, characterized by sensitivity to light, oxygen and temperature. Total synthesis of hyperforin is challenging and its content in field-grown plants is variable. We have established in vitro c...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2016.02.016
更新日期:2016-03-20 00:00:00
abstract::Following the discovery of RNA interference (RNAi) and related phenomena, novel regulatory processes, attributable to small non-protein-coding RNAs, continue to emerge. Capitalizing on the ability of artificial short interfering RNAs (siRNAs) to trigger degradation of specific target transcripts, and thereby silence d...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2006.01.003
更新日期:2006-08-05 00:00:00
abstract::Enterokinase, a two-chain duodenal serine protease, activates trypsinogen by removing its N-terminal propeptide. Due to a clean cut after the non-primed site recognition sequence, the enterokinase light chain is frequently employed in biotechnology to separate N-terminal affinity tags from target proteins with authent...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2013.10.022
更新日期:2013-12-01 00:00:00
abstract::The aim of this study was to investigate the effect of micronization on the compound content, crystalline structure and physicochemical properties of fiber from genetically modified (GM) flax. The GM flax was transformed with three bacterial (Ralstonia eutropha) genes coding for enzymes of polyhydroxybutyrate (PHB) sy...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2013.01.002
更新日期:2012-12-15 00:00:00
abstract::Nontypeable Haemophilus influenzae (NTHi) is a gram-negative coccobacillus that is one of the bacteria that form the commensal flora of the upper respiratory tract in humans. This bacterium is an important human pathogen causing a broad spectrum of disease in both adults and children, including invasive and localised ...
journal_title:Journal of biotechnology
pub_type: 杂志文章,评审
doi:10.1016/s0168-1656(99)00113-3
更新日期:1999-08-20 00:00:00
abstract::The vitamin E family consists of 4 tocopherol and 4 tocotrienol compounds. During recent years, tocotrienols have gained increased interest due to their biological activities that are beyond the vitamin E activity. Here we report the engineering of plasmid-free Escherichia coli strains for an efficient synthesis of 2-...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2012.08.010
更新日期:2012-12-15 00:00:00
abstract::Aqueous two-phase systems allow for the unequal distribution of proteins and other molecules in water-rich solutions containing phase separating polymers or surfactants. One approach to improve the partitioning properties of recombinant proteins is to produce the proteins as fused to certain peptide tags. However, the...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/s0168-1656(01)00383-2
更新日期:2002-01-31 00:00:00
abstract::Extracellular enzymes are assumed to be responsible for the initial and rate limiting step in biodegradation of polymers. Mainly enzymes with aliphatic esters as their natural substrates (e.g. lipase, cutinases) have until now been evaluated for polyester hydrolysis studies. However, the potential of enzymes with arom...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2017.01.012
更新日期:2017-09-10 00:00:00
abstract::The volatile fatty acid propionate inhibits anaerobic digestion during organic waste treatments. To examine potential microbial interactions that accelerate propionate oxidation, anaerobic digestion systems seeded with various types of anaerobic sludge were analyzed. Seed samples were collected from 10 different full-...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/j.jbiotec.2015.09.040
更新日期:2015-11-20 00:00:00
abstract::A computer system solution for integration of a distributed bioreactor monitoring and control instrumentation on the laboratory scale is described. Bioreactors equipped with on-line analyzers for mass spectrometry, near-infrared spectroscopy, electrochemical probes and multi-array gas sensors and their respective soft...
journal_title:Journal of biotechnology
pub_type: 杂志文章
doi:10.1016/s0168-1656(03)00121-4
更新日期:2003-08-15 00:00:00