Cultivation of protocorms of Dendrobium candidum in air-lift bioreactors

2012 ◽  
Keyword(s):  
Dendrobium Candidum ◽  
Air Lift

Effect of Dye Concentration on Adsorption Efficiency in the Air-Lift Reactor

2007 ◽  
Vol 22 (3) ◽  
pp. 447-458
Author(s):  
Urszula Filipkowska ◽  
Aneta Hołownia-Kosak
Keyword(s):  
Adsorption Efficiency ◽  
Air Lift Reactor ◽  
Air Lift

scholarly journals The theory of the air-lift pump

1895 ◽  
Vol 140 (1) ◽  
pp. 32-52 ◽  
Author(s):  
Elmo G. Harris
Keyword(s):  
Air Lift

Design correlations of an air-lift tube reactor

1995 ◽  
Vol 9 (2) ◽  
pp. 101-109 ◽  
Author(s):  
J.G. Majeed ◽  
E. Békásy-Molnár
Keyword(s):  
Tube Reactor ◽  
Air Lift

Characterization of an A-type cyclin-dependent kinase gene from Dendrobium candidum

Biologia ◽  
2012 ◽  
Vol 67 (2) ◽  
Author(s):  
Gang Zhang ◽  
Chao Song ◽  
Ming-Ming Zhao ◽  
Biao Li ◽  
Shun-Xing Guo
Keyword(s):  
Molecular Mechanisms ◽  
Three Dimensional ◽  
Postembryonic Development ◽  
Kinase Domain ◽  
Dimensional Structure ◽  
Pcr Analysis ◽  
Kinase Gene ◽  
Multiple Sequence ◽  
Dendrobium Candidum ◽  
Rapid Amplification

AbstractCyclin-dependent kinases (CDKs) play an essential role in cell cycle regulation during the embryonic and postembryonic development of organisms. To better understand the molecular mechanisms of CDKs involved in embryogenesis regulation in the endangered medicinal plant Dendrobium candidum Wall. ex Lindl., a 1229-bp full-length cDNA of an A-type CDK gene, Denca;CDKA;1, was identified using 3′ rapid amplification of cDNA end (RACE) PCR. Denca;CDKA;1 was predicted to encode a 294 amino acid residue-long protein of 33.76 kDa with an isoelectric point of 7.72. The deduced Denca;CDKA;1 protein contained a conserved serine/threonine-protein kinase domain (S-TKc) and a canonical cyclinbinding “PSTAIRE” motif. Multiple sequence alignment indicated that members of CDKA family from various plants exhibited a high degree of sequence identity ranging from 82% to 93%. A neighbor-joining phylogenetic tree showed that Denca;CDKA;1 was clustered into the plant group and was distant from the animal and fungal groups. The modeled three-dimensional structure of Denca;CDKA;1 exhibited the similar functional structure of a fold consisting of β-sheets and α-helices joined by discontinuous random coils forming two relatively independent lobes. Quantitative real-time PCR analysis revealed that Denca;CDKA;1 transcripts were the most abundant in protocorm-like bodies with 4.76 fold, followed by that in roots (4.19 fold), seeds (2.57 fold), and stems (1.57 fold). This study characterized the novel Denca;CDKA;1 gene from D. candidum for the first time and the results will be useful for further functional determination of the gene.

Ozonation combined with ultrasound for the degradation of tetracycline in a rectangular air-lift reactor

2012 ◽  
Vol 84 ◽  
pp. 138-146 ◽  
Author(s):  
Yan Wang ◽  
Hui Zhang ◽  
Lu Chen ◽  
Sheng Wang ◽  
Daobin Zhang
Keyword(s):  
Air Lift Reactor ◽  
Air Lift

The Effect of Air Injector on the Performance of Airlift

2012 ◽  
Vol 516-517 ◽  
pp. 1022-1027 ◽  
Author(s):  
Dong Hu ◽  
Chuan Lin Tang ◽  
Feng Hua Zhang
Keyword(s):  
Flow Rate ◽  
Marked Effect ◽  
Pipe Wall ◽  
Tangential Direction ◽  
Air Injection ◽  
Air Flow Rate ◽  
Injection Angle ◽  
Injection Methods ◽  
The One ◽  
Air Lift

In order to investigate the air injection method on the performance of an airlift. For this purpose an air lift system with a riser 2000 mm long and 80 mm in diameter, was designed and tested. Seven different air injection methods were used at a constant submergence. The experimental results showed a marked effect on the airlift performance when operated with different air injection methods. The arrangement of five nozzles gives the best performance, and the one nozzle is the worst. Although the injection angle has a little effect on the airlift performance, but view the general conclusions as a whole, the best lifting efficiency can be obtained when the angle of the nozzle placed along the tangential direction of pipe wall is equal to 10º at a given air flow rate QG =37m3/h.

Xanthan production in bubble column and air-lift reactors

1992 ◽  
Vol 39 (1) ◽  
pp. 85-94 ◽  
Author(s):  
Ii-Soon Suh ◽  
Adrian Schumpe ◽  
Wolf-Dieter Deckwer
Keyword(s):  
Bubble Column ◽  
Xanthan Production ◽  
Air Lift

7. Air-lift pumps

2006 ◽  
pp. 141-162
Author(s):  
Peter Fraenkel ◽  
Jeremy Thake
Keyword(s):  
Air Lift
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