Gas permeability of PTFE tubes

Sytyi, Yu. V.; Molchanov, B. I.; Gudimov, M. M.; Zherdev, Yu. V.; Soshko, A. I.; Golovastov, E. S.; Tynnyi, A. N.; Kalinin, N. G.

doi:10.1007/bf00722419

Cited by 1 publication

(1 citation statement)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the present study, we describe a simple low‐cost μBR with a working volume of 1.5 ml made from PTFE [poly(tetrafluoroethylene)]. PTFE was used as the material of choice because of its low cost and biocompatibility [11]. To assess the performance and effectiveness of the μBR, we used a fast growing organism, Pseudomonas aeruginosa DS10‐129, sampled from sites contaminated with diesel as described by Rahman et al [12–14], as the model organism.…”

Section: Introductionmentioning

confidence: 99%

Production of rhamnolipid biosurfactants by Pseudomonas aeruginosa DS10‐129 in a microfluidic bioreactor

Rahman

Pasirayi

Auger

et al. 2010

Biotech and App Biochem

View full text Add to dashboard Cite

A low-cost microBR (microbioreactor) made from PTFE [poly(tetrafluoroethylene)] was used to cultivate a model organism, Pseudomonas aeruginosa DS10-129. The progress of bioprocessing was monitored by comparing the growth of the organism in a microBR, a conventional bench scale bioreactor and a shake flask. Under the microBR conditions, the organism produced 23 mg/ml of pyocyanin that had antimicrobial effects against Bacillus subtilis, Staphylococcus aureus, Staphylococcus epidermidis, Pseudomonas teessidea and Pseudomonas clemancea. Furthermore, it produced a total of 106 microg/ml of effective biosurfactants consisting of dirhamnolipids (RL2) and monorhamnolipids (RL1). The biosurfactants reduced the surface tension of distilled water from 72 to 27.9 mN/m and emulsified kerosene by 71.30%. The pyocyanin and rhamnolipids were produced during the exponential and stationary phases of growth respectively. The results of the microBR were comparable to those obtained using conventional scale methods.

show abstract

Section: Introductionmentioning

confidence: 99%