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You searched for: Journal Bioprocess and biosystems engineering Remove constraint Journal: Bioprocess and biosystems engineering Publication Year 2011 Remove constraint Publication Year: 2011 Source 2011 v.34 no.3 Remove constraint Source: 2011 v.34 no.3 Subject culture media Remove constraint Subject: culture media
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1. Process performance of parallel bioreactors for batch cultivation of Streptomyces tendae

Author:
Hortsch, Ralf; Krispin, Harald; Weuster-Botz, Dirk
Source:
Bioprocess and biosystems engineering 2011 v.34 no.3 pp. 297-304
ISSN:
1615-7591
Subject:
Streptomyces tendae; bioreactors; containers; culture media; engineering; liquid state fermentation; oxygen; viscosity
Abstract:
... Batch cultivations of the nikkomycin Z producer Streptomyces tendae were performed in three different parallel bioreactor systems (milliliter-scale stirred-tank reactors, shake flasks and shaken microtiter plate) in comparison to a standard liter-scale stirred-tank reactor as reference. Similar dry cell weight concentrations were measured as function of process time in stirred-tank reactors and sh ...
DOI:
10.1007/s00449-010-0471-1

2. Single step concomitant concentration, purification and characterization of two families of lipopeptides of marine origin

Author:
Sivapathasekaran, C.; Mukherjee, Soumen; Sen, Ramkrishna; Bhattacharya, Biyash; Samanta, Ramapati
Source:
Bioprocess and biosystems engineering 2011 v.34 no.3 pp. 339-346
ISSN:
1615-7591
Subject:
bacteria; biosurfactants; culture media; desorption; infrared spectroscopy; ionization; lipopeptides; micelles; spectral analysis; ultrafiltration
Abstract:
... The extracellular biosurfactant product secreted by a marine bacterium was concentrated and purified directly from the fermentation broth in a single step by ultrafiltration (UF) employing YM 30 kDa (UF-I) and Omega 10 kDa (UF-II) polyethersulfone membranes. The optimum operating pressure required for both membranes, UF-I and UF-II, were found to be 30 and 35 psi, respectively. The biosurfactant f ...
DOI:
10.1007/s00449-010-0476-9