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You searched for: 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

3. Genotypic difference in the inhibition of photosynthesis and chlorophyll fluorescence by salinity and cadmium stresses in wheat

Author:
Shafi, M.; Bakht, J.; Razuddin,; Hayat, Y.; Zhang, G. P.
Source:
Journal of plant nutrition 2011 v.34 no.3 pp. 315-323
ISSN:
1532-4087
Subject:
acclimation; biomass; cadmium; carbon dioxide; chlorophyll; culture media; fluorescence; genotype; photosynthesis; roots; salinity; shoots; sodium chloride; stomatal conductance; wheat
Abstract:
... The effects of salinity (0, 75, 150 mM) and cadmium (Cd) (0, 2, 4 μM) stresses on biomass (dry matter), photosynthesis, and fluorescence parameters were studied in hydroponically-grown wheat genotypes (‘Bakhtawar-92’, ‘Pir Sabak-85’ and ‘Khyber-87’). Cadmium and sodium chloride (NaCl) alone significantly reduced dry matter weight of both shoots and roots, and the combined stress of NaCl + Cd resul ...
DOI:
10.1080/01904167.2011.536874