نتایج جستجو برای: temperature 30c to 35c
تعداد نتایج: 10748297 فیلتر نتایج به سال:
In present research exploration, sugar cane bagasse an indigenous waste/by product carbon source was tested as substrate for optimum biosynthesis of xylanase by Aspergillus niger using the submerged fermentation technique. The for xylanase production, thee concentration levels (2.5, 3.0 and 3.5%) of sugar cane bagasse, four different fermentation temperatures (i.e. 25.0, 27.5, 30.0 and 32.5C) a...
In the present work advanced oxidation process, photo-Fenton (UV/H2O2/Fe) system, for the treatment of wastewater contaminated with oil was investigated. The reaction was influenced by the input concentration of hydrogen peroxide H2O2, the initial amount of the iron catalyst Fe, pH, temperature and the concentration of oil in the wastewater. The removal efficiency for the system UV/ H2O2/Fe at ...
Background RNA thermometers are mRNA strands with a temperature dependent secondary structure: depending on the spatial conformation, the mRNA strand can get translated (on-state) or can be inaccessible for ribosomes binding (off-state).These have been found in a number of micro-organisms (mainly pathogens), where they are used to adaptively regulate the gene expression, in response to changes ...
Glass/Nb2O5 and Nb/Nb2O5 electrodes were prepared by electrodeposition and used as anodes for electrochemical degradation of chlorpyrifos (CPF) in aqueous solution. Different operating conditions and factors affecting the treatment process including current density, temperature, initial concentration of chlorpyrifos, pH, conductive electrolyte and time of electrolysis were studied and optimized...
Present study consists the, effect of temperature (10-30C), salinity (15-35 psu) and biofilm on the settlement of Enteromorpha flexousa zoospores. Settlement of zoospores was significantly (p<0.05) influenced by both temperature and salinity. Highest percentage of settlement occurred at 25C and 30 psu respectively. Subsequently the influence of biofilm was evaluated at the optimum 25C and 30 ps...
MiRNA biogenesis is highly regulated at the post-transcriptional level; however, the role of sequence and secondary RNA structure in this process has not been extensively studied. A single G to A substitution present in the terminal loop of pri-mir-30c-1 in breast and gastric cancer patients had been previously described to result in increased levels of mature miRNA. Here, we report that this g...
abstract in first part of this project, the use of a new and biguanid-like catalyst supported on silica as a recyclable catalyst provides a new route for the synthesis of a variety of arylalkylidene rhodanine derivatives through knoevenagle reaction in at present of solvent at room temperature. rhodanine derivatives and especially arylalkylidene rhodanines have proven to be attractive compound...
Chemotherapy resistance frequently drives tumour progression. However, the underlying molecular mechanisms are poorly characterized. Epithelial-to-mesenchymal transition has been shown to correlate with therapy resistance, but the functional link and signalling pathways remain to be elucidated. Here we report that microRNA-30c, a human breast tumour prognostic marker, has a pivotal role in chem...
the freeze-drying process. Continued viability of rehydrated cells during incubation at 37 C for 3 hours was dependent on the composition of the suspending medium. The number of viable organisms decreased greatly when suspended and incubated in water. Several salts were effective in maintaining higher viable cell counts. Maximum recovery of viable cells of one dried preparation rehydrated in ma...
Cell culture from ovarian tissue of healthy female fingerlings Oreochromis niloticus was established with average weight of 20 to 30 gm/female. Three culture media were screened and tested: Leibowitz L-15), Minimum essential medium (MEM) and RPMI 1640 medium. Cells were maintained at 16, 27 or 30C for screening the favorable optimally incubation temperature. Culture medium was refreshed every 5...
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