نتایج جستجو برای: flask apparatus
تعداد نتایج: 52046 فیلتر نتایج به سال:
Abstract This study involved extracting the of alcohol extract, volatile oil and alkaloid isolated from Capsicum frutescens L. fruits on Candida albican ,. It also test a phytochemical screen determine percentage yield alkaloid, annuum L . was collected Karbala City, that approximately 24 hours to extract using Soxhlet apparatus with 400 ml Methanol Alcohol Solvent in 1000 Flask, evaporation by...
This report describes the combined use of an enzyme-based glucose release system (EnBase®) and high-aeration shake flask (Ultra Yield Flask™). The benefit of this combination is demonstrated by over 100-fold improvement in the active yield of recombinant alcohol dehydrogenase expressed in E. coli. Compared to Terrific Broth and ZYM-5052 autoinduction medium, the EnBase system improved yield mai...
in this research, an apparatus was made and utilized to determine the friction coeffi-cient of chickpea grains on steel surfaces. experiments were carried out on two black and galvanized surfaces and at four sliding velocities of 5, 20, 100 and 500 mm/min, at three moisture content of 7.5%, 15% and 21% wet basis (w.b.) and at three vertical pressure values of 14.28, 100 and 150 kpa. the followi...
In 1943 there appeared in Berichte der Deutschen Chemischen Gesellschaft[1] a brief notice (Figure 1) of the death of Wilhelm Schlenk, the former President of the German Chemical Society (Deutsche Chemische Gesellschaft).[2a] It was stated that a fuller biography of Schlenk would appear later, but this has not been forthcoming, although there were short articles in specialized Austrian[2b] and ...
Gerhardt, Philipp (The University of Michigan, Ann Arbor), and D. M. Gallup. Dialysis flask for concentrated culture of microorganisms. J. Bacteriol 86:919-929. 1963.-A twin-chambered dialysis flask was designed with a supported membrane clamped between a reservoir of medium in the bottom and a small volume of culture above, the unit being mounted on a shaking machine to provide aeration and ag...
We demonstrated that a Klura3Δ, mutant of the yeast Kluyveromyces lactis is able to produce and secrete into the growth medium considerable amounts of orotic acid. Using yeast extract-peptone-glucose (YPD) based media we optimized production conditions in flask and bioreactor cultures. With cells grown in YPD 5% glucose medium, the best production in flask was obtained with a 1:12.5 ratio for f...
[1] Automated flask sampling aboard small charter aircraft has been proposed as a lowcost, reliable method to greatly increase the density of measurements of CO2 mixing ratios in continental regions in order to provide data for assessment of global and regional CO2 budgets. We use data from the CO2 Budget and Rectification-Airborne 2000 campaign over North America to study the feasibility of us...
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