نتایج جستجو برای: osmotic pretreatment
تعداد نتایج: 58982 فیلتر نتایج به سال:
Received: 15/11/2013 Revised: 13/12/2013 Accepted: 16/12/2013 Abstract Osmotic dehydration is a process of water removal by immersion of water containing cellular solids in a concentrated aqueous solution of sugar/ salt. This results in intermediate moisture product with lower water activity. At low water activity, most of the chemical reactions which deteriorate the food as well as the growth ...
present study was conducted to investigate the effects of different osmotic potentials (0.0 mpa, -0.4 mpa, -0.8 mpa and -1.2mpa) induced by nacl and polyethylene glycol-6000(peg) as salinity and drought stress respectively on germination and early growth of two inbred lines of maize (mo17 and b73). the objective was to compare the germination ability between tow maize inbred lines in salt and d...
salinity affects plant growth by the osmotic stress of salt around the roots as well as by toxicity caused by excessive accumulation of salt in leaves. the study of photosynthetic traits as a rapid and non-destructive tool demonstrates the great potential for improving plant productivity and stress tolerance. a pot experiment was carried out to investigate short-term effects of osmotic stress (...
Stationary-phase Escherichia coli cultures showed enhanced osmotic resistance as compared with cultures in mid-logarithmic growth or preadapted to osmotic stress. The osmotolerance that developed during starvation or osmotic adaptation required de novo protein synthesis. Of the 22 polypeptides induced during osmotic shock, five were also starvation proteins.
Antidiuretic hormone (ADH) increases the osmotic water permeability (Posm) of toad urinary bladder. This increase is believed to be produced by fusion of intracellular vesicles called aggrephores with the granular cell apical plasma membrane. Aggrephores contain intramembrane particle aggregates postulated to be water channels. ADH-stimulated Posm is decreased by osmotic gradient exposure, whic...
The osmotic fragility of erythrocytes is known to undergo alterations when whole blood is incubated under aseptic conditions for 24 hours. The osmotic fragility of spherocytes increases considerably ( 1 ). Normal erythrocytes undergo a slight increase in fragility (2) and by contrast the osmotic fragility of leptocytes and certain other erythrocytes (3) is decreased. The sequence of events asso...
In this study a novel mathematical model for electroosmotic flow Cu-water based nanofluid with heat transfer phenomenon is reported scraped-surface exchanger. The initiated due to motion of lower wall the channel and axial pressure gradient. modelled aid low Reynolds number lubrication approximation theory. Exact analytical expressions are gathered velocity, stream functions various stations Ph...
An experiment was conducted to see the impact of osmotic stress as it is one of the main cause in various soil and water disorders in agricultural field crops, speciallythe seed germination and seedling growth. The osmotic stress was generated using PEG-6000 and the seed germination, seedling growth were evaluated including the status of pigments i.e. chlorophyll (a, b and total), total caroten...
haploid microspore-derived embryos (mdes) of wheat were obtained by in vitro androgenesis. these embryos were employed to evaluate the transient expression of gus gene (uida) following particle bombardment. using the bio-rad pds-1000/he system, the physical parameters including rupture disk pressure (900, 1100 and 1350 psi); microprojectile travel distance (6 and 9 cm); gold particles size (0....
Preamble van't Hoff, a world-renowned scientist, studied and worked on the osmotic pressure and chemical dynamics research to win the first Nobel Prize in Chemistry. For more than a century, his osmotic pressure formula has been written in the physical chemistry textbooks around the world and has been generally considered to be "impeccable" classical theory. But after years of research authors ...
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