background & aim: effects of ultra violet spectrum on plants due to their obligatory requirement for sunlight for survival are unavoidable. direct effects of uv on plant growth and development are generally negative and usually they use many different defense mechanisms to acclimate and protect themselves. material & methods: the present research for the first time was conducted to inv...

in this study, the effect of different sterilization treatments (115, 120 and 130 ° c, with same sterilization value) was evaluated on the chemical composition and lipid quality of canned silver carp. after sterilization, moisture and fat content were decreased and the amounts of protein and ash were increased, although significant differences due to the different thermal treatments were not ob...

Strains. Wild type C. elegans (strain N2) were obtained from the Caenorhabditis Genetics Center (University of Minnesota), and ftn-2(ok404) and the ferritin null ftn-2(ok404); ftn-1(ok3625) (strain GMC005) have been previously described1. All strains were cultured at 20 °C on standard nematode growth media (NGM) with E. coli (strain OP50)2. Populations were developmentally synchronized via a 3 ...

Azotobacter vinelandii strain ATCC 12837 and A. chroococcum strain H23 (CECT 4435) were able to grow on N-free or NH4Cl-amended chemically-defined (Burk's) media, with protocatechuic acid (1-2 mmol 1(-1)) or sodium p-hydroxybenzoate (1-10 mmol 1(-1)) as sole carbon (C) sources. At a concentration of 2 mmol 1(-1), both substrates supported nitrogen fixation (acetylene reduction assay) at similar...

Staphylococcal alpha-toxin was purified from Staphylococcus aureus growth medium using adsorption chromatography on controlled pore glass beads. Elution of alpha-toxin from the unmodified glass surface of the beads with various anions generally followed the chaotropic series. Alpha-toxin, purified by glass bead chromatography, is composed of a single electrophoretic form, containing less than 2...

5-Aminosalicylic acid (5-ASA) is currently prepared by electrochemical reduction of 5-nitrosalicylic acid (5-NSA) in acidic media. In this work, electrolytic reduction of 5-NSA in alkaline media is presented. Reactionconditions and parameters such as anode and cathode electrodes, electrolyte type, reaction time, temperature,current, and the pH for isolation of product are investigated. The yiel...

in this study, the effect of carbon and nitrogen sources, on production of yeast biomass was determined as well as the efficacy of various formulations of candida membranifaciens to decrease blue mold on apple. the media containing sugar cane molasses as carbon sources caused more yeast growth than the media supplemented with permeate powder. yeast extract as nitrogen source produced higher bio...