Publications by authors named "Hripsime Petrosyan"
Article Synopsis
- The K1 strain of an extremophile microorganism primarily uses aerobic metabolism, with some strains able to grow anaerobically depending on the carbon sources available.
- Experiments showed that the strain's growth was affected by the concentration and pH of carbon sources, notably that high glucose concentrations hindered growth while other sugars did not.
- The study discovered that K1's bioenergetic properties, including membrane potential and proton motive force, vary with different carbon sources and acidic conditions, revealing potential for biotechnological applications.
After brewing roasted coffee, spent coffee grounds (SCGs) are generated being one of the daily wastes emerging in dominant countries with high rate and big quantity. Escherichia coli BW25113 wild-type strain, mutants with defects in hydrogen (H2)-producing/oxidizing four hydrogenases (Hyd) (ΔhyaB ΔhybC, ΔhycE, ΔhyfG) and septuple mutant (ΔhyaB ΔhybC ΔhycA ΔfdoG ΔldhA ΔfrdC ΔaceE) were investigated by measuring change of external pH, bacterial growth and H2 production during the utilization of SCG hydrolysate. In wild type, H2 was produced with rate of 1.
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