WebFeb 15, 2006 · Although the number of bacteria was reduced more by 1.5 kGy irradiation than by 1.0 kGy irradiation, as shown in Fig. 1, 1.5 kGy irradiation caused more damage … WebBased on the results of the experiment, the Serratia marcescens species needs to be exposed to UV light for more than 3 minutes in order to achieve effective killing of the bacteria. I came to this conclusion because all of the plates showed bacteria growth when exposed to UV light for 30 seconds, 1 minute and 3 minutes.
Effect of Low Power Microwave Radiation on Pigment Production in Bacteria
WebExpert Answer. 2.Yes, the length of UV exposure effects the DNA repair mechanism in Serratia marcescens. This was derived from the …. Exercise 17: The Effect of UV Radiation on Bacterial Growth 2. Does length of exposure to UV light affect the ability of Serratia marcescens to repair DNA damage? Use examples from your data to explain … WebFeb 17, 2024 · Bacteria require high a w (0.97–0.99), whereas fungi can tolerate drier environments; for example, the range of a w for growth of Aspergillus spp. is 0.8–0.75. Decreasing the water content of foods by drying, as in jerky, or through freeze-drying or by increasing osmotic pressure, as in brine and jams, are common methods of preventing … magical rainbow of binding pdf
Impact of UV irradiation at full scale on bacterial ... - Nature
WebOxygen and Bacterial Growth. Pressure. The vast majority of microbes, living on land or water surface, are exposed to a pressure of approximately 1 atmosphere. ... While bacterial endospores are extremely resistant to the harmful effects of ionizing radiation, vegetative cells were thought to be quite susceptible to its impact. Web2-12 The Effect of Ultraviolet Radiation on Microbial Growth OBSERVATIONS AND INTERPRETATIONS 1 Enter your class data in the table below using the following … WebClayton (3) have recently been followed by further observations of the effect of irradiated medium on bacterial cells. The effect of medium on various synthetic processes was … magical rainbow svg