PPT-Applications of Ultraviolet Radiation in Foods

Ultraviolet light can be used to inactivate many types of organisms including viruses but it is currently known that UV light only works on surfaces or clear liquids such as water UV light radiation has been used for many years in pharmaceutical electronic and aquaculture industries as a disinfection medium . The US Environmental Protection Agency EPA is responsible for advising the government on radiation hazards and regulating certain sources of radioactivity in the environment This booklet provides basic facts about radiation science as well as inform PREPARED UNDER THE GUIDANCE OF. DR. ARUN KUMAR. ASSTT PROFESSOR IIT DELHI. Prepared by:. Purbashree Sarmah(2014CEV2092). Surya Sujathan(2014CEV2094). Madhur Chachondia(2014CEV2586). Ganga . water facing . Screens. ‘How it works?’. Cathode Ray Tubes. Output devices. Cathode Ray Tubes. Television screens used to use a technology called, cathode ray tubes (CRT). An electron gun emitted electrons inside a glass tube onto phosphor atoms at the end of the glass tube, causing the phosphor atoms to light up. The electron gun scanned the screen many times per second, producing an image. . ULTRAVIOLET RADIATION SPECTRUM. UVA (Longwave Radiation). Range 320-400 nm. Erythrogenic activity is weak, however penetrates dermis. Responsible for development of slow. natural tan. Most drug-induced photosensitivity rxn occurs . Aziz AlSa’ad-Nasser Alabduljaleel-Abdulkareem AbuTaleb-Aziz AlOthman . 1.3 Vocabulary . Ultraviolet radiation:. rays of light that cannot be seen and that are a little bit shorter than the rays of violet light. Spectroscopy. 441 . Chem. CH-2. 1. The Ultraviolet . and Visible Spectrum. Near UV. Visible. 200 nm. 400 nm. 800 nm. Wavelength (nm). 10 nm. Far UV. Higher frequency. Lower frequency. 2. The absorption of . Ultraviolet (UV) light falls in the range of the EM spectrum between visible light and X-rays. UV . light, which comes from the sun, is invisible to the human eye. .. It . makes black-light posters glow, and is responsible for summer tans — and sunburns. The up - coming Geostationary Operational Environmental Satellites, GOES - R and - S platforms, as part of NOAA's (National Oceanic and Atmospheric Administration ) space weather monitoring fleet. What type of radiation is most harmful It depends on whether your exposure to radiation is internal or external beta particles Radioactive materials thatRadiation can affect the bodyThese adverse hea Unit-3. DR ANIL KUMAR. assistant professor, . vcc. , . bvc. (. basu. ), . patna. VITAMIN D DEFICIENCY. Vitamin D is thought of as the “sunshine vitamin”.. The two major natural sources of vitamin D are . Radiation. may be defined as the . “emission and propagation of energy through space or through a material medium”.. Because they destroy microorganisms without appreciably raising the temperature, the process is termed “. hungry pumping system. This chapter describes an unusual i , indoor dust [Lagesson, et al., 2000a], and proposed as a means for functional group analysis [Lagesson, et al., 2000b]. Experimental A b The cell life cycle The cell cycle G0 = Cell is resting G1 = RNA and proteins are made S = DNA is made G2 = Apparatus for mitosis is built M = Mitosis (the cell divides into 2 cells) G0 phase (restin radiaton. , through different types of filters. . UV & . Sunblock. Measuring and comparing the level of ultraviolet radiation, through different types of filters.. Objective. The purpose of this activity is to study the level of ultraviolet radiation resulting from the intervention of a sunlight beam through different types of filters, creating a hypothesis and proceeding to test it using the .