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A low-pressure mercury-vapor discharge tube floods the inside of a biosafety cabinet with shortwave UV light when not in use, killing microbes on irradiated surfaces. Ultraviolet germicidal irradiation (UVGI) is a disinfection technique employing ultraviolet (UV) light, particularly UV-C (180–280 nm), to kill or inactivate microorganisms ...
The international Radura logo, used to show a food has been treated with ionizing radiation. A portable, trailer-mounted food irradiation machine, c. 1968 Food irradiation (sometimes American English: radurization; British English: radurisation) is the process of exposing food and food packaging to ionizing radiation, such as from gamma rays, x-rays, or electron beams.
Low power consumption of semiconductors introduce UV disinfection systems that utilized small solar cells in remote or Third World applications. [2] By 2019, LEDs made up 41.4% of UV light sales, up from 19.2% in 2014 [3] The UV-C LED global market is expected to rise from $223m in 2017 to US$991m in 2023. [4]
Fresh cider is opaque due to fine apple particles in suspension and generally tangier than commercially cooked and filtered apple juice, but this depends somewhat on the variety of apples used. Cider is sometimes pasteurized or exposed to UV light to kill bacteria and extend its shelf life, but traditional raw untreated cider is still common ...
UV light penetrates the skin at wavelengths between 290 and 320 nanometers, where it is then converted into vitamin D 3. [46] Vitamin D 2 can be obtained from fungi , such as mushrooms exposed to sun or industrial ultraviolet light , offering a vegan choice for dietary or supplemental vitamin D. [ 120 ] [ 121 ] Plant milks , such as from oat ...
Analysis of several fruits and vegetables showed that phytoene and phytofluene are found in majority of fruits and vegetables. [6] In contrast to all other carotenoids, phytoene and phytofluene, the first carotenoid precursors in the biosynthetic pathway of other carotenoids, absorb light in the UV range.