Bibliographic citations
Loayza, G., (2009). Evaluación de la efectividad del uso de luz UV en los tanques de Moromi en el proceso de fermentación de sillao [Tesis, Universidad Nacional Mayor de San Marcos]. https://hdl.handle.net/20.500.12672/2340
Loayza, G., Evaluación de la efectividad del uso de luz UV en los tanques de Moromi en el proceso de fermentación de sillao [Tesis]. PE: Universidad Nacional Mayor de San Marcos; 2009. https://hdl.handle.net/20.500.12672/2340
@misc{renati/479802,
title = "Evaluación de la efectividad del uso de luz UV en los tanques de Moromi en el proceso de fermentación de sillao",
author = "Loayza Juárez, Geraldine Patricia",
publisher = "Universidad Nacional Mayor de San Marcos",
year = "2009"
}
In the process of production of soy sauce, to enable the process of fermentation takes place in an appropriate manner, it is necessary that the raw material is discovered in tanks up to 4 months, so there is likely to be contaminated with environmental bacteria and the fermentation process is interrupted, to prevent this UV lamps are used. Ultraviolet Light (UV) is used at the soy sauce production plant for sixteen hours (only during the second a third shifts). During the first shift, UV light is off due to personnel operations). Standard ultraviolet light fluorescent bulbs are being used to prevent the influence of environmental bacteria during the fermentation process of Moromi, which takes place in tanks and without stirring. The fluorescent bulbs are located over the fermentation tanks, which can have a diameter of 1.5m (4kl) or 2.2m (8kl) and are covered with a net which prevents little insects from falling into tanks. However, this net can not protect the tanks from environmental bacteria or spores which may alter stop or modify the fermentation process. The ultraviolet light dose is a function of its intensity and the exposure time (dose = UV light intensity x exposure time). Most of the viruses, bacteria and yeasts are destroyed with a relatively low level of energy (usually 10000 microwatts-sec/cm2) and the dosages for the most common microorganisms are well-known. On the other hand, spores, fungi and protozoan require higher levels of energy to be eliminated. The efficiency of ultraviolet light lamps is determined by conditions such as distance of the lamp, the exposure time and average life spam of the lamps. As a result a 90% decrease in the environmental bacteria load has been proposed. The objective of this work is to set the conditions of the use of ultraviolet light lamps in the soy sauce production plant, by determining the height and exposure time, in order to maximize the germicide properties of the light. In order to achieve this, a test was designed, in which all the conditions can be tested in different heights and times.
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