Exploitation of solar energy as an alternative energy for milk sterilization from microbes


In this research the milk had been pasteurized by solar energy. It is clean energy and friendly to environment as well as available in Iraq. Circle option dish reflector was used with diameter1.5 m and focal length 80 cm, reflectivity gave at 80% and heat temperature about 200-350c. Milk container location was in optical focus of optical dish reflector. The milk had been heated at different times 10,20,30 minutes and we showed that after implanting samples tested to three genus of bacteria-contaminated milk (Staphylococcus, Klebsiella, Enterrobecter), the bacteria did not appear in 30 min heating.