Effect of Helium-Neon Laser (632.8 nm) and Diode Laser (532 nm) on Powder Milk

Abstract

In this study two types of laser (He-Ne and Green Diode) are used to radiate a sample of a powder milk from available on local markets for a difference durations of times, some of chemical parameters analysis were done (rate of Moisture , the measure of pH value and Ash%) on sample of powder milk . When use (He-Ne) laser it was found that a decrease in Moisture when we use it for short duration of time, but increased Moisture when used it for long duration ,also He-Ne laser decreased Ash and pH . When use green diode laser it was found that no affect on Moisture, but we found increase on Ash and decrease on pH value.