TY - JOUR AU - Nadeem, Muhammad AU - Anwar, Asif AU - Ullah, Rahman AU - Ahmad, Shakeel AU - Babar, Masroor Ellahi PY - 2017/04/01 Y2 - 2024/03/29 TI - Photo-oxidation of Pasteurized Milk in Polyethylene Pouch Packs JF - Biological Sciences - PJSIR JA - Pakistan Journal of Scientific & Industrial Research VL - 60 IS - 1 SE - Articles DO - 10.52763/PJSIR.BIOL.SCI.60.1.2017.46.48 UR - https://v2.pjsir.org/index.php/biological-sciences/article/view/26 SP - 46-48 AB - <p>In the present study photo-oxidative stability of pasteurized milk packaged in polyethylene<br>pouches was investigated. Milk packaged in three layer polyethylene pouch packs was exposed to 400,<br>600 and 800 l´ florescent light at 4 °C for 6 days, compared with a control (stored in dark). Light had a<br>pronounced effect on fat content of milk with no effect on protein, lactose and ash content. Photo-oxidative<br>stability of milk decreased as the intensity of light increased, peroxide value, anisidine value and conjugated<br>dienes increased during the storage period of 6 days, higher values were observed in samples exposed to<br>800 l´ florescent light. After 6 days of storage period, milk exposed to 400 l´ florescent light did not reveal<br>any oxidized flavour. The results of this study depicted that polyethylene pouches have the capability to<br>resist photo-oxidation up to 400 l´ light.<br><br></p> ER -