SENSORY AND CHEMICAL-QUALITY OF UHT-MILK STORED IN PAPERBOARD CARTONSWITH DIFFERENT OXYGEN AND LIGHT BARRIERS

The sensory and chemical shelf-life of UHT-milk-stored at room tempera ture and at 6 degrees C in aluminium-foil, non-foil barrier (X-board) and PE cartons were investigated. UHT milk in aluminium-foil stored in the dark has a minimum shelf-life of 6 months, While the shelf-life i s 4-5 months in X-board and PE cartons. When PE cartons and X-board ca rtons are stored, with strong light exposure at 6 degrees C, a develop ment of light-induced off-flavour is detected after 2 and 8 weeks, res pectively. The light-induced off-flavour effect is more pronounced tha n the Effect of non-light induced oxidation of unsaturated lipids.