In this study we used the microfiltration technique and added
citric acid, ascorbic acid and cysteine to the filtered water and
monitored its shelf life in glass and plastic packaging material. The
additives were added based on their properties including metal
chelating, microbial growth inactivating ability, anti-oxidant activity,
anti-browning property and ability to delay the increase of
titratable acidity as reported by various researchers (Brul & Coote,