Mangoes were determined for texture, drip loss and color in fresh, immediately after freezing and after frozen storage for 7 days. Appearance of samples are shown in Fig. 8.5. Freezing showed no effect on appearance of frozen mangoes. Low temperature effectively delayed rates of chemical and biochemical reaction. Moreover, low temperature processing prevent loss of β-carotene which contributes to yellowish color in mangoes. Conversely, high temperature in thermal food processing e.g. canning, hot-air drying causes loss of color and browning reaction possibly occurs (De Ancos et al., 2006). The mangoes were cut and packed in vacuum bags prior to freezing. Vacuum conditions also delayed enzymatic browning due to polyphenol oxidase which transformed polyphenolic compounds in mangoes into o-quinone (brownish compounds) in the presence of oxygen (Ioannou,2013). Browning reaction occur fast at room temperature and chilling conditions should be avoid prior to freezing to get desirable appearance of frozen mangoes.