Banana fruit (Musa sapientum Linn.) is a tropical fruit and is commercially important. In Thailand, banana has been grown for commercial purposes for a long time, including cultivars such as ‘Kluai Hom’(Gros Michel) banana, ‘Kluai Khai’ banana, ‘Kluai Lebmhernang’ banana, and ‘Kluai Namwa’ banana. With its high nutrients and pleasing flavor and aroma, the demand for banana fruit in both domestic market and export has never decreased. However, the loss of bananas in the market is still high due to the rapid ripening. Most overripe banana are rejected fromthe market as waste. Producing banana syrup from overripe bananas is one approach to reducing waste and adding value to the overripe bananas. However, a key problem of banana syrup is its undesirable visual appearance due to browning discoloration [1]. It is widely accepted that browning caused by enzymatic reaction is the main problem causing low visual appeal of banana products. Sudprasert [2] investigated the use of AsA and heat treatment controlling browning in dried banana pulp in which the use of 1%AsA incorporated with heat treatment at 80ºC for 10 min maintained a desirable appearance and retarded polyphenol oxidase in dried banana pulp. Jackson et al. [3] reported that blanching at 69ºC for 22 min retarded browning discoloration in fried banana pulp.