Green tea catechins are potent inhibitors of enzymes for carbohydrate digestion. However, the potential
of developing low glycaemic index bakery food using green tea extract has not been investigated. Results
of this study showed that addition of green tea extract (GTE) at 0.45%, 1%, and 2% concentration levels
significantly reduced the glycaemic potential of baked and steamed bread. The average retention levels
of catechins in the baked and steamed bread were 75.3–89.5% and 81.4–99.3%, respectively. Bread forti-
fied with 2% GTE showed a significantly lower level of glucose release during the first 90 min of pancreatic
digestion as well as a lower content of rapidly digested starch (RDS) content. A significantly negative
correlation was found between the catechin retention level and the RDS content of bread. The potential of
transforming bread into a low GI food using GTE fortification was proven to be promising