A recent report using a standardized oxygen radical absorbance capacity or ORAC analysis on a freeze-dried acai powder found that this powder showed a high antioxidant effect against peroxyl radical (1027 micromol TE/g). This is approximately 10% more than lowbush blueberry or cranberry on a dry weight basis (Wu, 2004). The ORAC value for this freeze-dried powder was significantly higher than when other methods of drying the fruit were tested (Schauss, 2006c). Other powders with ORAC values this high include cinnamon (2675 micromol TE/g), cloves (3144 micromol TE/g), turmeric (2001 micromol TE/g) and dried oregano (1593 micromol TE/g) (Wu, 2004).
Antioxidant Capacity and Other Bioactivities of the Freeze-Dried Amazonian Palm Berry, Euterpe oleraceae Mart. (Acai)
Web Release Date: October 7, 2006
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