measured. Zeta 15 bran has the most c-oryzanol, whereas FONAIAP-1 bran has the most tocopherols. a-Tocopherol
and a-tocotrienol were undetectable in Cimarro´n bran, but this variety has significantly (p < 0.05, Tukey b) higher ctocopherol and d-tocotrienol than all the other samples.
Polyphenol content in all bran samples was not significantly different (p = 0.07). The levels of these antioxidants
were in the same magnitude as those published previously for other varieties of rice (Chen & Bergman, 2005; Luh, 1980).