These results lie between findings of Shen et al. (2009), who observed
for red and black rice varieties mean phenolic contents of
470.1 and 1055.7 mg/100 g, respectively and Choi, Jeong, et al.
(2007), who found as well lower total phenolic contents for black
rice (313 vs. 266.3 mg/100 g in this study; both expressed as gallic
acid on wet weight basis in methanolic extracts)