Materials and Methods
Plant Material and Chemicals. The roots of Noni
were obtained from the plants (M. citrifolia) that were
grown locally in Thailand. The plant roots were harvested,
washed, and oven-dried at 313 K. The dried roots,
whose moisture content was about 20%, were ground in
a coffee grinder to small size. This method of sample
preparation yielded small needlelike particles with an