Moisture Content Determination by Standard Methods
Table 4 shows the rough rice moisture contents determined by different measurement methods at various moisture content levels. In this part of the study, the AOAC air oven method (l30°C, ] h, ground sample) was selected as standard and compared with other moisture content measurement methods. This standard method gave slightly higher moisture contents than the vacuum oven method (lOO°C, 5 h). Drying of wholegrain rough rice at 130°C for 20 h over-estimated the moisture contents in comparison to those attained with the standard method over the moisture content range of 9 to 22% w.b.