Measurement of satiety responses of different types of rice
Rice is a staple grain in Thailand, which is one of the world’s largest rice exporters. Recently, Thai researchers have developed a few new Thai rice strains with more nutritional values. Obesity has emerged as a major public health issue in Thailand, which mainly caused by excessive energy intake and lack of physical activities. This study was designed to investigate the effect of four different types of rice (White Jasmine rice, Sinlek rice, Riceberry rice, and Germinated Brown rice) on satiety responses (hunger, fullness, satisfaction, and desire to eat) and the effect of food intake at lunch. Twelve healthy women were studied in a within-subject preload with repeated measures, crossover design. Each participant completed four conditions, presented in random order. The test meals at breakfast containing 165 g of White Jasmine rice, Sinlek rice, Riceberry rice, or Germinated Brown rice. Pre and post-prandial satiety responded using 100 mm Visual Analog Scale (VAS) was measured at baseline (t-15), t0, t15, t30, t45, t60, t90, t120, t180, and t240 minutes. Energy intake was measure at the lunch using plate waste. There were no differences in the area under the time curve in modified VAS scores among types of rice in any parameter. However, the energy intake at lunch was significantly decreased in Riceberry rice compared to White Jasmine rice (p <0.01). All four types of rice were not differ significantly in the satiety response. Riceberry rice is the only rice that can decrease the energy intake at lunch.
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