Excellent brown rice from suitable varieties
2010
Corpuz, H.M. | Ablaza, M.J.C. | Romero, M.V., Philippine Rice Research Inst. Maligaya, Science City of Muñoz, 3119, Nueva Ecija (Philippines). Rice Chemistry and Food Science Div.
The recent increase in consumers' preference for whole grain cereals is due to the accumulation of convincing evidence that regular consumption of these food is strongly associated with reducing the risks for chronic diseases. Like other whole grains, brown rice is loaded with various nutrients. Despite the overwhelming nutritional value and health benefits, consumption of brown rice is unappealing because of its short shelf life, longer cooking time, hard texture, and poor palatability. This study was conducted to screen suitable varieties for brown rice with improved cooking and eating quality. Based on the grain quality evaluation, all samples had more than 75.0% brown rice yield. The amylose content ranged from 15.1-27.8% while gelatinization temperature (GT) varied from high-intermediate to low. Textural analysis revealed that low amylose rice varieties and those with intermediate amylose and high-temperature to intermediate GT had softer cooked brown rice (3.0kg/ sq cm). To further improve the cooking and eating quality, brown rice were soaked in water at different times (15, 30, 45, and 60 min). Soaking significantly reduced the Instron hardness of cooked brown rice. Cooking time and water uptake ration of most samples soaked at different periods were similar but they were significantly lower and higher, respectively than those samples not subjected to soaking. Sensory evaluation showed that soaking improved tenderness, chewiness, cohesiveness, smoothness, and overall acceptability of cooked brown rice. The use of appropriate varieties and correct soaking periods can reduce the cooking time and improve the texture and palatability of brown rice.
Показать больше [+] Меньше [-]Ключевые слова АГРОВОК
Библиографическая информация
Эту запись предоставил University of the Philippines at Los Baños