Villareal C P, Juliano B O
Cereal Chemistry Department, International Rice Research Institute, Los Baños, Laguna, Philippines.
Plant Foods Hum Nutr. 1989 Sep;39(3):287-97. doi: 10.1007/BF01091939.
Among 30 IR varieties, variety had greater effect on thiamine content of brown rice than season. Both season and variety affected riboflavin content. Purple- and red-pericarped Philippines rices had higher riboflavin and crude protein contents than IR rices. Crude oil contents of brown rice and bran-polish of 19 IR rices were significantly affected by variety, but only brown rice oil content was significantly affected by season. Bran-polish of waxy rice IR29 had the highest oil content. Silicon content of hull of 16 IR rices showed significant variation due to variety and season and tended to be higher in the dry season crop. Variety rankings in nutrient composition were not consistent for the two crops. The levels of nutrients of IR rices were within the range of values reported for other rices.
在30个IR品种中，品种对糙米硫胺素含量的影响大于季节。季节和品种均影响核黄素含量。菲律宾的紫皮和红皮水稻的核黄素和粗蛋白含量高于IR水稻。19个IR水稻品种的糙米和米糠油含量受品种影响显著，但只有糙米油含量受季节影响显著。糯稻IR29的米糠油含量最高。16个IR水稻品种谷壳的硅含量因品种和季节而有显著差异，旱季作物的硅含量往往较高。两种作物在营养成分上的品种排名不一致。IR水稻的营养水平在其他水稻报道的值范围内。
