巨胚稻新品系的营养成分分析  

The Nutrient Composition of New Giant Embryo Rice Strains

作　　者：张艳华[1] 郑植[2] 陈幼玉[3] 黄荣华[1] 郑宝东[4] 章清杞[1] 

机构地区：[1]福建农林大学/作物遗传育种与综合利用教育部重点实验室,福建福州350002 [2]福建农林大学经济与管理学院,福建福州350002 [3]福建农林大学学报编辑部,福建福州350002 [4]福建农林大学食品科技研究所,福建福州350002

出　　处：《核农学报》2013年第9期1331-1336,共6页Journal of Nuclear Agricultural Sciences

基　　金：国家科技支撑计划(2007BAD81B02)

摘　　要：为筛选出高营养成分含量的巨胚稻品系,以期为巨胚稻的育种研究和加工开发提供依据。本研究以福建农林大学作物遗传育种研究所选育的一批功能性巨胚稻新品系及非巨胚对照为材料,分别测定了其糙米的7种矿物质和17种氨基酸含量。结果表明:巨胚稻新品系中钾、锌、铜、锰和铁5种矿物质元素的平均含量分别比M86高50.65%、12.65%、28.58%、100.12%和112.86%;巨胚稻新品系的硒含量最高的为gewx1(0.17mg·kg-1),比对照M86(0.02mg·kg-1)高出750%。巨胚稻新品系绝大部分氨基酸含量都高于对照,必需氨基酸总量(EAA)平均为3.42%,比M86增加29.05%,氨基酸总量(TAA)平均为8.93%,比M86增加31.00%;巨胚稻品系的γ-氨基丁酸(GABA)含量平均达到5.81mg·100g-1,是对照M86(1.81mg·100g-1)的3.2倍,大米肽的平均含量为20.98mg·g-1,比对照增加53.73%。糙米相对胚重与大部分营养成分含量呈极显著正相关,说明提高相对胚重能提高稻米在这些营养物质上的含量。The contents of mineral elements and amino acids of a group of new giant embryo rice （ge-rice） strains that were bred by the Institute of Crop Genetics and Breeding, Fujian Agriculture and Forestry University were measured. The results indicated that： the average content of five mineral elements, K, Zn, Cu, Mn and Fe of new ge-rice strains increased by 50.65%, 12.65%, 28.58%, 100.12% and 112.86% compared with the control, M86. However, the highest content of Se was 0.17mg·kg-1 in the gewx1 that was 8.5-folds that of M86 （0.02mg·kg-1）. The majority of amino acids in ge-rice were higher than that of CK. The average essential amino acids （EAA） and total amino acids （TAA） of ge-rice reached 3.424% and 8.934%, which increased by 29.05% and 31.00% respectively. The average content of γ-amino butyric acid （GABA） of ge-rice strains was 5.81mg·100g-1, which was 3.2-folds of M86. The average content of peptide of ge-rice was 20.98mg·g-1 and increased by 53.73% compared with M86（1.81mg·100g-1）. Correlation analysis suggested that there were significant positive correlation among the relative embryo weight and the levels of most of the nutrients. This indicated that the content of these nutrients could be improved by the relative embryo weight in rice.

关 键 词：巨胚稻新品系 氨基酸 矿物质 营养分析 

分 类 号：S511[农业科学—作物学]