The Nutrient Composition of New Giant Embryo Rice Strains

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-1in 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-1and 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.