title: Physicochemical properties of giant embryo rice Seonong 17 and Keunnunjami.
abstract: This study was carried out to determine the physicochemical properties of giant embryo rice "Seonong 17" and "Keunnunjami" in comparison with the normal embryo rice. Scanning electron microscopy revealed that Seonong 17 and Keunnunjami have larger embryo and that starch granules from Keunnunjami were more tightly packed with smaller air spaces between granules. Seonong 17 exhibited the lowest amylose content. Keunnunjami showed the highest protein content, pasting temperature, peak and breakdown viscosities, and gelatinization temperature and enthalpy. Both giant embryo rice samples contained significantly higher amounts of essential amino acids and unsaturated fatty acids than the normal rice. Proteomic analysis using two-dimensional gel electrophoresis revealed differences in the protein profile of Seonong 17 and Keunnunjami. The results could serve as baseline information in evaluating the quality of these two giant embryo rice cultivars and provide a better understanding of their potential uses and food industry applications.
authors.affiliation: a Department of Food Science and Nutrition, Brain Korea 21 Plus , Kyungpook National University , Daegu , Korea.
authors.forename: Soo Im
authors.initials: SI
authors.lastname: Chung
authors.affiliation: b School of Applied Biosciences, Kyungpook National University , Daegu , Korea.
authors.forename: Sang Chul
authors.initials: SC
authors.lastname: Lee
authors.affiliation: a Department of Food Science and Nutrition, Brain Korea 21 Plus , Kyungpook National University , Daegu , Korea.
authors.forename: Mi Young
authors.initials: MY
authors.lastname: Kang
mesh_terms: D000596:Amino Acids / Q000032:analysis; D055598:Chemical Phenomena; D005433:Flour / Q000032:analysis; D063427:Food Quality; D008903:Minerals / Q000032:analysis; D009753:Nutritive Value; D012275:Oryza / Q000737:chemistry*; D010940:Plant Proteins / Q000032:analysis; D012639:Seeds / Q000737:chemistry*; D013213:Starch / Q000032:analysis
chemical_list: D000596:Amino Acids; D008903:Minerals; D010940:Plant Proteins; D013213:Starch
keywords: giant embryo rice; nutritional quality; physicochemical property