稻谷储藏过程中理化特性变化的研究  

Study on Physical and Chemical Characters in Rice Storage

作　　者：张瑛[1] 吴先山 吴敬德[1] 杨世祥 童继平[1] 郑乐娅[1] 佘德红[1] 吴跃进[1] 

机构地区：[1]安徽省农业科学院水稻研究所 [2]安徽中谷粮油贸易有限责任公司,合肥230001 [3]安徽省定远县粮食局,定远233200

出　　处：《中国粮油学报》2003年第6期20-24,28,共6页Journal of the Chinese Cereals and Oils Association

基　　金：国家科技部"863"项目 (2 0 0 1AA2 4 1 0 1 8) ;农业部"948"(991 0 1 8);安徽省科技厅重大科技专项 (0 1 60 30 0 2 )的资助

摘　　要：根据现有国标稻谷储存控制指标角度研究了不同年份储藏稻谷的粘度、脂肪酸值、发芽率、发芽势的变化曲线 ,还研究了不同年份储藏稻谷的脂肪氧化酶Lox - 3活性、直链淀粉的含量、胶长、酸度、碱消值、电导率、丙二醛的含量、含水量的变化规律 ,并对所测定的项目指标进行统计分析 ,获得各项指标的相关系数。结果表明 :储藏稻谷中 ,粘度、脂肪酸值、发芽率、脂肪氧化酶Lox - 3活性、直链淀粉的含量、酸度、电导率、丙二醛呈显著相关。随着储藏时间延长 ,粘度、脂肪氧化酶Lox - 3活性、发芽率、发芽势、直链淀粉含量均下降 ;而脂肪酸值、酸度、丙二醛的含量、电导率则明显增加 ;胶长、碱消度无明显的变化。研究稻谷储藏过程中理化特性的变化 。According to indexes of the paddy storage deterioration set in the National Standards,the changes of the viscosity,content of free fatty acid (FFA),and germination percentage of rices stored for different years were investigated;and the laws of change of lipoxygenase-3 activity,amylose content,gel consistency,acidity,Asv,conductivity,malondiadehyde(MDA) level,and water content of the stored rices were studied.The results demonstrated the significant corelation level among the gel consistency,content of free fatty acid (FFA),germination percentage,lipoxygenase-3 activity,amylose content,gel consistency,acidity,conductivity,and malondiadehyde(MDA) level of the stored rices.With the storage time prolonging, the viscosity,lipoxygenase-3 activity,germination percentage,germination trend ,and amylose content,decreased,but the content of free fatty acid (FFA),acidity,malondiadehyde(MDA) level and conductivity increased significantly,and there were no significant change in the gel consistency (GC)and Asv.These data are useful for development of a new index system to evaluate of rice storage stability.

关 键 词：稻谷 储存 理化特性 耐储性指标 品质测定 

分 类 号：S511[农业科学—作物学]