紫色玉米穗轴色素的稳定性研究  

Research on the stabitity of purple corn cobs pigment

作　　者：张雅君[1] 梁佳勇[1] 乐素菊[1] 曾幕衡[1] 

机构地区：[1]仲恺农业工程学院生命科学学院,广东广州510225

出　　处：《广东农业科学》2011年第5期128-130,共3页Guangdong Agricultural Sciences

基　　金：广东省科技计划项目(2010B020302009);广东省农业厅粤财农(3071328);仲恺农业工程学院科研基金(G3100009)

摘　　要：用比色法确定了紫色玉米花色苷色素的最大吸收峰,并对色素的理化性质进行分析。结果表明:紫色玉米花色苷色素最大吸收峰为526 nm。紫色玉米色素对食盐、蔗糖、葡萄糖、维生素C、柠檬酸、乙酸以及Cu2+、Mg2+、Ca2+、K+、Al3+均表现稳定。紫色玉米色素对光、氧化剂(H2O2)、还原剂(Na2SO3)较为敏感。The maximum absorption peak of the pigment was detected by spectrophotometry,and its physical and chemical property were studied.The results showed that the maximum absorption peak ofthe pigment of purple corn cobs was 526 nm.The results also indicated that anthocyanin extracts were stable in common salt,sugar cane,grape sugar,vitamin C,citric acid,acetic acid,some metal ions such as Cu2＋、Mg2＋、Ca2＋、K＋ and Al3＋,the anthocyanin extracts were sensitive to light,oxidant（H2O2）,reducingagent（Na2SO3）.

关 键 词：紫色玉米 穗轴 花色苷色素 稳定性 

分 类 号：TS202.3[轻工技术与工程—食品科学]