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当前位置: 首页 > 文章 > 红地球葡萄皮色素的提取及其稳定性的影响因素 经济林研究 2008,26 (1) 41-44
Position: Home > Articles > Extraction of Pigment in Red Globe Grapes Peel and Influence Factors on Its Stability Nonwood Forest Research 2008,26 (1) 41-44

红地球葡萄皮色素的提取及其稳定性的影响因素

作  者：
曾柏全;邓子牛;王卫;姚跃飞;周小芹
单  位：
湖南农业大学园艺园林学院;中南林业科技大学生命科学与技术学院
关键词：
红地球葡萄;色素;提取工艺条件;稳定性
摘  要：
以新鲜红地球葡萄为原料,探讨其天然色素的提取工艺,并通过正交实验得出了红地球葡萄色素的最佳提取工艺条件:80%的乙醇作提取剂,pH值为3,提取温度为70℃,料液比为1∶9。并对红地球葡萄色素的稳定性进行了研究,结果表明:红地球葡萄色素在pH为2~6时相对稳定,耐热性较好,耐光性也较好;金属离子对色素稳定性有一定的影响,其中Cu2+、Fe3+、Fe2+对色素的色泽有较大的破坏作用,但M g2+对红地球葡萄色素有稳定作用;氧化剂H2O2和还原剂N a2SO4对色素有一定的破坏作用。
译  名：
Extraction of Pigment in Red Globe Grapes Peel and Influence Factors on Its Stability
作  者：
ZENG Bai-quan1,2,DENG Zi-niu1,WANG Wei2,YAO Yue-fei2,ZHOU Xiao-qin2(1.College of Horticulture and Landscape,Hunan Agricultural University,Changsha 410128,Hunan,China; 2.College of Life Science and Technology,Central South University of Forestry & Technology,Changsha 410004,Hunan,China)
关键词：
Red Globe Grape;pigment;process conditions of extraction;stability
摘  要：
Extraction process of natural pigment was researched,taken fresh Red Globe Grape peel as materials.The optimum process conditions of extraction were gained by orthogonal experiment.The optimum process conditions were as follows: 80% ethanol as extractant,pH value was 3,extraction temperature was 70 ℃,and the ratio of material to liquid was 1∶9.As well as,the stability of pigment in Red Globe Grape was researched.The results showed that pigment remained stable and exhibited good heat-resisting and light-resisting properties at pH 2-6.Some metal ions had some effect on stability of pigment.Cu2+,Fe3+,Fe2+ could greatly damage pigment chroma,while Mg2+ could protect it.H2O2 and Na2SO3 could damage pigment chroma in some degree.

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