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Position: Home > Articles > Stability of Melanin Extracted from Brown Frog Eggs Journal of Jilin Agricultural University 2017 (3) 349-353

林蛙卵黑色素稳定性的研究

作  者:
苏玉春;陈光;郭会楠;汪树生
单  位:
吉林农业大学生命科学学院
关键词:
林蛙卵;黑色素;稳定性
摘  要:
采用紫外—可见分光光度法,研究了温度、光照、氧化剂、还原剂、金属离子和食品添加剂对林蛙卵黑色素稳定性的影响。试验结果表明:林蛙卵黑色素具有良好的耐热性和光稳定性,其中氧化剂、还原剂对其影响较大,当KMn O4质量浓度达到50 g/L时,色价保存率降到41.3%,当Na2SO3质量浓度达到50 g/L时,放置48 h,色价保存率降到41.2%;金属离子中,Fe3+对林蛙卵黑色素影响较大,其色价保存率为(13.4±0.2)%,其他金属离子对其影响较小,影响程度排序为Ca2+﹤Na+﹤Zn2+﹤Mg2+﹤Al3+﹤Cu2+
译  名:
Stability of Melanin Extracted from Brown Frog Eggs
作  者:
SU Yuchun;CHEN Guang;GUO Huinan;WANG Shusheng;College of Life Science,Jilin Agricultural University;
关键词:
brown frog egg;;melanin;;stability
摘  要:
Effects of temperature,light,oxidants,reducing agents,mental ions and food additives on stability of brown frog eggs melanin were investigated by ultraviolet and visible spectrophotometer.The results indicate that melanin has favorable heat resistance and light stability. Oxidants and reducing agents had great effects on melanin. Preservation rate of color value decreased to 41. 3%when KMn O4 concentration was up to 50 g/L; Preservation rate of color value decreased to 41. 2%when Na2SO3 concentration increased to 50 g/L and brown frog egg was kept for 48 h. Fe3+greatly affected melanin of brown frog eggs,and preservation rate of color value decreased by 13. 4 ± 0. 2%.Other ions had smaller effects on melanin,the sequence of whose effect was Ca2+

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