鱿鱼墨黑色素络合Cu^(2+)的活性研究

Active Research of Squid Melanin Absorbing Cu^2(+)

采用高速离心法精制的鱿鱼墨黑色素与Cu^(2+)作用,探究p H、温度、时间、黑色素添加量、Cu^(2+)浓度及盐度等因素对鱿鱼墨黑色素吸附Cu^(2+)的影响。结果表明:当p H为4,温度为60℃,吸附时间为10h,黑色素添加量为0.025g,Cu^(2+)浓度为8 mmol·L-1时,鱿鱼墨黑色素对Cu^(2+)的吸附量最大,达到70%。不同浓度的氯化钠和氯化镁对黑色素吸附Cu^(2+)的影响较小,氯化铁对黑色素吸附Cu^(2+)的影响很大,随着氯化铁浓度的增大,吸附量急剧减小。

Let squid melanin prepared by high- speed centrifugation to absorb Cu^（2＋）,and research active influence of p H,temperature,time,the amount of squid melanin,Cu^（2＋） concentration,salinity and other factors on squid melanin absorption of Cu^（2＋）. The results showed：when the p H is 4,the temperature is 60℃,melanin dosage is 0.025 g,adsorption time is 10 h,Cu^（2＋）concentration 8 mmol·L- 1,absorption rateof squid melanin to Cu^（2＋） isbiggest,about to70%. Different concentrationsof sodium chloride and magnesium chloride results less influences on melanin complexing Cu^（2＋）,ferric chloride cause great influence on melanin complexing Cu^（2＋）.