胭脂红酸测定方法及稳定性研究  

Study on Stability and Determination Methods of Carminic Acid Extracted from Dactylopius coccus Costa

作　　者：张建云[1] 李志国[1] 赵杰军[1] 杨时宇[1] 包松莲[1] 

机构地区：[1]中国林业科学研究院资源昆虫研究所,云南昆明650224

出　　处：《食品科学》2007年第8期321-326,共6页Food Science

基　　金：云南省"十五"攻关项目(2001NG25);国家林业局"948"引进项目(2001-12)

摘　　要：对胭脂虫中胭脂红酸测定方法及稳定性研究表明:用标准曲线法与FCC标准法测定胭脂红酸的结果一致。在遮光、室内散射光、温度20～90℃、pH6～8、不同浓度的盐酸、氧化剂H2O2、低浓度的还原剂Na2SO3胭脂红酸液是稳定的,而pH4～5和9～11胭脂红酸溶液相对稳定,在日光、白炽灯、不同浓度的氢氧化钠、高浓度的还原剂Na2SO3胭脂红酸溶液是不稳定的;添加Cu2+、Mg2+、K+的不同浓度对胭脂红酸溶液是稳定的;Zn2+、Ca2+的不同浓度对胭脂红酸溶液相对稳定;Fe3+72h出现黑色沉淀,呈不稳定状态。In this paper, the determining means and stabilities of carminic acid extracted from Dactylopius cossus Costa were studied in different conditions. The results showed that the carminic acid can be determined by means of standard curve （SCM） consistent with the means of the FCC （Food Chemicals Codex） standard （the means of formula, FM）. Carmim＇c acid is stable under conditions of darkness and indoor scattered rays, temperature range 20-90℃, oxidizer different concentrations of H2O2, different HC1 concentrations, and low consistency reducer Na2SO3. Adding Cu^2＋, Mg^2＋ and K^＋, it is relative stable under either pH4-5 and 9-11 or different concentrations of Zn^2＋ and Ca^2＋. It is unstabe in sunshine, incandescent lamp, various concentrations of NaOH, high consistency reducer Na2SO3, or adding Fe^3＋ for 72 h. The investigating results supply the scientific basics for the stipulated standard and the processing utilization for the raw material and products of cochineal insects.

关 键 词：胭脂虫 胭脂红酸 测定方法 稳定性 

分 类 号：S899.3[农业科学—特种经济动物饲养]