食品添加剂D-葡萄糖酸-δ-内酯含量的测定方法研究  

Research on the Determination Method of the Content of Food Additives-D-Glucono Delta-lactone Products

作　　者：陈建文[1] 朱友亮[1] 丁凤兰[1] 周荣荣[1] 陈长征 崔光水 

机构地区：[1]日照市疾病预防控制中心,山东日照276826 [2]凯翔生物化工有限公司,山东日照262300

出　　处：《预防医学论坛》2009年第5期434-436,共3页Preventive Medicine Tribune

摘　　要：[目的]建立一种简便、可靠的测定食品添加剂D-葡萄糖酸-δ-内酯含量的分析方法。[方法]采用紫外分光光度法在波长205nm的条件下测定D-葡萄糖酸-δ-内酯溶液的吸光度值，通过D-葡萄糖酸-δ-内酯溶液与吸光度值的的线性关系，来计算D-葡萄糖酸-δ-内酯的质量分数。[结果]该方法在0．025～3mg／ml范围内有良好的线性关系，精确度试验3种不同加入量的D-葡萄糖酸-δ-内酯溶液的RSD（％）分别为5．38、1．63、0．60，回收率试验3种不同加入量其回收率（％）分别为97．5、100．3、100．2。[结论]该方法可应用于食品添加剂D-葡萄糖酸-δ-内酯含量的测定，能更好地指导食品添加剂D-葡萄糖酸-δ-内酯的生产与使用。[Objective]To offer portable and reliable analysis method for D-Glucono delta-lactone determinations in food additives-D-Glucono delta-lactone products. [Methods]Absorbance value of the solution of D-Glucono delta-lactone in food additives-D-Glucono delta-lactone products was determined in wavelength of 205nm with ultraviolet spectrophotometric method . The score of the quality of D-Glucono delta-lactone was calculated through the linear relation of D-Glucono delta-lactone solution to the absorbance value. [Results]It presented fine linear relation in the range of 0. 025 - 3 mg/ml; the RSD （%） index of precision of 3 D-Glucono delta-lactone; 5.38,1.63,0.60; the recovery rate（%） of 3 addition.. 97.5, 100. 3,100. 2. [Conclusion]The method is suitable for D-Glucono delta-lactone determination in food additives-D-Glucono delta-lactone products,A better instructor to manufacturing and operation of food additives-D-Glucono delta-lactone products.

关 键 词：紫外分光光度法 波长205nm D-葡萄糖酸-δ-内酯 

分 类 号：R151.2[医药卫生—营养与食品卫生学]