崂山绿茶脱除胶州湾蛤蜊体内镉的研究  

Studies on Removing Cadmium from Jiaozhou Bay Clam by Laoshan Green Tea

作　　者：张双灵[1,2] 张忍[1,2] 张堃[1,2] 张玉娜[3] 赵宏坤[1,2] 

机构地区：[1]青岛农业大学食品科学与工程学院,山东青岛266109 [2]山东省肉类食品质量控制工程技术研究中心,山东青岛266109 [3]青岛农业大学分析测试中心,山东青岛266109

出　　处：《中国食品学报》2014年第8期174-179,共6页Journal of Chinese Institute Of Food Science and Technology

基　　金：山东省高等学校科技计划项目(J12LD05);"十二五"国家科技支撑计划课题(2012BAK17B05);国家自然科学基金项目(31271963)

摘　　要：目的：采用崂山绿茶冲泡液结合海水暂养脱除蛤蜊体内的镉。方法：将蛤蜊分为对照、A、B、C 4组,在4L海水中分别加入0,100,150,200 mL绿茶冲泡液暂养,用电感耦合等离子体发射光谱仪（ICP-OES）测定镉含量。结果：3组暂养的蛤蜊在0~20 d内,蛤蜊各部位的镉含量都明显下降;在25~30 d内,镉含量呈上升的趋势。其中鳃和内脏团镉含量下降最明显,20 d时达到最低值;斧足、外套膜、闭壳肌在25 d时达到最低值。相同暂养时间,C组镉含量最低,B组其次。结论：崂山绿茶冲泡液结合海水暂养能够有效脱除蛤蜊体内的镉,暂养时以加入100~150 mL崂山绿茶冲泡液为宜,暂养时间20~25 d。Removing cadmium from clams during rearing by Laoshan green tea brewed liquid was investigated. Method： clams were divided into 4 groups （control group, A, B and C） and reared in 4L seawater which was added 0, 100, 150 and 200mL green tea brewed liquid respectively. The cadmium contents were measured by ICP-OES. Results： the cadmium contents of all parts decreased obviously during 0-20 d while increased during 25-30 d. The most obvious downward trend of cadmium were the gills and visceral mass and their cadmium contents reached a minimum value at 20 d while ax foot, mantle and adductor at 25 d. At same rearing time, cadmium content of group-C was the lowest, group-B followed. Conclusions： it is an effective method to remove cadmium by rearing clams with green tea brewed liq- uid in seawater, and adding 100-150 mL green tea brewed liquid to seawater was more appropriate for clams, rearing time for 20 to 25 days.

关 键 词：镉 蛤蜊 绿茶 脱除 

分 类 号：TS254.4[轻工技术与工程—水产品加工及贮藏工程]