韩蓉,曹文红,章超桦,秦小明,高加龙,郑惠娜

• 1:广东海洋大学食品科技学院//国家贝类加工技术研发分中心(湛江)//广东省水产品加工与安全重点实验室//广东省海洋生物制品工程实验室//广东省海洋食品工程技术研究中心//水产品深加工广东普通高等学校重点实验室
• 2:大连工业大学海洋食品精深加工关键技术省部共建协同创新中心

摘要(Abstract)：

【目的】研究香港牡蛎(Crassostreahongkongensis)中锌元素的分布及存在形态,为其开发利用提供基础数据。【方法】采用ICP-MS技术检测锌元素在全脏器、鳃、外套膜、闭壳肌、内脏团及牡蛎提取组分中的含量,初步分析其存在形态。【结果】牡蛎全脏器锌质量分数达(1 267.51±2.85)μg/g(干基,下同),组织器官中鳃的锌质量分数最高,达(2 242.63±22.10)μg/g;内脏团中的锌占牡蛎全脏器总锌的占比达45.46%;牡蛎全脏器中无机态与有机态锌元素比例约为1.55∶1。从去内脏牡蛎中提取到一种富锌水溶性多糖组分,进一步分离的多糖组分CT1锌质量分数高达922.18μg/g,红外光谱分析表明其存在多种可与锌配位的官能团。【结论】香港牡蛎富含锌元素,其分布存在组织差异,且无机态锌含量高于有机态锌,蛋白锌和多糖锌是有机态锌的两种重要存在形态,水溶性多糖结合锌较多。

关键词(KeyWords)： 香港牡蛎;锌;分布;存在形态;锌多糖

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划课题（2018YFD0901105）;; 广东海洋大学“冲一流”学科建设科研项目（231419014）

作者(Author): 韩蓉,曹文红,章超桦,秦小明,高加龙,郑惠娜

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