文献类型：期刊文献

中文题名：香港牡蛎中锌元素的分布及存在形态

英文题名：Distribution and Existential Forms of Zinc in Crassostrea hongkongensis

作者：韩蓉[1];曹文红[1,2];章超桦[1,2];秦小明[1,2];高加龙[1,2];郑惠娜[1,2]

机构：[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,广东湛江524088;[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,辽宁大连116034

年份：2021

卷号：41

期号：4

起止页码：120

中文期刊名：广东海洋大学学报

外文期刊名：Journal of Guangdong Ocean University

收录：CSTPCD、、北大核心、北大核心2020

基金：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)。

语种：中文

中文关键词：香港牡蛎;锌;分布;存在形态;锌多糖

外文关键词：Crassostrea hongkongensis;zinc;distribution;existential form;Zn polysaccharides

中文摘要：【目的】研究香港牡蛎(Crassostrea hongkongensis)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(1267.51±2.85)μg/g(干基,下同),组织器官中鳃的锌质量分数最高,达(2242.63±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。

外文摘要：【Objective】To study the distribution and existential forms of zinc in oyster(Crassostrea hongkongensis)and to provide basic data for its development and utilization.【Methods】The contents of zinc in whole viscera,gill,mantle,adductor muscle,visceral mass and the extraction components of oyster were detected by ICP-MS,and its existential forms were analyzed.【Results】The results showed that the zinc content in the whole viscera was(1267.51±2.85)μg/g(dry basis,the same below),the content of zinc in gill was the highest,reaching(2242.63±22.10)μg/g.The percent of zinc in the visceral mass was up to 45.46%of total Zn in the whole viscera of the oyster.The ratio of inorganic to organic zinc in the whole viscera of the oyster is about 1.55∶1.A water-soluble polysaccharide rich in Zn was extracted from the eviscerated oyster.CT1 obtained after water-soluble polysaccharide purified has a high zinc content of 922.18μg/g.Infrared spectrum analysis showed that there were several functional groups which could coordinate with zinc.【Conclusion】Crassostrea hongkongensis is rich in Zn,and its distribution is different in different tissues.Inorganic zinc content is higher than organic zinc.Protein zinc and polysaccharide zinc are two important forms of the organic zinc,and the water-soluble polysaccharide can combine more zinc.