甜瓜中矿物元素分布特征及其相关调控机制研究  

Study on the Distribution Characteristics of Mineral Elements and Their Regulatory Mechanisms in Sweet Melon

作　　者：沈琦 玛合巴丽·托乎塔尔汉 曹叶青 刘峰娟 陶永霞 王成[2] SHEN Qi;Mahebali Tuohutaerhan;CAO Yeqing;LIU Fengjuan;TAO Yongxia;WANG Cheng(School of Food Science and Pharmacy,Xinjiang Agricultural University,Urumqi,Xinjiang 830052;Department of Scientific Research,Xinjiang Academy of Agricultural Sciences,Urumqi,Xinjiang 830091;Institute of Agricultural Quality Standards and Testing Technology/Agricultural Products Quality and Safety Risk Assessment Laboratory of the Ministry of Agriculture and Rural Affairs/Xinjiang Key Laboratory of Agricultural Products Quality and Safety,Xinjiang Academy of Agricultural Sciences,Urumqi,Xinjiang 830091;Ruoqiang Agricultural Products Quality and Safety Inspection Center,Ruoqiang,Xinjiang 841800)

机构地区：[1]新疆农业大学食品科学与药学学院,新疆乌鲁木齐830052 [2]新疆农业科学院科研管理处,新疆乌鲁木齐830091 [3]新疆农业科学院农业质量标准与检测技术研究所/农业农村部农产品质量安全风险评估实验室/新疆农产品质量安全重点实验室,新疆乌鲁木齐830091 [4]若羌县农产品质量安全检验检测中心,新疆若羌841800

出　　处：《核农学报》2021年第10期2305-2310,共6页Journal of Nuclear Agricultural Sciences

基　　金：财政部和农业农村部:国家现代产业技术体系(CARS-25);农业科研体系有效支持推进农业检验检测技术进步的实现路径调研分析(CAQS-2020-05-13);新疆维吾尔自治区天山雪松计划(2017XS07)。

摘　　要：为明确甜瓜不同部位24种矿物元素的分布特征及其相关性,本研究以新疆甜瓜为试材,采用电感耦合等离子体质谱(ICP-MS)测定Cu、Ni、Cr、As、Pb、Cd、Fe、Al、Zn、B、Mn、Sr等24种矿物质元素含量,并分析甜瓜中重金属与其他矿物质元素分布特征及其内在相关性。结果表明,甜瓜中矿物元素含量在瓜皮上的富集大于瓜肉中的富集,重金属与微量元素在甜瓜瓜皮与瓜肉的分布表现为两端含量高,越靠近中间含量越低。常量元素在瓜皮的分布表现为两端含量高,越靠近中间含量越低,而在瓜肉中表现为两端含量低,越靠近中间含量越高。多元相关性分析热感图结果表明,Ni与Mo、Cr与Na、As与Na呈中度负相关,其他V、K、P等元素均与重金属元素呈正相关。研究表明,甜瓜不同部位矿物元素富集水平不同,部分元素与重金属的富集具有协同或拮抗作用,后续可通过调控相关元素降低甜瓜重金属富集水平提高甜瓜安全性。This study aimed to clarify the distribution characteristics and correlation of 24 mineral elements in different parts of melon. Xinjiang melon was used as the test material to determine 24 mineral elements including as Cu, Ni, Cr, As, Pb, Cd, Fe, Al, Zn, B, Mn and Sr by inductively coupled plasma mass spectrometry(ICP-MS). The distribution characteristics and internal correlation of heavy metals and other mineral elements in melon was analyzed. The results show that, the enrichment of mineral elements in melon skin was greater than that in melon meat. The distribution of heavy metals and trace elements in melon skin and melon meat showed high contents at both ends, and the lower, the closer to the middle. It was similar for the distribution of major elements on the melon peel. However, the content of maior elements at both ends was low, and the content closer to the middle was higher in the melon meat. The thermal diagram results of multivariate correlation analysis showed that Ni had a moderate negative correlation with Mo, Cr and Na, As and Na, and other elements such as V, K and P had a positive correlation with heavy metal elements. Therefore the enrichment of mineral elements was different in different parts of melon, and some elements had synergistic or antagonistic effects with the enrichment of heavy metals. In the future, the enrichment level of heavy metals in melon could be reduced by regulating the related elements to improve the safety of melon.

关 键 词：甜瓜 电感耦合等离子体质谱(ICP-MS) 矿物元素特征 重金属分布 调控机制 

分 类 号：S652[农业科学—果树学]