贵州核桃仁矿质元素迁移特征及营养和健康风险评价

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中图分类号：TS255.6：X56：X820.4 文献标志码：A

文章编号：1672-2043（2025）12-3070-12 doi：10.11654/jaes.2025-0142

Translocationand nutrition/health risks assssment of mineral elements in walnut kernel growing in Guizhou LUXiang，HUANGAnxiang，BAIWenlian，ZHANG Zhiqi，LIDan，YANGShoulu'，ZHOUHua

（1.GuizhoAcadeyofForetryGang5O，na;GuzouLiingRockyDesertificationEcosystematioalOatiod Research Station，Liping55730o，China）

Abstract：Tovestigatetgratioaracteristsfnralutrntsndaetalsintsalteelste，slt nutrionalvalueandhealthisksofmineralelementsiwalutkerels，thissudydeterinedhecontentsofminerallementsin6pis ofwalnutkerelsandtheirorespondingsoilsaplescollcedfrom2OoutiesinGuzouProvince.Theenchmentaracteristics， nutritionalvalue，ndhealthrisksofmineralelementsinGuizhouwalnutkerelswereanalyzed.Resultsshowedthateaveragontents ofFe，Mn，Cu，Zn，Se in walnut kernels were 41.1，81.4，22.4，32.5，0.17 mg kg-1 ，respectively， with migration capacities ordered as Cu> Zn > Mn>Se>Fe.SomewalutkernelsamplesexceededthenationalstandardtheNationalFoodSafetyStandard—MaximumLevelsof Contaminants in Foods（GB 2762—2022）safety limit for Pb in nuts and seeds（0.2 mg. kg-1 ）， with an over standard rate of 0.6% .However， nosignificantcorelationwasobseedbetwnPbontetinthesewalutkerelsadtheirespondingsoilsAmongsoilsaples，te percentages exceeding risk screening values for Pb，Cd，As，Cr，Hg were0，56.8 % ， 18.2% ， 14.8% ， 1.1% ，respectively. The proportions exceeding risk control values for Cd and As were 10.8% and 2.3% ， with migration capacities ordered as Cd>Hg>C r> Pb>As. The average nutritionalindex（INQ）valueforCuandMninwalnutkernelsexceded2，whilebothsingle-elementtarethazardquotients（THQ）and multi-elementhazard indices （HI） for heavy metals were below 1.The study indicates that walnut kernels from Guizhou contain abundant mineralnutrientsandcanserveasapotentialdietarysourceforhumanintakeofCuandMn，withoutposingsignificantheavymetal exposure risks.

Keywords：walnutkernel;mineralelements;translocationcharacteristics;nutritionalevaluation;healthriskasessment

1材料与方法

矿质营养元素是人体生长发育必需的化学元素，如Fe、 MnCuZnSe 等，人体不能自行合成矿质营养元素，而需从食物中获取。（剩余23610字）