基于锶元素含量及其稳定同位素比值的库尔勒香梨产地鉴别

doi:10.7506/spkx1002-6630-20200814-184

食品科学 ›› 2021, Vol. 42 ›› Issue (18): 240-245.doi: 10.7506/spkx1002-6630-20200814-184

基于锶元素含量及其稳定同位素比值的库尔勒香梨产地鉴别

赵多勇，康露，王智，乔坤云，刘志虎，袁玉伟，郭航，张瑞，王成

（1.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（乌鲁木齐），新疆农产品质量安全重点实验室，新疆乌鲁木齐 830091；2.酒泉市林果服务中心，甘肃酒泉 735008；3.浙江省农业科学院农产品质量安全与营养研究所，浙江杭州 310021）

发布日期:2021-09-29
基金资助:
国家自然科学基金地区科学基金项目（41563002；31960504）；自治区重点实验室开放课题（2019D04013）；自治区天山雪松计划项目（2018XS15）；自治区天山英才工程项目（[2017]711号）；新疆农业科学院农业科技创新平台能力提升建设专项（xnypt006）

Geographical Origin Identification of Korla Fragrant Pear Based on Strontium Content and Stable Isotopic Ratio

ZHAO Duoyong, KANG Lu, WANG Zhi, QIAO Kunyun, LIU Zhihu, YUAN Yuwei, GUO Hang, ZHANG Rui, WANG Cheng

(1. Laboratory of Quality and Safety Risk Assessment for Agro-products (ürümqi), Ministry of Agriculture and Rural Affairs, Xinjiang Key Laboratory of Agro-products Quality and Safety, Institute of Quality Standards & Testing Technology for Agro-products, Xinjiang Academy of Agricultural Sciences, ürümqi 830091, China; 2. Jiuquan Forest Fruit Technology Services Network, Jiuquan 735008, China; 3. Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China)

Published:2021-09-29

摘要/Abstract

摘要： 开展锶（Sr）元素含量及其稳定同位素比值鉴别库尔勒香梨产地的可行性研究，明确新疆库尔勒香梨87Sr/86Sr同位素特征值，为库尔勒香梨产地真实性鉴别提供科学依据。以陕西红香酥梨和甘肃香梨作为对照，借助电感耦合等离子质谱分析新疆库尔勒香梨与对照样品及其对应果园土壤的Sr元素含量，采用多接收器电感耦合等离子质谱分析库尔勒香梨果皮与果肉87Sr/86Sr同位素比值。通过方差分析比较不同产地、不同年际土壤及果实中Sr元素含量的差异，探讨果实与土壤Sr元素含量的相关关系，以及不同产地果实87Sr/86Sr同位素比值与Sr元素含量的分布特征。结果表明：新疆、甘肃、陕西共3 个产地梨园土壤Sr含量存在显著差异（P＜0.05），不同年际间梨园土壤Sr含量不存在显著差异。果皮与果肉Sr元素含量存在极显著相关（P＜0.01），但二者与土壤Sr元素含量均不存在显著相关。3 个产地梨果肉/果皮Sr含量不存在显著差异。3 个产地87Sr/86Sr同位素比值存在显著差异（P＜0.05）。果皮Sr同位素更适合用于库尔勒香梨产地鉴别研究。本实验通过稳定同位素技术为库尔勒香梨产地鉴别提供参考。

关键词: 库尔勒香梨；锶；同位素；产地溯源；真实性鉴别

Abstract: The purpose of this study is to evaluate the feasibility of the feasibility of identifying the geographical origin of Korla fragrant pear (KFP) by the strontium (Sr) content and 87Sr/86Sr isotopic ratio. Sr contents in Xinjiang KFPs, Shaanxi Hongxiangsu pears and Gansu fragrant pears as well as orchard soils for each fruit were analyzed by inductively coupled plasma mass spectrometry (ICP-MS), and 87Sr/86Sr isotopic ratios in the peel and pulp of KFP were determined by multiple collector inductively coupled plasma mass spectrometry (MC-ICP-MS). The difference in Sr contents among the peel and pulp of the three fruits as well as the orchard soils, among the peel and pulp of KFP from different regions in Xinjiang, and among KFP orchard soils collected in different years was investigated by analyses of variance (ANOVA). The correlation between Sr contents in fruits and soils was analyzed and the distribution characteristics of 87Sr/86Sr isotope ratio and Sr contents in pear fruits from different geographical origins were discussed. The results showed that there were significant differences in the contents of Sr in pear orchard soils from Xinjiang, Gansu and Shaanxi Provinces (P < 0.05), but not in KFP orchard soils collected in different years. The contents of Sr in peel and pulp were significantly correlated with each other (P < 0.01), but not with soil Sr content. There was a significant difference in 87Sr/86Sr isotopic ratio (P < 0.05) but not Sr content in the pulp and peel of the three fruits. To sum up, KFP peel is more suitable for geographical origin identification by Sr isotope technique. It is feasible to identify the geographical origin of KFP based on Sr isotopic ratio.

Key words: Korla fragrant pear; strontium; isotope; geographical origin traceability; authenticity identification

中图分类号:

TS201.6

赵多勇，康露，王智，乔坤云，刘志虎，袁玉伟，郭航，张瑞，王成. 基于锶元素含量及其稳定同位素比值的库尔勒香梨产地鉴别[J]. 食品科学, 2021, 42(18): 240-245.

ZHAO Duoyong, KANG Lu, WANG Zhi, QIAO Kunyun, LIU Zhihu, YUAN Yuwei, GUO Hang, ZHANG Rui, WANG Cheng. Geographical Origin Identification of Korla Fragrant Pear Based on Strontium Content and Stable Isotopic Ratio[J]. FOOD SCIENCE, 2021, 42(18): 240-245.

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基于锶元素含量及其稳定同位素比值的库尔勒香梨产地鉴别

Geographical Origin Identification of Korla Fragrant Pear Based on Strontium Content and Stable Isotopic Ratio

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