| 稳定同位素技术鉴别库尔勒香梨产地可行性研究 |
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| 引用本文： | 赵多勇,李安,郭航,康露,琚艳君,玛尔哈巴 ,帕尔哈提,王瑜洁,乔坤云.稳定同位素技术鉴别库尔勒香梨产地可行性研究[J].核农学报,2020,34(Z1):37-42. |
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| 作者姓名： | 赵多勇 李安 郭航 康露 琚艳君 玛尔哈巴 帕尔哈提 王瑜洁 乔坤云 |
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| 作者单位： | 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/新疆农产品质量安全重点实验室,新疆 乌鲁木齐 830091;2北京农业质量标准检测技术研究中心, 北京 100097;3新疆农业大学食品科学与药学学院,新疆 乌鲁木齐 830052 |
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| 基金项目： | 新疆维吾尔自治区重点实验室开放课题(2019D04013),国家自然科学基金项目(31960504),新疆维吾尔自治区天山雪松计划(2018XS15),新疆农业科学院农业科技创新平台能力提升建设专项(xnypt006) |
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| 摘 要： | 为开展碳、氮、氢、氧(C、H、O、N)稳定同位素鉴别库尔勒香梨产地的可行性研究,明确新疆库尔勒香梨δ13C、δ15N、δ2H、δ18O值,本研究以甘肃香梨和陕西红香酥梨作为对照,采用稳定同位素比值质谱仪(IRMS)分析新疆库尔勒香梨与对照样品的δ13C、δ15N、δ2H、δ18O值,并采用正交校正的偏最小二乘判别分析(OPLS-DA) 鉴别新疆库尔勒香梨产地真实性。结果表明,新疆、甘肃两个产区香梨与陕西产区红香酥梨的δ13C、δ15N、δ2H、δ18O值存在显著差异(P<0.05)。新疆产区的66份库尔勒香梨判别准确率为95.45%;甘肃产区的20份香梨样品判别准确率为60%;陕西产区的23份红香酥梨样品判别准确率为95.65%。C、N、H、O 4种稳定同位素可有效鉴别新疆库尔勒香梨和陕西红香酥梨,但在新疆库尔勒香梨与甘肃香梨鉴别方面,误判率较高,如果能结合其他鉴别技术,则有可能出现较好的鉴别效果。本研究为库尔勒香梨产地真实性鉴别提供了科学依据。
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| 关 键 词： | 库尔勒香梨 稳定同位素 产地溯源 真实性鉴别 |
| 收稿时间： | 2020-11-08 |
Geographical Origins Identification of Korla Fragrant Pear Based on Stable Isotope Ratio |
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| ZHAO Duoyong,LI An,GUO Hang,KANG Lu,JU Yanjun,Maerhaba Paerhati,WANG Yujie,QIAO Kunyun.Geographical Origins Identification of Korla Fragrant Pear Based on Stable Isotope Ratio[J].Acta Agriculturae Nucleatae Sinica,2020,34(Z1):37-42. |
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| Authors: | ZHAO Duoyong LI An GUO Hang KANG Lu JU Yanjun Maerhaba Paerhati WANG Yujie QIAO Kunyun |
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| Abstract: | The purpose of this study is to analyze the δ13C、δ15N、δ2H、δ18O isotopic ratio characteristic value of Xinjiang Korla Fragrant Pear(KFP), and to explore the feasibility of identifying the geographical origins of KFP by stable C, N, H, O isotope. Shaanxi Hongxiangsu pear and Gansu Fragrant pear were used as control samples, the δ13C、δ15N、δ2H、δ18O value of KFP and control samples were analyzed by isotope ratio mass spectrometry (IRMS), and the orthogonal correction partial least squares discriminant analysis (OPLS-DA) was used to identify the authenticity of KFP. There were significant differences in the δ13C、δ15N、δ2H、δ18O value among Xinjiang, Gansu and Shaanxi Province (P<0.05). The accuracy rate of KFP in Xinjiang were 95.45%, while those of Hongxiangsu pear in Shaanxi Province were 95.65%. However, the accuracy rate of Gansu Province was low, which was 60%. In conclusion, C, N, H and O can effectively identify Xinjiang KFP and Shaanxi Hongxiangsu pear, but the misjudgment rate is high to discriminate Xinjiang KFP and Gansu fragrant pear. Better identification results might be obtained when combined with other identification techniques. |
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| Keywords: | Korla Fragrant Pear stable isotope geographical origins traceability authenticity identification |
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