B-HIVE: Beeswax hydrogen isotopes as validation of environment. Part I: Bulk honey and honeycomb stable isotope analysis
B-HIVE: Beeswax hydrogen isotopes as validation of environment. Part I: Bulk honey and honeycomb stable isotope analysis
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B-HIVE：蜂蜡氢同位素作为环境验证。
DOI：
10.1016/j.foodchem.2010.09.050
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发表时间：
2011
期刊：
影响因子：
8.8
通讯作者：
J. Ehleringer
中科院分区：
文献类型：
--
作者：
L. Chesson;B. Tipple;Brad R. Erkkila;T. Cerling;J. Ehleringer
稳定同位素分析是检测蜂蜜掺假的一种成熟方法。我们将其应用扩展到包括使用氢（δ 2 H）和氧（δ 18 O）同位素的蜂蜜和蜂窝原产地分配。我们观察到，由于水分吸收和糖与水蒸气之间的H原子交换，液体蜂蜜的δ 2 H和δ 18 O值有可能发生变化。这表明液体蜂蜜在地理定位方面的用途有限，因为样本将记录分析位置的湿度。配对的液体蜂蜜和蜂窝的δ 2 H值显着相关;因此，我们建议使用蜡δ 2 H值的原产地分配。我们观察到蜂蜡δ 2 H值与蜂巢位置的年平均降水量和自来水δ 2 H值之间存在显著相关性，这表明蜂蜡δ 2 H值记录了水δ 2 H值的地理变化。这项调查表明，稳定同位素的原产地分配的承诺，使用蜂窝蜡δ 2 H值，补充碳同位素分析，以检测掺假。
Stable isotope analysis is an established method for detecting honey adulteration. We extend its application to include honey and honeycomb region-of-origin assignment using hydrogen (δ2H) and oxygen (δ18O) isotopes. We observed that liquid honey δ2H and δ18O values had the potential to change because of water absorption and H atom exchange between sugars and water vapour. This suggested that liquid honey has limited use for geo-location, because specimens will record analysis location humidity. Paired liquid honey and honeycomb δ2H values were significantly correlated; therefore, we propose using wax δ2H values for region-of-origin assignment. We observed significant correlations between beeswax δ2H values and both mean annual precipitation and tap water δ2H values predicted for hive locations, suggesting that geographical variation in water δ2H values are recorded by beeswax δ2H values. This survey demonstrates the promise of stable isotopes for region-of-origin assignment, using honeycomb wax δ2H values, which complements carbon isotope analysis to detect adulteration.