School of Science, University of Waikato, Private Bag 3105, Hamilton 3240, New Zealand.
School of Science, University of Waikato, Private Bag 3105, Hamilton 3240, New Zealand.
Food Chem. 2021 Nov 1;361:130110. doi: 10.1016/j.foodchem.2021.130110. Epub 2021 May 15.
Determination of geographical origin of honey is important to consumers to confirm authenticity. This study investigated the elemental fingerprint of 181 honey samples collected from apiary sites in six regions of North Island, New Zealand to determine if differences were observed due to region of collection or land use surrounding the hive (e.g. agricultural, rural, urban). Using principal component analysis, soil related elements (Ca, K, Mg, Mn, Na) provided 75.2% discrimination of samples in the first two principal components. Overall, low concentrations of heavy metals were observed; lead was present in close proximity to highly trafficked roads (28.1% of samples; 9.50-76.5 µg kg) and cadmium was primarily present in honey collected from agricultural land in the Waikato (<51.6 µg kg). The use of an elemental fingerprint of New Zealand honey may be advantageous to determine the geographical origin compared to honey produced from other countries.
确定蜂蜜的地理来源对消费者来说很重要，可以确认其真实性。本研究调查了来自新西兰北岛六个地区养蜂场的 181 个蜂蜜样本的元素指纹，以确定是否因采集区域或蜂巢周围的土地利用方式（如农业、农村、城市）而观察到差异。使用主成分分析，土壤相关元素（Ca、K、Mg、Mn、Na）在前两个主成分中提供了 75.2%的样本区分度。总体而言，重金属浓度较低；铅存在于交通繁忙的道路附近（28.1%的样本；9.50-76.5 µg kg），镉主要存在于怀卡托农业用地采集的蜂蜜中（<51.6 µg kg）。与来自其他国家的蜂蜜相比，使用新西兰蜂蜜的元素指纹可能有利于确定其地理来源。
