ICP-OES analysis of Lithium in honey, royal jelly, bee bread, propolis, and bees following microwave-assisted sample preparation

IF 1.4 3区农林科学 Q4 FOOD SCIENCE & TECHNOLOGY Journal of Consumer Protection and Food Safety Pub Date : 2024-09-16 DOI:10.1007/s00003-024-01527-3

Annemarie Richter, Max Rüdiger, David M. Schumacher, Corinna Kürbis

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Abstract

Lithium is a natural, ubiquitously-occurring alkali metal found in varying amounts in foods like honey. Recently, lithium chloride (LiCl) was described to be effective against varroosis, a parasitic disease leading to loss of honey bee colonies with limited therapy options. However, LiCl treatment is not currently authorized for use in honey bee colonies. Such treatment might result in elevated lithium amounts in honey. To address this, a robust method for quantifying lithium in honey was validated using a microwave-assisted digestion technique combined with Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES), achieving detection levels as low as 0.151 mg/kg. The method was applied to 65 commercially available, randomly chosen honey samples, all of which had lithium levels below the limit of quantitation (LOQ). Furthermore, the method was successfully adapted for use with more complex bee matrices, including royal jelly, bee bread, propolis, and whole bees.

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微波辅助样品制备后对蜂蜜、蜂王浆、蜂巢面包、蜂胶和蜜蜂中的锂进行 ICP-OES 分析

锂是一种天然、普遍存在的碱金属，在蜂蜜等食物中含量不一。最近，氯化锂（LiCl）被描述为对变节虫病有效，变节虫病是一种导致蜜蜂失去蜂群的寄生虫病，治疗方法有限。然而，氯化锂治疗目前尚未被批准用于蜜蜂群落。这种治疗可能会导致蜂蜜中的锂含量升高。为解决这一问题，我们采用微波辅助消化技术结合电感耦合等离子体-光发射光谱法（ICP-OES），验证了一种可靠的蜂蜜中锂定量方法，其检测水平低至 0.151 mg/kg。该方法被应用于 65 个随机抽取的市售蜂蜜样品，所有样品的锂含量均低于定量限（LOQ）。此外，该方法还成功适用于更复杂的蜜蜂基质，包括蜂王浆、蜂面包、蜂胶和整只蜜蜂。

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来源期刊

Journal of Consumer Protection and Food Safety Veterinary-Food Animals

CiteScore

3.70

自引率

4.20%

发文量

审稿时长

>12 weeks

期刊介绍： The JCF publishes peer-reviewed original Research Articles and Opinions that are of direct importance to Food and Feed Safety. This includes Food Packaging, Consumer Products as well as Plant Protection Products, Food Microbiology, Veterinary Drugs, Animal Welfare and Genetic Engineering. All peer-reviewed articles that are published should be devoted to improve Consumer Health Protection. Reviews and discussions are welcomed that address legal and/or regulatory decisions with respect to risk assessment and management of Food and Feed Safety issues on a scientific basis. It addresses an international readership of scientists, risk assessors and managers, and other professionals active in the field of Food and Feed Safety and Consumer Health Protection. Manuscripts – preferably written in English but also in German – are published as Research Articles, Reviews, Methods and Short Communications and should cover aspects including, but not limited to: · Factors influencing Food and Feed Safety · Factors influencing Consumer Health Protection · Factors influencing Consumer Behavior · Exposure science related to Risk Assessment and Risk Management · Regulatory aspects related to Food and Feed Safety, Food Packaging, Consumer Products, Plant Protection Products, Food Microbiology, Veterinary Drugs, Animal Welfare and Genetic Engineering · Analytical methods and method validation related to food control and food processing. The JCF also presents important News, as well as Announcements and Reports about administrative surveillance.