Abstract

Olive oil mills and enterprises demand fast and low-cost detection of adulteration from vegetable and seed oils, such as hazelnut, sunflower, soybean, cannabis, corn and almond oil, according to their food fraud mitigation plans. This study describes a method for the detection of adulteration using the k₂₃₂ and k₂₆₈ (specific extinctions at wavelengths 232 nm and 268 nm, respectively), and the Δk (the variation of the absolute value of the extinction) values as independent variables in chemometric approaches. Different percentages of seed oils were added to the extra virgin olive oil and the results showed that vegetable and seed oil adulteration above 7.5% (w/w) was easily detected. The developed methodology is low cost, rapid, and simple for adoption by olive oil enterprises in comparison to other techniques. This is the first time that such an easy method may be applied for the olive mills for the protection of consumers using a well-organized food fraud mitigation plan.

摘要

根据他们的食品欺诈缓解计划，橄榄油厂和企业需要快速、低成本地检测植物油和种子油中的掺假，例如榛子油、向日葵油、大豆油、大麻油、玉米油和杏仁油。本研究描述了一种使用k ₂₃₂和k ₂₆₈（分别在 232 nm 和 268 nm 波长下的特定消光）和 Δ k检测掺假的方法（消光绝对值的变化）值作为化学计量方法中的自变量。在特级初榨橄榄油中添加了不同百分比的种子油，结果表明，植物油和种子油掺假超过 7.5% (w/w) 很容易被检测到。与其他技术相比，所开发的方法成本低、快速且易于被橄榄油企业采用。这是第一次使用组织良好的食品欺诈缓解计划将这种简单的方法应用于橄榄磨坊以保护消费者。