Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, No. 1, Sec. 3, Chung-Hsiao East Rd., Taipei 106, Taiwan.
Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, No. 1, Sec. 3, Chung-Hsiao East Rd., Taipei 106, Taiwan.
Food Chem. 2022 Sep 30;389:133119. doi: 10.1016/j.foodchem.2022.133119. Epub 2022 Apr 29.
The contemporary dietary pattern is ruined by taste enhancers, flavoring agents, and preservatives. Propyl gallate (PG) is an imperative phenolic antioxidant cast-off to inhibit the oxidative mutilation in foodstuffs thereby preventing rancidity. Determination and annihilation of PG are extensively concerned because of its probable lethal effects on human well-being. Herein, we report an electrochemical sensor using SrAlO/f-CNF nanocomposite as an efficient electrode modifier with peculiar synergistic quantum confinement effects supporting the formation of heterojunction to facilitate electron transportation between its counterparts. The structural, morphological, and crystalline features of SrAlO/f-CNF nanocomposite was thoroughly examined. The proposed sensor possesses a wide linear range (0.1-1104.75 µM) with a remarkably low limit of detection (0.075 µM) and sensitivity (1.142 µA⋅µM⋅cm) measured at 0.2 V (vs. Ag/AgCl). The reliability of this sensor was evidenced through real-time monitoring of PG in edible oil which is beneficial for food quality monitoring and dropping the danger of abuse of PG in foods.
现代饮食模式被味道增强剂、调味剂和防腐剂破坏了。没食子酸丙酯 (PG) 是一种强制性的酚类抗氧化剂，用于抑制食品中的氧化损伤，从而防止酸败。由于 PG 对人类健康可能有致命影响，因此对其的测定和消除受到了广泛关注。在此，我们报告了一种使用 SrAlO/f-CNF 纳米复合材料作为高效电极修饰剂的电化学传感器，它具有特殊的协同量子限制效应，支持形成异质结，促进其对应物之间的电子传输。对 SrAlO/f-CNF 纳米复合材料的结构、形态和结晶特性进行了彻底检查。该传感器在 0.2 V（相对于 Ag/AgCl）下具有较宽的线性范围（0.1-1104.75 µM），检测限（0.075 µM）和灵敏度（1.142 µA⋅µM⋅cm）非常低。通过实时监测食用油中的 PG 来证明该传感器的可靠性，这有利于食品质量监测，并降低 PG 在食品中滥用的危险。
