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首页> 外文期刊>Journal of the Institute of Brewing >Measurement of antioxidants in distilled spirits by a silver nanoparticle assay
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Measurement of antioxidants in distilled spirits by a silver nanoparticle assay

机译：银纳米颗粒测定法测定蒸馏酒中的抗氧化剂

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摘要

Ingestion of antioxidants from the diet is associated with improved health. Total antioxidant capacity as gallic acid equivalents (GAE) of distilled spirits was determined using a modified and validated silver nanoparticle (SNaP) assay utilizing silver nanoparticles pre-capped with starch and microwave technology. GAE concentrations determined by the SNaP assay for the distilled spirits were validated by high-performance liquid chromatography (HPLC) measurements of key antioxidant components including gallic acid, ellagic acid, caffeic acid, syringic acid, syringaldehyde and 2-furaldehyde. SNaP assay and HPLC measurements of GAE were compared via statistical and graphical methods to demonstrate comparability. Application of the assay to 33 different distilled spirits demonstrated good agreement with published literature values, with the highest total antioxidant capacity values observed for bourbon samples followed by whisky, tequila and other types of liqueur. This study is novel for demonstrating the utility of a nanoparticle assay for determination of antioxidant capacity in distilled spirits with validation by HPLC. (C) 2018 The Institute of Brewing & Distilling
机译：从饮食中摄取抗氧化剂可以改善健康状况。使用经过改良和验证的银纳米颗粒（SNaP）测定法测定总的抗氧化能力，作为蒸馏酒的没食子酸当量（GAE），该方法使用预先用淀粉和微波技术封端的银纳米颗粒。通过SNaP分析确定的蒸馏酒的GAE浓度通过高效液相色谱（HPLC）测量来验证了关键抗氧化剂成分，包括没食子酸，鞣花酸，咖啡酸，丁香酸，丁香醛和2-呋喃醛。通过统计和图形方法比较了GAE的SNaP测定和HPLC测量，以证明可比性。该测定法在33种不同蒸馏酒中的应用与已发表的文献值具有很好的一致性，其中波旁威士忌，威士忌，龙舌兰酒和其他类型的利口酒的总抗氧化能力最高。这项研究是新颖的，用于证明纳米颗粒测定法可用于测定蒸馏酒中的抗氧化剂能力并通过HPLC进行验证。 （C）2018酿酒与蒸馏研究所

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