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首页> 外文期刊>RSC Advances >Zein bio-nanoparticles: a novel green nanopolymer as a dispersive solid-phase extraction adsorbent for separating and determining trace amounts of azorubine in different foodstuffs
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Zein bio-nanoparticles: a novel green nanopolymer as a dispersive solid-phase extraction adsorbent for separating and determining trace amounts of azorubine in different foodstuffs

机译：玉米醇溶蛋白生物纳米粒子：一种新型绿色纳米聚合物，作为分散的固相萃取吸附剂，用于分离和测定不同食品中的少量氮杂胺

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摘要

For the first time, a new, easy, and green method using zein nanoparticles as a dispersive solid-phase extraction (DSPE) adsorbent has been used for the preconcentration of azorubine (a well-known chemical dye additive) as a model compound in foodstuffs. The monitoring of chemical residues in food and the environment is an important function of countless laboratories around the world. SPE and DSPE are more flexible and efficient than liquid-liquid extraction in terms of simplicity, flexibility in choosing the adsorbent and low consumption of organic solvents. To the best of our knowledge, the use of zein nanoparticles as a dispersive solid-phase extraction material has not been reported thus far. The main advantages of this newly discovered research use of zein arise from four aspects: (A) zein biopolymer is a safe biomaterial that has characteristics that include biocompatibility, biodegradability, and low toxicity; (B) its hydrophobic property and unique solubility result in the easy fabrication of zein nanoparticles; (C) it has relatively suitable stability; and (D) composites or conjugates formed between zein and other compounds such as nanomaterials are easy to fabricate. Several experimental parameters, including the amount of sorbent, extraction time, pH and ionic strength of the sample solution, and desorption conditions, were evaluated. Under optimal experimental conditions, the linear correlation coefficient (r(2)) was 0.9978 at a concentration level of 0.005-4.500 mg mL(-1). The limit of detection was 2.8 ng mL(-1) and the relative standard deviations (RSD) for concentrations of 0.5 mg mL(-1) and 3.5 mg mL(-1) were 0.5% and 1.2% (n = 6), respectively. The present method was employed for the analysis of four different food samples (soft drink, pastel gummies, ice cream, and Smarties) and the recoveries of AZ that were obtained were in the range of 94.6% to 103.2%. The results showed that the proposed method was a green, convenient, and fast method for the determination of AZ as a model compound in food samples.
机译：首次使用ZEIN纳米粒子作为分散式固相萃取（DSPE）吸附剂的新的，简单和绿色的方法已经用于氮素（公知的化学染料添加剂）的前浓缩，作为食品中的模型化合物。在食品和环境中监测化学残留物是世界各地无数实验室的重要功能。 SPE和DSPE在简单的液体液体提取方面更加灵活，更有效，可灵活地选择吸附剂和低耗量的有机溶剂。据我们所知，迄今为止尚未报告使用ZEIN纳米粒子作为分散式固相提取材料的使用。这种新发现的Zein的主要优点来自四个方面：（a）玉米醇素生物聚合物是一种安全生物材料，其具有包括生物相容性，生物降解性和低毒性的特征; （b）其疏水性和独特的溶解度，易于制造ZEIN纳米粒子; （c）它具有相对合适的稳定性; （D）在玉米醇蛋白和其他化合物之间形成的复合材料或缀合物，例如纳米材料易于制造。评估了几种实验参数，包括吸附剂，提取时间，pH和样品溶液的离子强度和解吸条件的量。在最佳实验条件下，线性相关系数（R（2））为0.9978，浓度水平为0.005-4.500mg ml（-1）。检测限为2.8 ng ml（-1），浓度为0.5mg ml（-1）和3.5mg ml（-1）的相对标准偏差（RSD）为0.5％和1.2％（n = 6），分别。本方法用于分析四种不同的食物样品（软饮料，柔和的胶粘胶，冰淇淋和智汁奶油），得到的氧化氮的回收率在94.6％至103.2％的范围内。结果表明，该方法是一种绿色，方便，快速的方法，用于测定AZ作为食品样本中的模型化合物。

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  • 来源
    《RSC Advances》 |2016年第77期|共10页
  • 作者

    Zargar Behrooz; Pourreza Nahid; Bayat Elahe; Hatamie Amir;

  • 作者单位

    Shahid Chamran Univ Ahvaz Fac Sci Dept Chem Ahwaz Iran;

    Shahid Chamran Univ Ahvaz Fac Sci Dept Chem Ahwaz Iran;

    Shahid Chamran Univ Ahvaz Fac Sci Dept Chem Ahwaz Iran;

    Shahid Chamran Univ Ahvaz Fac Sci Dept Chem Ahwaz Iran;

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  • 正文语种 eng
  • 中图分类 化学;
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