食品科学 ›› 2020, Vol. 41 ›› Issue (8): 14-20.doi: 10.7506/spkx1002-6630-20181218-199

• 食品化学 • 上一篇    下一篇

废弃黑葵花籽壳绿色制备金纳米粒子及其抗氧化和催化性能

关桦楠,宋岩,龚德状,刘博,韩博林,杨帆,刘晓飞,张娜   

  1. (哈尔滨商业大学食品工程学院,黑龙江 哈尔滨 150076)
  • 出版日期:2020-04-25 发布日期:2020-04-20
  • 基金资助:
    国家自然科学基金面上项目(31370649);国家自然科学基金青年科学基金项目(31201376); 黑龙江省自然科学基金项目(C2016034); 黑龙江省普通本科高等学校青年创新人新才培养计划项目(UNPYSCT-2016060); 中国博士后基金资助项目(2014T70304;2013M531009);黑龙江省博士后资助项目(LBH-Z13002); 哈尔滨商业大学科研项目(17XN026);哈尔滨商业大学青年创新人才支持计划项目(2019CX05); 哈尔滨商业大学研究生创新科研资金项目(YJSCX2017-462HSD;YJSCX2018-538HSD)

Green Synthesis of Gold Nanoparticles Using Waste Black Sunflower Seed Shell Extract and Evaluation of Antioxidant and Catalytic Activities

GUAN Huanan, SONG Yan, GONG Dezhuang, LIU Bo, HAN Bolin, YANG Fan, LIU Xiaofei, ZHANG Na   

  1. (College of Food Engineering, Harbin University of Commerce, Harbin 150076, China)
  • Online:2020-04-25 Published:2020-04-20

摘要: 采用废弃黑葵花籽壳提取物作为还原剂和保护剂,低成本快速绿色制备金纳米粒子。利用紫外-可见光谱、透射扫描电镜、X射线衍射光谱和傅里叶红外光谱表征所制备的金纳米粒子。结果表明,采用体积分数80%提取物制备的金纳米粒子在波长526 nm处具有特征吸收峰,平均粒径为(7.25±2.24)nm。傅里叶红外光谱和X射线衍射光谱结果表明,提取物中的成分可以在金纳米粒子表面形成保护层。而这层保护剂不仅使得金纳米粒子在不同贮藏时间、温度、pH值和盐浓度的条件下具有较高的稳定性,而且在其清除1,1-二苯基-2-三硝基苯肼自由基过程中展现出了较强的抗氧化活性。此外,在催化还原4-硝基苯酚转变为4-氨基苯酚的反应中,表现出良好的催化活性。鉴于此,此类型金纳米粒子在食品催化、生物医药和工业生产等领域将具有广泛的应用价值。

关键词: 金纳米粒子, 绿色合成, 催化活性, 抗氧化性, 稳定性

Abstract: Herein, we demonstrated a low-cost and eco-friendly method for the synthesis of gold nanoparticles (AuNPs) using waste black sunflower seed shell extract as both a reducing agent and protectant. The as-prepared sample was characterized by UV-vis spectroscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy. The results showed that the synthesized AuNPs using 80% (V/V) of waste black sunflower seed shell extract had a characteristic absorption peak at 526 nm in the UV-vis spectrum. The mean particle size of the AuNPs was observed to be (7.25 ± 2.24) nm. The FTIR spectrum and the XRD pattern indicated that the extract could form a protective layer on the AuNPs surface, which conferred the AuNPs not only with high stability toward storage, heat, pH and salt, but also with strong antioxidant activity in scavenging 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical. Furthermore, the AuNPs showed good catalytic activity for the reduction of 4-nitrophenol to 4-aminophenol by excess NaBH4. We proposed that the AuNPs could be a potential catalyst for applications in food, biomedical and biopharmaceutical industries.

Key words: gold nanoparticles, green synthesis, catalytic activity, antioxidant activity, stability

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