文章摘要
张晓南;普楠;张潇元;吴长玲;施珩;王中江;江连洲;杨秋萍.大豆异黄酮纳米粉体的反溶剂法制备及表征[J].中国食品学报,2019,19(9):103-108
大豆异黄酮纳米粉体的反溶剂法制备及表征
Preparation and Characterization of Soy Isoflavone Nanoparticles by Antisolvent Precipitation Method
  
DOI:
中文关键词: 大豆异黄酮  微细粉体  反溶剂  表征  粒径
英文关键词: soy isoflavone  powder  anti-solvent  characterization  particle size
基金项目:国家自然科学基金青年项目(31701568);“十三五”重点研发项目 (2016YFD0400402-02);黑龙江省自然科学基金面上项目(C2018025);黑龙江省教育厅创新人才项目(UNPYSCT-2016143)
作者单位
张晓南;普楠;张潇元;吴长玲;施珩;王中江;江连洲;杨秋萍 东北农业大学哈尔滨150030黑龙江省学勤科技有限公司哈尔滨150030黑龙江省绿色食品科学研究院哈尔滨150028 
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中文摘要:
      以二甲基亚砜作为溶剂,丙酮为反溶剂制备大豆异黄酮纳米粉体。通过正交试验设计法,以大豆异黄酮粒径为指标,对各个影响因素和水平进行研究,得到最佳的试验条件。结果:大豆异黄酮的纳米粒径与溶液体积比、匀浆器转速、溶液浓度呈反比,与反应时间呈正比。大豆异黄酮的最佳试验条件为:溶液质量浓度300 mg/mL,转速1 200 r/min,溶剂与反溶剂的体积比1∶6,反应时间3 min。在该条件下得到的纳米大豆异黄酮粒径为98 nm。通过扫描电镜(SEM)观测粒子外观,并用粉体堆密度方法统计。通过红外光谱(FT-IR)、差热扫描(DSC)等方法对制备的粉体进行物理化学性质表征。结果表明:制备前、后大豆异黄酮的粉体化学性质没有发生改变,纳米大豆异黄酮颗粒分布均匀,粒径显著减小。
英文摘要:
      Taking dimethyl sulfoxide as solvent, soy isoflavone powder was prepared by acetone as the anti-solvent. Orthogonal experimental design method was used to in spect the major factors affecting the size and morphology of soy isoflavone powder. Results show that the particle size has a negative relationship with volume ratio, rotor speed and concentration, and has a positive relationship with reaction time. Experiment indicates that the measured powder particle size reaches 98 nm when the concentration is 300 mg/mL; rotor speed is 1 200 r/min; volume ratio is 1 ∶ 6 and reaction time is 3 min. Isoflavone and nano-isoflavone power were evaluated by using scanning electron microscope (SEM), infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC) and statistics of powder heap density. Results showed that the chemical properties of isoflavones did not change after preparation. Nano-isoflavone particles were distributed evenly and the particle size decreased significantly.
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