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通过结合创新的干燥和提取技术来改善生的生物活性成分.

Raul Remor Dalsasso1, Germán Ayala Valencia1, Alcilene Rodrigues Monteiro2

  • 1Department of Chemical and Food Engineering, Federal University of Santa Catarina, Trindade, Florianópolis, SC, CEP 88040-900, Brazil.

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概括

研究了生提取物 (GE) 的创新干燥和提取方法. 真空微波干燥与20°C的超声波提取相结合,产生了富含和抗氧化活性的GE,非常适合食品和制药应用.

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科学领域:

  • 食品科学与技术 食品科学与技术
  • 自然产品化学 自然产品化学
  • 工艺工程是过程工程.

背景情况:

  • 生提取物 (GE) 具有对食物,活性包装和健康有益的抗氧化,抗微生物和抗炎性质.
  • 温室气体的生物活性与和有关,但它们的组成受干燥和提取过程的影响.
  • 干燥和提取的独立研究限制了对优化GE生物活性的理解.

研究的目的:

  • 研究创新的干燥 (真空微波,VMD) 和提取 (超声波,阿联) 技术对生提取物成分和生物活性的联合影响.
  • 将这些新兴方法与传统技术比较,例如对流式烤箱干燥和索克斯莱特提取.
  • 确定最佳的加工条件,以最大限度地提高GE的和抗氧化剂含量.

主要方法:

  • 使用了真空微波干燥 (VMD) 和对流式干燥.
  • 在20°C和80°C进行了超声辅助提取 (UAE),微波辅助提取 (MAE) 和索克斯莱特提取.
  • 分析了干燥动力学,粉末颜色,提取物成分 (基,基) 和抗氧化活性.

主要成果:

  • 在20°C时与阿联结合的VMD产生了具有显著更高含量 (387.6 mg GAE/g) 和抗氧化活性 (2100.7 mmol Trolox/mL) 的生提取物.
  • 这种组合对酸含量的影响最小.
  • MAE保留了原来的生成分,而VMD则通过改变细胞结构来促进生物活性化合物的提取.

结论:

  • 真空微波干燥,随后低温超声波提取是一种高效的方法,用于生产富含和抗氧化剂的强效生提取物.
  • 这种方法为量身定制GE成分提供了一条途径,以提高食品,活性包装和制药应用中的有效性.
  • 这些发现为优化生加工提供了宝贵的见解,以最大限度地提高生物活性化合物产量和生物活性.