相关实验视频
Updated: Jun 24, 2025

08:43
Transformation of Organic Household Leftovers into a Peat Substitute
Published on: July 9, 2019
8.3K
从农林废物中组成功能性食品:使用超临界流体提取方法选择性提取生物活性化合物
1School of Biological and Chemical Engineering, NingboTech University, Ningbo 315100, PR China.
Food chemistry
|June 1, 2024
概括
使用二氧化碳的超临界液体提取 (SFE) 有效地将生物活性化合物从农林废物中分离出来. 辅溶剂增强了高极性化合物的提取,这对于功能性食品至关重要.
科学领域:
- 食品科学 食品科学 食品科学
- 绿色化学 绿色化学
- 自然产品化学 自然产品化学
背景情况:
- 农林废物是生物活性化合物的丰富来源.
- 这些化合物对食品营养,安全和健康都有好处.
- 用二氧化碳 (SC-CO2) 进行超临界液体提取 (SFE) 是一种有前途的绿色技术,用于它们的隔离.
研究的目的:
- 审查从农林废物中提取生物活性化合物的SFE的进展.
- 分析影响溶解度和提取产量的参数.
- 为了评估用于功能性食品的提取物的生物活性.
主要方法:
- 使用SC-CO2.2,进行超临界流体提取 (SFE).
- SFE参数的系统变化 (压力,温度,流速,时间,辅溶剂).
- 基于辅溶剂组成的提取产量和化合物概况的分析.
主要成果:
- 没有辅助溶剂的SFE有效提取低极性化合物,如脂肪酸和类.
- 高极性化合物 (酸,黄酸,酸,化物) 需要辅溶剂进行提取.
- 中等极性辅溶剂显著增加了三类,黄类和酸的产量.
结论:
- 使用SC-CO2的SFE是从农林废物中提取生物活性化合物的通用技术.
- 配溶剂的选择对于优化提取特定类型的化合物至关重要.
- 提取的化合物具有显著的发展潜力,可以作为天然的功能性食品成分.
相关概念视频
Supercritical Fluid Chromatography
236
Supercritical fluid chromatography (SFC) provides a beneficial substitute for gas chromatography (GC) and liquid chromatography (LC) for certain samples because it merges the top attributes of both techniques. SFC allows the separation and analysis of compounds that GC or LC does not easily manage. These compounds are traditionally nonvolatile or thermally unstable, making GC unsuitable and lacking functional groups required for HPLC analysis.
SFC utilizes a supercritical fluid mobile phase,...
SFC utilizes a supercritical fluid mobile phase,...
236
Sample Preparation for Analysis: Advanced Techniques
326
Accurate analysis of complex samples often requires advanced preparation techniques to achieve reliable and reproducible results. Samples containing inorganic or organic materials can be challenging to dissolve or decompose effectively. Standard sample preparation methods include acid digestion, fusion, dry ashing, and wet digestion.
Acid digestion with strong acids is commonly used to dissolve inorganic materials that are insoluble (do not dissolve) in water. This method can be useful for...
Acid digestion with strong acids is commonly used to dissolve inorganic materials that are insoluble (do not dissolve) in water. This method can be useful for...
326

