超临界流体萃取
生化工程
重新使用
萃取(化学)
食品工业
环境友好型
多酚
化学
原材料
农业
食品加工
工艺工程
生物技术
废物管理
色谱法
食品科学
抗氧化剂
有机化学
工程类
生物
生态学
作者
Imma Pagano,Luca Campone,Rita Celano,Anna Lisa Piccinelli,Luca Rastrelli
标识
DOI:10.1016/j.chroma.2021.462295
摘要
Food processing industry is accompanied with the generation of a great production of wastes and by-products exceptionally rich in bioactive compounds (especially phenolics), with antioxidant activity. The recovery of these health molecules constitutes a key point for the valorization of by-products, with the possibility of creating new ingredients to be used for the formulation of food and cosmetic products. One of the main limitations to reuse by-products is linked to the high cost to obtain bioactive compounds, consequently in order to exploit these resources commercially valuable it is necessary to develop innovative, economic and environmentally friendly extraction strategies. These extraction methods should be able to reduce petroleum solvents, energy consumption and chemical wastes, protecting both environment and consumers and ensuring safe and high-quality final products. The purpose of this review is to summarize current knowledge and applications of the new extraction techniques such as supercritical fluid extraction, pressurized liquid extraction, ultrasound assisted extraction applied to polyphenols extraction from agricultural food by-products. Particular attention has been paid to theoretical background, highlighting mechanisms and safety precautions. Authors concluded that relevant results of these techniques represent an opportunity to industrial scale-up, improving the extraction yields, minimizing time, costs and environmental impact.
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