Background

Because of the important role of bioactive compounds in functional foods and health care, more and more attention has been paid to the active components extracted by green extraction methods. However, how to ensure the extraction yield and biological activity during the extraction process is an urgent problem to be solved. Subcritical water extraction (SWE) is a promising engineering method, which provides an environmentally friendly technology for extracting various bioactive compounds from natural products. Especially, under high temperature and high pressure, subcritical water can change the polarity and dielectric constant of solvents, thus contributing to a better extraction process, improving the mass transfer efficiency of the extracts and maintaining its biological activities, which has a high application prospect.

Scope and approach

This review provided an update overview on the fundamental principles and bioactive compounds extraction with subcritical water. This will contribute to deepen the understanding of SWE and provide theoretical basis and reference value for further improving the application of subcritical water.

Key founds and conclusions

It is expected that this green and efficient extraction technology will be increasingly applied in the extraction of more bioactive ingredients in the near future. In addition, future research should consider combining SWE with other physical extraction techniques to ensure the retention of the biological ingredients better. These active compounds with SWE have great potential in health care medicine and functional foods. Meanwhile, future researches should focus on consumer acceptability, safety, legal aspects, and commercial availability of health products.

中文翻译：

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亚临界水萃取生物活性化合物的最新研究进展

背景

由于生物活性化合物在功能食品和保健中的重要作用，因此越来越多地关注通过绿色提取方法提取的活性成分。然而，如何确保提取过程中的提取得率和生物活性是亟待解决的问题。亚临界水提取（SWE）是一种很有前途的工程方法，它提供了一种从天然产物中提取各种生物活性化合物的环保技术。特别是在高温高压下，亚临界水可以改变溶剂的极性和介电常数，从而有助于更好的提取工艺，提高提取物的传质效率，保持其生物活性，具有较高的应用前景。

范围和方法

这篇综述提供了有关基本原理和亚临界水萃取生物活性化合物的最新概述。这将有助于加深对SWE的理解，为进一步改善亚临界水的应用提供理论依据和参考价值。

主要发现和结论

预计在不久的将来，这种绿色高效的提取技术将越来越多地用于提取更多具有生物活性的成分。此外，未来的研究应考虑将SWE与其他物理提取技术结合使用，以确保更好地保留生物成分。这些具有SWE的活性化合物在保健医学和功能食品中具有巨大潜力。同时，未来的研究应侧重于消费者可接受性，安全性，法律方面以及保健产品的商业可用性。