Pressurized hot water extraction of bioactives
Författare
Summary, in English
The purpose of this review is to give the reader a thorough background to the fundamentals and applications of pressurized hot water extraction (PHWE) for the analysis of bioactive compounds. We summarize the field in the period 2009-14, and include fundamentals of water as a solvent: equipment; method optimization; applications; coupling; and, future prospects. We highlight that solvent properties of water are tunable by changing the temperature, particularly self-ionization, dielectric constant, viscosity, diffusivity, density and surface tension. Furthermore, important aspects to consider are the risk of degradation of the analytes and other potential reactions, such as hydrolysis, caramelization and Maillard reactions that may lead to erroneous results. For the extraction of bioactive compounds, we report PHWE methods based on using water of 80-175 degrees C and short extraction times. In conclusion, PHWE provides advantages over conventional extraction methods, such as being "greener", faster and more efficient. (C) 2015 The Authors. Published by Elsevier B.V.
Avdelning/ar
Publiceringsår
2015
Språk
Engelska
Sidor
39-54
Publikation/Tidskrift/Serie
Trac. Trends in Analytical Chemistry
Volym
71
Dokumenttyp
Artikel i tidskrift
Förlag
Elsevier
Ämne
- Analytical Chemistry
Nyckelord
- Anthocyanin
- Bioactive compound
- Diterpene
- Extraction
- Polyphenol
- Pressurized hot water extraction
- Pressurized liquid extraction
- Solubility
- Subcritical water
- Superheated water
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0165-9936