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Pressurized Hot Water Extraction of Bioactives

Plaza, Merichel LU and Turner, Charlotta LU (2017) In Comprehensive Analytical Chemistry 76. p.53-82
Abstract

The purpose of this book chapter 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. The chapter summarizes the field for 2009-2014 and includes fundamentals of water as a solvent; equipment; method optimization; a few selected applications; hyphenations and future aspects. It is highlighted that solvent properties of water are tuneable by changing the temperature, of which the most pronounced are 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,... (More)

The purpose of this book chapter 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. The chapter summarizes the field for 2009-2014 and includes fundamentals of water as a solvent; equipment; method optimization; a few selected applications; hyphenations and future aspects. It is highlighted that solvent properties of water are tuneable by changing the temperature, of which the most pronounced are 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, PHWE methods reported are based on using water at 80-175°C and short extraction times. In conclusion, PHWE provides advantages over conventional extraction methods, such as being 'greener', faster and more efficient.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Anthocyanins, Bioactive compounds, Diterpenes, Extraction, Polyphenols, Pressurized liquid extraction, Solubility, Subcritical, Superheated, Water
in
Comprehensive Analytical Chemistry
volume
76
pages
53 - 82
publisher
Elsevier
external identifiers
  • scopus:85010217257
ISSN
0166-526X
DOI
10.1016/bs.coac.2016.12.005
language
English
LU publication?
yes
id
7965a636-9063-4399-a783-89d691a2fe52
date added to LUP
2017-03-17 09:58:20
date last changed
2018-02-22 12:51:09
@article{7965a636-9063-4399-a783-89d691a2fe52,
  abstract     = {<p>The purpose of this book chapter 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. The chapter summarizes the field for 2009-2014 and includes fundamentals of water as a solvent; equipment; method optimization; a few selected applications; hyphenations and future aspects. It is highlighted that solvent properties of water are tuneable by changing the temperature, of which the most pronounced are 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, PHWE methods reported are based on using water at 80-175°C and short extraction times. In conclusion, PHWE provides advantages over conventional extraction methods, such as being 'greener', faster and more efficient.</p>},
  author       = {Plaza, Merichel and Turner, Charlotta},
  issn         = {0166-526X},
  keyword      = {Anthocyanins,Bioactive compounds,Diterpenes,Extraction,Polyphenols,Pressurized liquid extraction,Solubility,Subcritical,Superheated,Water},
  language     = {eng},
  pages        = {53--82},
  publisher    = {Elsevier},
  series       = {Comprehensive Analytical Chemistry},
  title        = {Pressurized Hot Water Extraction of Bioactives},
  url          = {http://dx.doi.org/10.1016/bs.coac.2016.12.005},
  volume       = {76},
  year         = {2017},
}