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Pressurized hot water extraction of bioactives

Plaza, Merichel LU and Turner, Charlotta LU (2015) In Trac. Trends in Analytical Chemistry 71. p.39-54
Abstract
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... (More)
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. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Anthocyanin, Bioactive compound, Diterpene, Extraction, Polyphenol, Pressurized hot water extraction, Pressurized liquid extraction, Solubility, Subcritical water, Superheated water
in
Trac. Trends in Analytical Chemistry
volume
71
pages
39 - 54
publisher
Elsevier
external identifiers
  • wos:000361777300017
  • scopus:84941259241
ISSN
0165-9936
DOI
10.1016/j.trac.2015.02.022
language
English
LU publication?
yes
id
e1b9e3d5-a37d-48df-a7c6-0ff273d7e96f (old id 8071006)
date added to LUP
2015-10-22 08:08:42
date last changed
2017-11-05 03:53:43
@article{e1b9e3d5-a37d-48df-a7c6-0ff273d7e96f,
  abstract     = {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.},
  author       = {Plaza, Merichel and Turner, Charlotta},
  issn         = {0165-9936},
  keyword      = {Anthocyanin,Bioactive compound,Diterpene,Extraction,Polyphenol,Pressurized hot water extraction,Pressurized liquid extraction,Solubility,Subcritical water,Superheated water},
  language     = {eng},
  pages        = {39--54},
  publisher    = {Elsevier},
  series       = {Trac. Trends in Analytical Chemistry},
  title        = {Pressurized hot water extraction of bioactives},
  url          = {http://dx.doi.org/10.1016/j.trac.2015.02.022},
  volume       = {71},
  year         = {2015},
}