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Separation Science and Technology Volume 51, 2016 - Issue 7
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Extraction

Extraction of phytochemicals using hydrotropic solvents

Jayesree NagarajanChemical Engineering Discipline, School of Engineering, Monash University Malaysia, Selangor, MalaysiaCorrespondence[email protected] [email protected]
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,
Wong Wah HengChemical Engineering Discipline, School of Engineering, Monash University Malaysia, Selangor, MalaysiaView further author information
,
Charis M GalanakisDepartment of Research and Innovation, Galanakis Laboratories, Chania, GreeceView further author information
,
Ramakrishnan Nagasundara RamananChemical Engineering Discipline, School of Engineering, Monash University Malaysia, Selangor, MalaysiaView further author information
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Mavinakere Eshwaraiah RaghunandanCivil Engineering Discipline, School of Engineering, Monash University Malaysia, Selangor, MalaysiaView further author information
,
Jian SunInstitute of Agro-food Science and Technology, Guangxi Academy of Agricultural Sciences, ChinaView further author information
,
Amin IsmailDepartment of Nutrition and Dietetics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor, MalaysiaView further author information
,
Tey Beng-TiChemical Engineering Discipline, School of Engineering, Monash University Malaysia, Selangor, MalaysiaView further author information
&
Krishnamurthy Nagendra PrasadChemical Engineering Discipline, School of Engineering, Monash University Malaysia, Selangor, MalaysiaView further author information
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Pages 1151-1165 | Received 24 May 2015, Accepted 15 Jan 2016, Published online: 29 Apr 2016
 
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ABSTRACT

Every plant synthesizes phytochemicals with different properties to supply a pool of molecules for food, chemical and pharmaceutical applications. Concurrent with “green technology” development, use of green solvents to extract phytochemicals instead of conventional non-eco-friendly solvents is crucial. Hydrotrope is a one of the green solvents that enhances solubility of poorly water-soluble or hydrophobic compounds in aqueous solutions. This article critically reviews the extraction of phytochemicals using various hydrotropic solvents. Hydrotropy mechanisms, factors influencing extraction and recovery methods of phytochemicals were also evaluated in this review.

Additional information

Funding

We thank the Fundamental Research Grants Scheme (FRGS) (project number FRGS/2/2013/TK05/MUSM/03/2) from the Ministry of Higher Education (MOHE), Malaysia, for financial support.

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