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Extraction of phenolics from broom branches using green technologies
Author(s) -
González Noelia,
Otero Andrea,
Conde Enma,
Falqué Elena,
Moure Andrés,
Domínguez Herminia
Publication year - 2017
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.5129
Subject(s) - broom , raffinate , extraction (chemistry) , chemistry , solvent extraction , supercritical fluid , solvent , chromatography , organic chemistry , biology , ecology
BACKGROUND The effective exploitation of plants as a biorenewable resource has very important significance for sustainable development. Broom ( Cytisus scoparius) has been used and associated with healthy benefits in the Iberian Peninsula for a long time. With this in mind, different technologies, alone or in combination, have been proposed to obtain valuable compounds from broom branches. RESULTS Composition showed a seasonal variation. Periods that lead to higher content of extractives were selected to design a combined autohydrolysis and supercritical CO 2 extraction process for the production of antioxidants. The autohydrolysis process leads to higher yields than conventional solvent extraction and SC–CO 2 extraction produced a raffinate with radical scavenging capacity comparable with ethanolic extracts. The major bioactive compounds identified in extracts were flavonoids, phenolic acids and phenolic aldehydes. CONCLUSIONS An extraction process resulting from a combination of solvent extraction and autohydrolysis increased the extraction yields and the recovery of extracts containing bioactive compounds suitable for use in food, cosmetic and pharmaceutical applications. The knowledge gained from this study should be helpful to further exploit and apply this resource. © 2016 Society of Chemical Industry