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Supercritical fluid extraction in sunflower seed technology
Author(s) -
Andrich Gianpaolo,
Balzini Sabrina,
Zinnai Angela,
De Vitis Valerio,
Silvestri Sandro,
Venturi Francesca,
Fiorentini Roberto
Publication year - 2001
Publication title -
european journal of lipid science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.614
H-Index - 94
eISSN - 1438-9312
pISSN - 1438-7697
DOI - 10.1002/1438-9312(200103)103:3<151::aid-ejlt151>3.0.co;2-t
Subject(s) - sunflower , helianthus annuus , extraction (chemistry) , supercritical fluid extraction , supercritical fluid , polyphenol , sunflower oil , sunflower seed , chromatography , chemistry , food science , vegetable oil , fraction (chemistry) , pulp and paper industry , horticulture , biology , biochemistry , organic chemistry , antioxidant , engineering
Abstract Sunflower ( Helianthus annuus L. ) seed represents an important source for edible oil and its protein fraction is also recognised as valuable for human consumption when suitably purified from polyphenols, which negatively affect colour and nutritional value. On this basis, a main research has been developed, with the aim of testing the technical feasibility of a supercritical fluid extraction (SFE) process involving a preliminary supercritical CO 2 (SC‐CO 2 ) extraction of oil from sunflower de‐hulled seeds, followed by the removal of polyphenols from de‐fatted meal by means of ethanol coupled with SC‐CO 2 . The paper reports the experimental protocol followed, together with the kinetics of the extractions, knowledge of which allows the optimisation of working parameters and the determination of process yields.