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The anthocyanins of sunflower
Author(s) -
PIFFERI PIER GIORGIO,
VACCARI ANGELO
Publication year - 1983
Publication title -
international journal of food science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.831
H-Index - 96
eISSN - 1365-2621
pISSN - 0950-5423
DOI - 10.1111/j.1365-2621.1983.tb00302.x
Subject(s) - sunflower , pigment , distilled water , extraction (chemistry) , chemistry , fraction (chemistry) , solvent , chromatography , grinding , polarity (international relations) , cultivar , husk , botany , organic chemistry , materials science , agronomy , biochemistry , biology , metallurgy , cell
Summary The extraction process of red pigments from the husks of a cultivar of sunflower has been studied. It has been shown that a fraction containing circa 80% of the starting pigments could be obtained by grinding. Best extractions were obtained with distilled water‐organic solvent mixtures of intermediate polarity values. The extraction yields are strongly influenced by the pH and the solvent/powder ratio and reach the maximum after about 2 hr. The experimental data showed that the greater part of the pigments, readily precipitable by acidification to pH 2.0, are bonded to a macromolecule, probably of protein nature, as confirmed by electrophoresis.