Synthesis, characterisation and antioxidant features of procyanidin B4 and malvidin-3-glucoside stearic acid derivatives.
Food Chem
; 174: 480-6, 2015 May 01.
Article
in En
| MEDLINE
| ID: mdl-25529709
ABSTRACT
The acylation of procyanidin B4 with a saturated fatty acid chloride containing 18 carbon atoms was studied in order to obtain procyanidin B4 3-O-di-stearic acid conjugate. This compound was structurally characterised by mass spectrometry and 1D and 2D NMR techniques. Derivatization of malvidin-3-glucoside using stearoyl chloride in acetonitrile was also performed yielding mono-, di- and tri-stearic ester derivatives. The novel derivatives obtained revealed significant antioxidant activity, although lower than the respective precursors. However, the chemical modification of anthocyanins and procyanidins (water soluble pigments) to more lipophilic compounds has the advantage of increased bioavailability in biological matrices, and to potentiate their application in food matrices and cosmetic products.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Stearic Acids
/
Catechin
/
Biflavonoids
/
Proanthocyanidins
/
Glucosides
/
Anthocyanins
/
Antioxidants
Language:
En
Journal:
Food Chem
Year:
2015
Document type:
Article