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 Lipophilic Extracts from Banana Fruit Residues: A Source of Valuable Phytosterols
Please use this identifier to cite or link to this item http://hdl.handle.net/10773/5237

title: Lipophilic Extracts from Banana Fruit Residues: A Source of Valuable Phytosterols
authors: Oliveira, Lúcia
Freire, Carmen S. R.
Silvestre, Armando J. D.
Cordeiro, Nereida
keywords: Musa acuminata Colla
Dwarf Cavendish
Banana pulp
Banana peel
Fatty acids
Sterols
Diacylglycerols
Steryl glucosides
Steryl esters
issue date: 2008
publisher: American Chemical Society
abstract: The chemical composition of the lipophilic extracts of unripe pulp and peel of banana fruit 'Dwarf Cavenclish' was studied by gas chromatography-mass spectrometry. Fatty acids, sterols, and steryl esters are the major families of lipophilic components present in banana tissues, followed by diacylglycerols, steryl glucosides, long chain fatty alcohols, and aromatic compounds. Fatty acids are more abundant in the banana pulp (29-90% of the total amount of lipophilic extract), with linoleic, linolenic, and oleic acids as the major compounds of this family. In banana peel, sterols represent about 49-71% of the lipophilic extract with two triterpenic ketones (31-norcyclolaudenone and cycloeucalenone) as the major components. The detection of high amounts of steryl esters (469-24405 mg/kg) and diacylglycerols (119-878 mg/kg), mainly present in the banana peel extract, explains the increase in the abundance of fatty acids and sterols after alkaline hydrolysis. Several steryl glucosides were also found in significative amounts (273-888 mg/kg), particularly in banana pulp (888 mg/kg). The high content of sterols (and their derivatives) in the 'Dwarf Cavendish' fruit can open new strategies for the valorization of the banana residues as a potential source of high-value phytochemicals with nutraceutical and functional food additive applications.
URI: http://hdl.handle.net/10773/5237
ISSN: 0021-8561
publisher version/DOI: http://dx.doi.org/10.1021/jf801709t
source: Journal of Agricultural and Food Chemistry
appears in collectionsDQ - Artigos

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