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Neutral Lipid Characterization of Non‐Water‐Soluble Fractions of Carica Papaya Latex
Author(s) -
Barouh Nathalie,
Abdelkafi Slim,
Fouquet Benjamin,
Pina Michel,
Scheirlinckx Frantz,
Carrière Frédéric,
Villeneuve Pierre
Publication year - 2010
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/s11746-010-1582-1
Subject(s) - carica , chemistry , fraction (chemistry) , chromatography , glyceride , fatty acid , composition (language) , polyunsaturated fatty acid , linoleic acid , oleic acid , food science , organic chemistry , biochemistry , botany , biology , linguistics , philosophy
The non‐water‐soluble fraction of Carica papaya latex (CPL) constitutes a waste material from papain production; very little information exists regarding its chemical composition. The non‐water‐soluble fraction of CPL was fractionated by liquid chromatography into neutral lipids, glycolipids and phospholipids. The most abundant compounds were found to be the polar lipids, accounting for 79.2% (w/w) of the total extractible matter, while the total amount of neutral lipids was only around 20%. It was composed of free fatty acids, sterols and triterpenic alcohols, but no glycerides were detected. A high content of saturated fatty acids was measured; these saturated fatty acids were represented by very long chains with C24:0, C26:0 and C28:0 accounting for 6.3, 11.0 and 6.3%, respectively, in the total extractible matter and 7.3, 9.0 and 3.9% in the FFA fraction. The monounsaturated fatty acids were about 23–25% in both samples, with oleic acid (C18:1) being the most abundant. The polyunsaturated fatty acids that were 25.1% in the total matter and 21.6% in the FFA fraction were mainly represented by linoleic acid (C18:2n‐6). Finally, a very interesting characteristic of the FA composition of this latex concerns the presence of odd‐numbered fatty acids in significant amounts (around 22% in the total extract and 24.3% in the FFA fraction).