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Triacylglycerols and Phospholipids Composition of Caper Seeds ( Capparis spinosa )
Author(s) -
Tlili Nizar,
Trabelsi Hajer,
Renaud Justin,
Khaldi Abdelhamid,
Mayer Paul M.,
Triki Saîda
Publication year - 2011
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/s11746-011-1855-3
Subject(s) - capparis spinosa , phosphatidic acid , palmitic acid , composition (language) , population , botany , biology , linoleic acid , oleic acid , phospholipid , phosphatidylethanolamine , phosphatidylinositol , phosphatidylglycerol , chromatography , chemistry , biochemistry , fatty acid , phosphatidylcholine , linguistics , philosophy , demography , kinase , membrane , sociology
The goal of this study is to evaluate for the first time the composition of triacylglycerols (TAG) using ESI‐TOF‐MS and phospholipids species using HPLC–ESI‐TOF‐MS of two Capparis spinosa seed oil populations. Results show that LOO, LOP, LLO, OOO, PLL and POO were the major molecular species of triacylglycerol detected in caper seeds; where L represents linoleic acid; O, oleic acid; and P, palmitic acid. The TAG composition was significantly different among the two C. spinosa populations. In Ghar el Melh population, LOO (15.7%) was detected as the dominant TAG molecular species, followed by LOP (13.2%), LLO (12.0%) and OOO (11.4%); while, the dominant fraction was LLO (14.2%) followed by LOO (14.1%), LOP (11.5%) and PLL (10.5%) in Chouigui samples. The major component in the phospholipids fraction was phosphatidylinositol (ca. 54–91%), followed by phosphatidylglycerol, phosphatidylethanolamine and phosphatidic acid. A variety of molecular species within each class were identified. The major component in all phospholipids species contains a C‐18:1 lipid chain. C16:0/C18:2‐PI (ca. 28–31%) was the most abundant PI. PG species were mainly C18:2/C18:1‐PG (25–32%). The major PE was C18:1/C18:1‐PE (44–75%). The major PA species was C18:1/C18:1‐PA (22–24%).