Composition of fatty acids, triacylglycerols and polar compounds of different walnut varieties (Juglans regia L.) from Tunisia

被引:45
作者
Bouabdallah, I. [1 ]
Bouali, I. [1 ]
Martinez-Force, E. [2 ]
Albouchi, A. [3 ]
Perez Camino, M. C. [2 ]
Boukhchina, S. [1 ]
机构
[1] Univ Tunis El Manar, Fac Sci Tunis, Dept Biol, Unite Biochim Lipides, Tunis 2092, Tunisia
[2] CSIC, Inst Grasa, E-41012 Seville, Spain
[3] Inst Natl Rech Genie Rural Eaux & Forets, Lab Ecol Forestiere, Tunis 2080, Tunisia
关键词
Juglans regia L; fatty acids; triacylglycerols; polar compounds; varietal effect; CHEMICAL-COMPOSITION; VEGETABLE-OILS; OLIVE OILS; AUTHENTICATION; TOCOPHEROL; CULTIVARS;
D O I
10.1080/14786419.2014.950573
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
The chemical composition (total oil content, fatty acids, triacylglycerols (TAGs) and polar compounds) of six walnuts (Juglans regia L.) cultivars (Lauzeronne, Franquette, Hartley, Local pt, Local gd and Parisienne) collected from Mateur (north of Tunisia) was evaluated. The major fatty acids found in the walnut oils are linoleic acid (60.42-65.77%), oleic acid (13.21-19.94%) and linolenic acid (7.61-13%). The TAG species were mainly composed of trilinolein (LLL), dilinoleoyl-linolenoyl-glycerol, dilinoleoyl-oleoyl-glycerol and palmitoyl-dilinoleoyl-glycerol classes. The results revealed that Local pt variety has the highest level of oil (62.56%), linoleic acid (65.77%) and LLL (33.48%). Significant differences among oil samples were observed, therefore showing a great variability in the oil composition among cultivars.
引用
收藏
页码:1826 / 1833
页数:8
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