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Determination of the Fatty Acid Composition of Acorn ( Quercus ), Pistacia lentiscus Seeds Growing in Algeria
Author(s) -
Charef M.,
Yousfi Mohamed,
Saidi M.,
Stocker P.
Publication year - 2008
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/s11746-008-1283-1
Subject(s) - pistacia lentiscus , acorn , saponification value , pistacia , chemistry , oleic acid , linoleic acid , food science , acid value , botany , anacardiaceae , fatty acid , palmitic acid , iodine value , biology , biochemistry , ecology , mediterranean climate
The fruits of two plants from Algeria ( Quercus and Pistacia lentiscus ) were investigated. The paper reports the chemical characteristics and the fatty acid composition of the oil extracts from the fruits. The black fruits of P. lentiscus has the highest crude fat of 32.8%, followed by the red fruits with 11.7%, and the lowest value of 9% in Quercus (acorn). The acid value was highest in red fruits of P. lentiscus oil (24.0 mg KOH/g), followed by the black fruits oil and lowest in acorn oil. The relatively high iodine value in the oils indicates the presence of many unsaturated bonds. Saponification value was highest in the Quercus ilex oil (166.7 mg KOH/g), while the lowest value was in the black fruits of P. lentiscus oil. Gas‐liquid chromatography revealed that the three dominant fatty acids found are: palmitic C16:0 (16.3–19.5%), oleic C18:1 (55.3–64.9%), linoleic C18:2 (17.6–28.4%). The oils contain an appreciable amount of unsaturated fatty acids (78.8–83.5%).