期刊
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY
卷 85, 期 10, 页码 921-924出版社
WILEY
DOI: 10.1007/s11746-008-1283-1
关键词
oil; chemical characteristics; fatty acid composition; Pistacia lentiscus; Quercus
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%).
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