In this study, it is aimed to
define the properties which determine their effects on the quality and health
of five different kinds of seed oils produced by the cold pressed extraction
method. The cold pressed seed oils known as coffee bean, pomegranate, cherry,
apricot, and fig kernels which are produced in the domestic market of Turkey
were bought to determine the quality characteristics such as peroxide values,
free fatty acidity, and UV-specific absorption values, total phenolic compounds
and antioxidant activity of these seed oils. When the peroxide values were
examined, the highest peroxide value was found in coffee bean oil and the
lowest peroxide value was found in pomegranate seed oil. When the free fatty
acidity is considered, the number of free fatty acids is ranked from the
highest to the lowest as coffee bean oil, fig kernel oil, sour cherry seed oil,
pomegranate seed oil, and apricot kernel oil. The K232 value was
found to be the highest in coffee bean oil while it was the lowest in apricot
kernel oil. K270 values were the highest in pomegranate seed and the
lowest in the apricot kernel. As seen in the results of the total phenolic
compound analysis performed to recognize the effects on health, this value was
highest in coffee bean oil, followed by apricot kernel oil, fig kernel oil,
pomegranate seed oil, and sour cherry seed oil. When the results antioxidant
activity analysis were examined, the antioxidant activity of apricot kernel oil
was found to be the lowest, while this value of fig kernel oil was found to be
the highest. According to the analysis of variance, these differences were
statistically found to be significant. In addition, these values were compared
with the studies in the literature and evaluated according to the legal limits.
These products sold on the grounds that they have beneficial effects on health
in the market should be implemented with more stringent procedures to be
audited by public institutions and legal regulations should be supported by
further scientific studies.
Primary Language | English |
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Subjects | Chemical Engineering |
Journal Section | Articles |
Authors | |
Publication Date | June 15, 2019 |
Submission Date | December 13, 2018 |
Acceptance Date | March 25, 2019 |
Published in Issue | Year 2019 |