Measuring the peroxide (This factor represents the
entire content of hydro peroxides and fats oxygen
peroxide or fat-containing substances) according
to the National Standard No. 4179 was conducted.
Test the level of malondialdehyde (Thiobarbituric
TBA) to measure lipid peroxidation, which is
carried out in accordance with the National
Standard No.10494.
Colorimetric test: the chlorophyll and pigments in
the oil typically by spectrophotometer at 360, 670
and 710nm is measured. Virgin olive oil is
different from yellowish green to golden. The
main pigments found in olive oil are: 1.
chlorophyll a, b and pheophytina, b 2- carotenoids,
in this study, used to measure chlorophyll content
of the AOCS standard in Cc13i-96number [10].
The time resistance to oxidation: using rancimat
(at a temperature of 110°C with air flow of 20
liters per hour) was measured [10].
Data analysis: an experiment in a completely
randomized block design and test mean Duncan test was
conducted using SPSS software.