Subscribe to the gold package and get unlimited access to Shamra Academy
Register a new userStudy of the content of some varieties of safflower seed oil sterols
دراسة محتوى بعض أصناف زيت بذر العصفر من الستيرولات
1305
0 44
0
(
0
)
Added by
Damascus University ورقة بحثية
Publication date
2012
fields
Chemistry
and research's language is
العربية
Created by
Shamra Editor
Ask ChatGPT about the research
هدف هذا البحث إلى دراسة الستيرولات التي تعد من أهم المركبات الصغرى المميزة للزيوت النباتية. اختيرت عشرة أصناف من بذور العصفر المزروعة في سورية في ربيع عام 2010 فصل الزيت منها بالاستخلاص بالإيتر البترولي، ثم عين محتوى و تركيب الستيرولات فيها باستخدام جهاز الاستشراب الغازي وفق الطريقة المعتمدة لتعيين الستيرولات في زيت الزيتون .
This research aims to study the sterols which is considered, one of the most important minor compounds, and characterizes vegetable oils.Ten items were selected from the planted seeds of safflower in Syria in the spring of 2010. Oil was separated from seed oil extraction with petroleum ether, then the content and content of the sterols were specified by using gas chromatography according to the standard method in the appointment of sterols in olive oil. The study concluded characterize safflower seed oil sterols from their content,
References used
C.S.I.R. (Council of Scientific and Industrial Research). 1948-1976. The wealth of India. 11 vols. New Delhi
Erkki, M. Peeter, L. Juhan, J., and Uno, M. 2007. Some important aspects of sterol analysis of vegetable oils, Proc. Estonian Acad. Sci. Chem., 56, 2, 59–66
Fernández- Martínez JM. 2002. Sesame and Safflower Newsletter 17 - 2002. www.fao.org, IAS
rate research
Read More
Four varieties of Safflower seeds grown in Syria in the spring and winter of
2011 were selected.
The Safflower oil was separated from those seeds by extraction using
petroleum ether, and determined the percentage of oil in all studied samples,
th
e proportion of oil ranged from 23.5 to 28.2 % in the winter planting period
and 28.5 to 30.3 % in the spring planting period.
The extracted oils were esterficated for the Gas chromatographic analysis
in order to show the effect of planting period change in the content of fatty
acids. It turns out that the most abundant fatty acid is an Linoleic acid (C18:2)
followed by oleic acid in all items except item N7 grown in the spring which
have convergent rate.
It also shows an increase in the content of (C16:0 and C18:0 and C18:1) and a
decrease in (C18:2) with a change in the period of planting from spring to winter,
except item N7, which showed a decrease in content of (C18:1) and increase in its
content of (C16:0 and C18:0 and C18:2), which led to a change in the iodine value
and all the wintry categories have become half dry oils.
The results indicate that planting period can be an effective major factor in
the quality of oil and fatty acids within its composition, so the ideal period of
planting is very important.
The transesterification reactions of Cotton seed oil with Methanol using
potassium hydroxide as catalyst by Reactive Distillation column, were studied.
The ester preparation involved a transesterification reaction, followed by
purification.
نفذت هذه الرسالة خلال موسم قطاف الزيتون 2009/2010 على صنف الزيتون الصوراني المزروع في ادلب وتم اختيار موقع واحد يصم 120 شجرة متجانسة لعمر حوالي 35 سنة .
The samples of various food products have been collected at several times per season
over two years, in order to determine the content of phytic acid to investigate the influence
of the adopted treatment methods on phytic acid degradation and to mi
nimize their
unhealthy effects.
It's been shown that PA is found at high levels in the mentioned products especially,
in unripe fruits where its levels ranged between (0.15-3.57%g.s.d) while PA levels were
less in the process products and ranged between (0-1.95 %g.s.d).
Technological processes were applied to biodegrade phytic acid of some foods and
the reduction ratio ranged between 20-60% of the whole content of PA.
This study was conducted to study the effect of including
different levels of Grape seed oil as a natural antioxidant on
layer hen egg production, egg quality,.
Log in to be able to interact and post comments
comments
Fetching comments
Sign in to be able to follow your search criteria
