In this research, the quantity of vitamin C which extracted from fresh fruits and
vegetables was evaluate by using titration method with 6-2 Dichloro phenol andovinol, and
studying the effect of conservation and different temperatures (30, 60, 90)
°C which used
in cooking on content of vitamin C for some samples. Also this search included studying of
the effect of iron ions on content tomato, orange and lemon of vitamin C.
The results showed that the concentration of vitamin c in studied samples: parsley,
red pepper, green pepper, lemon, orange and tomato was (8, 22, 36, 144, 175, 133)
mg/100g respectively. Losing of the vitamin was (66%, 65%) when we save the leaves and
stalk of parsley for 24 hours respectively, when exposure the parsley leaves to the
temperatures (30, 60, 90) c° the losing percentage was (24 %, 41%, 62 %), While the
losing was (79%, 65%, 39%) when injected each of tomatoes, oranges, lemons with
dissoluble of iron.
This investigation was carried out during 2011–2012 season at the
biotechnology department\General Commission for Scientific Agricultural
Researches in order to detect the presence of Giardia Cysts on fresh vegetables
and irrigation water using PC
R technique to detect the status of Giardia cysts
in ten different agricultural areas of Damascus Countryside. 120 samples
including, 40 irrigation water and 80 vegetables samples were randomly
collected and tested. Out of 120 samples examined, only 25.8 % were
contaminated with Giardia cysts and these included 37.5% of irrigation water
samples and 20% of fresh vegetables samples. G. lamblia cysts were detected in
12.5% of examined samples, 17.5% of irrigation water samples and 10% of
fresh vegetables samples. The majority of contaminated samples (41.6%),
(25%) for Giardia and G. lamblia, respectively were from Misraba area without
statistically significant with Kafrein area, which showed the lowest
contamination with Giardia cysts (8.33%) and was free of G. lamblia cysts. This
study confirmed the importance of application of molecular biology methods in
the detection of Giardia on vegetables and their Irrigation water, since used
primers showed high specificity and sensitivity in the detection of the Giardia
genus and discriminate the Human pathogenic type, G. lamblia.
The study was conducted in Damascus district, due to the importance of
vegetable cultivation in this area. Two towns were selected randomly and four
villages from each selected town with ten vegetable farmers from each selected
village were random
ly selected for the study. Thus, the total size of the sample
was 80 farmers. The data was collected with the help of specially designed and
pre-tested interview schedule. The objectives of the study were; to study some
socio - economic variables of vegetable growers, and to know their sources of
agricultural information, marketing channels, training needs and the main
constraints faced them in producing and marketing of vegetables.
The research aimed to recognize the optimal level of Inputs used for
vegetables grown under plastic houses in highlands. These vegetables included
cucumber in first and second sowing, green beans, and sweet pepper. To realize
this objective, produ
ction function analysis was used for representative sample
of farmers in the area.
The Russian and German journeys are considered one of the most
important European journeys which described some of the Holy Places
(Palestine) and its economy, especially agriculture during the Crusades. This
research will talk about models of Russian and German flights, and the
definition of their owners.
