Browsing by Author "Ünal K."

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    Effects of dietary fish oil and flax seed on cholesterol and fatty acid composition of egg yolk and blood parameters of laying hens
    (South African Bureau for Scientific Publications, 2003) Basmacioǧlu H.; Çabuk M.; Ünal K.; Özkan K.; Akkan S.; Yalçin H.
    This study was conducted to determine the effects of the supplementation of different levels of fish oil (FO) and flax seed (FS) in the diets of layers on the content of egg yolk fatty acid, cholesterol, blood parameters, egg production and egg quality criteria. In the experiment, a total of 120 Isa-White laying hens of 34 weeks of age were used. Hens were divided randomly into five groups and fed different diets containing no FO and FS; 1.5% FO; 4. 32% FS; 1.5% FO+4.32% FS and 8.64% FS for eight weeks. A significant decrease in yolk cholesterol content (mg/g yolk) was found in the eggs from hens fed the diets containing 1.5 % FO and 8.64% FS as compared with the control. Adding FO and FS to diets significantly increased the total omega-3 fatty acids in eggs at 28 (phase 1) and 56 (phase 2) days of the trial. By contrast, the addition of both FO and FS to diets had no effect on total omega-6 fatty acids in eggs in phase 1. But dietary 1.5% FO, 4.32% FS and 1.5% FO+4.32% FS supplementation decreased significantly the total omega-6 fatty acids compared to the controls in phase 2. The linolenic acid content of eggs was the highest in eggs from hens fed the diet with added FS, while docosahexaenoic acid content was the highest in eggs from hens fed diets with added FO. Dietary supplementation of FO and FS did not significantly affect the concentrations of serum trigliceride and high density lipoprotein. The serum cholesterol level of hens fed diets containing 1.5% FO+4.32% FS and 8.64% FS was lower than the control group. The addition of FO and FS to diets did not cause any negative effect on some egg quality criteria such as egg weight, yolk weight, yolk ratio, albumen weight, albumen ratio, shell weight, shell ratio, shell strength and shell thickness. The egg production of hens fed a diet containing 4.32% FS was significantly higher than the controls. Feed intake and feed conversion were not affected by all treatments.
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    The effect of table olive preparing methods and storage on the composition and nutritive value of olives
    (2003) Ünal K.; Nergiz C.
    Three types of table olives -green, kalamata and black- were prepared from Memecik variety olives, chemical composition and nutritive values were examined during the processing and storage. Data are provided for moisture, oil and its fatty acid composition, crude fiber and protein, total and reducing sugars, sodium chloride and ash, titratable acidity, pH value and some minerals in table olive flesh samples. The caloric values of three types of olives were calculated by using the content of protein, carbohydrates and oil. Results for three types of table olives obtained during processing and storage are discussed in detail.
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    Prediction of the quality of some turkish wheat genotypes by electrophoretic separation of protein fractions
    (Food and Nutrition Press Inc., 2004) Çaǧlarirmak N.; Kiral A.S.; Ünal K.
    An exploratory study was conducted to compare Konya-Bezostoya and Tokat-Bezostoya, bread making varieties of wheat, and Sofu, a Turkish local strain used for pasta making plus four breeding lines to ascertain which of the breeding lines most likely merits carrying forward for further refinement of the line. The wheat was analyzed for weight per unit of volume, kernel weight, impurities, kernel size and shape and hardness; for moisture, ash and protein content; sedimentation values and wet and dry gluten content to provide background information on kernel characteristics. The chief purpose of the study was to examine the electrophoretic properties of the standard varieties and breeding lines to relate genetic characteristics to bread- or pasta-making potential. Glutenin profiles and gliadin subunits were among the factors studied. Low and high-molecular-weight (HMW) alleles were considered. Two of the breeding lines seemed to have merit for bread making purposes and one additional line for pasta making.