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Full-Text Articles in Life Sciences
Effect Of Various Antioxidants And Their Combinations On Bull Semen Cryopreservation, Şükrü Güngör, Ayhan Ata, Muhammed Enes İnanç, John P. Kastelic
Effect Of Various Antioxidants And Their Combinations On Bull Semen Cryopreservation, Şükrü Güngör, Ayhan Ata, Muhammed Enes İnanç, John P. Kastelic
Turkish Journal of Veterinary & Animal Sciences
Our objective was to evaluate the effects of adding 50 mM trehalose (TRE), 1 mM cysteine (CYS), or 400 µg catalase (CAT), individually or in combinations, to a Tris-based semen extender and determine the effects on fresh, chilled-equilibrated, and frozen-thawed bull sperm. Ejaculates from three Holstein bulls (1-3 years old) were pooled, divided into six equal portions, and put into a Tris-based extender supplemented with no additive (control), TRE, CYS, CAT, TRE + CYS, or TRE + CYS + CAT. In chilled-equilibrated semen, motility was highest in CAT but lowest in the control (P < 0.05). In thawed semen, motility was lower (P < 0.05) in CAT than in all other groups, which were not different. Based on a hypoosmotic swelling test (HOS test), TRE, CYS, and their combinations had higher (P < 0.05) percentages of sperm with an intact plasma membrane than the control or CAT groups. The TRE group had the least (P < 0.05) morphologically abnormal sperm. Plasma membrane and acrosomal integrity (PMAI) and high mitochondrial membrane potential (HMMP) values were highest in TRE and TRE + CYS and were lower (P < 0.05) in the control. Furthermore, HMMP was positively correlated with PMAI and HOS tests, but negatively correlated with major + minor abnormalities (r = 0.66, 0.242, and -0.349). In conclusion, the addition of TRE, with or without CYS, to a Tris-based semen extender improved several aspects of the frozen-thawed quality of bull semen. However, addition of CAT, by itself or in combination with other additives, did not protect bull sperm against cryopreservation-induced defects.
Effect Of Rootstocks On Phytochemical Properties Of Apricot Fruit, Müttali̇p Gündoğdu
Effect Of Rootstocks On Phytochemical Properties Of Apricot Fruit, Müttali̇p Gündoğdu
Turkish Journal of Agriculture and Forestry
The phytochemical influence of rootstocks on the Hacıhaliloğlu apricot cultivar was examined in this study. Myrobolan 29-C, Myrobolan GF-31, Marianna 2624, Pixy, and Tokaloğlu rootstocks were used and organic acid, sugars, vitamin C, total antioxidant capacity, and phenolic compounds were identified. The highest phenolic compounds and antioxidant capacity were observed in Tokaloğlu rootstock. While Myrobolan GF-31 stood out in terms of organic acids and vitamin C, Pixy stood out in terms of sugar. The highest sugar content (sucrose) was recorded as 24.178 mg 100 g-1 in 'Pixy'. It was determined that Tokaloğlu rootstock had increased organic acid (1030.730 mg 100 …
Effects Of Cooking And Extra Virgin Olive Oil Addition On Bioaccessibility Of Carotenes Intomato Sauce, Merve Tomaş, Osman Sağdiç, Gi̇zem Çatalkaya, Derya Kahveci̇ Karincaoğlu, Esra Çapanoğlu Güven
Effects Of Cooking And Extra Virgin Olive Oil Addition On Bioaccessibility Of Carotenes Intomato Sauce, Merve Tomaş, Osman Sağdiç, Gi̇zem Çatalkaya, Derya Kahveci̇ Karincaoğlu, Esra Çapanoğlu Güven
Turkish Journal of Agriculture and Forestry
In this study, the effects of cooking and the addition of extra virgin olive oil on the in vitro bioaccessibility of carotenoids in tomato sauce were evaluated. The results indicated that total antioxidant activity, α-tocopherol, lycopene, β-carotene, lutein, and chlorophyll a contents were positively affected by the combination of cooking and addition of extra virgin olive oil. Moreover, after in vitro digestion, for intestinal phase, lycopene and Β-carotene were observed in all samples, whereas α-tocopherol and chlorophyll a were not detected in any of the samples. Lycopene (≈8.5-fold) and β -carotene (≈5-fold) were significantly improved (P < 0.05) by the effect of cooking and addition of extra virgin olive oil to the samples compared to control tomato sauce (without oil and cooking).
Chicken Feather Protein Hydrolysate As A Biostimulant Improves The Growth Of Wheat Seedlings By Affecting Biochemical And Physiological Parameters, Ebru Genç, Ökkeş Atici
Chicken Feather Protein Hydrolysate As A Biostimulant Improves The Growth Of Wheat Seedlings By Affecting Biochemical And Physiological Parameters, Ebru Genç, Ökkeş Atici
Turkish Journal of Botany
We derived a protein hydrolysate with rich content, which includes proteinogenic and nonproteinogenic amino acids, from chicken feathers by using an alkaline hydrolysis procedure with high yield success. After foliar application of aqueous solutions (0.05%, 0.075%, and 0.1%) of chicken feather protein hydrolysate (CFPH) to the seedlings of wheat (Triticum aestivum L. `Altındane? and `Bezostaya?), their effects were evaluated on important physiological and biochemical parameters. Treating plants with CFPH stimulated the expression of RuBisCo and increased root and shoot lengths, fresh and dry weights of the seedlings, and photosynthetic pigment content. In addition, applying CFPH at 0.075% and 0.1% concentrations …