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Öğe Comparison of biochemical parameters and volatile compounds of some hybrid tomato varieties [Bazı hibrit domates çeşitlerinin biyokimyasal parametrelerinin ve uçucu bileşenlerinin karşılaştırılması](Ankara University, 2017) Kara M.; Şahin H.; Dinç S.; Yildiz O.; Can Z.; Er F.Evaluating morphological and quality parameters such as shape, colour, size and yield are all common practices when assessing the quality of fruit and vegetables. In recent times, however, consumer interest in foods with high levels of bioactive components, high mineral content and acceptable flavor has increased considerably. In order to make a contribution to the production of fruit and vegetables with excellent morphological properties and high levels of bioactive compounds, two different hybrid tomato varieties (Ege F1 and Alida F1) cultivated in Turkey were compared in terms of their biochemical parameters (phenolic compounds, ascorbic acid, ?-carotene, lycopene, minerals) and volatiles. While the Alida F1 was rated the highest for lycopene and mineral values, the Ege F1 was outstanding in terms of phenolic compounds and volatiles. Ascorbic acid content of both cultivars ranged from 7.13 to 11.94 mg 100 g-1 fw. The quantity in the Ege hybrid was remarkable. Chlorogenic acid, caffeic acid, p-coumaric acid, rutin and trans ferulic acid were the main phenolic compounds in both cultivars. Potassium (K) (4.09%) was the most predominant mineral in both hybrid tomatoes. Hexenal had the highest concentration value among tested volatiles followed by 2-hexenal, (6-methyl)-trans- 5-Hepten-2-one. Comparison of biochemical parameters and volatiles of both varieties will give breeders an opportunity to choose the desired traits of tomatoes to cultivate for both taste and nutritional value. © Ankara Üniversitesi Ziraat Fakültesi.Öğe The effects of the intake of an isotonic sports drink before orienteering competitions on skeletal muscle damage(Society of Physical Therapy Science (Rigaku Ryoho Kagakugakkai), 2016) Colakoglu F.F.; Cayci B.; Yaman M.; Karacan S.; Gonulateş S.; Ipekoglu G.; Er F.[Purpose] The purpose of this study was to investigate the effects of the intake of an isotonic sports drink (500 ml water, 32 gr carbonhydrate, 120 mg calcium, 248 mg chloride, 230 mg sodium) the level of the skeletal muscle damage of orienteering athletes. [Subjects and Methods] The study was carried out on 21 male elite orienteering athletes. The athletes were divided into two groups by randomized double-blind selection. The experimental group (n=11) was given the isotonic sports drink, while the placebo group (n=10) was given 500 ml pure water. Blood samples were taken pre-competition, post-competition, 2 hours post-competition and 24 hours postcompetition. [Results] The pre-c troponin, myoglobin and creatinine kinase serum levels of the placebo group were significantly lower than the post-competition and 2 hours post-competition values. The 24 hours post-competition levels of the same analyses were also significantly lower than the post-c and 2 hours post-competition. The precompetition troponin, myoglobin and creatinine kinase levels of the experimental group were found to be significantly lower than the post-competition, 2 hours post-competition 24 hours post-competition values. In conclusion, the present results suggest that the intake of supportive sports drinks before exercising significantly prevents the observed muscle damage. The study showed that serum myoglobin levels between the experimental and the placebo group is significantly different during the 2 hours post-competition period. [Conclusion] The level of serum creatinine kinase and myoglobin accurately shows the extent of the muscle damage. However, further studies on the effect of isotonic sports drink in different training programs on the cell membrane and the muscle damage are needed. © 2016 The Society of Physical Therapy Science.Öğe Phosphate solubilization potentials of acinetobacter strains and their relations with soil properties(2010) Ogut M.; Er F.; Kandemir N.Phosphate solubilizing bacteria can be used as soil or seed inoculum to increase soil phosphorus (P) availability for agricultural purposes. There is also a possibility of using these microorganisms to biotechnologically dissolve phosphate ores for the production of phosphorus fertilizers. Twenty-one soil samples were collected along a highway in Turkey to isolate phosphate solubilizing bacteria. A total of 20 phosphate solubilizers were isolated from the rhizosphere of wheat and maize grown in the pots, which contained the collected soil samples. The isolates were distributed among the genera, Acinetobacter (7), Pseudomonas (7), Enterobacter (2), Enterococcus (1), Escherichia (1), Photorhabdus (1), and Bacillus (1) as determined by the 16S rDNA gene sequence analysis. Since the Acinetobacter species were most effective in Pikovskaya's agar, which contained tricalcium phosphate for the sole P-source, they were further experimented for the phosphate solubilization in batch cultures. The mean phosphorus dissolved in 5 day incubation ranged between 167 and 1022 ppm P. The initial pH of 7.8 dropped below 4.7 in six isolates with a gluconic acid production in the concentrations ranging between 27.5 and 37.5 mM. Acinetobacter isolates have some potential as an inoculum both for soil and biotechnological Psolubilization. © 2010 al-Farabi Kazakh National University.Öğe Survival of a phosphate solubilizing microorganism in ion-sterile carriers(2010) Er F.; Ogut M.A cold-tolerant phosphate solubilizing bacterium (PSB) was isolated from roots of ryegrass (Lolium perenne L.). Studies involving phosphate solubilization in liquid culture and survival of the PSB in nonsterile zeolite, leonardite, peat, rock phosphate, and an organic fertilizer were performed. The PSB was able to dissolve 163 ppm P with a simultaneous fall in pH (from 7.7 to 5.7) in Pikovskaya's medium during a ten-day incubation. The number of PSB declined logarithmically in 28 °C incubation regardless of the carrier. The rate of decrease in PSB population was less pronounced in zeolite. However, the PSB's population density increased up to 10 9 cfu g -1, and stayed in the range of 10 8 to 10 9 cfu g -1 in zeolite and rock phosphate after 13-weeks of storage at +4 °C. The contaminant microorganisms also grew in the carriers, with population densities ranging between 10 8 to 10 9 cfu g -1 at week-9. The suppression of the local microorganisms is required to increase the quality of organic fertilizer by the addition of PSB. Zeolite could be a good carrier, due to its large surface area and porosity, which allow high number of microorganisms to occupy. © 2010 al-Farabi Kazakh National University.
