Carotenoids which are a lipophilic component are an organic pigment with antioxidant properties that contain conjugated double bonds. Research on carotenoids have recently concentrated on functional foods, bioavailability and pharmacology due to their potential health benefits to humans. Carotenoid components are occurred a reduction of the biological activity by effect of undesired environmental conditions such as oxygen, heat, light, humidity during food processing and storage or gastrointestinal tract. Applicability in aqueous systems of carotenoids is limited because of lipophilic. Therefore, microencapsulation is an effective way to overcome these problems. Various microencapsulation technique such as spray drying, freeze drying, extrusion, conservation and emulsification has been developed. Besides selected microencapsulation method, coating material is also important in the encapsulation. Recently, multi-layers emulsification method is attracted interest in improving stability, availability in aqueous system and bioavailability of carotenoid load microcapsules. İt is stated in studies that developed microencapsulation techniques or using combine microencapsulation techniques increase encapsulation efficiency and yield. In the present paper, it is aimed to present using microencapsulation techniques in order to enhance stability and bioavailability of carotenoids which are a sensitive component, and current research, developments and trends about the subject.

In our study, validation was carried out at 24 and 200 mg/kg enrichment for residue analysis of nitrate active substance only in lettuce samples. Analyses were performed by using high performance liquid chromatography (HPLC) in lettuce, spinach, salad and arugula samples. In order to eliminate the matrix effect, matrix calibration was used, ie calibration of lettuce samples. Validation of the method was performed with criteria such as precision, repeatability, repeatability limit, reproducibility, repeatability limit, accuracy, linearity of calibration and recovery. The calibration curve was found as linear in the range of 0.2-40 mg/kg. The recovery from the samples is between 97.3-100.2 %. The repeatability and reproducibility values for the two concentrations were 1.89 (matrix+24 ppm) and 3.65 (matrix+200 ppm), 3.951 (matrix+24 ppm) and 3.456 (matrix+200 ppm), respectively. The repeatability and reproducibility limit values are within acceptable limits. Accuracy, precision, combined uncertainty and extended uncertainty (95% confidence: k=2) were found as 0.015 (matrix+24 ppm) and 0.004 (matrix+200 ppm), 0.039 (matrix+24 ppm) and 0.006 (matrix+200 ppm), 0.041 (matrix+24 ppm) and 0.007 (matrix+200 ppm), 0.082 (matrix+24 ppm) and 0.014 (matrix+200 ppm). In our study, the highest nitrate ratio was determined in spinach with 3486 mg/kg in total 102 samples. Lettuce following spinach (2825 mg/kg) showed lower nitrate content, while lower concentrations of nitrate were detected in iceberg (1985 mg/kg) and arugula (1870 mg/kg), respectively. The results may be useful in estimating body intake levels for research on the effects of nitrite and nitrate on human health in vegetable producers and in our daily diet. In addition, the nitrate content of the vegetables analysed in the study is an indicator of the use of nitrogenous fertilizers in the Mediterranean region, but showed no problem for human and animal health.

Seafood poisoning due to mussels contaminated with pathogens is an important health issue all over the world. Increasing attention and efforts are made to improve the last product quality of mussels and to save consumers from food poisoning. In this study, the depuration process of black mussels (Mytilus galloprovincialis) which have a high consumption rate and located in coastal waters of Turkey was tried to improve using Chloramine-T and superoxide disinfectants. For this purpose, mussels contaminated with Escherichia coli were subjected to depuration for 6 hours in the presence of 20 mg / L of two disinfectants. In the study, It was determined that E. coli numbers in the mussels of disinfectant groups with an initial bacterial load of 4.4 Log cfu / g, decreased to 3.70 and 3.86 Log cfu / g, respectively and the depuration was faster than the control group (4.05 Log cfu / g). As a result, it has been concluded that the use of food-suitable disinfectants in deposition waters can be used for faster and more effective purification. However, considering the possibility of chemicals leaving residues in mussels, detailed studies should be carried out.

The aim of this study is to determine the consumption habits of aquatic products in Ardahan province and its districts. The study carried out between 2014 and 2015 was prepared face to face with the consumers by using a questionnaire prepared to measure the consumption habits of aquatic products. The research material consisted of data collected from 302 people by face to face survey method. When the demographic data were analysed according to the results of the study; 73.84% of the respondents were native to Ardahan and 26.15% were immigrants, 38.08% were female, 61.92% were male, the average age was 32.50 and the average monthly income was 1862.80 TL. According to the findings of the study, per capita annual fish consumption is 39 kg and per capita monthly fish consumption is 3.25 kg. The most preferred species of freshwater fish was trout (75.22%), while anchovy was found in marine fish (48.57%). While 21.98% of the participants consume fish, 18.73% chicken, 17.62% veal, 13.52% goose, 13.34% sheep, 6.67% goat meat and 4.19% turkey meat, only 1.71% prefer aquatic species such as mussels and shrimps. The important reason why fish is preferred is being healthy with 45.03%. The other most consumed aquatic products is mussel with 11.92%. It was determined that 76.49% of the consumers did not consume aquatic products other than fish. As a result, it is determined that although there is no coastline of Ardahan and the socio-economic level of the people is not high, the consumption of fish is high. The people of the region who deal with cattle as a source of livelihood prefer to consume aquatic products. In this respect, Ardahan is at the level that can be an example to Turkey.

Ülkemizde yağ bitkilerinin arz ettiği öneme binaen bu bitkilerde yapılacak çalışmaların da önemi fazladır. Keten (Linum usitatissimum L.) bitkisi, uygun olmayan koşulları iyi değerlendirebilen yağ bitkilerinin başında gelen bir bitkidir. Dolayısıyla bu bitki üzerinde yetiştirme tekniğine yönelik olarak yapılacak çalışmaların yanında fizyolojik çalışmalarında yapılması özel önem arz etmektedir. Keten bitkisi iki farklı tohum rengine sahiptir. Tohum rengi, keten yağının bileşiminde bulunan bitkisel yağ kompozisyonu ile ilişkilidir. Ketende tane renginin birkaç gen tarafından kontrol edildiği ve markör özellik taşıdığı yapılan çalışmalarda tespit edilmiştir. Bu araştırmada; tane rengi ve tane ağırlığının tohumun biyolojik gücüne etkilerini belirlemek amacıyla yürütülmüştür. Araştırmada bitki materyali olarak; sarı ve kahverengi taneye sahip iki keten hattı ve 1000 tane ağırlığı bakımından küçük ve büyük olmak üzere iki farklı keten grubu kullanılmıştır. Deneme; Bölünmüş Parseller Deneme Desenine göre 3 tekerrür olarak, 22±1°C’ye ayarlı inkübatörde yürütülmüştür. Araştırma sonucu; tohumun çimlenme gücü üzerine tane renginin etkisinin çok önemli olduğu, tane büyüklüğünün etkisinin ise önemsiz olduğu tespit edilmiştir. Elde edilen bulgulara göre keten bitkisinde kahverengi tohumların çimlenme gücünün daha yüksek olabileceği, 1000 tane ağırlığı ile çimlenme gücü arasında ise doğrudan bir ilişkinin olmadığı sonucuna varılmıştır.

In renewable system, to improve growth performance and enhance the stability of broiler meat may be alternative dietary garlic and its derivatives. The effects of dietary fresh garlic extract (FGE) or aged garlic extract (AGE) supplementation on performance, serum cholesterol and meat thiobarbituric acid (TBA) values and the organoleptic traits of cooked meats were investigated using 540 one-day-old Ross 308 broilers. Treatments: negative control (NC, basal diet), positive control (E200, basal diet + 200 mg vitamin E kg-1), FGE (FGE10, basal diet + 10 ml FGE kg-1) and graded levels of AGE (AGE5, AGE10 and AGE15, basal diet + 5, 10 and 15 ml AGE kg-1, respectively). Sensory appraisal was used to establish the consumer acceptability of boiled, grilled or roasted meats. FGE10 increased weight gain compared to NC, AGE5 and AGE10, whereas FGE10, E200 and AGE decreased serum cholesterol and meat TBA levels compared to NC. The alleviating effects of FGE10, AGE5 and AGE10 were higher than that of vitamin E. All garlic extracts did not affect the colour and nutritional quality of raw meat. Overall consumer acceptance of meat increased by FGE10, while it decreased by AGE10 and AGE15 compared to NC. Sensory scores of grilled meat were higher than for boiled and roasted meats. These results indicate that FGE proved an advantage for sustainable broiler production due to improve in the growth performance and consumer acceptance of cooked meat.

Origanum onites L essential oil of antispasmodic activity, chemical composition and the radical scavenging were determined in vitro. GC-MS analysis that was been carried out upon the essential oil revealed 31 different composites which equal to 94.60% in which Carvacrol (49.01%), linalool (13.3%) were found as major components. Free radical scavenging capacities of the essential oil were measured by 2,2-diphenyl-1-pikrilhidrazil (DPPH) assay and via β-carotene linoleic acid experiment were determined. It showed IC50 value of Origanum onites essential oil was been identified as 430 mg/mL, the IC50 value for BHT was 19.8 mg/mL, the β-carotene linoleic acid assay also showed the 80% inhibition with the essential oil of Origanum onites.it showed very strong antioxidant activity. In addition, dose dependently (0.1, 0.5, 1.0 and 2 mg/mL) inhibits the contraction induced by, it was able to inhibit the rat ileum muscle by 2 mg/mL to 100%.

The study was aimed to improve the nutritional composition of nettle (Utrica dioica L.) having positive effects on animals by solid-state fermentation. Aspergillus niger was used as a inoculant in fermentation of nettle. Before and after fermentation, crude protein (CP), ash, ether extract (EE), nitrogen-free extract (NFE), crude fiber (CF), hemicellulose (HC), neutral detergent fiber (NDF), acid detergent fiber (ADF) and acid detergent lignin (ADL) contents of nettle were determined. The ash, NFE and HC content of nettle were increased by fermentation. However, A. niger decreased the CF and EE in nettle. The results showed that solid-state fermentation with A. niger can be used to improve the nutritional composition of nettle.

The combinations of organic liquid fertilizer material obtained from sea lettuce (Ulva lactuca) and different concentrations of zeolite were applied to the cucumber (Cucumis sativus) plant in six treatments with three replicates each. The combinations of the experimental groups were as follows; control group, G1 group 180 g Z (Zeolite), G2 group 90 g Z + 1140 ml Liquid Fertilizer (LF), G3 group 180 g Z + 620 ml LF, G4 group 270 g Z + 310 ml LF, G5 group 620 ml LF. Except the control group, all zeolites were applied with the first dose of liquid fertilizer, and other liquid fertilizer doses were given in three periods, after germination, flowering and yield. While the lowest germination rate was in control group, the highest rate was in group with 60 g zeolite. While the lowest seedling weight was observed in group with 90 g zeolite + 1140 ml liquid fertilizer, the highest rate was in group with 180 g zeolite + 620 ml liquid fertilizer. While the highest cucumber weight was observed in group with 270 g zeolite + 310 ml liquid fertilizer, the lowest was in group with 620 ml liquid fertilizer. Therefore, it may be said that zeolite has positive effect on germination. On the other hand, liquid fertilizer and zeolite combinations may have positive effects on the weight of the cucumber seedling and yield.

Agricultural developments mostly depend on rapidly increasing world population. Tomato is a highly nutritious vegetable. Post-harvest technologies are often applied to prolong the consumption periods of tomato. Drying is one of the oldest methods of conservation. In this study, five different drying methods (oven drying, vacuum oven drying, sensitive drying, shaded-open atmosphere drying and sun drying) was used. Drying processes were carried out with dryers at 55°C, 60°C, 65°C and 70°C temperatures. All drying trials were performed in three replications. Drying performance (drying duration, final moisture content), drying kinetics, colour analysis, energy consumption, chemical analyses were performed for all drying methods. Fresh samples reached to desired moisture contents in 20-300 hours. To define time-dependent changes in moisture contents, Page, Logarithmic and Midilli-Küçük equations were used. Page equation yielded the worst estimations. There were not significant differences in “a” redness values of fresh samples, 65-70C of oven dryer and all temperatures of sensitive dryer. Sensitive dryer yielded the closet pH values to fresh samples. Based on current findings, it was concluded that oven drying, and sensitive drying were suitable for drying Selinus tomato variety.