Yazarlar
- Baltaci, Cemalettin(26)
- Ürkek, Bayram(25)
- Ozturk, Samet(24)
- Şengül, Mustafa(20)
- Yuksel, Ferhat(19)
- Kaya, Hacer(15)
- Baltacı, Cemalettin(12)
- İlyasoğlu, Huri(12)
- Acet, Tuba(10)
- Aksakal, Vecihi(10)
- Adanacioglu, Hakan(9)
- Erdogdu, Ferruh(9)
- Liu, Shuxiang(9)
- Yolcu, Halil(9)
- Menevseoglu, Ahmed(8)
- Merddan, Kurtuluş(8)
- Akdoğan, Arda(7)
- Gündoğdu, Engin(7)
- Karabulut, Besim(7)
- Sirat, Abdulveli(7)
- Bahar, Bilge(6)
- Bayram, Bahri(6)
- Doğan, Nilgün(6)
- Güzel, Melih(6)
- Karaalp, Musa(6)
- Kaya, H.(6)
- Yüksel, Ferhat(6)
- Öz, Mehmet(6)
- Akar, Bülent(5)
- Burnaz, Nesibe Arslan(5)
- Coskun, Eda(5)
- Gül, Abdulkadir(5)
- Gürmeriç, Hüseyin Ender(5)
- Ilyasoglu, Huri(5)
- Kalkisim, Ozgun(5)
- Karaman, Safa(5)
- Karpuz, Ömer(5)
- Mazlum, Halit(5)
- Okcu, Zuhal(5)
- Ozdes, Duygu(5)
Yayınlar
- MakaleAçık Erişim2020Determination of Antioxidant and Antimicrobial Activities and Synergistic effect with Antibiotics of Morus nigra L. Extracts Grown in Elazig Province
Ozcan, Kadriye; Acet, Tuba; Akmeşe, Osman
Possible side effects of drugs used as antimicrobial agents and microorganisms' resistance to these drugs pose a great danger to human health. This situation led to the scientific community to new searches. It is known that many herbal products consumed as food are also used by the public for the protection of diseases. However, many of these are still not confirmed by scientific data. In this regard, in the current study, Morus nigra L. (black mulberry) fresh fruit extracts (ethanol, methanol and ethyl acetate) collected from Elazığ province and used by local people to alleviate many diseases, total antioxidant content of total phenolic and total flavonoids capacities were determined. However, the phytochemical content of the ethanol extract was evaluated by RP-HPLC. In addition, their antimicrobial properties and synergies with antibiotics (chloramphenicol, novobiosin and nalidixic acid) were tested. The total phenolic content value and antioxidant properties of ethanol extract were significantly higher than the others. The major component of this extract was determined as chlorogenic acid. It was determined that the extracts showed low efficacy against the test microorganisms, however, all extract antibiotic mixtures exhibited a full synergistic effect on P. aeroginosa, a serious pathogen, except for the methanol extract / chloramphenicol combination. The full synergy is important in terms of ensuring that the antibiotic is more effective at a lower dose. As a result, due to the biological activities of M. nigra fruit extracts, it is thought to have the potential to be used as a natural and alternative source in the food and pharmaceutical industries.
- MakaleAçık Erişim2020Soil erosion risk assesment with MICONA model in Melet River Basin
Uzun, Ali; Hatipoglu, Ilter Kutlu
Soil erosion is an incident that is effective in shaping the surface. However, the acceleration of ero-sion by man is a problem. Erosion problem causes agricultural lands to become infertile and disap-pear over time. This problem is even more pronounced in Turkey which has a rugged topographyand a long history of settlement. Therefore, detailed field studies are needed to determine the sizeof the problem and to solve it. In this study, the risk of erosion of the Melet River Basin was inves-tigated. The Melet River is an important river that separates the Central and Eastern Black Sea di-visions of the Black Sea Region. It emerges from the west-facing slopes of the Karagöl Mountainsand flows into the Black Sea from Ordu City Center. The catchment area of the river is 2006 km2.The basin is bounded by the water section lines passing through the Giresun Mountains from thesouth and the east and the water section lines passing through the Canik Mountains from the west.Erosion risk of the basin was investigated by using the MICONA model developed by adding heightand soil depth data to the ICONA method. While preparing the study, field observations, GIS tech-nologies were used together. The basic raster datas used in the model which NDVI (vegetation den-sity), land use, bedrock, soil depth, height and slope are compiled from field studies, satellite imagesand documents of various government organizations. According to MICONA model, 25.2% of thebasin is very high, 20.1% is high and 27.2% has moderate erosion risk. In return, 17.2% of the basinhas a low erosion risk and a very low erosion risk of 10.3%. The areas with the highest erosion riskin the area are concentrated upper course of the basin where in the west of Karagöl. In the west ofMesudiye, the topography is simplified and the risk of erosion decreases
- MakaleAçık Erişim2020Siyah üzüm çekirdeği tozunun yoğurtların bazı fizikokimyasal, mikrobiyolojik ve duyusal özellikleri üzerine etkisi
Kalyas, Alperen; Ürkek, Bayram
Bu çalışmada, %0 kontrol numunesi ve farklıoranlarda (0, %0.5 ve %1) siyah üzüm çekirdeği tozu(ÜÇT) ilave edilen yoğurtların bazı kalite özellikleriincelenmiştir. pH değerleri depolama süresine bağlıolarak düşerken, asitlik değerleri ÜÇT ilavesiyleyükselmiştir. Tüm örneklerin serum ayrılmasıdeğerleri depolamanın sonunda düşmüştür. %1 ÜÇTiçeren örnek örneğin en yüksek viskozite (50 ve 100rpm) ve kıvam katsayısı değerlerine sahip olduğugözlenmiştir. L*, b*, C* ve beyaz indeksi değerleriÜÇT ilavesiyle düşmüş, sadece a* değerleriyükselmiştir. %0.5 ve %1 ÜÇT içeren yoğurtörneklerinin tüm duyusal özellikler bakımındankontrol örneğinden daha düşük puanlara sahipolduğu bulunmuştur. Sonuç olarak, ÜÇT doğal birrenklendirici kaynağı olarak, yoğurtların reolojikdeğerlerini ve viskozitesini düzeltmek içinkullanılabilir. Yoğurt örneklerinin duyusalözelliklerini, ÜÇT ilavesi olumsuz etkilediğinden,yoğurda %0.5 den daha düşük konsantrasyonlardaÜÇT ilavesi denenmelidir
- MakaleAçık Erişim2020Determınatıon of Physıcal and Chemıcal Propertıes of Marmelats Produced From Hunnap (Zizyphus Jujuba Mill.) Fruıt
Kaplan, Benay; Okcu, Zühal
In this study, the changes in the physical and chemical properties of jujube (Zizyphus jujuba Mill.) Fruit and marmalade produced from this fruit at different temperatures (+4 C and +20 C) during storage for 3 months were determined. Water soluble dry matter, titratable acidity, pH, dry matter, ash, ascorbic acid (vitamin C), sucrose, invert sugar, total sugar, color in the 0, 1, 2 and 3 months of three months storage, Total phenolic substance, antioxidant capacity (ABTS and DPPH), yeast and mold analyzes were performed. During the storage period, in marmalade samples produced from jujube fruit, a decrease was observed in the amount of water soluble dry matter, invert sugar, total sugar, ash, dry matter, ascorbic acid (vitamin C), L, a, b values, phenolic substance and antioxidant activity amounts. In terms of temperature, high values are found in water soluble dry matter, pH, total sugar, invert sugar, ABTS and DPPH among the parameters examined from storage at + 20ºC, while in storage at + 4ºC; The highest values were obtained in terms of total dry matter, ascorbic acid, sucrose, L, a and total phenolic substance.
- MakaleAçık Erişim2020Yerel Kuru Fasulye (Phaseolus vulgaris L.) Genotiplerinin Tane Verimi, Verim Unsurları ve Bazı Kalite Özelliklerinin Belirlenmesi
Sirat, Abdulveli
Bu araştırma, karasal iklimlerin karakteristik özelliğini taşıyan Gümüşhane ili Şiran ekolojik koşullarında Orta ve Doğu Karadeniz Bölgesinden toplanan 12 yerel fasulye genotipinin tane verimi, verim unsurları ve bazı kalite özelliklerini belirlemek için yürütülmüştür. Deneme 2017 ve 2018 yıllarında Tesadüf Blokları Deneme Desenine göre üç tekrarlamalı olarak kurulmuştur. İki yıl ortalamalarına göre, ekimden çiçeklenme başlangıcına kadar geçen sürenin 39.30-45.40 gün, hasat olgunluk süresinin 113.33-120.17 gün, bitki boyunun 56.32-60.67 cm, ilk bakla yüksekliğinin 10.54-11.50 cm, bitkide bakla sayısının 9.47-10.45 adet, bakla uzunluğunun 7.35-10.29 cm, baklada tane sayısının 2.95-5.77 adet, tane verimi 185.07-277.68 kg da-1, 100 tane ağırlığının 32.27-43.00 g ve protein oranının %18.97-24.32 arasında değiştiği tespit edilmiştir. En yüksek dekara tane verimleri GF1 (277.68 kg da-1) ve GF2 (273.74 kg da-1) genotiplerinden elde edilmiştir. Bu genotipler çiçeklenme başlangıcı ve hasat olgunluk süresi bakımından daha erkenci oldukları tespit edilmiştir. Ayrıca bu genotipler bitkide bakla sayısı, bakla uzunluğu, baklada tane sayısı, 100 tane ağırlığı ve protein oranı açısından da en yüksek değere sahip olmuşlardır. Bu nedenle Gümüşhane-Şiran ekolojisine benzer şartlarda GF1 ve GF2 genotiplerin yetiştirilmesi önerilmektedir
- MakaleAçık Erişim2020Can Zeolite Application Decrease the Need for Nitrogen in Silage Corn?
Gül, Zeynep; Tang, Mustafa; Yolcu, Halil
The effects of applications of zeolite, nitrogen and zeolite + nitrogen on yield, quality and some morphological traits of silage corn was researched at the Research Station of the Agriculture Faculty, University of Ataturk, Eastern Turkey, during 2012 and 2013. Treatments included a control, three zeolite (Z(1): 500, Z(2): 1000, Z(3): 1500 kg ha(-1)), three nitrogen (N-1: 50, N-2: 100, N-3: 150 kg ha(-1)) and nine combinations of zeolite + nitrogen. The experimental design was randomized complete blocks with three replications. The application of zeolite + nitrogen application enhanced silage yield by 5.8-18.9%, dry matter yield by 4.5-21.4%, corncob rate by 6.6%, plant height by 3.0-16.1% and leaf rate by 17.5%. Further, the application of zeolite + medium or low nitrogen application produced similar silage yield, dry matter yield, dry matter rate, crude protein content, ADF, NDF, corncob rate, stem rate, plant height and leaf rate in comparison to the highest level nitrogen application. The results indicate that the application of zeolite + nitrogen can be used to increase efficiency of nitrogen and to decrease nitrogen requirements in silage corn for yield and other parameters.
- MakaleAçık Erişim2020The Effects of Boron (Orthoboric Acid) Supplementation into Diets on Serum Lipid and Protein Profiles of Hens During Late Laying Period
Kaya, Hacer; Macit, Muhlis
This study was carried out to determine the effects of boron addition into the diets on serum parameters of hens. A total of 288 Lohman laying commercial hybrid chickens of 62 weeks were fed for 12 weeks with four different rations containing basal feed 0 (B0), 50 (B50), 75 (B75) and 150 (B150) mg / kg B. Each group was replicated in 18 cages, four hens per cage. During the study, 16 hours lighting program was applied, feed and water were given as ad-libitum. The effect of boron supplementation was not significant on the rates of diacylglycerol and hydrocarbon+cholesterol esters (P>0.05) but the rates of polarlipid, triacylglycerol (P<0.05), and serum total cholesterol (P<0.01) were found significant. Lipid peroxidation values of groups fed with diets including 75 and 150 mg/kg B were determined lower than others. Addition of ration B affected different molecular weight proteins at different levels. In conclusion, it has been determined that the addition of B at different levels into the diets of laying hens during late laying period significantly influenced the serum lipid peroxidation, serum lipid and serum protein profile, but further researches are needed to clarify the changes related to the effects of B addition into diets on mentioned parameters of laying hens.
- MakaleYalnız künye2020Process for production of microencapsulated anthocyanin pigments from Rosa pimpinellifolia L. fruits: optimization of aqueous two-phase extraction, microencapsulation by spray and freeze-drying, and storage stability evaluation
Odabas, Halil Ibrahim; Koca, Ilkay
Rosa pimpinellifolia L. fruits (RPF) are promising source of anthocyanin pigments. The objectives of this study were to optimization of the aqueous two-phase extraction (ATPE) process of anthocyanin from RPF and microencapsulation of anthocyanin-rich RPF extract. The optimal ATPE conditions were as follows: 0% HCl, 30% ethanol, 19% ammonium sulfate, and liquid to solid ratio 51.71, 97.71 min, and 30 degrees C extraction temperature. Predicted anthocyanin yield at the optimum conditions was 1578.90 mg cyanidin 3-glucoside equivalent/100 g dry fruit. ATPE resulting in 1.80-fold increase in the purity of anthocyanins when compared to conventional solvent extraction (CSE). The composition of the anthocyanins were determined with HPLC-QTOF-MS. Freeze-drying and spray-drying methods were employed for the production of microencapsulated anthocyanin pigments. The half times of microencapsulated anthocyanins at 4, 25 and 37 degrees C were determined as 12.16, 6.60 and 3.12months for freeze-dried microcapsules, and 16.50, 9.24 and 4.29 months for spray-driedmicrocapsules, respectively.
- MakaleAçık Erişim2020SOS5 gene-abscisic acid crosstalk and their interaction with antioxidant system in Arabidopsis thaliana under salt stress
Acet, Tuba; Kadıoğlu, Asım
SOS5 locus, encodes cell wall adhesion protein under salt stress conditions in plants, and it is required for normal cell expansion as well as for sustaining cell wall integrity and structure. However, it is still unknown how this gene locus-ABA cross-talk and interacts with the antioxidant mechanism under salt stress conditions. For this purpose, the study focused on mutant sos5-1 plant treated with ABA under NaCl stress and observed its growth and development as well as stomatal aperture, lipid peroxidation, proline, hydrogen peroxide (H2O2) and ABA contents, and some antioxidant enzyme activities. In addition, the expression levels of ABA related genes have been analysed by RT-PCR after stress application. According to findings, sos5-1 mutant plants treated with ABA under salt stress resulted in eliminated cellular damage compared to those which are solely exposed to salt stress; other observations include closing of stomata, decreased H2O2 content, increased amount of proline, and similarity with the wild type due to induced antioxidant enzyme activities. Besides, both ABA biosynthetic and inducible gene expressions of the mutant plant under salt stress were lower compared to the control, and catabolism gene expression was higher. As a result, SOS5 gene in synergy with ABA, scavenge the ROS by stimulating antioxidant system, leads to an increase in stress related gene expressions and thus contributes to salinity tolerance. This study is significant in the way that it shows how SOS5 gene locus, under salt stress conditions, interacts with antioxidant system in sustaining cell wall integrity.
- MakaleAçık Erişim2020Bacteriocin producing bacteria isolated from Turkish traditional sausage samples
Erkaya, Elif; Genc, Berna; Akbulut, Sumeyya; Adiguzel, Gulsah; Omeroglu, Mehmet Akif; Ozkan, Hakan; Adiguzel, Ahmet
In this study, traditional sausage samples from different provinces of Turkey (Gaziantep, Antalya, erzurum and Kahramanmaras) were obtained and one hundred three isolates were collected. Using the (GTG)5-PCR genomic fingerprint analysis method, seven of them were observed to be different and conventional tests of these isolates were performed. Molecular identification of two isolates carrying the bacteriocin gene and having antimicrobial activity by agar disc diffusion method was performed by 16S rRNA sequence analysis. As a result, the seven isolates were identified as Aerococcus urinaeequi (EK1), Streptococcus salivarius (EK2), Leuconostoc mesenteroides (EK3), Macrococcus caseolyticus (EK4), Lactococcus garvieae (EK5), Staphylococcus saprophyticus (EK6) and Lactobacillus sakei (EK7). Among these strains, it has been determined that Ln. mesenteroides and L. sakei carried the mecentericin and sacacin genes. When antimicrobial activity against different strains was examined, inhibition formations of Ln. mesenteroides and L. sakei on Enterococcus faecalis, Shigella dysenteriae and Escherichia coli O157: H7 were observed.
- MakaleAçık Erişim2020Investigation of healthy living strategies in elderly who achieved to live long and healthy
Sahinoz, Turgut; Sahinoz, Saime
Objective: To determine the lifestyles, healthy living strategies and socio-cultural characteristics of elderly people who lived long and healthy. Methods: This study was a cross-sectional study. This study was conducted on 472 elderly patients, aged 80 years and over, selected by random sampling method. The socio-demographic characteristics and daily living activities of the elderly were determined by face to face interview technique using the “Elderly Questionnaire” developed by the researchers in 2018. Chi-square test was used for statistical analysis. Results: Based on the average age (84) of the elderly in the research group, it was seen that they were able to exceed the average life expectancy of their fathers (72) and mothers (73). It has been found that the participants live 11-12 years longer than their parents. It was also found that more than half (51.9%) of the elderly have the habit of walking regularly every day. It was determined that the elderly mostly consumed vegetables and fruits (88.5%), milk and dairy products and meat, respectively. Conclusion: The elderly stated that natural and healthy nutrition, working and staying away from stress in the top three places as the reason of their long and healthy life.
- MakaleAçık Erişim2020In situ monitoring of sugar content in breakfast cereals using a novel ft-nir spectrometer
Aykas, Didem Peren; Ball, Christopher; Menevseoglu, Ahmed; Rodriguez-Saona, Luis E.
This research demonstrates simultaneous predictions of individual and total sugars in breakfast cereals using a novel, handheld near-infrared (NIR) spectroscopic sensor. This miniaturized, battery-operated unit based on Fourier Transform (FT)-NIR was used to collect spectra from both ground and intact breakfast cereal samples, followed by real-time wireless data transfer to a commercial tablet for chemometric processing. A total of 164 breakfast cereal samples (60 store-bought and 104 provided by a snack food company) were tested. Reference analysis for the individual (sucrose, glucose, and fructose) and total sugar contents used high-performance liquid chromatography (HPLC). Chemometric prediction models were generated using partial least square regression (PLSR) by combining the HPLC reference analysis data and FT-NIR spectra, and associated calibration models were externally validated through an independent data set. These multivariate models showed excellent correlation (Rpre ≥ 0.93) and low standard error of prediction (SEP ≤ 2.4 g/100 g) between the predicted and the measured sugar values. Analysis results from the FT-NIR data, confirmed by the reference techniques, showed that eight store-bought cereal samples out of 60 (13%) were not compliant with the total sugar content declaration. The results suggest that the FT-NIR prototype can provide reliable analysis for the snack food manufacturers for on-site analysis.
- MakaleAçık Erişim2020Effects of starter culture and storage on volatile profiles and sensory characteristicof yogurt or cream butter; [Utjecaj starter kulture i skladištenja na hlapive sastojke i senzorska svojstva maslaca od vrhnja i maslaca od jogurta]
Gundogdu, Engin; Cakmakci, Songul; Hayaloglu, Ali Adnan
In this study volatile compounds and sensory properties of butter produced from cream or yogurt using Lactococcus lactis subsp. lactis biovar. diacetylactis or Leuconostoc mesenteroides subsp. cremoris as well as a mixture of these two bacteria were investigated over 60 days. A total of 10 esters, 6 aldehydes, 11 ketones, 16 alcohols, 6 acids, 2 sulphides, 3 terpenes, and 3 miscellaneous compounds were detected. There were more volatile compounds in cream butter than in yogurt butter. While S-methyl thioacetate was only found in yogurt butter samples, hexanal, ethanol, 2-nonanone, 2-pentanone, 2-heptanone, acetic, butanoic (butyric) and hexanoic acid were the most abundant volatiles in both cream and yogurt butter. The results showed that the use of starter in the manufacturing of yogurt butter, which is traditionally produced without starters, affected the volatile compounds and sensory properties. The highest general acceptability scores were given to the butter samples containing mixed cultures at the end of storage.
- MakaleYalnız künye2020Preparation and characterization of bacterial cellulose produced from fruit and vegetable peels by Komagataeibacter hansenii GA2016
Güzel, Melih; Akpınar, Özlem
This study focused on the investigation of bacterial cellulose production potency of some fruit and vegetable peels (cucumber, melon, kiwifruit, tomato, apple, quince and pomegranate) with Komagataeibacter hansenii GA2016. Fruit and vegetable peels were hydrolyzed, used for bacterial cellulose (BC) production and their chemical, physical, thermal and structural features were compared to BC from Hestrin–Schramm medium (HSBC) and plant cellulose (CP). Except for pomegranate peel hydrolysate, all the fruit and vegetable peel hydrolysates supplied to K. hansenii GA2016 supported the BC production. Among the fruit and vegetable peel hydrolysates, the highest BC production was observed in kiwifruit peel hydrolysate (11.53%), while the lowest production was observed in apple peel hydrolysate (1.54%). Water-holding capacities of the BCs were ranged from 627.50% to 928.79% and higher than HSBC (609.30%), average fiber diameters were ranged from 47.64 nm to 61.11 nm and thinner than HSBC (74.29) and CP (10,420 nm), crystallinities were ranged from 80.27% to 92.96%, thermal capacities BCs were higher than HSBC and CP. For the BC productions, utilization of the fruit and vegetable peels as the sole nutrient source could reduce the production costs and among the polysaccharides, increase the use of BC in industry.
- MakaleAçık Erişim2020Effect of cellulose nanofiber-based coating with chitosan and trans-cinnamaldehyde on the microbiological safety and quality of cantaloupe rind and fresh-cut pulp. Part 1: Microbial safety
Zhang, Jin; Ozturk, Samet; Singh, Rakesh K.; Kong, Fanbin
This study aimed to evaluate the effect of cellulose nanofiber (CNF)-based coating containing chitosan (CHI) and trans-cinnamaldehyde (TC) on microbial growth of foodborne pathogens and spoilage microorganisms on cantaloupe rind and fresh-cut pulp. Coated/uncoated cantaloupe rind and pulp samples were inoculated with Salmonella enterica, Escherichia coli O157:H7 and Listeria monocytogenes and subsequently subjected to storage for 20 d at 4 °C or 12 d at 22 °C. Results showed that coating with only CNF (0.5%, dry-base) was effective in the elimination of S. enterica and E. coli O157:H7. Adding CHI (1%, w/w) and TC (1%, w/w) into CNF-based coating enhanced film formation on the surface and increased the antimicrobial activity on rind sample, but the reduction effect was less significant on pulp samples. The CNF (0.5%, dry-base) +CHI (1%, w/w) +TC (1%, w/w) coating resulted in 2.23, 2.43 and 3.22 log10 CFU/cm3 reduction of S. enterica, E. coli O157:H7 and L. monocytogenes, respectively, on pulp samples after 20 d at 4 °C. The formulation also significantly inhibited the growth of natural spoilage microorganisms, and no growth was observed up to 18 d at 4 °C. Results indicated that CNF-based coating significantly improved microbial safety of cantaloupe rind and fresh-cut pulp during storage by forming a physical barrier reducing activities of oxygen-dependent microorganisms.
- MakaleAçık Erişim2020The impact of dietary tarragon (Artemisia dracunculus) on serum apelin, brain-derived neurotrophic factor, cardiac troponin concentrations and histopathology of liver tissue in laying hens housed at different stocking densities
Bayraktar, Bulent; Tekce, Emre; Kaya, Hacer; Karaalp, Musa; Turunc, Eylul
Due to its association with several other stress factors (poultry house gases, inadequate ventilation, heat, cold and poor hygiene), the high stocking density is a major stress factor that adversely affects the health and performance of poultry and the quality of the poultry products. Therefore, this experimental study was aimed at analysing the impact of different doses of dietary tarragon (Artemisia dracunculus) on the serum apelin, plasma brain-derived neurotrophic factor (p-BDNF), and cardiac troponin I (cTnI) concentrations, and the correlation between these indicators in laying hens housed at different stocking densities. The aim of this study is to investigate the effects of adding tarragon in different ratios to laying hen rations in the 2ndovulation period on the cTnI, apelin, and BDNF hormone concentrations and the liver histopathology. The experiment was carried out over a period of eight weeks, with 192 Lohman Brown commercial hybrids at 50 weeks of age. Eight groups (four replicates each), composed of laying hens of equal body weight, which were housed at stocking densities of 580 cm2/hen and 810 cm2/hen and received 0, 1, 5 and 10 mmol/kg of tarragon (Artemisia dracunculus) in the feed, were established. At the end of the trial, 96 of the housed egg-laying hens (3 birds in each subgroup, a total of 12 birds in each group) were randomly selected and blood samples were taken from the vena subcutanea ulnaris. The samples collected were analysed for the apelin, p-BDNF, and cTnI contents. The analysis results demonstrated that tarragon supplementation had no effect on the serum apelin, p-BDNF and cTnI concentrations (P > 0.05). The Sub-Groups ST1, ST1.2, and ST6 presented with severe hyperaemia of the sinusoidal, portal and acinar blood vessels, whilst the hyperaemia of these blood vessels was moderate in Sub-Group ST12. Apelin, BDNF, and cTnI can act as protective factors against negative consequences of stress (e.g., stocking density or heat stress).
- MakaleAçık Erişim2020Effect of cereals milling on the contents of phytic acid and digestibility of minerals and protein
Ertop, Muge Hendek; Bektas, Muberra; Atasoy, Rabia
Introduction. The aim of the study was to the examination of effects of the milling process which were applied differently to cereals for commercially flour production, on the phytic acid, microelement, and in-vitro digestibility. Materials and methods. The nutritional consequences of the milling processes of the cereals (wheat, barley, rye, oat, paddy) were evaluated by examining protein, ash, phytic acid, mineral contents, and protein/mineral digestibility rates. Mineral contents were measured by inductively coupled plasma optical emission spectroscopy (ICP-OES), protein content by Kjeldahl method, and mineral digestibility and phytic acid were determined by in-vitro assays. Results and discussion. The dehulling/debranning process increased the protein digestibility rate over to 65% and decreased phytic acid content significantly (p0.05) of the cereal grains except for rye. The mineral digestibility raised for all grain samples, but it was evaluated statistically insignificant (p0.05). The rice flour was the sample that had the lowest phytic acid content (921.87 mg/100g) and the highest mineral digestibility rate (58.35%). Although the contents of total ash and some of the minerals (Na, Ca, K, Mg, Zn, Fe, Ba, and P) decreased in flours especially in wheat and paddy, the rate of some minerals (Na, Mg, Zn, Fe, and Al) increased due to their distribution and localization in the grain layers, especially in rye and oat. The result of the study has shown that the level of the minerals changed depending on the bran/hull content of the grains, and the milling process was more effective on phytic acid content and on protein digestibility than on the mineral digestibility. While the phytic acid content was located on the outer layer of the grain, it was decreased in the kernel. Conclusions. Although the phytic acid content which affects the digestibility of the cereals were reduced by the milling process, the combination of different treatments such as soaking, fermentation could be suggested for improving the nutritional quality of the cereal.
- MakaleYalnız künye2020Phytochemical profile and biological activity of a therapeutic orchid from Anatolia: Dactylorhiza romana subsp. georgica
Kotiloğlu, Deniz; Acet, Tuba; Özcan, Kadriye
In Anatolia, the tubers of Dactylorhiza romana subsp. georgica orchid are consumed as food and frequently used in folk medicine to alleviate the symptoms of some disorders. However, these properties have not been scientifically studied until the present day. In this research, we aimed to identify phenolic profile of the orchid tubers and determine their several features and functions. Among these, there are the antioxidant and antimicrobial effects and the inhibitory effect against diabetes related enzymes (α-amylase and α-glucosidase). In this sense, total phenolic content (Folin–Cicalteu assay), total antioxidant capacity (Phosphomolybdate method), antioxidant (ABTS and DPPH assays) and enzyme inhibition effects of tuber extracts obtained with different solvents (chloroform, ethyl acetate, methanol, ethanol, or hexane) were determined by using spectrophotometric methods, and the phenolic profile was also analysed by HPLC. In addition, antimicrobial activity of the extracts against 3 g (+) and 3 g (−) bacteria and 2 forms of yeasts was determined by disc diffusion and micro dilution methods. Based on our findings, the total phenolic content and antioxidant properties of ethyl acetate extract were considerably higher than the others. The most abundant among the screened phenolic standards was found to be benzoic acid. The highest α-amylase and α-glucosidase enzyme inhibition was measured in methanol and chloroform extracts, respectively. The highest antibacterial (B. cereus) and anticandidal (C. tropicalis and C. albicans) activities were detected in the chloroform and ethyl acetate extracts, respectively. In short, it was clearly seen that the D. romana subsp. georgica tuber had a great potential for being used in food and drug industries as a source of bioactive compounds.
- MakaleYalnız künye2020Food label reading habits of health sciences students
Odaman, Tayyibe Ayşe; Bahar, Rabia; Şam, Sedanur; Ilyasoğlu, Huri
Purpose: The purpose of this study is to determine the food label reading habits of health sciences students. Design/methodology/approach: The data were collected through a face-to-face survey with voluntary students (n: 520). The survey questionnaire consisted of three parts to gather information about their demographic and anthropometric characteristics and food label reading habits. Chi-squared test and Pearson correlation analysis were used to analyze the data. Findings: The health sciences students mostly read the food name, expiration date and ingredients on the food labels. However, they paid less attention to the nutrient contents, such as the fat type and carbohydrate, cholesterol, sugar, fiber and salt amounts. The female students paid more attention to the nutrient contents than the male students. Moreover, the Nutrition and Dietetics students paid more attention to the nutrient contents than the other students. Significant negative correlations were found between the carbohydrate, protein and fat amount reading habits and both the body mass index (p = 0.005, p = 0.001 and p < 0.001) and waist to height ratio (p = 0.040, p = 0.005 and p = 0.022). Research limitations/implications: This study does not allow one to draw conclusions for all university students. Originality/value: This study is first such study performed among health sciences students in Turkey.
- MakaleAçık Erişim2020Determination of physicochemical and microbiological properties and fatty acid composition of butter produced in Trabzon, Turkey
Akgül, Halil İbrahim; Şengül, Mustafa; Ürkek, Bayram; Kotan, Tuba Erkaya
In this study, the some physicochemical properties, fatty acid compositions and microbiological properties of butter samples were studied. Butter samples (n = 30) were randomly collected from different local markets. Thus, butter samples were evaluated in terms of Turkish regulations, food safety and quality. The mean values of the butter samples for peroxide value (PV), iodine value (IV), saponification value (SV), Polenske value, Reichert-Meissl (RM) and Refractive index (RI) values were determined as 0.85 mEqO2 kg-1, 30.03, 220.09, 1.30, 25.60 and 1.4611, respectively. The moisture and fat values were not in harmony with Turkish Food Codex Butter, Other Milk Fat Based Spreadable Products and Anhydrous Milkfat Notification (the highest moisture content 16%, the lowest fat content 80%) in 23 and 13 butter samples, respectively. The salt values were coherent with Turkish Food Codex in all butter samples. Conjugated linoleic acid (CLA) rate of the butter samples was ranged from 0.15 to 1.32%. The average values of coliforms, total aerobic mesophilic bacteria (TAMB) and mould and yeasts counts were determined as 1.67, 6.33 and 5.22 log CFU g-1, respectively.
