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Effect of Walnut (Juglans regia L.) on the Physicochemical, Sensory, Phenolic and Antioxidant Properties of Set Type Yogurts during Storage Time
2022
Özge Duygu Okur
This study aims to reveal the quality properties of yogurt enriched with walnut during cold storage (4°C) for 28 days. Five sets of yogurt types were produced by using walnut at varying rates (A: 0% (control), B: 1%, C: 2.5%, D: 3.5%, E: 5%). Physicochemical, sensory, phenolic contents and antioxidant properties of yogurt samples was investigated during the 1st, 7th, 14th, and 28th days of storage. The study was conducted to optimize the walnut addition level to obtain better quality yogurt as a functional food. It was determined that the walnut enrichment affects the gross chemical component of yogurt samples. Yogurt sample with %5 walnuts (E) had the highest total phenolic and antioxidant activity content (respectively 1027.50 mg GAE/kg, 19.95 mM TE) among the samples. The yogurt sample with the highest sensory attribute score was the one containing 1% walnuts. Therefore, it was concluded that yogurt added with walnut could serve as functional yogurt beneficial for human health.
Mostrar más [+] Menos [-]The Effect of Hatching System and Egg Weight on Production Traits in Turkish Geese: Growth Performance, Slaughter and Meat Quality Traits
2022
Mehmet Akif Boz | Ahmet Uçar | Kadir Erensoy | Musa Sarıca
This study was aimed to determine the effect of hatching system (house and machine) and egg weight (heavy and light) on growth performance and meat quality traits in geese. The study was carried out for 12 weeks with a total of 220 Turkish native geese. The geese were individually weighed every 2 weeks during the study, on these same weeks feed conversion ratio (FCR) was measured. Hot and cold dressed, blood, head, foot, edible internal organs (heart, liver, gizzard), abdominal fat, neck, back, breast, thigh and wing percentages were determined. Also cooking loss, drip loss, color and pH were determined as meat quality traits. There was no significant difference between the egg weight groups in terms of BW. However, the geese produced in the house hatching system showed more BW from 6 to 12 weeks of age onwards compared to the machine system. There was no significant difference between the groups in terms of FCR by 8 weeks. Both 10 and 12 weeks FCR were determined as the worst house heavy, while the best house light groups. Hot and cold carcass percentages in geese hatched from heavy were higher rates than light eggs. The percentage of wings differed significantly among geese produced from different egg weight groups. Breast meat cooking loss was found higher rates in heavy eggs than light eggs, while thigh meat cooking loss was found higher rates in the house than machine system. The results of this study show that geese hatched in the house system had more BW at the slaughter age compared to machine system geese. In addition, geese produced from heavy eggs showed a higher hot and cold dressed percentages than geese produced from light eggs.
Mostrar más [+] Menos [-]Erzincan Altınada Sulama Şebekesinin Performansının Değerlendirilmesi
2022
Cahide Sude Taş | Fatih Mehmet Kızıloğlu
Bu çalışma; Erzincan Altınada Sulama Birliği şebekesinin 2014-2018 yıllarındaki performansının izlenip değerlendirilmesi amacıyla yürütülmüştür. Çalışmada daha önceki çalışmalarda kullanılan ve önerilen performans ölçüm parametreleri kullanılmıştır. Bu parametreler; şebekedeki sulama alanı oranları ile bu alanlar için gerekli net ve toplam su sağlanma oranları, üretim değeri oranı ile bunun mali getirisi, şebekenin mali yeterlilik ve mali etkinlik oranları, su ücretlerinin tahsilat oranı, sürdürülebilir sulama alanı oranı ile karlılık oranlarıdır. Sulu tarıma açılmış toplam alan 3600 hektar iken araştırma yıllarında 2254,93 ha ile 2751,56 ha arasında değişen alanlarda bitkisel üretim yapıldığı belirlenmiştir. Araştırma yıllarında sürdürülebilir sulama alanı oranları %130,83ile %159,65 arasında iken sulama alanı oranları değerleri %62,64 ile %76,43 arasında kalmıştır. Şebekede aylık net su temin oranlarının 0,78 ile 3,44 arasında iken toplam su temin oranlarının 1,53 ile 6,70 arasında değiştiği, yani çiftçinin aşırı su kullanma eğiliminin olduğu belirlenmiştir. Altınada sulama birliği sahasında üretim değeri oranı %33,05 ile %44,79; karlılık oranı ise 0,95 ile 2,59 arasındadır. Mali etkinlik oranı %22,70 ile %53,30 mali yeterlilik oranı %45,24 ile %101,64, yıllık tahsilât oranı %13,0 ile %96,0, toplam tahsilat oranı da %89 ile %169 arasında gerçekleşmiştir. Ekonomik parametreler bakımından planlama beklentilerine yaklaşılamadığı belirlenmiştir. Şebekede gerçekleşen üretimin planlama öngörülerine yaklaşabilmesi için sulama alanı oranının artırılması, mali getirileri yüksek olan üretim deseninin seçilmesi ve mali kaynakların daha etkin kullanılması gerektiği sonucuna ulaşılmıştır.
Mostrar más [+] Menos [-]Determination of the Antimethanogenic Properties of Sumac Leaves (Rhus coriaria L.) Subsitution at Different Ratios İnstead of Corn Silage in Sheep Rations by in Vitro Gas Production Method
2022
Ali Kaya | Atilla Başer | Adem Kaya | Bilal Selçuk | Tuğba Cengiz
This study was carried out to determine the effects of different doses (10, 20 and 30%) of sumac shrub leaf substitution instead of corn silage in sheep rations on in vitro gas and methane production, metabolic energy (ME), net energy lactation (NEL) and organic matter digestion degree. Sheep ration consisting of corn silage (20%), alfalfa straw (22.5%), dry meadow grass (20%), and commercial feed (37.5%) constituted the control group. The experimental groups were formed by substituting 10 (S1), 20 (S2) and 30 (S3) percent sumac shrub leaves for corn silage in the control (C) group formed the experimental groups. The effect of sumac shrub leaf substitution on in vitro gas and methane production, metabolic energy, net energy lactation, and organic matter digestion degree was found to be significant. The 24-hour in vitro gas production values of rations ranged between 43.11- 46.77 ml/200 mg DM, methane production values 6.8-7.48 ml, metabolic energy values 8.91-9.41 MJ/kg DM, net energy lactation, 5.59-5.95 MJ/kg DM and organic matter digestion degree values found between 64.25 and 67.61%. As a result, it was determined that increasing doses of sumac shrub leaf substitute reduced gas and methane production. In addition, it was concluded that the data obtained should be supported by determining the microorganism counts, feed consumption amounts, and feed efficiency coefficients with in vivo studies.
Mostrar más [+] Menos [-]Molecular Investigation and Phylogenetic Analysis of Ehrlichia canis in Dogs in Siirt, Turkey
2022
Burçak Aslan Çelik | Özgür Yaşar Çelik | Ali Bilgin Yılmaz | Adnan Ayan | Özlem Orunç Kılınç | Ramazan Özdemir | Özge Oktay Ayan
Ehrlichia canis is the primary etiologic agent of canine monocytic ehrlichiosis, a tick-transmitted disease of dogs. The aim of this study is to molecularly investigate the presence of E. canis and to reveal its prevalence in dogs in Siirt province. The animal material of the study is consisted of a total of 82 dogs. A region of the 16S ribosomal RNA gene of E. canis was targeted for PCR amplification. As a result of the conducted Nested-PCR, positivity was detected at the rate of 10.53% (4/38) in male dogs and 13.64% (6/44) in females, and Ehrlichia canis specific bands of size 389 bp were obtained in 10 (12.20%) dogs in total. The phylogenetic tree was constructed with the Maximum Likelihood (MCL) method, The nucleotide sequence was registered in the NCBI GenBank database with access numbers OK331365.1-OK331366. Early detection of the disease by means of hematological, serological, or molecular tests is very important in terms of prognosis. More studies should be performed to determine vector-disease relationships in this region about ticks that vector the disease.
Mostrar más [+] Menos [-]Lebanese Consumer Perception towards Moringa Oleifera : Sensory Evaluation of Moringa Oleifera Fortified Labneh
2022
Sanaa Khaled | Hiba Al Wardany | Ward Al Bast
Labneh is one of the most consumed dairy products in the Lebanese community, on breakfast, as a snack or on dinner, plane or mixed with herbs. Its various health benefits plus its acceptability among people makes it an important part of the Lebanese diet. In both its synthetic and homemade forms, several additives are usually incorporated to enhance its flavor and offer a variety of tastes. The problem with Labneh is its short shelf life, as well as its sensitive sensory profile. That is why most industries mix chemical additives with Labneh to prolong its shelf life and conserve its taste. The aim of this research is to preserve Labneh naturally by adding Moringa Oleifera dried leaves to extend its shelf life and inhibit rapid spoilage. Working on a natural preservation of Labneh instead of chemical preservation will be assessed by the survey’s results and prepare for studying the overall acceptability of the product by making a sensory analysis. The results of the questionnaire showed that the Lebanese community which is not totally aware of Moringa Oleifera benefits and availability, is willing to try fortified Labneh with Moringa as a new product with extended shelf life and more health benefits. The results of the sensory analysis showed that the sensory attributes of the samples with Moringa after 21 days of storage, where not significantly different than normal plane Labneh, which indicate that adding Moringa did not affect the sensory attributes of Labneh giving it more acceptability to consumers.
Mostrar más [+] Menos [-]Adoption Index of Recommended Onion Production Practices and Correlation of Multivariate Factors among Smallholder Farmers
2022
Sambo Mailumo | Godfrey Onuwa
Adoption of improved technologies and agricultural practices are prerequisites for increased farm productivity. Assessing the appropriateness of potential new technologies or practices increases the likelihood of adoption or modification to suit farmers’ needs; however, low farm output still persists among smallholders, attributable to several factors including poor and low adoption of modern production practices. This study therefore analyzed the index of adoption of recommended onion production practices (ROPPs) and correlation of multivariate factors among smallholder farmers in Dambatta, Kano State, Nigeria. A multistage sampling procedure was used in selecting 100 respondents for this study. Primary data collected via well-structured questionnaires were analyzed using Descriptive statistics, Adoption index and Multivariate Correlation techniques.The results revealed that the prevalent ROPPs adopted by the farmers include improved onion varieties (78%), plant spacing (69%), planting method (55%), weed management (50%) and fertilizer application (44%). Moreover, most (72%) of the farmers have low adoption index (≤0.33). Further, significant correlations between multivariate factors (farm output, adoption cost and adoption index) exists and the estimated correlation coefficients for rxz, ryz and rxy were -0.53, 0.71 and -0.82 respectively. Subsidizing cost of adoption of ROPPs, improving access to modern production practices/technologies, agricultural credit/farm capital, extension services, adequate labour supply and tenure policy modification are recommended to ameliorate adoption constraints.
Mostrar más [+] Menos [-]Effect of Pink Rock Rose Extract with or Without Ascorbic Acid and Sodium Ascorbate for the Preservation of Ready-to-Eat Frankfurter Type Sausages
2022
Ayça Gedikoğlu | Hale İnci Öztürk | Sencer Buzrul | Münevver Sökmen | Ezgi Aytaç
This study aimed to determine the effect of pink rock rose extract (PRR) with or without ascorbic acid and sodium ascorbate for improving the shelf life of sausages. Analyzed parameters were DPPH radical scavenging capacity of PRR extract; total aerobic count, thiobarbituric acid reactive substance, heme iron, pH, water activity, proximate composition, and color values of MAP packaged sausages for 12 weeks at 4 °C. Treatments: (1) Control (0.02% ascorbic acid and 0.05% sodium ascorbate – AA-SA), (2) electrostatic spray application of PRR extract (2%) – ES-PRR, (3) 0.02% AA and, 0.05% PRR extract, (4) 0.05% SA and 0.02% PRR, (5) 0.07% PRR extract. PRR extract had the half maximal inhibitory concentration (IC50) value of 13.04 ± 0.133 µg/mL. Sausages formulated with 0.07% PRR had the lowest microbial growth rate, followed by AA-PRR formulation. The AA-PRR treatment had the lowest TBARS values for most of the storage. This study reveals that PRR extract can be added as a natural antioxidant in sausages, and it could be used as a replacement or for the reduction of ascorbic acid and sodium ascorbate in sausage formulations.
Mostrar más [+] Menos [-]Physicochemical Investigation of Some Oil Emulsions Oxidized by UV-B Radiation
2022
Temel Kan Bakır | Hüseyin Kastrati
In this study, the effects of UV B (50 µW/cm2) radiation at 306 nm on oil-in-water emulsions (O/W) using canola oil, soybean oil and linoleic acid were investigated. The oxidation rates of emulsions incubated at pH 7.0 and 37°C in the presence and absence of Cu (II) ions were determined by using iron (III) thiocyanate and thiobarbituric acid methods for the determination of primary and secondary products, respectively. The UV B-induced oxidation rates followed the order LA / Cu (II) > LA > Canola Oil / Cu (II) > Canola Oil > Soybean Oil / Cu (II) > Soybean Oil for both crops. Simultaneously, structural studies were performed using gas chromatography mass spectrometry (GC-MS). It was found that 18-carbon polyunsaturated fatty acid (PUFA) and monounsaturated fatty acid (MUFA) contents have an important role in canola and soybean oil oxidation. The unsaturated fatty acid contents of small carbon numbers increased for each emulsion sample, while the oxidation of fatty acid changes did not follow a regular order.
Mostrar más [+] Menos [-]Studies of Phenolic Compounds Coupled to Minerals in Cocoa Beans of the “Mercedes” and “Forastero” Varieties from the Divo and Abengourou Regions (Côte d’Ivoire)
2022
Jean Constant Kouablan Karim | Suomion Justin Saki | Tehi Bernard Sea | Kouassi Aboutou Severin Kra | Guillaume Arthur Kouassi Loh Yoboue
The aim of this study is to contribute to the valorization of the cocoa bean varieties “Mercedes” and “Forastero” grown in Côte d’Ivoire. A comparative characterisation of phenolic compounds and minerals in the beans of the “Mercedes” and “Forastero” varieties from two major cocoa production areas of Côte d’Ivoire were determined. The phenolic compounds of cocoa beans were determined by high performance liquid chromatography (HPLC) and the minerals by atomic absorption spectrophotometer. The study showed that a significant difference at the 5% level was observed in the averages of minerals, cinnamic acid, protocatechic acid, quercetin, coumaric acid, rutin, ellagic acid, veratric acid, epicatechin, ferulic acid and naringenin. On the other hand, no significant difference at the 5% level was observed in the averages of arbutin, catechin, vanillic acid and caffeic acid in the bean kernels analysed in the Divo and Abengourou regions. The proportion of cinnamic acid is (6.18±0.63 mg/100g “Mercedes” Divo), that of ellagic acid is (18.48±0.44 mg/100g “Mercedes” Divo) and that of naringenin is (5.95±0.35 mg/100g “Mercedes” Divo). The amount of potassium is (7569.97±1.51 mg/kg “Forastero” of Abengourou) and that of iron is (179.9 ± 0.70 mg/Kg “Forastero” of Divo). The phenolic compounds and minerals in the cocoa bean samples analysed are highly correlated and rich in antioxidants. They would be beneficial for many biological functions. They can be recommended in pharmacology and cosmetics to fight against oxidative stress and cardiovascular diseases.
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