Affiner votre recherche
Résultats 811-820 de 5,301
Antioxidants and Mineral Contents of Chicory as Coffee Additive Texte intégral
2021
Uğur Başaran | Erdem Gülümser | Cennet Yaman | Medine Çopur Doğrusöz | Hanife Mut
In this study, roots of Turkish origin wild chicory (Cichorium intybus L.) genotypes were investigated for total flavonoid and phenolic contents, radical cation scavenging activity (ABTS), Free radical scavenging activity (DPPH), and radical, mineral content. These characteristics were also compared with other coffee varieties. The total flavonoid and phenolic contents ranged between 0.290-4.350 mg QE/g dry weight (DW) and 0.943-13.860 mg GAE/g DW. The DPPH was listed here from high to low value: raw coffee beans = roasted coffee beans > roasted fruits of turpentine tree > instant coffee = roots of chicory. The content of P, Ca, Mg, Zn, B, Cr, Co and Mo ranged between 0.71-2.78%, 0.25-0.46%, 7.29-20.66, 4.44-11.07, 0.40-1.67, 0.49-5.48 and 5.69-14.46 ppm, respectively. As a result, chicory roots exhibited low antioxidant activity, but higher mineral content compared to the other tested coffee varieties which indicates that chicory could be used a coffee additive.
Afficher plus [+] Moins [-]Does the Inclusion of Second Generation Genetically Modified Plants in Feeds have any effect on Animal Performance? Texte intégral
2021
Jacob Matovu
The need for studies on the nutritional value of plants depends on their composition. The first generation genetically modified Plants (GMPs) have the same composition as their near-isogenic lines. Therefore, they have the same nutritional value, and most of the animal feeding studies have found no significant differences in the production and health parameters of animals that consumed first-generation GMPs in comparison to non-GMPs. Due to the recent production of transgenic plants with specific nutritional properties (second generation GMPs), their use as feed for animals is viewed with skepticism in very many countries. In this critical review, it is concluded that most of these nutritionally improved plants have not shown adverse effects on the performance of various animals compared to their near-isogenic lines and can therefore be considered in the animal feed industry. However, most of the experiments were conducted on laboratory animals. There is a need to conduct them with animals that are mainly consumed by humans, such as ruminants. There is also a need to feed the whole plant to these animals and not just certain parts of the plant to get a clear picture of its overall safety. In addition, there is a need to determine a suitable long-term nutritional and toxicological approach assessment.
Afficher plus [+] Moins [-]Outbreak investigation of lumpy skin disease in dairy farms at Barishal, Bangladesh Texte intégral
2021
Md. Ibrahim Khalil | Mohammad Ferdous Rahman Sarker | F. M. Yasir Hasib | Sharmin Chowdhury
Lumpy skin disease is explained as a significant cattle disease affecting cattle of many parts of the world. An outbreak was experienced in different parts of Bangladesh including Barishal for the first time in the last quarter of 2019. This investigation was carried out to know the outbreak scenario of the disease in southern part of Bangladesh. A total of 726 cattle were included in this study covering 50 dairy farms of Barishal region from September 2019 to December 2019. Morbidity rate was found 21% (CI: 18-24%) and mortality was 1% (CI: 1-2%) in the outbreak area. Young animals (24%) and pregnant animals (70%) were significantly more susceptible compared to aged animals (17%) and non-pregnant animals (15%), respectively. Moreover, male and crossbred cattle were slightly more prone to the infection in comparison to their counterparts. About 45% of the affected animals showed nodular and remaining 55% had edematous lesions. Almost 90% of the affected animals were treated with NSAID followed by antibiotics, antihistaminic, steroid drugs and antiviral drugs where only 20% of the affected animals were treated by authorized veterinary personnel. This was the first epidemiological investigation in the mentioned outbreak area which may serve as a baseline for LSD research in the location needed for developing effective control strategy.
Afficher plus [+] Moins [-]Evaluation of Green Areas of Konya Selçuklu, Bosna-Hersek Neighborhood in Terms of Sufficiency, Management and Usage Texte intégral
2021
Serpil Önder | Ruhugul Ozge Gemici | Ahmet Tuğrul Polat
Green areas are spaces organized as areas where people can get rid of their monotonous lives and meet their active or passive recreation needs. In order for a society to be physically and mentally healthy, green spaces must fulfil the purposes of establishment. The main material of the research is the green areas of Bosna-Hersek neighbourhood. The questionnaire method was used in the study and the green areas in Konya province Selçuklu district Bosnia and Herzegovina neighbourhood were evaluated in terms of sufficiency, management and usage
Afficher plus [+] Moins [-]Influence of Different Pretreatments on Hot air and Microwave-Hot Air Combined Drying of White Sweet Cherry Texte intégral
2021
Meric Simsek | Özge Süfer
Microwave (MW)-hot air (HA) combined drying was applied to white sweet cherries besides solely HA drying at 50, 60 and 70°C in the presence of citric acid, sucrose and freezing pretreatment in this study. Single power level of MW (90 W) was chosen, and drying behavior of all samples was modelled by using eleven thin layer equations. Two-term, rational and sigmoid models were the most suitable models for describing drying phenomena. Effective moisture diffusivities (Deff) ranged from 1.724×10-10 to 5.173×10-10 m2/s in HA drying and from 4.260×10-10 to 1.805×10-9 m2/s in MW-HA drying. Activation energies (Ea) were between 2.785 and 30.541 kJ/mol and 6.929 and 42.101 kJ/mol for HA and MW-HA drying techniques, respectively. Total color change (ΔE) levels of the outer surface of dried cherries were generally higher than the ones of inner surface. Freezing pretreatment had a comparably lower enhancing effect on the total phenolic content (TPC) of HA dried white sweet cherries compared to fresh sample. The TPC of freezing pretreated and HA dried at 50°C and HA dried at 70°C control samples were 1.481 ± 0.398 mg gallic acid equivalent (GAE)/g dry matter (DM) and 6.181 ± 0.012 mg GAE/g DM as the minimum and maximum, respectively. These values were determined as 4.183 ± 1.728 and 8.240 ± 0.502 mg GAE/g DM that were belonged to MW-HA dried at 50°C control and freezing pretreated MW-HA dried at 70°C samples in combined procedure, respectively.
Afficher plus [+] Moins [-]Effect of Irrigation and Fertigation Levels on Cabbage (Brassicaceae Oleracea var. capitata L. Grandslam F1) Texte intégral
2021
Serhat Ayas
There are very few studies on cabbage at different fertigation levels in the Marmara Region, where this study was conducted. In this respect, our study has a unique quality. This study was carried out in Bursa Uludag University Yenisehir İbrahim Orhan College application greenhouses in 2014-2015 years. Five different irrigation treatments (T1: 100% (full irrigation), T2: 75%, T3: 50%, T4: 25%, T5: 0% (non-irrigated)) and two different fertigation treatments (F1.0: 100% (100:100:100 NPK fertigation and F0.5: 50% (50:50:50 NPK) fertigation) were combined together to determine the effects on yield and quality parameters of cabbages. The amount of irrigation water in 2014 and 2015 years varied between 0.0-620.0 mm and 0.0-660 mm, respectively, while evapotranspiration values varied between 150.0-700 mm and 180.0-710 mm, respectively. It was determined that irrigation water and fertigation levels, yield and quality parameters of cabbages were affected significantly. In both application years, the highest yield was obtained from T1F1.0 treatment as 73.2 and 68.4 tons ha-1 respectively, while the lowest yield was obtained from T5F1.0 treatment as 3.0 and 3.0 tons ha-1, respectively. In 2014 and 2015 years the crop response factor values of cabbage were calculated as 1.20-1.19 and 1.23-1.18, respectively. T2F1.0 and T2F0.5 treatments can be recommended as the most effective irrigation and fertilization levels of cabbage.
Afficher plus [+] Moins [-]Önemli Tıbbi Bitkilerden Biri Olan Achillea millefolium L. (Civanperçemi) Bitkisinin Besin Elementi Konsantrasyonları ve Antioksidan Aktivitesi Texte intégral
2021
Handan Saraç | Hasan Durukan | Ahmet Demirbaş
Bu çalışmada, tıbbi nitelik taşıdığı bilinen Achillea millefolium L. (Civanperçemi) bitkisinin besin elementi konsantrasyonlarının ve antioksidan aktivitesinin belirlenmesi amaçlanmıştır. Bu amaçla; Sivas ili Divriği ilçesinden toplandığı bilinen Civanperçemi bitkisinin makro ve mikro besin elementi konsantrasyonları ile su ekstresinin toplam antioksidan seviyesi (TAS), toplam oksidan seviyesi (TOS) ve oksidatif stres indeksi (OSI) değerleri belirlenmiştir. Çalışmadan elde edilen sonuçlara göre; Civanperçemi bitkisinin bazı makro ve mikro besin elementi konsantrasyonları bakımından yeter düzeyde olduğu, makro elementlerden azot (N), fosfor (P), potasyum (K), kalsiyum (Ca) ve magnezyum, mikro elementlerden demir (Fe), çinko (Zn), mangan (Mn) ve bakır (Cu) konsantrasyonlarının sırasıyla %1,01 N, %0,63 P, %2,43 K, %2,22 Ca, %0,70 Mg, 360,4 mg/kg Fe, 47,6 mg/kg Zn, 85,5 mg/kg Mn ve 28,3 mg/kg Cu olduğu tespit edilmiştir. Antioksidan potansiyelinin ise orta düzeyde olduğu belirlenmiştir. Ayrıca, bitkinin oksidan kapasitesi ve oksidatif stres indeksi düşük olarak tespit edilmiştir.
Afficher plus [+] Moins [-]Determination of Heavy Metals in Locally Available Chocolates in Lahore Region Texte intégral
2021
Muhammad Amjad | Shabbir Hussain | Zia Ur Rehman Baloch | Aoun Raza
Heavy metal toxicity can either be acute or chronic effects. Long-term exposure of the body to heavy metal can progressively lead to muscular, physical and neurological degenerative process. In this research, a total of 30 representative chocolate samples were collected from local shops and markets in Lahore. All the samples were analysed to assess the levels of Lead (Pb), Nickel (Ni), Chromium (Cr) and Cadmium (Cd) by using Atomic Absorption Spectrophotometer in Pakistan Council of Scientific and Industrial Research (PCSIR), Lahore. It was observed that the majority of chocolate samples contain heavy metals levels higher than the permissible limits as recommended by Punjab Food Rules (PFR) 2011. The levels of Pb ranged between 0.375 and 3.4 mg/kg with 90% samples having concentrations exceeding PFR allowable limit (0.5 mg/kg). Whereas, Ni concentrations varied from 0.005 to 0.28 mg/kg and 80% samples were above the PFR limit (0.025 mg/kg). Further, Cr levels analysed between 0.005 to 0.28 mg/kg and 53% samples had Cr concentrations higher than PFR limit (0.02 mg/kg). Similarly, Cd levels were observed between 0.50-3.25 mg/kg with 53% samples having Cd concentrations exceeding the PFR limit (1.0 mg/kg). Investigation indicates that the quality of available chocolates is not recommendable for eating because of the higher concentrations of toxic heavy metals.
Afficher plus [+] Moins [-]Adoption of Improved Maize Varieties as a Sustainable Agricultural Intensification in Eastern Ethiopia: Implications for Food and Nutrition Security Texte intégral
2021
Mengistu Ketema | Kibebew Kibret | Feyisa Hundessa | Tewodros Bezu
This paper examines factors determining farmers’ adoption decision for improved maize varieties in the maize-common bean intercropping practices in two districts of East Hararghe zone, Eastern Ethiopia. It is based on data collected from 129 farm households using structured questionnaire. Descriptive results revealed that adopters of improved maize varieties had better food and nutrition security status. Furthermore, logit model output indicated that the decision to adopt improved maize varieties is influenced by location (district) dummy, education status of the household head, age of the household head, distance from the main road, and the number of plots owned. Major recommendations include improving the rural road infrastructure, educating and training farmers, organizing experience sharing events among farmers, and raising awareness about the food and nutrition security benefits of sustainable agricultural intensification practices like intercropping improved maize with improved common bean varieties.
Afficher plus [+] Moins [-]Economic Efficiency of Wheat Producers: The Case of Debra Libanos District, Oromia, Ethiopia Texte intégral
2021
Kebebew Hundie Bezu | Badassa Wolteji Chala | Milkessa Wakjira Itticha
Ethiopia has enormous potential for wheat production, yet it remains a net wheat importer. This paper aims to examine the efficiency of wheat production in Debra Libanos district, Ethiopia. Two stages sampling technique was used to randomly select 150 farmers for the study. A stochastic production frontier and two-limit Tobit estimator was utilized in the study. The study reveals that technical (78.5 %,), allocative (85.6%), and economic (66.7%) efficiencies. The yield gap was 5.13 quintal/ hectare showing a room to increase efficiencies. The study identified the determinants of wheat production efficiency in the area. Hence, to improve wheat production efficiencies strengthen extension services, improved technology utilization, and proper land ploughing. Besides, natural resource conservations that improve soil fertility should be the focus of the policymakers.
Afficher plus [+] Moins [-]