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Evaluation of Texture Profile, Color and Determination of FOS in Yacón Products (Smallanthus sonchifolius) Texte intégral
2016
Valeria Cristina Del Castillo | María Cristina Goldner | Margarita Armada
Textural characteristics, color and fructooligosaccharides (FOS) content, in yacón root products (syrup and dried snack subjected to different pretreatments with NaCl, blanching and ascorbic acid) were evaluated. Yacón from Salta Capital, with 8 months of growth were used. Texture profiles and Color were evaluated instrumentally and FOS content by HPLC. There were significant differences between the samples treated with NaCl and the ones treated by blanching and ascorbic acid for fracture strength, fracture number and hardness according to pretreatment used, and for hardness and tackiness by the drying time. Regarding to color: longer drying time reduces sample brightness. In processed products the FOS content is lower than in fresh yacón, but higher in sucrose, glucose and fructose.
Afficher plus [+] Moins [-]Occurrence of Foodborne Pathogens and Molds in Turkish Foods Texte intégral
2016
Sebnem Ozturkogu-Budak
A survey of the occurrence of food pathogens like Salmonella, Listeria, Escherichia, Clostridium, Bacillus and Staphylococcus analyses were performed on 301 food samples from 8 different food categories such as dry legumes, milk products, meat products, fish, frozen foods, deserts, nuts and vegetables and fruits. Yeast and mold analyses were also performed on 364 food products from 9 main food categories such as dry legumes, milk products, meat products, seasonings, deserts, nuts, bee products, bakery products and dried fruits produced in Turkey. S. aureus and Salmonella were the most prevalent (1.33%) of the six isolated pathogens. The species Cl. perfringens, L. monocytogenes and B. cereus were detected with the ratios of 1.00%, 0.66% and 0.66%, respectively. Total yeast and molds occurrence were 1.65% and 9.06%, respectively. Pathogens were detected in cream cheese, spinach, strawberry and cod fish most prevalently, whereas dried fig, chilli pepper, hazelnut and bakery products were determined as foods prone to the growth of molds. The results of this study suggest that faecal contamination of water needs to be prevented, and the production and storage conditions of food materials should be improved. These findings have implications for the use of these surveillance data in developing evidence-based food policy.
Afficher plus [+] Moins [-]Effect of Plant Growth Regulators on Fruit-set and Quality of Guava Texte intégral
2016
Shreef Mahmood | Md. Nazmul Hasan | S.M. Younus Ali | Rafija Alam Ripa | Md. Golap Hossain
Two plant growth regulators: β-NOA (50 and 80 ppm) and GA (200 and 250 ppm) were applied to emasculated flowers at anthesis to set parthenocarpic fruit, while in the control treatment fruit set was achieved by natural pollination. The application of β-NOA found ineffective in setting parthenocarpic guava. No significant differences were observed in the length and diameter of fruit between parthenocarpic and naturally pollinated seeded fruit at different days after anthesis. The mean fruit weight, TSS and ascorbic acid content of parthenocarpic fruit were similar to that of seeded fruit. Significant higher amount of total polyphenol was detected in the seeded fruit than the parthenocarpic fruit. Although 200 ppm GA showed comparatively better response to fruit growth, TSS and ascorbic acid content than 250 ppm GA but not in a statistical level.
Afficher plus [+] Moins [-]Influences of Rosemary Essential Oil on Some Blood Parameters and Small Instentine Microflora Laying Hens Texte intégral
2016
Tülay Çimrin | Murat Demirel
This experiment was designed to investigate the effects of antibiotic, vitamin E and rosemary essential oils in various doses on some blood parameters, beneficial and harmful microorganisms in instentine jejunum microflora of lying hens. The experiment was conducted according to random parcel experiment design. A total of 240 Bovans genotype and 32 weeks aged were equally divided into 6 groups (8 hens in each group with 5 replicates). While the control group was fed with basal diet the treatment groups were supplemented with 500 mg/kg antibiotics; 200 mg/kg vitamin E; 100, 200, and 300 mg/kg REO to basal diet for 90 consecutive days. The result showed that there were no effects of all additions to basal diets on examined blood parameters. Antibiotic and all rosemary essential oils doses to basal diet affected the instentine jejunum bacteria content by decreasing probable coliforms, faecal coliforms, Escherichia coli (E. coli) and Clostridium perfringens (Cl. perfringens) bacteria level significantly. While a 100 mg/kg rosemary essential oils dose was of the same influence with antibiotic (500 mg/kg) on all bacteria species, 200 and 300 mg/kg doses applications were more effective on E. coli compare to antibiotics. 300 mg/kg doses applications dose was more effective on probable faecal coliforms than antibiotics. As conclusion, the results shows the rosemary essential oils has the high antimicrobial effect on some pathogenic bacterias and could be used in laying hen for feed addition.
Afficher plus [+] Moins [-]Agricultural Geography Analysis of Carob Tree (Ceratonia siliqua L.) from Turkey Texte intégral
2016
Güven Şahin | Nuran Taşlıgil
Carob tree (Ceratonia siliqua L.) is one of the oldest trees in the world and has been cultivated from civilization of Ancient Persia, especially on the Mediterranean coasts, till nowadays. The fruit of the carob tree (carob bean) are attracting attention in recent years due among others to tits rich nutritional value and use as a substitute and/or alternative for cocoa. Although it has higher sugar content than sugar beet and sugar cane, it is a food that also lowers cholesterol. In addition to its fruit, the plant has interesting morphological qualities. Deep root system of carob tree allows high productivity even in draught conditions; it is an ideal plant in the fight against erosion and one of the most preferred plants while establishing fire-resistant forests. Additionally, because 2016 was declared the International Year of Pulses, it is necessary to draw attention to the carob tree since it is a typical pulse plant. The status of Turkey, as the 5th carob producer in the world, was analysed in this context, in terms of Agricultural Geography. The existing and necessary practices in carob production are discussed based on the data from the studies conducted in Antalya and Mersin in 2015 and previous ones.
Afficher plus [+] Moins [-]Effects of Whole Wheat Scattered the Litter on Performance, Carcass Characteristics, Excreta pH and Viscosity in Broilers Texte intégral
2016
Figen Kırkpınar | Zümrüt Açıkgöz | Özer Hakan Bayraktar | Özge Altan
The aim of this study was investigate the effects of whole wheat scattered the litter on performance, carcass characteristics and viscosity and pH of excreta in male broilers. A total 336 male chicks (Ross-308) were randomly distributed into two dietary treatments of four replicates each. Same starter (0 to 21 d) and finisher diets (22 to 45 d) were used in both groups. All birds were given ad libitum access to feed and water throughout experimental period. From 8 to 21 days, whole wheat (10 g/bird/day) was randomly thrown on the litter in one of the experimental groups twice a day (at 0800 and 1200 h). Scattering whole wheat in the litter decreased body weight of male broilers at 21 d of age while increased at 45 d of age. Feed intake was not affected by whole wheat scatter treatment. From 22 to 45 and 0 to 45 d of age, feed conversion ratio significantly improved in group scattered whole wheat in the litter than control group. No significant differences were occurred among groups for mortality, carcass characteristics and excreta viscosity. However, pH value of excreta in group scattered whole wheat the litter showed significant reduction as compared control group. According to these results, scattering whole wheat the litter at an early stage affected the performance of male broilers positively.
Afficher plus [+] Moins [-]Stability Analysis for Seed Yield over Environments in Coriander Texte intégral
2016
Sangeeta Yadav | Arun Kumar Barholia
Thirty five genotypes of coriander (Coriandrum sativum L.) were tested in four artificially created environments to judge their stability in performance of seed yield. The differences among genotypes and environments were significant for seed yield. Stability parameters varied considerably among the tested genotypes in all the methods used. The variation in result in different methods was due to non-fulfillment of assumption of different models. However, AMMI analysis provides the information on main effects as well as interaction effects and depiction of PCA score gives better understanding of the pattern of genotype – environment interaction. The sum of squares due to PCAs was also used for the computation of AMMI stability values for better understanding of the adaptability behavior of genotypes hence, additive main effects and multiplicative interaction (AMMI) model was most appropriate for the analysis of G x E interactions for seed yield in coriander. Genotypes RVC 15, RVC 19, RVC 22, RVC 25 and Panipat local showed wider adaptability while, Simpo S 33 exhibited specific adaptability to favourable conditions of high fertility. These genotypes could be utilized in breeding programmers to transfer the adaptability genes into high yielding genetic back ground of coriander.
Afficher plus [+] Moins [-]Determination of Egg Shell Quality with P Control Charts in Poultry Texte intégral
2016
Melis Çelik Güney | Gökhan Tamer Kayaalp
Broken or cracked eggs are important factor in determining the quality of the egg shell. Manufacturers are experience great losses because broken or cracked eggs aren’t evaluated. The manufacturers need control charts throughout the production to determine whether process is under control. In this study, broken and cracked eggs which are taken Cukurova University, Faculty of Agriculture, Department of Animal Science, Poultry Businesses during 52 weeks are determined. P control charts of the data’s are taken in poultry business during 52 weeks is drawn due to determining whether there is under the control. Three methods were used for drawing control charts. In the end of this study, it has been determined to be not under control of the process.
Afficher plus [+] Moins [-]Growth, Yield and Nutrient Uptake Capacity of Rice under Different Sulphur Levels Texte intégral
2016
A. K. M. Sajjadul Islam | Md. Shohel Rana | Dr. Md. Mazibur Rahman | Md. Jainul Abedin Mian | Md. Mezanur Rahman | Md. Asif Rahman | Nazmun Naher
Because of using sulphur free fertilizer, rice crop facing tremendous sulphur (S) deficiency throughout the world as well as in Bangladesh. However, farmers of Bangladesh often overlook the importance of sulphur fertilization on rice yield. Therefore, the present study was conducted to investigate the influence of different levels of sulphur on growth, yield attributes and uptake of N, P, K and S by grain and straw of BRRI dhan41 rice variety. The experiment was laid out in randomized complete block design with three replication and eight treatments including control. The result of the study revealed that the highest plant height, panicle length, filled grain was found in T1 (50% RFD of S) treatment, while the utmost number of effective tiller and straw yield was recorded in T5 (150% RFD of S) treatment. Interestingly, maximum grain yield as well as uptake of N, P, K and S by grain and straw was significantly higher in T6 (175% RFD of S) treatment. The highest grain yield of T6 treatment might be due to maximum nutrient use efficiency. However, in all cases control treatment (T0) gave the worst result. The present study clearly indicates that higher rates (175% of the recommended dose) of S along with other fertilizers may be recommended for better growth and yield of BRRI dhan41 in Bangladesh soil.
Afficher plus [+] Moins [-]The Applications to Increase Drought Tolerance of Plants Texte intégral
2016
İlkay Yavaş | Hüseyin Nail | Aydın Ünay
Terminal drought is a major threat that adversely affects crop growth and metabolism, and limits the yield. Water stress causes many morphological, physiological and biochemical changes in plants. Plant height, root length, leaf area, fresh and dry biomass are reduced under drought stress. Besides, water stress causes the reduction of relative water content, the closure of stomata and decrease in photosynthesis and chlorophyll content. Antioxidant enzymes such as glutathione reductase (GR), superoxide dismutase (SOD), peroxidase (POD), ascorbat peroxidase (ASC), glutatiton (GSH), catalase (CAT) enzyme activities, the indicator of oxidative stress malondialdehyde (MDA) and proline levels also changes in drought conditions. Nutrient uptake by plants is prevented or restricted before grain development stage during drought conditions. Therefore the application of plant nutrients followed by micronutrient remobilization within plant is great importance. Osmoprotectants (cytokinin, mannitol, abscisic acid, proline, glycine betaine, polyamine etc.) detoxify adverse effect of reactive oxygen species (ROS) and alleviate drought stress. Exogenous plant growth promoting rhizobacteria (PGPR) application encourage plant growth by colonizing the plant root and increase plants’ resistance to water stress. Besides, the farmers can use conservation tillage system in dry periods.
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