Refinar búsqueda
Resultados 61-70 de 107
Use of Probiotics in Fermented Meat Products Texto completo
2014
Recep Palamutoğlu | Cemal Kasnak
In spite of a negative judgements among consumers about meat and meat products, in human nutrition meat and meat products are important for nutrient components which they contain essential nutrients. Intensively produced fermented meat product such as sucuk in our country and lactic acid bacteria (LAB) are used for production of various fermented sausages all over the world. LAB primarily used in order to increase the food safety of such products. LAB with probiotic properties have effect on product taste, flavour and aroma as well as the positive effects on functional and physiological properties. Positive effects of probiotics in human health and product properties in the absence of any adverse effects various cultures have been used for the production of probiotic fermented meat products. In the production of such products prepared dough which have meat and fat in the matrix form a suitable vehicle for probiotic cells. During production of products formation of lactic acid reduced the pH, during ripening conditions water activity reduced so these factors adversely affect viability of probiotic cells. For this reason protecting probiotic cultures from negative effects during exposure in the product and vitality of cells in human gastro-intestinal system to continue operating for consumption to be provided during the order process the cells are coated with microencapsuation. The use of probiotic microorganisms isolated from various foods is being investigated for the production of sausages. Studies on the effects of probiotics on human health of meat products are also needed. In this study the probiotic microorganisms used in the production of probiotic fermented sausages were investigated.
Mostrar más [+] Menos [-]The Effect of Essential Oils on Staphylococcus aureus Texto completo
2014
Seda Ozdikmenli | Nukhet Nilüfer Zorba
Diseases caused by Staphylococcus aureus are widespread through the world in spite of developing technology. S. aureus is an important pathogen causing food intoxications besides hospital infections by its antibiotic resistant strains. Nowadays, there has been worldwide increasing concern on usage of natural products to control microorganisms. One of these natural products is essential oils. They are produced from plants especially from spices and composed of many components and volatiles. This review summarizes informative literature on essential oils and their mode of antimicrobial action. In addition, current knowledge on in vitro researches on antibacterial activity of essential oils and food applications to control S. aureus has been discussed.
Mostrar más [+] Menos [-]Impacts of In Ovo Feeding of DL-Methionine on Hatchability and Chick Weight Texto completo
2014
İsa Coşkun | Güray Erener | Ahmet Şahin | Ufuk Karadavut | Aydın Altop | Aylin Ağma Okur
The aim of this study was to determine the effect of in ovo DL-methionine injection into the fertile broiler eggs on hatchability and relative chick weight. In the trial, 132 fertile broiler eggs were obtained from a breeder flock (34-wk-old Ross 308 parent stock). Fertile eggs were randomly assigned to two experimental groups. Experimental groups were 1) Control 2) DL-methionine injected group with three replicates. Injections were carried out at the 16th day of incubation. At the end of the study, hatchability was 90.29%, and 84.74% in control and DL-methionine injected eggs respectively. Relative chick weights were 70.04% and 72.70% control and DL-methionine injected group respectively. At the end of the study, it determined that injection of DL-methionine increased 3.8% relative chick weight according to control. It suggested that DL-methionine may use as an in ovo feed additive for obtain heavier chick.
Mostrar más [+] Menos [-]Determining Yield and Fruit Quality Traits of Henderson Grapefruit and Some Pomelo (Shaddock) Varieties under Adana Ecological Conditions Texto completo
2014
Berken Çimen | Meral İncesu | Turgut Yeşiloğlu | Bilge Yılmaz
Pomelo [Citrus grandis (L.) Osbeck] has the largest fruit size among citrus species. There are several cultivars for pomelo species which is sensitive to low temperatures thus its cultivation is possible in relatively preserved areas in subtropical regions. The interest to pomelo production has increased due to several reasons such as, its has a little or no bitterness in fruit flesh conversaly to grapefruit, avaibility of pigmented varieties, high concentration of vitamin C, total phenolics and carotenoids in fruit flesh, as well as its efficiency in destroying free radicals such as superoxide anion and hydrogen peroxide. Several pomelo varieties have been introduced to Turkey and adaptation studies have been established. In the present study, Reinking, Pomelo WN, Kao Panne and Citrus hassaku which is a spontaneous hybrid between pomelo and mandarin were investigated in terms of fruit yield and pomological characteristics. In addition, Henderson grapefruit was included in this study in order to obtain a comparasion between pomelo and grapefruit. A large variation was observed in fruit yield of cultivars established in 2011 and 2012. In 2011, the highest yield was determined in Henderson whereas it was obtained from Citrus hassaku in 2012. Pomelo varieties yielded between 5-60 kg fruit per tree and 8.6-50 kg fruit per tree in 2011 and 2012, respectively. In terms of pomological traits, Citrus hassaku had the highest fruit weight; Pink, Kao Panne and Reinking pomelos had the highest peel thickness and Pomelo WN yielded the highest TSS/TA ratio.
Mostrar más [+] Menos [-]Determination of Quantities of Host Protein after Infection with Erwinia amylovora of Apple, Pear And Quince Cultivars Texto completo
2014
Şerife Çetin | Kubilay Kurtuluş Baştaş
Fire blight disease caused by Erwinia amylovora is a destructive bacterial pathogen mainly on pears, apples and quinces from Rosaceae family. In this study, it was aimed determination of total protein amounts in different apple cultivars (Braeburn, Fuji, Gala and Golden), pear cultivars (Santa Maria and Williams) and quince cultivars (Eşme and Ekmek) in the infections of two virulent E. amylovora strains (Ea234-1 and Ea240-3) according as the time. It was taken leaf samples after leaf inoculation with E. amylovora (108 CFU ml-1) at 24th, 36th and 72nd hours. For verification of the infections, re-isolations were made from bacteria inoculated plants and the agent was identified as E. amylovora by biochemical, physiological and molecular tests. In determining the amounts of total protein and in the SDS-PAGE analyses were used Bradford and Laemmli methods, respectively, and absorbance values of protein extracts derived from the leaf samples taken, were obtained at 595 nm wavelength. According to the findings obtained; after infection of E. amylovora in the apple varieties comparing to controls, total protein concentrations at 24th hours increased and a decrease in the amount of 36th to 72nd hours and Braeburn has the highest protein content was determined. In the pear varieties, while total protein concentrations at 24th and 36th hours increased, a decrease in the amount of 72nd hour, and Santa Maria variety has the highest protein content was detected. In the quince varieties, total protein concentrations at 72th hour increased and Eşme variety has the highest protein content was identified. As a result of SDS-PAGE analysis, protein fractions which have different molecular weights were obtained. The protein bands were defined approximately 55-70 kDa and 35-55 kDa molecule weight on apple and quince varieties, respectively and also approx. 55-70 kDa in pear varieties.
Mostrar más [+] Menos [-]Selection of Almonds of Niğde Altunhisar Region Texto completo
2014
Gülsüm Alkan | Faik Ekmel Tekintaş | Halil Güner Seferoğlu | Engin Ertan
This study was to carried out to determine of promosing almond genotypes in Altunhisar county of Niğde province in 2013. 280 genotypes in terms of nut size, suture opening of the shell, shell thickness, softness of the shell, kernel color intensity, shriveling of kernel, kernel pubescence, kernel taste, percentage of double kernel, percentage of sound kernel, nut weight, shell thickness, nut length, nut width, nut thickness, nut shape, marking of outer shell, shell color, kernel weight, kernel length, kernel width, kernel thickness, kernel ratio, kernel size, percentages of twin kernels, width indice and thickness indice were examined. The genotyips had more than 0.70 g kernel weight and %25 kernel rate were taken for evaluation, Total Weight-Ranked Points were calculated with considering genotype quality situations. Nut size, suture opening of the shell, softness of the shell, kernel color, shriveling of kernel, kernel pubescence, kernel taste, percentage of double kernel, percentage of sound kernel etc. characters were used. 15 genotypes (98, 160, 196, 187, 162, 191, 282, 168, 176, 261, 213, 6, 112, 147, 241 ) taken highest points were selected as promosing genotypes. Selected genotypes had 2.37 (no 187) – 3.80 (no 241) g nut weight; 0.71 (no 187) – 1.0 (no 241) g kernel weight; %25.17 (no 162) - 29.97 (no 6) kernel ratio; 1.96 (no 282) – 3.29 (no 162) mm shell thickness; %0.00 – 19.00 percentage of double kernel; %0.00 – 5.00 percentage of twin kernel. It was found that in terms of softness of the shell,15 genotype was very hard; in terms of kernel weight, 14 genotypes were small and 1 genotype was medium; in terms of kernel taste, 12 genotypes were sweet and 3 genotypes were intermediate; in terms of kernel pubescence, 6 genotypes were intermediate, 9 genotypes were low; in terms of color intensity, 8 genotypes were intermediate light and 1 genotype was light and 6 genotypes were dark. In the begining of vegetation in 2014, in promosing genotypes, phenological observations will be taken and in the end of the second year of the research, superior genotypes will be determined.
Mostrar más [+] Menos [-]Determination of Performance of Yearlings Fed with Rations Containing Wheat, Maize and Buckwheat Straws Texto completo
2014
Zeynel Acar | Mehmet Öztürk | Gürhan Keleş
As well as cereal straw, the use of maize straw in ruminant feeding has been increasing as the feed shortage widens. In addition, cultivation of buckwheat with high straw yield potential is becoming widespread. Thus, performance of 15 female Karya yearlings fed with ration containing wheat, maize or buckwheat straws were compared. The yearlings fed either containing wheat, maize or buckwheat straws in three total mixed rations (30% straw in dry matter) that were consisted of, maize silage, concentrate and cracked maize, formulated to provide 150 g daily live weight gain for 21 d. Total mixed rations was prepared based on the nutritive value of wheat straw. Prior to feeding trial yearlings were acclimatized to their respective feed for a period of 14 d. Straws were included in total mixed rations following the chopping at 1-2 cm. Daily live weight gain and dry matter intake of yearlings fed with mixed ration containing wheat, maize or buckwheat straw were 88, 85 and 135 g/d (P=0.10) and 954, 931 and 1078 g/d (P=0.09), respectively. However, crude protein intake of yearlings (g/d) fed with the ration containing buckwheat straw 14% higher than yearlings fed with the ration containing wheat or maize straw. It was concluded that performance of yearling fed with ration containing buckwheat straws was superior to performance of yearlings fed with ration containing wheat and maize straw, while performance of yearling fed with ration containing wheat or maize straw was similar.
Mostrar más [+] Menos [-]The Comparison of Reproduction Biology of Capoeta trutta (Heckel, 1843) Populations from Ağın and Örencik Region of Keban Dam Lake Texto completo
2014
Özgür Canpolat | Metin Çalta
In this study, it was aimed to determine reproduction biology of Capoeta trutta (Heckel, 1843) obtained from Ağın and Örencik region of Keban Dam Lake. For this purpose, fish samples were monthly collected during a year and their sexes were determined. The maturation age for female Capoeta trutta caught from Ağın region was determined as 2 while it was 3 for females from Örencik regions. Maturation age was found to be 2 for male C. trutta for all regions. The Gonadosomatic Index Value (GSI) reached to the highest in May for both sexes and reproduction period for the fish was estimated between May and June.
Mostrar más [+] Menos [-]New Discussion Subject of Meat Industry: “Pink Slime” Texto completo
2014
Cem Okan Özer | Birol Kılıç
Pink slime is a meat source which is obtained by the separation of meat particles on trimmed fats the use of separation techniques. Pink slime is an important source for meat industry to meet the consumer demands about consumption of low-fat and low-cost meat products. Furthermore, processing of low-value trimming products to high-value products provide a tangible advantage for meat industry. The use of ammonia hydroxide in the process of pink slime caused a concern about consumer health. Since meatball and wieners with high level of pink slime are in school daily diet program, this meat source became important debate issue. In USA, use of pink slime up to 15% in ground beef based products is permitted without specify on the label, but is not sold for direct consumption. Production and consumption of pink slime is strictly prohibited in the European Union. There is no legal regulation on this issue in Turkey. In this review, the manufacturing method and historical development, advantages, disadvantages, applications and result of scientific studies about pink slime are presented.
Mostrar más [+] Menos [-]Accumulation Of Heavy Metals in Bee Products Effect of Distance From Highway Texto completo
2014
Servet Arslan | Adem Arıkan
Distance from the highway to the effect of heavy metal accumulation in bee products in order to investigate in this study; four different apiaries which have four km interval have been established from Tokat-Turhal highway side towards the north. Each station of a total 9 of 36 units bee colonies were placed. Honey, pollen and propolis samples were taken from these colonies in the months of April-July in 2009. The obtained samples (copper, zinc, iron, cadmium, chromium, lead and heavy metals such as manganese) content were investigated. According to the distance from the highway in honey samples averages of zinc, iron, chromium and manganese, there was no statistical difference between averages, while averages of copper, cadmium and lead were found significant differences between the averages. In the pollen samples, averages of zinc, iron, cadmium, chromium and manganese indicated no statistical difference between the averages, while, averages of copper and lead were found to be statistically significant. İn the Propolis samples, averages of copper, zinc, iron, chromium, lead and manganese determined no statistical difference between the averages, significant differences were detected between the averages of cadmium. Cadmium accumulation in the maximum occurs at the edge of the highway, the maximum accumulation of other metals have been seen in other stations When considering, due to traffic only metal cadmium at a level that considered as important in bee products be said to constitute pollution.
Mostrar más [+] Menos [-]