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The effect of different harvest period on fruit quality and phytochemical properties of short and day neutral strawberries Texte intégral
2015
Onur Saraçoğlu | Mustafa Özgen
In this study, the effect of different harvest period on fruit quality and phytochemical properties of short and day neutral strawberries was investigated. For this purpose, two day-neutral ('Fern', 'Kabarl') and four short day ('Camorosa', 'Sweet Charlie', 'Rubygem' and 'Festival') strawberry varieties were harvested at three different harvest period. Harvested fruits were analysed 15 and 30 days intervals for short and day-neutral varieties. Pomological analysis such as fruit size, firmness, fruit weight, titratable acidity (TA), total soluble solids (TSS), pH and total anthocyanin, total phenolic content and antioxidant capacity were studied. Results of the present study indicated that fruits from later harvest periods displayed smaller fruit size, lower pH and TSS content but higher TA and fruit firmness. Also, both short and day neutral varieties have higher phytochemical content at later harvest period in terms of total phenolics, total anthocyanin and antioxidant capacity.
Afficher plus [+] Moins [-]Situation Analysis of the Feed Manufacturing Industry in Diyarbakır Province Texte intégral
2015
Muzaffer Denli | Ramazan Demirel | Abdullah Sessiz
This research was carried out by visiting total 14 feed mills (8 of them are active, 6 of them are passive) in Diyarbakır province in order to get information on feedstuffs, production, quality, technical capacity, marketing, problems and expectations from public authority. Each feed mill were visited, data were collected by face to face interview, total 34 questions were asked and results were evaluated. According to survey results; total technical capacity of feed mills in Diyarbakır is 388.800 Ton/year, however active capacity is 230.400 Ton/year and their plant utilization is quite low (50.3%), average feed production capacity is 11.9 Ton/hour, daily production is 403 Ton. Feed industrialists primarily indicated that unconscious farmers (85.7%), higher feedstuff price (75%) and unfair competition and unregistered production (62.5%) are the most important problems in the industry. Cereals, wheat bran and cottonseed meal were obtained from South-eastern Anatolia Region, however, other feedstuffs and feed additives were bought from other regions of Turkey. Primary preferences of buying of feedstuffs are: quality of feedstufs 50%, easily obtaining 31%, cheap 19% for feedstuffs. Manufactured feeds were marketed by as follows; 34% distributers, 33% distributors and in factory, 22% directly to farmer and 11% in other ways. As a result, technical facilities were found adequate, feed mill owners are conscious to establish laboratory, they have enough production capacity but, except one of them, they produce only one shift in a day.
Afficher plus [+] Moins [-]In vitro Applications for the Increasing of Root-Related Secondary Metabolite Production in Medicinal Plants and Vegetables Texte intégral
2015
Tunhan Demirci | Pınar Özdamar | Nilgün Göktürk Baydar
Secondary metabolites, gaining importance in pharmaceutical, cosmetic, perfumery, food industry and agrarian struggle, are synthesized in different organs such as root, leaves, shoot and seed in plants. These compounds are defined as “light in bulk” because of the low synthesis rate but “high in value” because of the wide range of applications, activities and economic values. Obtaining of the secondary metabolites found in roots by conventional methods is based on dismantling of these plants from the nature or the cultural field and isolating by the different methods. Detachment of plants from nature causes the loss of genetic resources. And it has some difficulties as the challenges and differences in terrain and climate conditions, low metabolite yield and quality and more labor. Thus a new approaches is needed to enable more economic, higher metabolite yield and quality compared to the conventional methods. Therefore, in vitro techniques have gained importance. With this review, it was aimed to inform in vitro applications used to increase root-related secondary metabolites production in order to guide future researches.
Afficher plus [+] Moins [-]Effect of Lactococcin BZ and Enterocin KP on the Activity of Yoghurt Cultures Texte intégral
2015
Nilgün Öncül | Zeliha Yıldırım | Metin Yıldırım
In this study, the effects of lactococcin BZ from Lactococcus lactis ssp. lactis BZ and enterocin KP from Enterococcus faecalis KP (1600 AU/mL) on the activities of three different yoghurt cultures (Y1 and Y2: CHR Hansen, Denmark; Y3: Sacco, Italy) were investigated. Lactic acid bacteria counts and pH values of the samples were determined during the incubation period (at 42°C for 24 h). It was found that lactococcin BZ had bactericidal effect against only one yoghurt culture whereas enterocin KP was effective against two yoghurt cultures. When lactococcin BZ and enterosin KP were used in combination (1:1), they showed bactericidal effect against two yoghurt cultures.
Afficher plus [+] Moins [-]New Approaches to Anti-Stress Practices in Poultry Texte intégral
2015
Atilla Taşkın | Ahmet Şahin | Ömer Camcı | Güray Erener
Parameters of health, productivity, behaviour and physiology which are used in order to determine the stress shaped by the effects of various factors in poultries can only be detected when the effects of stress emerge; in other words, when the changes are shaped. Therefore; it is important to interfere before the emergence of these indications in order to develop animal welfare by preventing stress. Information programmes, as traditional methods, and vitamin applications as well as anti-stress effects of herbal extracts have recently been studied in order to reduce the effects of stress. Moreover; such applications as crossbreeding native race, which are highly tolerated against temperature stress, with the commercial ones, usage of blue LED light, capturing exercises, enriched environment, adding roosters into the flocks of hen and finally temperature exercises in chick period are also tried as anti-stress preventions. In this paper, new approaches to the reduction of stress or stress sensitivity in poultries have been studied.
Afficher plus [+] Moins [-]Descriptions and Seasonal Variations of Various Biotopes and Ecotones of Indus River Bed at Chashma Barrage, Pakistan Texte intégral
2015
Tahira Hussain | Zahid Baig Mirza
The aim of the study was to find the diversity index of flora, investigation of species at pond area and biomass calculation of economic plants at Chashma Barrage, Pakistan. The study area consisted of river Bella, pond area and eastern edge of river bed near Ali Wali Ghandi village at Chashma Barrage. The seasonal variation in the abundance of floral species was also related with the increase in temperature. Cyperus deformus, Phragmites kerka, Saccharum spontaneum were most abundant in the river ‘Bella’ habitat. Persicassia amphibian, Cyperus deformus and Polygonum royleanum were abundant in Aliwali Ghandi habitat. Aquatic plants of families Potamogetonaceae, Nymphaeaceae, Najadaceae and Hydrocharitaceae were most common in pond area . The ecotones were wide and variable between the aquatic biotopes and the river bed biotopes. On the Aliwali Ghandi site the moist soil with puddles and small channels of water were found and Cyperus deformus biotope prevailed. In the river ‘Bella’ site Phragmites, Sacharum was the biotope and in water Hydrilla biotope was recorded. An increase in biomass of Phragmites, Sacharum and Typha was recorded with the passage of time. The species of the area have significant importance in socio economics of the local community of Chashma Barrage.
Afficher plus [+] Moins [-]Antioxidant Activity and Phenolic Content of Apple Cider Texte intégral
2015
Nilgün Havva Budak | Filiz Ozçelik | Zeynep Banu Güzel-Seydim
Fruit and vegetables are an important component of a healthy diet and the main antioxidant suppliers in the human diet. Consumption of foods derived from fruits and vegetables is also essential; fruit juices, ciders, wines, and vinegars also contain significant amounts of polyphenolic compounds. The aim of the study was to determine the effect maceration of antioxidant activity and phenolic content of apple cider. Red delicious apples were used to produce natural apple cider with and without inclusion of maceration. Samples were taken from fresh red apple juice, macerated samples and apple cider. Apple cider (maceration was applied) (CAM) had the highest total phenolic content, chlorogenic acid, ORAC and TEAC levels. Chlorogenic acid was the dominant phenolic substance in apple juice and cider samples and chlorogenic acid was increased with maceration process.
Afficher plus [+] Moins [-]Effects Of Drought Stress on Germination in Fourteen Provenances of Pinus Brutia Ten. Seeds in Turkey Texte intégral
2015
Hakan Şevik | Nihat Ertürk
Pinus brutia Ten., Red pine, known to be tough drought resistant pine specie, could effectively be used for afforestation of disturbed areas. It is of great interest for the afforestation in arid zones. Appropriate seed sources for the specific areas guarantees reforestation success. Away from its native areas Pinus brutia Ten. is planted for its ornamental value and timber production purposes. Selection of drought resistant provenances can very well increase the survival success. In this study, the effects of water potential on germination were studied in fourteen provenances of Pinus brutia Ten. from Turkey. Water potentials between 0 and -8 bars were obtained using polyethylene glycol 6000 (PEG-6000) solutions. Seeds were kept for 35 day at 20 ± 0.5°C. A decrease in water potential produced a marked reduction in germination percentage and germination value. As a result, significant variations between the provenances were found. It was determined that, under a -8 bar water stress, Isparta-Bucak and Mersin-Silifke, respectively corresponding to 58% and 57% of the control group, were the least water stress affected provenances.
Afficher plus [+] Moins [-]The Survival of Bifidobacterium infantis 20088 and Physicochemical Changes During Refrigeration Storage of Selected Fermented Traditional Sudanese Fruit Beverages Texte intégral
2015
Wala Salah Elden Babekir | Abubakar Awad Siddig | Barka Mohammed Kabeir
This study was carried out to evaluate survival of Bifidobacterium infantis 20088 in fermented beverage formulated from selected traditional Sudanese fruits Gudaim and dom. The viable counts of the strain and physiochemical changes during refrigeration were determined. 10% beverages (w/v) were prepared from dom and gudaim powder. 2.5% (w/w) skim milk was supplemented to each formulation to provide the required nutrient for bacteria growth during the fermentation. After sterilization and cooling, the mixture was inoculated with a 10% culture of B. infants 20088 followed by incubation for 36 h at 37°C. Reconstituted skim milk was used as control. Fermented beverages were held at refrigeration (4°C) for a period of 2 weeks. During the refrigeration storage of the fermented beverages there was significant reduction in Bifidobacterium infantis of all fermented beverages. Nevertheless, the strain was maintained high; fulfill the number required to presence in probiotic foods, which was at least 6 log CFU/ml fermented product. There was no significantly difference in TSS and pH as compared to their initial at the beginning of fermentation except in pH of fermented gudaim. Therefore gudaim and dom are suitable carrier to deliver Bifidobacterium infantis 20088 to consumer.
Afficher plus [+] Moins [-]PCR Based Detection of Shiga Toxin Producing E. coli in Commercial Poultry and Related Environments Texte intégral
2015
Homaira Anzum Himi | Md. Shafiullah Parvej | M. Bahanur Rahman | K M Nasiruddin | Wahedul Karim Ansari | Md. Mostakin Ahamed
Shiga toxin (Stx)-producing E. coli (STEC) is the most important foodborne pathogen which is the causal agent of mild diarrhea, bloody diarrhea, hemolytic-uremic syndrome (HUS) in human. The present study was designed to determine the prevalence and identification of Shiga toxin (Stx)-producing E. coli in poultry, detection of its source of infection in poultry and transmission pattern to human. For this purpose a total of 150 samples (cloacal swab-60, feed -15, water-15 and egg -60) were collected and analyzed in bacteriology laboratory by cultured in different bacteriological media followed by gram’s staining, biochemical tests and Polymerase Chain reaction (PCR). The PCR was performed by targeting 16s rRNA gene and shiga toxin producing gene in E. coli. Out of 150 collected samples, E. coli was found in 81 (54%) samples. Presence of E. coli was 100% in both feed (n=15) and egg (n=60), whereas 10% in cloacal swab (n=6). Water samples were totally free of E. coli. The stx2 gene was detected in all samples whether all samples were negative for stx1 gene. The study revealed that, poultry feed acts as a source of E. coli infection in poultry, which may be transmitted to environment and human via meat or eggs. Antibiotic sensitivity test revealed that isolated bacteria were highly sensitive to Ciprofloxacin.
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