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Mycoflora, Mycotoxin Contamination and Proximate Mineral Composition of Smoke-Dried Frog (Aubria sp.) (Konko) Sold in Ibadan, Oyo State, Nigeria Texto completo
2015
Bukola Adebayo-Tayo | Folahanmi Adeyemi | Olubusola Odeniyi | Kayode Olaseinde
Mycoflora, mycotoxin contamination and proximate mineral composition of smoked-dried frog (Aubria sp.) samples purchased from different markets in Ibadan, Oyo State were investigated. A total of 20 composite samples made up of 120 smoked-dried frog samples were collected. The total fungi count ranged from 1.0 x103 – 8.0 x 103 cfu/g. A total of 70 fungal strains including: Alternaria sp., Aspergillus flavus, Aspergillus niger, Aspergillus tamarii, Cladosporium sphaerospermum, Fusarium compacticum, Fusarium oxysporum, Fusarium sacchari, Fusarium solani, Fusarium verticillioides, Penicillium chrysogenum, Penicillium citrinum, Penicillium oxalicum, Trichoderma viridae and Rhizophus sp. were isolated from the samples. All the samples were contaminated with aflatoxin and 70% were contaminated with deoxynivalenol (DON). The total Aflatoxin and DON in the two sampling ranged from 5.06h – 9.17a ppb, 1.86h – 5.58a ppb and 0.00 – 0.96 ppm and 0.00 – 0.09 ppm. The levels of mycotoxins contamination were within the maximum limit permitted. The Aspergillus flavus and Fusarium spp. were able to produce aflatoxin and DON which ranged from 1.65 – 3.56 ppb and 0.05 – 0.19 ppm. The percentage crude protein, K, Ca and Fe content in the samples ranged from 40.79j – 53.93a, 217.85 – 1235.83 mg/100 g, 4201 – 437.25 mg/100 g and 431.75 – 1065.0 mg/100 g. The moisture content ranged from 11.58h – 16.31a. The Cd, Zn and Cu content ranged from 0.00 – 0.22 mg/100 g, 9.43 – 5.20 mg/100 g and 7.05 – 18.58 mg/100 g. The presence of mycotoxigenic fungi and mycotoxin levels in the dried frog samples is of public health concern and proper attention is needed for the control of quality and adequate preservation before sales and consumption.
Mostrar más [+] Menos [-]Usage Level of Wheat Varieties and Problems in Agricultural Farms: A Case Study for Burdur and Isparta Province Texto completo
2015
Hülya Gül | Mevlüt Gül | Sultan Acun | Sinem Türk Aslan | Ayşe Öztürk | Burhan Kara | Zekeriya Akman
The main objective of the study is to determine the structure of seed usage of the wheat farms and development of its production in Isparta and Burdur provinces. The primary data used in this study were obtained by questionnaires in the region. Data obtained from the 150 of wheat cultivation farms belongs to the 2011 production period. The most important problems faced by farms were the low product prices and high input prices. Farmers pointed out that the development of wheat production can be provided by reducing the input costs such as; fertilizer, fuel, pesticide etc. The 97.3% of the wheat growing farms in the region make the seed dressing. About 52.7% of the interviewed enterprises are storing wheat and 74.7% of the farms are aware of the wheat varieties grown. About 52% of farms were found to be the use of certified seed. Certified seed usage rate is higher in the province of Isparta (69.3%) than Burdur. There is also a statistical difference in the use of certified seeds among the provinces. In the region, it was found that farms do not have enough information about the usage of certified seed and therefore it is necessary to transfer knowledge to the grower by the extension services.
Mostrar más [+] Menos [-]Production of Bioethanol from Waste Potato Texto completo
2015
Merve Duruyurek | Cihan Dusgun | Mehmet Fuat Gulhan | Zeliha Selamoğlu
Using primary energy sources in World as fossil fuels, causes air pollution and climate change. Because of these reasons, people looking for renewable energy suppliers which has less carbondioxide and less pollution. Carbon in biofuels is producing from photosynthesis. For this, burning biofuels don’t increase carbondioxide in atmosphere. Scientists predict that plants with high carbonhydrate and protein contents are 21. centuries biofuels. Potatoes are producing over 280 million in whole world and Turkey is 6th potato producer. Turkey produces 5250000 tonne of potatoes. Approximately 20% of potatoes are waste in Niğde. Our study aimed to produce bioethanol from Solanum tuberosum by using the yeast Saccharomyces cerevisiae. As a result renewable energy sources can be produced from natural wastes.
Mostrar más [+] Menos [-]Our Traditional Dessert which is to be Forgotten: UĞUT Texto completo
2015
Hasan Tangüler | Hasan Eleroğlu | Emir Ayşe Özer | Nursel Develi Işıklı
Uğut (wheatgrass marmalade / dessert) is a traditional Turkish food which is almost to be forgotten. It is produced in various regions of Turkey by boiling the mixture of wheatgrass juice, flour and water. The wheatgrass contains amino acids, protein, fiber, vitamins, minerals, and enzyme. It is reported that the wheatgrass has antioxidant, anticancer, anti-aging, laxative, diuretic and antibacterial effects due to its rich composition. Uğut is also a good source of carbohydrate because of its flour contents. In this article, the composition and production methods of Uğut were discussed.
Mostrar más [+] Menos [-]The Structure, Problems and Solutions of Fruit Sapling Producing Enterprises in Hatay Province Texto completo
2015
Nuran Tapkı | Faruk Emeksiz | Erdal Dağıstan
In this study, examined the structure and problems of fruit sapling producing enterprises and offers solutions in The Hatay Province. The data were obtained from 92 enterprises by the method of full count and face to face with producers. Of the 51.15% population in creating family business primary school graduates, the proportion of university graduates remained at 8.62%. The rate of agricultural engineer employment in the businesses is 2.18%. While 64.05% of the enterprisers the father's profession, this profession began taking 3.37's% of nursery education. Average potential family labour is the 4.22 male labour forces in enterprises. The family labour utilization rate was calculated as 50.71%. Of the 88.48% in fruit sapling businesses, 5.32's% in other agricultural productions and 5.22's% in non-agricultural jobs of total used men workforce. The businesses have average total land size of 25.74 acres which it has established 12 acres of fruit sapling production land. While 74.58% of the total fruit sapling land is property, 25.42's% is for rent situation. The operating capital is calculated as the average of 229.308 TL. The most common species of fruit sapling production were citrus (46.20%) and olive trees (35.29%). The problems faced by most of the farms in the region were high input prices, excessive bureaucratic procedures preventing memberships into the union, an inadequate amount of support provided by the state, production-threatening diseases of plants and difficulties in finding qualified staff in the region. The results show that enterprises need to increase their production capacity, to unite under one organization to facilitate the resolution of problems.
Mostrar más [+] Menos [-]The Symptoms of Herbicidal Action: The Case of Aclonifen Texto completo
2015
Özgür Kıvılcım Kılınç
The symptoms which were directly bound to the biochemical mode of action of an herbicide, other symptoms result from an indirect consequence of this action. The symptoms of herbicidal action deeply differed and that the climatic factors during the two first weeks after treatment could change definitely the result of the selective herbicide action. The repetitive observation of symptoms allows to inform the farmer about the tolerance or resistance of certain plant species, including the culture, for instance through the appearance of symptoms on the first leaves of the seedlings and their absence in the following leaves. As a whole, the accurate observation of herbicidal symptoms on plants is the essential, rapid and non-expensive analysis of treatment effectiveness at the field scale. The purpose of the current report is to describe the symptoms of a very complex herbicidal action, that of aclonifen involving two modes of action for the same molecule, approximately at the same concentration, and to compare these symptoms under field conditions and under controlled conditions, for a better understanding.
Mostrar más [+] Menos [-]Development of a PCR/RLB Test for Meat Source Authentication in Processed Meat and Meat Products Texto completo
2015
Ibrahim Abbasi | Al-Shareef Abdel-Kareem | Matouk Imad | Akkawi Muataz
Concern over food authenticity has increased as a result of an increase in the consumption of processed foods containing meat or animal products. This raises a number of issues where the presence of pork in such foods is considered unacceptable in most Muslim and Jewish communities around the world. It also applied to the prohibition of beef consumption among Hindus. In order to ensure the absence of unwished meat products or mixing of meats from different sources in processed foods, a specific and sensitive test is essential. For this purpose we developed a molecular test based on DNA amplification by polymerase chain reaction (PCR) of the cytochrome b gene followed by reverse line blot analysis (RLB). Using this method many samples may be treated simultaneously and meat origins can easily be detected from processed foods or foods containing mixed meat sources; also, added pork components such as fat may be identified by this methodology. The PCR/RLB method is considered to be a sensitive and specific technique; it can detect one nucleotide change within the PCR-amplified DNA segment.
Mostrar más [+] Menos [-]Importance of Prebiotic in Aquaculture Texto completo
2015
Arzu Özlüer-Hunt | Ferbal Özkan-Yılmaz | Mükerrem Çetinkaya
The world aquaculture industry shows a rapid increase in production recently. Depending on production methods, culture techniques and culture methods are also developing. With developing culture methods, decrease of water quality, increase of stress, decrease of food quality, increase bacterial, viral or parasite infections can suppress on growth. Lately the use of alternative materials such as prebiotics widespread to improve the health of the fish. A prebiotic is a non-digestible food ingredient that beneficially affects the host by selectively stimulating the growth and/or the activity of one or a limited number of bacteria in the colon. In this review, the importance and potential effects of some prebiotics are emphasized in aquaculture.
Mostrar más [+] Menos [-]Glycemic Index of (Zummita) A Commonly Barley Based Consumed Traditional Libyan Food Texto completo
2015
Mohamed Ahmida | Akram Elshebli | Ahmed Elzigl | Elmutazbellah Siddek
In Libya especially in Benghazi, Zummita is a traditional Libyan food consisting of 85% whole barley flour and is commonly consumed as a breakfast meal, and. Due to an increase in Type 2 diabetes and a lack of information on the effects of Zummita consumption on glycemic response, this study was performed to determine the glycemic index (GI) of Zummita. Fasted healthy subjects (6 males and 6 females) volunteered to consume either glucose or Zummita. The blood glucose concentrations were analyzed using capillary blood samples immediately before, 30, 60, 90 and 120 min after glucose or Zummita consumption. The GI value of Zummita was calculated by expressing the incremental area under the blood glucose response curve (IAUC) value for Zummita as a percentage of each subject’s average IAUC value for the glucose. The GI value of Zummita was found as 46.90 ± 7.56. This result indicates that Zummita should be classified as low GI food. More importantly, our result provides the GI value of a Libyan traditional food which was not determined previously. This valuable information will be significant for management and the prevention of diabetes mellitus in Libya and other countries having similar food tradition.
Mostrar más [+] Menos [-]The Effects of Different Treatments on Phytochemical and Volatiles Compositions of ‘Hicaznar’ pomegranate Fruit During Cold Storage Texto completo
2015
Ayşe Tülin Öz | Ebru Kafkas | Mozhganx Zarifikhosroshahi | Tülin Şahin
‘Hicaznar’ pomegranate fruits were stored under both modified atmosphere packaging (MAP) and normal atmosphere without packaging at +7oC temperature and % 85-90 RH for 18 weeks. Weight loss, % CO2/O2 gas changes, arils color changes [L (lightness) and C (chroma)] values, total soluble solids (TSS) content, pH, titratable acidity (TA), total phenolic content (mg/100mL), total flavonoid content (mg/100mL), antioxidant activity (%), malic acid (%), changes of sugar (glucose, fructose, saccarose and sorbitol) content and volatile aroma compounds of ‘Hicaznar’ pomegranate fruits were determined during cold storage. Both average weight loss of pomegranate fruits and aril L (lighness) colour value changes were increased while aril C (Chroma) colour changes was decrease slightly at the end of storage. Total phenolic content in control arils samples were determined 109.5 mg/100 mL while it was 127.8 mg/100 mL in MAP aril samples; also total flavonoid content was decreased in 26.8 (control) and 27.1 (MAP) respectively at the end of storage compared to begining. The decrease of TSS was statistically significantly different between treatments. Moreover in this study volatile profile of ‘Hicaznar’ pomegranate fruit was desribed and 27 volatile compounds identified using automatic headspace solid-phase microextraction gas chromatography -mass spectrometry (HS-SPME GC/MS) tecniques. ‘Hicaznar’ pomegranate fruits have alcohols, aldehide, alkan, acids, esters, terpene and another volatile. Both effects of storage type and duration were evaluated. The results showed that terpenes increased for both MAP and control fruit samples while alcohols, aldehide and acids were decreased for both of storage type at the end of storage.
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